BMW B48 and B46 engine: the complete buyer's guide

The B48 is BMW's modular 2.0 litre turbo four-cylinder from 2014, used in the F30 320i and 330i, the G20 320i and 330i, the G30 520i and 530i, the F48 X1, the G01 X3 20i and 30i, the G29 Z4 sDrive20i and 30i, the Toyota Supra 2.0 and many MINI models. The B46 is the version for some markets and front-drive applications.

It is efficient and robust, and it is one of the most common used engines from modern BMWs.

• Production: 2014–2026
• Versions covered: B48A20, B48B20, B46B20, B48B20TU and B48B20B
• Output range: 192–258 hp
• Fuel and layout: petrol inline-4
• Fitted to: 13 BMW models across 9 chassis generations
• In our stock now: 490 units from 956,00 € — browse all B48 and B46 engines

The B48 and B46 at a glance

The table lists every B48 and B46 version we supply with its capacity, layout, output and production years. Use it with your car's engine code to find the right unit.

Across 5 versions, output runs from 192 to 258 hp. The spread reflects different capacities, tuning for different markets and the technical updates BMW made over 13 years of production.

History of the B48 and B46

BMW launched the B48 as the four-cylinder member of the B-series with a 500 cc-per-cylinder layout, twin-scroll turbo and integrated exhaust manifold. It replaced the N20.

2014: the B48A20 arrived with 2.0 L and 192 hp in the MINI F56 Cooper S, BMW F48 X1 20i and BMW F39 X2 20i.

2014: the B48B20 arrived with 2.0 L and 258 hp in the BMW G20 330i, BMW G30 530i and BMW F30 330i. Compared with the B48A20, it added 66 hp.

2015: the B46B20 arrived with 2.0 L and 258 hp in the BMW F30 330i SULEV, BMW G30 530i SULEV and BMW G01 X3 30i. It matched the B48B20 for power.

2018: the B48B20TU arrived with 2.0 L and 258 hp in the BMW G20 330i, BMW G30 530i and BMW G01 X3 30i. It matched the B46B20 for power.

2019: the B48B20B arrived with 2.0 L and 258 hp in the BMW G20 330i, BMW G30 530i and BMW G01 X3 30i. It matched the B48B20TU for power.

Every B48 and B46 version explained

B48A20 (2.0 L, 192 hp)

Built from 2014 to 2024, the B48A20 displaces 2.0 L in an inline-4 layout and is turbocharged. It produces 192 hp and 280 Nm on petrol. That is about 96 hp and 140 Nm per litre, a strong figure for a road engine of its era. Within the B48 and B46 family, the B48B20 (258 hp), B46B20 (258 hp) and B48B20TU (258 hp) are more powerful. It was fitted to the MINI F56 Cooper S, BMW F48 X1 20i and BMW F39 X2 20i. See every B48A20 in stock.

Reading the code: B marks a B-series code, BMW's modular engine family introduced from 2013 with 500 cc per cylinder; 48 is the family number; A stands for petrol, transverse installation for front-drive cars; 20 is the capacity in decilitres, so 2.0 litres.

We have 21 B48A20 units in stock, priced from 956,00 € to 3.957,00 €.

B48B20 (2.0 L, 258 hp)

The B48B20 is a 2.0 L inline-4 petrol engine, turbocharged, rated at 258 hp and 400 Nm. BMW built it from 2014 to 2026. That is about 129 hp and 200 Nm per litre, a high specific output that reflects a performance-focused design. Within the B48 and B46 family, it is the most powerful version, while the B48A20 (192 hp) is milder. It was fitted to the BMW G20 330i, BMW G30 530i, BMW F30 330i, BMW G01 X3 20i, BMW G05 X5 40i and Supra 2.0. See every B48B20 in stock.

Reading the code: B marks a B-series code, BMW's modular engine family introduced from 2013 with 500 cc per cylinder; 48 is the family number; B stands for petrol, longitudinal installation for rear-drive and xDrive cars; 20 is the capacity in decilitres, so 2.0 litres.

We have 466 B48B20 units in stock, priced from 995,00 € to 4.795,00 €.

B46B20 (2.0 L, 258 hp)

B46B20: 2.0 L, inline-4, petrol, turbocharged. Output is 258 hp with 400 Nm of torque, and production ran from 2015 to 2026. That is about 129 hp and 200 Nm per litre, a high specific output that reflects a performance-focused design. Within the B48 and B46 family, it is the most powerful version, while the B48A20 (192 hp) is milder. It was fitted to the BMW F30 330i SULEV, BMW G30 530i SULEV and BMW G01 X3 30i.

Reading the code: B marks a B-series code, BMW's modular engine family introduced from 2013 with 500 cc per cylinder; 46 is the family number; B stands for petrol, longitudinal installation for rear-drive and xDrive cars; 20 is the capacity in decilitres, so 2.0 litres.

B48B20TU (2.0 L, 258 hp)

B48B20TU: 2.0 L, inline-4, petrol, turbocharged. Output is 258 hp with 400 Nm of torque, and production ran from 2018 to 2026. That is about 129 hp and 200 Nm per litre, a high specific output that reflects a performance-focused design. Within the B48 and B46 family, it is the most powerful version, while the B48A20 (192 hp) is milder. It was fitted to the BMW G20 330i, BMW G30 530i, BMW G01 X3 30i and BMW G22 430i. See every B48B20TU in stock.

Reading the code: B marks a B-series code, BMW's modular engine family introduced from 2013 with 500 cc per cylinder; 48 is the family number; B stands for petrol, longitudinal installation for rear-drive and xDrive cars; 20 is the capacity in decilitres, so 2.0 litres; TU identifies the technical update.

We have 2 B48B20TU units in stock, priced from 3.046,00 € to 4.795,00 €.

B48B20B (2.0 L, 258 hp)

Built from 2019 to 2026, the B48B20B displaces 2.0 L in an inline-4 layout and is turbocharged. It produces 258 hp and 400 Nm on petrol. That is about 129 hp and 200 Nm per litre, a high specific output that reflects a performance-focused design. Within the B48 and B46 family, it is the most powerful version, while the B48A20 (192 hp) is milder. It was fitted to the BMW G20 330i, BMW G30 530i and BMW G01 X3 30i. See every B48B20B in stock.

Reading the code: B marks a B-series code, BMW's modular engine family introduced from 2013 with 500 cc per cylinder; 48 is the family number; B stands for petrol, longitudinal installation for rear-drive and xDrive cars; 20 is the capacity in decilitres, so 2.0 litres; B identifies the version or output stage.

We have 33 B48B20B units in stock, priced from 1.143,00 € to 3.737,00 €.

Which cars use the B48 and B46

The B48 and B46 was fitted to 13 models. The list below is grouped by chassis generation so you can find your car quickly. Always confirm the exact code with your VIN, because BMW often used more than one engine in the same model.

MINI F56 third-generation MINI hatch (2014–2024)

In the third-generation MINI hatch, built 2014–2024 as a hatchback, the B48 and B46 powered the Cooper S (B48A20, 192 hp).

For an F56, confirm the production date as well as the model: BMW often changed engine versions at the mid-life update. We currently have 4 B48 and B46 units from F56 donor cars.

BMW F48 second X1 (2015–2022)

In the second X1, built 2015–2022 as an SAV, the B48 and B46 powered the X1 20i (B48A20, 192 hp).

When ordering for an F48, check whether the car is front-drive or xDrive and whether it has a manual or automatic gearbox, because the sump and flywheel can differ. We currently have 11 B48 and B46 units from F48 donor cars. All F48 engines in stock.

The X1 20i uses the B48A20. BMW X1 engines for sale.

BMW F39 first X2 (2017–2023)

In the first X2, built 2017–2023 as an SAC, the B48 and B46 powered the X2 20i (B48A20, 192 hp).

The quickest way to confirm the right B48 and B46 for your F39 is to send us the VIN; we check the engine code, the gearbox and the drive type. We currently have 1 B48 and B46 unit from F39 donor cars. All F39 engines in stock.

The X2 20i uses the B48A20. BMW X2 engines for sale.

BMW G20 seventh 3 Series (2018–)

In the seventh 3 Series, built 2018– as a saloon, the B48 and B46 powered the 330i (B48B20, 258 hp), 330i (B48B20TU, 258 hp) and 330i (B48B20B, 258 hp).

When ordering for a G20, check whether the car is rear-drive or xDrive and whether it has a manual or automatic gearbox, because the sump and flywheel can differ. We currently have 94 B48 and B46 units from G20 donor cars. All G20 engines in stock.

The 330i uses the B48B20. BMW 330i engines for sale.

The 330i uses the B48B20TU. BMW 330i engines for sale.

The 330i uses the B48B20B. BMW 330i engines for sale.

BMW G30 seventh 5 Series (2016–2023)

In the seventh 5 Series, built 2016–2023 as a saloon, the B48 and B46 powered the 530i (B48B20, 258 hp), 530i SULEV (B46B20, 258 hp), 530i (B48B20TU, 258 hp) and 530i (B48B20B, 258 hp).

For a G30, confirm the production date as well as the model: BMW often changed engine versions at the mid-life update. We currently have 84 B48 and B46 units from G30 donor cars. All G30 engines in stock.

The 530i uses the B48B20. BMW 530i engines for sale.

The 530i SULEV uses the B46B20. BMW 530i engines for sale.

The 530i uses the B48B20TU. BMW 530i engines for sale.

The 530i uses the B48B20B. BMW 530i engines for sale.

BMW F30 sixth 3 Series (2011–2019)

In the sixth 3 Series, built 2011–2019 as a saloon, the B48 and B46 powered the 330i (B48B20, 258 hp) and 330i SULEV (B46B20, 258 hp).

The quickest way to confirm the right B48 and B46 for your F30 is to send us the VIN; we check the engine code, the gearbox and the drive type. We currently have 85 B48 and B46 units from F30 donor cars. All F30 engines in stock.

The 330i uses the B48B20. BMW 330i engines for sale.

The 330i SULEV uses the B46B20. BMW 330i engines for sale.

BMW G01 third X3 (2017–2024)

In the third X3, built 2017–2024 as an SAV, the B48 and B46 powered the X3 20i (B48B20, 258 hp), X3 30i (B46B20, 258 hp), X3 30i (B48B20TU, 258 hp) and X3 30i (B48B20B, 258 hp).

The quickest way to confirm the right B48 and B46 for your G01 is to send us the VIN; we check the engine code, the gearbox and the drive type. We currently have 86 B48 and B46 units from G01 donor cars. All G01 engines in stock.

The X3 20i uses the B48B20. BMW X3 engines for sale.

The X3 30i uses the B46B20. BMW X3 engines for sale.

The X3 30i uses the B48B20TU. BMW X3 engines for sale.

The X3 30i uses the B48B20B. BMW X3 engines for sale.

BMW G05 fourth X5 (2018–)

In the fourth X5, built 2018– as an SAV, the B48 and B46 powered the X5 40i (B48B20, 258 hp).

When ordering for a G05, check whether the car is rear-drive or xDrive and whether it has a manual or automatic gearbox, because the sump and flywheel can differ. All G05 engines in stock.

The X5 40i uses the B48B20. BMW X5 engines for sale.

Other models with the B48 and B46

The B48 and B46 also powered the Supra 2.0 (B48B20, 258 hp).

BMW G22 second 4 Series coupé (2020–)

In the second 4 Series coupé, built 2020– as a coupé, the B48 and B46 powered the 430i (B48B20TU, 258 hp).

The quickest way to confirm the right B48 and B46 for your G22 is to send us the VIN; we check the engine code, the gearbox and the drive type. We currently have 7 B48 and B46 units from G22 donor cars. All G22 engines in stock.

The 430i uses the B48B20TU. BMW 430i engines for sale.

Will a B48 and B46 fit my BMW? Model-by-model answers

Short answers for every model that left the factory with a B48 and B46, with prices from our current stock.

Will the B48A20 fit my MINI F56 Cooper S?

The B48A20 is the original engine for the MINI F56 Cooper S, which makes it the straightforward choice. The third-generation MINI hatch was built 2014–2024, and the B48A20 was produced 2014–2024, so check that your car's build date falls inside that window. Confirm the drive type (front-drive or ALL4), the gearbox (manual or automatic) and the emissions standard, because these can change the sump, the flywheel and the software. Send us the VIN and we check all of it for you.

How much is a replacement engine for an MINI F56 Cooper S?

We have 3 B48A20 engines from F56 donor cars, priced from 1.448,00 € to 1.943,00 €. Delivery to your door is included, and the engine carries a 12-month warranty when fitted by a qualified workshop. Add fitting labour and the parts you replace at the same time — seals, cooling parts and mounts — to estimate the total.

Will the B48A20 fit my BMW F48 X1 20i?

The B48A20 is the original engine for the BMW F48 X1 20i, which makes it the straightforward choice. The second X1 was built 2015–2022, and the B48A20 was produced 2014–2024, so check that your car's build date falls inside that window. Confirm the drive type (front-drive or xDrive), the gearbox (manual or automatic) and the emissions standard, because these can change the sump, the flywheel and the software. Send us the VIN and we check all of it for you.

How much is a replacement engine for a BMW F48 X1 20i?

We have 5 B48A20 engines from F48 donor cars, priced from 1.641,00 € to 2.437,00 €. Delivery to your door is included, and the engine carries a 12-month warranty when fitted by a qualified workshop. Add fitting labour and the parts you replace at the same time — seals, cooling parts and mounts — to estimate the total.

Will the B48A20 fit my BMW F39 X2 20i?

For the BMW F39 X2 20i, the B48A20 is the factory engine and the one to order. The first X2 was built 2017–2023, and the B48A20 was produced 2014–2024, so check that your car's build date falls inside that window. Confirm the drive type (front-drive or xDrive), the gearbox (manual or automatic) and the emissions standard, because these can change the sump, the flywheel and the software. Send us the VIN and we check all of it for you.

How much is a replacement engine for a BMW F39 X2 20i?

We have 1 B48A20 engine from F39 donor cars, priced from 1.785,00 €. Delivery to your door is included, and the engine carries a 12-month warranty when fitted by a qualified workshop. Add fitting labour and the parts you replace at the same time — seals, cooling parts and mounts — to estimate the total.

Will the B48B20 fit my BMW G01 X3 20i?

For the BMW G01 X3 20i, the B48B20 is the factory engine and the one to order. The third X3 was built 2017–2024, and the B48B20 was produced 2014–2026, so check that your car's build date falls inside that window. Confirm the drive type (rear-drive or xDrive), the gearbox (manual or automatic) and the emissions standard, because these can change the sump, the flywheel and the software. Send us the VIN and we check all of it for you.

How much is a replacement engine for a BMW G01 X3 20i?

We have 86 B48B20 engines from G01 donor cars, priced from 1.310,00 € to 4.153,00 €. Delivery to your door is included, and the engine carries a 12-month warranty when fitted by a qualified workshop. Add fitting labour and the parts you replace at the same time — seals, cooling parts and mounts — to estimate the total.

Will the B48B20 fit my BMW G05 X5 40i?

Yes, the BMW G05 X5 40i left the factory with the B48B20, so a B48B20 from another car is the direct replacement. The fourth X5 was built 2018–, and the B48B20 was produced 2014–2026, so check that your car's build date falls inside that window. Confirm the drive type (rear-drive or xDrive), the gearbox (manual or automatic) and the emissions standard, because these can change the sump, the flywheel and the software. Send us the VIN and we check all of it for you.

How much is a replacement engine for a BMW G05 X5 40i?

We have 466 B48B20 engines in stock, priced from 995,00 € to 4.795,00 €. Delivery to your door is included, and the engine carries a 12-month warranty when fitted by a qualified workshop. Add fitting labour and the parts you replace at the same time — seals, cooling parts and mounts — to estimate the total.

Will the B48B20 fit my Supra 2.0?

Yes, the Supra 2.0 left the factory with the B48B20, so a B48B20 from another car is the direct replacement. Confirm the drive type (rear-drive or xDrive), the gearbox (manual or automatic) and the emissions standard, because these can change the sump, the flywheel and the software. Send us the VIN and we check all of it for you.

How much is a replacement engine for a Supra 2.0?

We have 466 B48B20 engines in stock, priced from 995,00 € to 4.795,00 €. Delivery to your door is included, and the engine carries a 12-month warranty when fitted by a qualified workshop. Add fitting labour and the parts you replace at the same time — seals, cooling parts and mounts — to estimate the total.

Will the B46B20 fit my BMW F30 330i SULEV?

The B46B20 is the original engine for the BMW F30 330i SULEV, which makes it the straightforward choice. The sixth 3 Series was built 2011–2019, and the B46B20 was produced 2015–2026, so check that your car's build date falls inside that window. Confirm the drive type (rear-drive or xDrive), the gearbox (manual or automatic) and the emissions standard, because these can change the sump, the flywheel and the software. Send us the VIN and we check all of it for you.

How much is a replacement engine for a BMW F30 330i SULEV?

We do not have a B46B20 on the shelf for the F30 330i SULEV at the moment. Units arrive regularly; send us your VIN and we will tell you when the next one is ready and what it will cost, including delivery.

Will the B46B20 fit my BMW G30 530i SULEV?

For the BMW G30 530i SULEV, the B46B20 is the factory engine and the one to order. The seventh 5 Series was built 2016–2023, and the B46B20 was produced 2015–2026, so check that your car's build date falls inside that window. Confirm the drive type (rear-drive or xDrive), the gearbox (manual or automatic) and the emissions standard, because these can change the sump, the flywheel and the software. Send us the VIN and we check all of it for you.

How much is a replacement engine for a BMW G30 530i SULEV?

We do not have a B46B20 on the shelf for the G30 530i SULEV at the moment. Units arrive regularly; send us your VIN and we will tell you when the next one is ready and what it will cost, including delivery.

Will the B46B20 fit my BMW G01 X3 30i?

The B46B20 is the original engine for the BMW G01 X3 30i, which makes it the straightforward choice. The third X3 was built 2017–2024, and the B46B20 was produced 2015–2026, so check that your car's build date falls inside that window. Confirm the drive type (rear-drive or xDrive), the gearbox (manual or automatic) and the emissions standard, because these can change the sump, the flywheel and the software. Send us the VIN and we check all of it for you.

How much is a replacement engine for a BMW G01 X3 30i?

We do not have a B46B20 on the shelf for the G01 X3 30i at the moment. Units arrive regularly; send us your VIN and we will tell you when the next one is ready and what it will cost, including delivery.

Will the B48B20TU fit my BMW G20 330i?

Yes, the BMW G20 330i left the factory with the B48B20TU, so a B48B20TU from another car is the direct replacement. The seventh 3 Series was built 2018–, and the B48B20TU was produced 2018–2026, so check that your car's build date falls inside that window. Confirm the drive type (rear-drive or xDrive), the gearbox (manual or automatic) and the emissions standard, because these can change the sump, the flywheel and the software. Send us the VIN and we check all of it for you.

How much is a replacement engine for a BMW G20 330i?

We have 1 B48B20TU engine from G20 donor cars, priced from 4.795,00 €. Delivery to your door is included, and the engine carries a 12-month warranty when fitted by a qualified workshop. Add fitting labour and the parts you replace at the same time — seals, cooling parts and mounts — to estimate the total.

Will the B48B20TU fit my BMW G30 530i?

Yes, the BMW G30 530i left the factory with the B48B20TU, so a B48B20TU from another car is the direct replacement. The seventh 5 Series was built 2016–2023, and the B48B20TU was produced 2018–2026, so check that your car's build date falls inside that window. Confirm the drive type (rear-drive or xDrive), the gearbox (manual or automatic) and the emissions standard, because these can change the sump, the flywheel and the software. Send us the VIN and we check all of it for you.

How much is a replacement engine for a BMW G30 530i?

We have 2 B48B20TU engines in stock, priced from 3.046,00 € to 4.795,00 €. Delivery to your door is included, and the engine carries a 12-month warranty when fitted by a qualified workshop. Add fitting labour and the parts you replace at the same time — seals, cooling parts and mounts — to estimate the total.

Will the B48B20TU fit my BMW G01 X3 30i?

The B48B20TU is the original engine for the BMW G01 X3 30i, which makes it the straightforward choice. The third X3 was built 2017–2024, and the B48B20TU was produced 2018–2026, so check that your car's build date falls inside that window. Confirm the drive type (rear-drive or xDrive), the gearbox (manual or automatic) and the emissions standard, because these can change the sump, the flywheel and the software. Send us the VIN and we check all of it for you.

How much is a replacement engine for a BMW G01 X3 30i?

We have 2 B48B20TU engines in stock, priced from 3.046,00 € to 4.795,00 €. Delivery to your door is included, and the engine carries a 12-month warranty when fitted by a qualified workshop. Add fitting labour and the parts you replace at the same time — seals, cooling parts and mounts — to estimate the total.

Will the B48B20TU fit my BMW G22 430i?

The B48B20TU is the original engine for the BMW G22 430i, which makes it the straightforward choice. The second 4 Series coupé was built 2020–, and the B48B20TU was produced 2018–2026, so check that your car's build date falls inside that window. Confirm the drive type (rear-drive or xDrive), the gearbox (manual or automatic) and the emissions standard, because these can change the sump, the flywheel and the software. Send us the VIN and we check all of it for you.

How much is a replacement engine for a BMW G22 430i?

We have 2 B48B20TU engines in stock, priced from 3.046,00 € to 4.795,00 €. Delivery to your door is included, and the engine carries a 12-month warranty when fitted by a qualified workshop. Add fitting labour and the parts you replace at the same time — seals, cooling parts and mounts — to estimate the total.

Will the B48B20B fit my BMW G20 330i?

Yes, the BMW G20 330i left the factory with the B48B20B, so a B48B20B from another car is the direct replacement. The seventh 3 Series was built 2018–, and the B48B20B was produced 2019–2026, so check that your car's build date falls inside that window. Confirm the drive type (rear-drive or xDrive), the gearbox (manual or automatic) and the emissions standard, because these can change the sump, the flywheel and the software. Send us the VIN and we check all of it for you.

How much is a replacement engine for a BMW G20 330i?

We have 3 B48B20B engines from G20 donor cars, priced from 1.551,00 € to 2.276,00 €. Delivery to your door is included, and the engine carries a 12-month warranty when fitted by a qualified workshop. Add fitting labour and the parts you replace at the same time — seals, cooling parts and mounts — to estimate the total.

Will the B48B20B fit my BMW G30 530i?

Yes, the BMW G30 530i left the factory with the B48B20B, so a B48B20B from another car is the direct replacement. The seventh 5 Series was built 2016–2023, and the B48B20B was produced 2019–2026, so check that your car's build date falls inside that window. Confirm the drive type (rear-drive or xDrive), the gearbox (manual or automatic) and the emissions standard, because these can change the sump, the flywheel and the software. Send us the VIN and we check all of it for you.

How much is a replacement engine for a BMW G30 530i?

We have 3 B48B20B engines from G30 donor cars, priced from 1.842,00 € to 2.807,00 €. Delivery to your door is included, and the engine carries a 12-month warranty when fitted by a qualified workshop. Add fitting labour and the parts you replace at the same time — seals, cooling parts and mounts — to estimate the total.

Will the B48B20B fit my BMW G01 X3 30i?

Yes, the BMW G01 X3 30i left the factory with the B48B20B, so a B48B20B from another car is the direct replacement. The third X3 was built 2017–2024, and the B48B20B was produced 2019–2026, so check that your car's build date falls inside that window. Confirm the drive type (rear-drive or xDrive), the gearbox (manual or automatic) and the emissions standard, because these can change the sump, the flywheel and the software. Send us the VIN and we check all of it for you.

How much is a replacement engine for a BMW G01 X3 30i?

We have 6 B48B20B engines from G01 donor cars, priced from 1.310,00 € to 3.241,00 €. Delivery to your door is included, and the engine carries a 12-month warranty when fitted by a qualified workshop. Add fitting labour and the parts you replace at the same time — seals, cooling parts and mounts — to estimate the total.

B48 and B46 model-year guide

Use this year-by-year guide to see which B48 and B46 versions were in production when your car was built.

2014 — B48A20 and B48B20 were in production. New this year: B48A20 and B48B20.

2015 — B48A20, B48B20 and B46B20 were in production. New this year: B46B20.

2016 — B48A20, B48B20 and B46B20 were in production.

2017 — B48A20, B48B20 and B46B20 were in production.

2018 — B48A20, B48B20, B46B20 and B48B20TU were in production. New this year: B48B20TU.

2019 — B48A20, B48B20, B46B20, B48B20TU and B48B20B were in production. New this year: B48B20B.

2020 — B48A20, B48B20, B46B20, B48B20TU and B48B20B were in production.

2021 — B48A20, B48B20, B46B20, B48B20TU and B48B20B were in production.

2022 — B48A20, B48B20, B46B20, B48B20TU and B48B20B were in production.

2023 — B48A20, B48B20, B46B20, B48B20TU and B48B20B were in production.

2024 — B48A20, B48B20, B46B20, B48B20TU and B48B20B were in production. Last year for B48A20.

2025 — B48B20, B46B20, B48B20TU and B48B20B were in production.

2026 — B48B20, B46B20, B48B20TU and B48B20B were in production. Last year for B48B20, B46B20, B48B20TU and B48B20B.

Common B48 and B46 problems and what to check

No engine is perfect. These are the faults our workshop sees most often on the B48 and B46, what causes them and how to check a used unit before you buy.

Coolant leaks

Thermostat housings and coolant pipes leak.

How to check: Check for coolant loss.

Oil filter housing gasket

Leaks at higher mileage.

How to check: Check the filter housing.

PCV and valve cover

Valve cover seals and PCV parts fail.

How to check: Look for oil on the head.

Water pump

The water pump can leak.

How to check: Check for coolant trails.

Diagnosing a failing B48 and B46: symptoms and causes

If your current engine is showing one of these symptoms, this table helps you judge whether it can be repaired or whether a replacement B48 and B46 is the better route.

Knocking from the bottom of the engine. A deep knock that rises with engine speed usually means worn rod or main bearings. Stop driving: bearing failure ends with a broken connecting rod. A used engine is normally the most economical fix once the bottom end is damaged.

Overheating or losing coolant. Coolant loss without visible leaks points to a head gasket or a cracked head; visible leaks point to the water pump, hoses, thermostat housing or expansion tank. Overheating should be fixed before it warps the head.

White smoke that smells sweet. Coolant burning in the cylinders, from a head gasket, a cracked head or, on diesels, a leaking EGR cooler. Check the coolant level and look for oil in the coolant.

Blue smoke. Oil burning in the cylinders. A puff on start-up points to valve stem seals; constant smoke under load points to piston rings or, on turbo engines, turbo seals.

Rough idle or misfire. Ignition coils, spark plugs, injectors and vacuum leaks are the usual causes. A misfire on one cylinder that moves when you swap coils is a coil; one that stays is a plug, injector or compression problem.

Loss of power. Start with the simple things: air filter, boost leaks on turbo engines, fuel pressure and fault codes. A gradual loss with poor compression on a test points to internal wear.

Rattle for a few seconds after a cold start. The classic sign of a weak timing chain tensioner or stretched chain. It must be checked quickly: a chain that jumps a tooth can bend valves.

Rattle or whine from the gearbox end. On engines with the timing chain at the rear, a rattle or whine from the back of the engine is the warning sign of chain stretch or guide wear.

Whistle, loss of boost or limp mode. A split charge pipe, a sticking wastegate or worn turbo bearings. Check the pipes first, then the turbo shaft for play.

Poor low-down torque and uneven idle. VANOS seals or solenoids. The engine may run well at high revs but feel flat and lumpy at low speed.

Limp mode with a Valvetronic fault. The Valvetronic motor, its eccentric shaft sensor or the wiring. The engine runs on a reduced throttle until it is repaired.

Long cranking before the engine starts. On direct-injection engines, a weak high-pressure fuel pump or leaking injector lets pressure drop when the engine is off.

Repair or replace your B48 and B46?

As a rule, bolt-on faults are worth repairing and internal damage is not. Seals, sensors, coils, injectors, pumps and turbos can be replaced in the car. Once the bearings, crankshaft, bores or head of a B48 and B46 are damaged, a used engine is usually cheaper and quicker than a rebuild.

Timing chain work on the B48 and B46 needs the engine removed. When the chain has failed and damaged valves or pistons, a replacement engine with a sound chain is often the same price as the repair.

Ask your workshop for a written diagnosis before deciding. A compression test, an oil analysis and a borescope inspection take an hour or two and remove most of the guesswork.

B48 and B46 maintenance and running costs

Check front-drive (B48A) or rear-drive (B48B) before ordering.

Shorter oil intervals than the factory maximum are the cheapest insurance for a B48 and B46. Most of the expensive faults on BMW engines start with tired oil.

Let a turbocharged engine idle for thirty seconds after hard driving so the turbo can cool, and warm it up gently before using full boost.

Buying a used B48 and B46: the full checklist

Work through these points before you order a used B48 and B46, whoever you buy from.

1. Confirm the exact engine code. Read the code stamped on the block and compare it with the code for your car. Send us the last seven characters of the VIN and we confirm the match before anything is paid.
2. Ask how the donor car was damaged. Most good used engines come from cars with body damage. A front-end impact can crack sensors, the timing cover or the sump; a rear or side impact usually leaves the engine untouched. The yard records the damage on each unit.
3. Compression or leak-down figures. Even compression across all cylinders tells you more than mileage. Ask for the figures, not just a pass or fail, and compare the highest and lowest readings: a spread above 10 to 15 percent deserves a question.
4. Look at the oil and coolant. Clean oil without metal particles and coolant without oil are good signs. Milky oil, oily coolant or a burnt smell mean the engine needs further checks before it is fitted.
5. Photographs from every side. Good suppliers photograph the actual engine you will receive. Look for the block stamp, the sump, the timing cover and any broken brackets or connectors in the pictures.
6. List of what is fitted. Engines are sold with different ancillaries: some have the turbo, injectors, manifolds, alternator and starter, others are long blocks. Agree the list in writing so you know which parts must come from your old engine.
7. Sump, oil pickup and drive variants. Rear-drive, xDrive and front-drive cars can use different sumps, oil pickups and engine mounts even with the same engine code. Check that the sump matches your subframe and front axle.
8. Gearbox and flywheel match. Manual and automatic engines differ at the flywheel or flexplate, and sometimes at the crankshaft spigot. Make sure the engine you buy matches your gearbox or that you transfer the right parts.
9. Warranty terms in writing. Read what the warranty covers, how long it runs and what fitting conditions apply. Most warranties require a qualified workshop, new fluids and filters, and replacement of the cooling parts that caused the original failure.
10. Why your old engine failed. Before fitting a replacement, find out why the original failed. An overheating radiator, a blocked intercooler or a failed turbo can destroy a second engine if they are not fixed.
11. Turbocharger shaft play and oil. Rotate the compressor wheel by hand. A small amount of side play is normal; in-and-out play or wheel contact with the housing is not. Oil pooled in the intake or intercooler pipes points to worn seals.
12. Timing chain noise. Listen for a rattle at the front of the engine for the first seconds after a cold start. On an engine that cannot be run, look at the chain guides through the oil filler or with the valve cover off.
13. Gearbox-end timing chain. On this engine the timing chain sits at the gearbox end, so replacing it normally means removing the engine. If the chain has not been replaced, the time to do it is before the engine goes into your car.
14. VANOS operation. Rough idle, a rattle from the front of the head and a loss of torque at low revs point to VANOS seals or solenoids. These are serviceable parts and are easier to renew with the engine out.
15. Double VANOS units and solenoids. Ask for the adaptation values or fault history if the engine was running. Solenoids are inexpensive and are often replaced as a matter of course on a used engine.
16. Valvetronic motor and eccentric shaft sensor. The Valvetronic motor and its sensor cause limp-mode faults when they fail. Inspect the connector and the seal around the motor for oil.
17. Injectors and high-pressure fuel pump. Direct-injection engines rely on high-pressure pumps and precise injectors. Ask whether the injectors are original or updated and whether there were fuel pressure faults.

B48 and B46 prices: what you should pay

Our B48 and B46 stock runs to 490 units, priced from 956,00 € to 4.795,00 € with a median of 3.305,00 €.

Prices depend on the exact version, the donor's mileage, how complete the engine is and the demand for that code. Higher-output versions, low mileage and dressed engines with turbo, injectors and ancillaries cost more; long blocks and higher mileage cost less.

B48 and B46 prices by model year

Engines from 2000–2004 have a median of 1.143,00 €, while units from 2020–2024 sit at 3.356,00 €. Newer engines usually cost more because they come from younger donor cars with lower mileage and later updates.

B48 and B46 prices by mileage

Mileage matters less than history on a well-maintained BMW engine, but it is a useful guide. A low-mileage unit from a younger car gives you more life for a modest premium.

B48 and B46 engines in stock now

Here is a selection of B48 and B46 engines currently on our shelves, photographed in the yard. Click any of them for the full photographs, mileage and specification.

BMW G01 X3 xDrive30i B48B20 Engine 2016, 42,100 km3.588,00 €BMW G30 530i B48B20 Engine 2020, 124,000 km2.827,00 €BMW G20 330i B48B20 Engine 2019, 95,800 km2.815,00 €BMW F30 330i B48B20 Engine 2017, 21,700 km3.346,00 €BMW F30 330i B48B20 Engine 2023, 89,400 km2.832,00 €BMW F30 330i B48B20 Engine 2020, 39,400 km3.427,00 €BMW G01 X3 xDrive30i B48B20 Engine 2018, 67,800 km3.965,00 €BMW F40 M135i B48B20 Engine 2021, 19,300 km3.377,00 €BMW F40 M135i B48B20 Engine 2021, 95,000 km3.843,00 €BMW F30 330i B48B20 Engine 2016, 199,600 km2.947,00 €BMW G20 330i B48B20 Engine 2016, 132,700 km3.366,00 €BMW F40 M135i B48B20 Engine 2021, 170,700 km3.286,00 €

BMW G01 X3 xDrive30i B48B20 Engine 2016, 42,100 km — 3.588,00 €, reduced from 4.450,00 €. It comes from a 2016 donor car with 42,100 km, and 24 units are available. The listing shows every side of the engine and the fitted parts.

BMW G30 530i B48B20 Engine 2020, 124,000 km — 2.827,00 €, reduced from 3.400,00 €. It comes from a 2020 donor car with 124,000 km, and 5 units are available. Ask the desk for compression figures or extra photographs before you order.

BMW G20 330i B48B20 Engine 2019, 95,800 km — 2.815,00 €, reduced from 4.100,00 €. It comes from a 2019 donor car with 95,800 km, and 16 units are available. Ask the desk for compression figures or extra photographs before you order.

BMW F30 330i B48B20 Engine 2017, 21,700 km — 3.346,00 €, reduced from 4.250,00 €. It comes from a 2017 donor car with 21,700 km, and 29 units are available. The listing shows every side of the engine and the fitted parts.

BMW F30 330i B48B20 Engine 2023, 89,400 km — 2.832,00 €, reduced from 3.950,00 €. It comes from a 2023 donor car with 89,400 km, and 28 units are available. The listing shows every side of the engine and the fitted parts.

BMW F30 330i B48B20 Engine 2020, 39,400 km — 3.427,00 €, reduced from 4.700,00 €. It comes from a 2020 donor car with 39,400 km, and 24 units are available. We can confirm fitment against your VIN the same day.

BMW G01 X3 xDrive30i B48B20 Engine 2018, 67,800 km — 3.965,00 €, reduced from 4.950,00 €. It comes from a 2018 donor car with 67,800 km, and 11 units are available. The listing shows every side of the engine and the fitted parts.

BMW F40 M135i B48B20 Engine 2021, 19,300 km — 3.377,00 €, reduced from 3.950,00 €. It comes from a 2021 donor car with 19,300 km, and 23 units are available. Ask the desk for compression figures or extra photographs before you order.

BMW F40 M135i B48B20 Engine 2021, 95,000 km — 3.843,00 €, reduced from 4.900,00 €. It comes from a 2021 donor car with 95,000 km, and 7 units are available. The listing shows every side of the engine and the fitted parts.

BMW F30 330i B48B20 Engine 2016, 199,600 km — 2.947,00 €, reduced from 3.900,00 €. It comes from a 2016 donor car with 199,600 km, and 26 units are available. The listing shows every side of the engine and the fitted parts.

BMW G20 330i B48B20 Engine 2016, 132,700 km — 3.366,00 €, reduced from 4.600,00 €. It comes from a 2016 donor car with 132,700 km, and 12 units are available. We can confirm fitment against your VIN the same day.

BMW F40 M135i B48B20 Engine 2021, 170,700 km — 3.286,00 €, reduced from 3.850,00 €. It comes from a 2021 donor car with 170,700 km, and 13 units are available. The listing shows every side of the engine and the fitted parts.

Fitting a replacement B48 and B46

These are the steps we recommend to every workshop fitting one of our B48 and B46 engines.

1. Compare the engines side by side. Put the replacement next to the old engine and compare sensors, brackets, connectors, the sump, the starter and the flywheel or flexplate. Note anything that must be transferred.
2. Transfer the parts that differ. Move the parts that are specific to your car, such as the engine harness on some models, the sump on xDrive cars or the air conditioning compressor bracket. Use new seals and gaskets for everything you move.
3. Replace the rear main seal and drive parts. With the engine out, the rear crankshaft seal is easy to reach. Fit a new one, inspect the flywheel and clutch on manual cars or the converter seal on automatics.
4. Renew the cooling system. Most engine failures start with cooling. Fit a new water pump, thermostat and hoses, check the radiator and fan, and use the correct coolant.
5. Fit new engine mounts. Old mounts transfer vibration and can let the engine move enough to damage hoses. They are cheap and easy to replace with the engine out.
6. Inspect or replace the timing chain parts. Look at the guides and tensioner. On high-mileage engines, replacing them now costs far less than doing it later.
7. Replace the rear timing chain if in doubt. On engines with the chain at the gearbox end, chain work needs the engine out. If the history is unknown, replace the chain, guides and tensioner before fitting.
8. Prepare the turbo. Fit new oil feed and return seals, clean the intercooler and pipes of any oil or debris from the old engine, and prime the turbo with oil before starting.
9. Clean the intake. If the old engine failed internally, debris can be in the intake or intercooler. Clean them so nothing reaches the new engine.
10. Fill with the right oil and prime it. Fill with new oil of the correct specification and a new filter. Crank with the fuel and ignition disabled until oil pressure builds.
11. Coding and adaptations. On modern BMWs, the engine ECU must be matched to the car's immobiliser (CAS, FEM or BDC). Reset adaptations, register the battery and clear faults with diagnostic software.
12. Reset VANOS adaptations. Clear the VANOS adaptations so the ECU learns the camshaft positions of the new engine.
13. Teach the Valvetronic limit stops. Run the Valvetronic learning routine so the ECU knows the eccentric shaft limits.
14. First start and leak check. Start the engine, let it idle and watch oil pressure, temperature and fault codes. Check for leaks and bleed the cooling system.
15. First 1,000 km. Drive gently for the first few hundred kilometres, vary the engine speed and avoid full load. Change the oil and filter after about 1,000 km to remove any assembly debris.

Tuning and upgrades

Remaps add 40 to 60 hp easily.

Whatever you plan, start with a healthy engine: a compression test, fresh fluids and the known weak parts replaced. Power upgrades amplify any existing problem.

B48 and B46 compared with similar BMW engines

Buyers often compare the B48 and B46 with these engines. Here is how they line up.

The N20 and N26 is milder (up to 245 hp against 258 hp) and uses timing chain at the rear (gearbox end). Its best-known faults are timing chain guide and oil pump drive chain. Read the N20 and N26 guide.

The M42 and M44 is milder (up to 140 hp against 258 hp) and uses timing chain at the front with guides and a hydraulic tensioner. Its best-known faults are head gasket and timing chain guides and tensioner. Read the M42 and M44 guide.

The N42 and N46 is milder (up to 173 hp against 258 hp) and uses timing chain at the front with balance shafts. Its best-known faults are oil consumption and timing chain stretch. Read the N42 and N46 guide.

Delivery, warranty and payment

Before a B48 and B46 engine leaves our Hamburg yard it is drained of oil and coolant, every opening is sealed, and it is strapped to a pallet and wrapped. We send photographs of the packed unit and the tracking details.

Door-to-door delivery is included to the address you give at checkout. Typical delivery takes three to five working days within Germany and neighbouring countries and five to ten working days to the rest of Europe and the UK.

Every engine carries a 12-month warranty on eligible internal failure when a qualified workshop fits it with new fluids and filters. Payment is by card, bank transfer or crypto; your invoice is emailed as soon as you order.

We deliver B48 and B46 engines from Hamburg to customers across Europe and beyond. Typical door-to-door times and customs status:

Times are typical for pallet delivery after dispatch and can vary with holidays and remote addresses. Business buyers in the EU with a valid VAT number can order without German VAT.

Questions buyers ask about the B48 and B46

Will the B48B20 engine fit my BMW G20 330i?

Yes, if your BMW G20 330i was built with the B48B20. BMW used this 2.0 liter (1,998 cc) petrol engine with 190 kW (258 HP) in the G20 330i from about 2015 to 2025.

In our records the B48B20 is the engine for the G20 330i, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Also tell us if your G20 has a manual or an automatic gearbox. The flywheel or the flex plate and some sensors depend on it.

Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B48 Engines · Search B48B20 in the shop

How much is a replacement B48B20 engine for a BMW G20 330i?

A used B48B20 for the BMW G20 330i costs from about 2.650 € to 4.200 € in our yard. The price depends on the year, the mileage and the parts that come with the engine.

Shipping is a flat 249 € per order. It is added once at checkout and printed on the invoice, so there is no extra fee later. Inside the EU there is no import duty. Outside the EU, the receiver pays local duty and VAT.

A replacement engine is often much cheaper than rebuilding a damaged one, and much faster. The B48B20 you buy is photographed and checked in Hamburg before it is listed.

Eligible engines come with a 12 months warranty from the delivery date. It covers internal mechanical failure under normal use and correct fitting by a qualified mechanic or workshop. Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B48 Engines · Search B48B20 in the shop

Will the B48B20 engine fit my BMW G21 330i?

Yes, if your BMW G21 330i was built with the B48B20. BMW used this 2.0 liter (1,998 cc) petrol engine with 190 kW (258 HP) in the G21 330i from about 2015 to 2025.

In our records the B48B20 is the engine for the G21 330i, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Also tell us if your G21 has a manual or an automatic gearbox. The flywheel or the flex plate and some sensors depend on it.

Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B48 Engines · Search B48B20 in the shop

How much is a replacement B48B20 engine for a BMW G21 330i?

A used B48B20 for the BMW G21 330i costs from about 2.650 € to 4.200 € in our yard. The price depends on the year, the mileage and the parts that come with the engine.

Shipping is a flat 249 € per order. It is added once at checkout and printed on the invoice, so there is no extra fee later. Inside the EU there is no import duty. Outside the EU, the receiver pays local duty and VAT.

A replacement engine is often much cheaper than rebuilding a damaged one, and much faster. The B48B20 you buy is photographed and checked in Hamburg before it is listed.

Eligible engines come with a 12 months warranty from the delivery date. It covers internal mechanical failure under normal use and correct fitting by a qualified mechanic or workshop. Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B48 Engines · Search B48B20 in the shop

Will the B48B20 engine fit my BMW G30 530i?

Yes, if your BMW G30 530i was built with the B48B20. BMW used this 2.0 liter (1,998 cc) petrol engine with 190 kW (258 HP) in the G30 530i from about 2015 to 2025.

In our records the B48B20 is the engine for the G30 530i, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Also tell us if your G30 has a manual or an automatic gearbox. The flywheel or the flex plate and some sensors depend on it.

Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B48 Engines · Search B48B20 in the shop

How much is a replacement B48B20 engine for a BMW G30 530i?

A used B48B20 for the BMW G30 530i costs from about 2.650 € to 4.200 € in our yard. The price depends on the year, the mileage and the parts that come with the engine.

Shipping is a flat 249 € per order. It is added once at checkout and printed on the invoice, so there is no extra fee later. Inside the EU there is no import duty. Outside the EU, the receiver pays local duty and VAT.

A replacement engine is often much cheaper than rebuilding a damaged one, and much faster. The B48B20 you buy is photographed and checked in Hamburg before it is listed.

Eligible engines come with a 12 months warranty from the delivery date. It covers internal mechanical failure under normal use and correct fitting by a qualified mechanic or workshop. Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B48 Engines · Search B48B20 in the shop

Will the B48B20 engine fit my BMW G01 X3 xDrive30i?

Yes, if your BMW G01 X3 xDrive30i was built with the B48B20. BMW used this 2.0 liter (1,998 cc) petrol engine with 190 kW (258 HP) in the G01 X3 xDrive30i from about 2015 to 2025.

In our records the B48B20 is the engine for the G01 X3 xDrive30i, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Your car has all-wheel drive or is an X model, so the sump, the oil pickup and some brackets can differ from the rear-drive cars. Tell us the full model so we send the right set-up.

Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B48 Engines · Search B48B20 in the shop

How much is a replacement B48B20 engine for a BMW G01 X3 xDrive30i?

A used B48B20 for the BMW G01 X3 xDrive30i costs from about 2.650 € to 4.200 € in our yard. The price depends on the year, the mileage and the parts that come with the engine.

Shipping is a flat 249 € per order. It is added once at checkout and printed on the invoice, so there is no extra fee later. Inside the EU there is no import duty. Outside the EU, the receiver pays local duty and VAT.

A replacement engine is often much cheaper than rebuilding a damaged one, and much faster. The B48B20 you buy is photographed and checked in Hamburg before it is listed.

Eligible engines come with a 12 months warranty from the delivery date. It covers internal mechanical failure under normal use and correct fitting by a qualified mechanic or workshop. Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B48 Engines · Search B48B20 in the shop

Will the B48B20 engine fit my BMW F30 330i?

Yes, if your BMW F30 330i was built with the B48B20. BMW used this 2.0 liter (1,998 cc) petrol engine with 190 kW (258 HP) in the F30 330i from about 2015 to 2025.

In our records the B48B20 is the engine for the F30 330i, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Also tell us if your F30 has a manual or an automatic gearbox. The flywheel or the flex plate and some sensors depend on it.

Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B48 Engines · Search B48B20 in the shop

How much is a replacement B48B20 engine for a BMW F30 330i?

A used B48B20 for the BMW F30 330i costs from about 2.650 € to 4.200 € in our yard. The price depends on the year, the mileage and the parts that come with the engine.

Shipping is a flat 249 € per order. It is added once at checkout and printed on the invoice, so there is no extra fee later. Inside the EU there is no import duty. Outside the EU, the receiver pays local duty and VAT.

A replacement engine is often much cheaper than rebuilding a damaged one, and much faster. The B48B20 you buy is photographed and checked in Hamburg before it is listed.

Eligible engines come with a 12 months warranty from the delivery date. It covers internal mechanical failure under normal use and correct fitting by a qualified mechanic or workshop. Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B48 Engines · Search B48B20 in the shop

Will the B48B20 engine fit my BMW F40 128ti?

Yes, if your BMW F40 128ti was built with the B48B20. BMW used this 2.0 liter (1,998 cc) petrol engine with 190 kW (258 HP) in the F40 128ti from about 2015 to 2025.

In our records the B48B20 is the engine for the F40 128ti, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Also tell us if your F40 has a manual or an automatic gearbox. The flywheel or the flex plate and some sensors depend on it.

Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B48 Engines · Search B48B20 in the shop

How much is a replacement B48B20 engine for a BMW F40 128ti?

A used B48B20 for the BMW F40 128ti costs from about 2.650 € to 4.200 € in our yard. The price depends on the year, the mileage and the parts that come with the engine.

Shipping is a flat 249 € per order. It is added once at checkout and printed on the invoice, so there is no extra fee later. Inside the EU there is no import duty. Outside the EU, the receiver pays local duty and VAT.

A replacement engine is often much cheaper than rebuilding a damaged one, and much faster. The B48B20 you buy is photographed and checked in Hamburg before it is listed.

Eligible engines come with a 12 months warranty from the delivery date. It covers internal mechanical failure under normal use and correct fitting by a qualified mechanic or workshop. Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B48 Engines · Search B48B20 in the shop

Will the B48B20 engine fit my BMW G22 430i?

Yes, if your BMW G22 430i was built with the B48B20. BMW used this 2.0 liter (1,998 cc) petrol engine with 190 kW (258 HP) in the G22 430i from about 2015 to 2025.

In our records the B48B20 is the engine for the G22 430i, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Also tell us if your G22 has a manual or an automatic gearbox. The flywheel or the flex plate and some sensors depend on it.

Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B48 Engines · Search B48B20 in the shop

How much is a replacement B48B20 engine for a BMW G22 430i?

A used B48B20 for the BMW G22 430i costs from about 2.650 € to 4.200 € in our yard. The price depends on the year, the mileage and the parts that come with the engine.

Shipping is a flat 249 € per order. It is added once at checkout and printed on the invoice, so there is no extra fee later. Inside the EU there is no import duty. Outside the EU, the receiver pays local duty and VAT.

A replacement engine is often much cheaper than rebuilding a damaged one, and much faster. The B48B20 you buy is photographed and checked in Hamburg before it is listed.

Eligible engines come with a 12 months warranty from the delivery date. It covers internal mechanical failure under normal use and correct fitting by a qualified mechanic or workshop. Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B48 Engines · Search B48B20 in the shop

Will the B46B20 engine fit my BMW F48 X1 xDrive25i?

Yes, if your BMW F48 X1 xDrive25i was built with the B46B20. BMW used this 2.0 liter (1,998 cc) petrol engine with 170 kW (231 HP) in the F48 X1 xDrive25i from about 2015 to 2023.

In our records the B46B20 is the engine for the F48 X1 xDrive25i, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Your car has all-wheel drive or is an X model, so the sump, the oil pickup and some brackets can differ from the rear-drive cars. Tell us the full model so we send the right set-up.

Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B46 Engines · Search B46B20 in the shop

How much is a replacement B46B20 engine for a BMW F48 X1 xDrive25i?

A used B46B20 for the BMW F48 X1 xDrive25i costs from about 2.150 € to 3.450 € in our yard. The price depends on the year, the mileage and the parts that come with the engine.

Shipping is a flat 249 € per order. It is added once at checkout and printed on the invoice, so there is no extra fee later. Inside the EU there is no import duty. Outside the EU, the receiver pays local duty and VAT.

A replacement engine is often much cheaper than rebuilding a damaged one, and much faster. The B46B20 you buy is photographed and checked in Hamburg before it is listed.

Eligible engines come with a 12 months warranty from the delivery date. It covers internal mechanical failure under normal use and correct fitting by a qualified mechanic or workshop. Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B46 Engines · Search B46B20 in the shop

Will the B46B20 engine fit my BMW F39 X2 xDrive25i?

Yes, if your BMW F39 X2 xDrive25i was built with the B46B20. BMW used this 2.0 liter (1,998 cc) petrol engine with 170 kW (231 HP) in the F39 X2 xDrive25i from about 2015 to 2023.

In our records the B46B20 is the engine for the F39 X2 xDrive25i, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Your car has all-wheel drive or is an X model, so the sump, the oil pickup and some brackets can differ from the rear-drive cars. Tell us the full model so we send the right set-up.

Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B46 Engines · Search B46B20 in the shop

How much is a replacement B46B20 engine for a BMW F39 X2 xDrive25i?

A used B46B20 for the BMW F39 X2 xDrive25i costs from about 2.150 € to 3.450 € in our yard. The price depends on the year, the mileage and the parts that come with the engine.

Shipping is a flat 249 € per order. It is added once at checkout and printed on the invoice, so there is no extra fee later. Inside the EU there is no import duty. Outside the EU, the receiver pays local duty and VAT.

A replacement engine is often much cheaper than rebuilding a damaged one, and much faster. The B46B20 you buy is photographed and checked in Hamburg before it is listed.

Eligible engines come with a 12 months warranty from the delivery date. It covers internal mechanical failure under normal use and correct fitting by a qualified mechanic or workshop. Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B46 Engines · Search B46B20 in the shop

Will the B46B20 engine fit my BMW F45 225i?

Yes, if your BMW F45 225i was built with the B46B20. BMW used this 2.0 liter (1,998 cc) petrol engine with 170 kW (231 HP) in the F45 225i from about 2015 to 2023.

In our records the B46B20 is the engine for the F45 225i, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Also tell us if your F45 has a manual or an automatic gearbox. The flywheel or the flex plate and some sensors depend on it.

Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B46 Engines · Search B46B20 in the shop

How much is a replacement B46B20 engine for a BMW F45 225i?

A used B46B20 for the BMW F45 225i costs from about 2.150 € to 3.450 € in our yard. The price depends on the year, the mileage and the parts that come with the engine.

Shipping is a flat 249 € per order. It is added once at checkout and printed on the invoice, so there is no extra fee later. Inside the EU there is no import duty. Outside the EU, the receiver pays local duty and VAT.

A replacement engine is often much cheaper than rebuilding a damaged one, and much faster. The B46B20 you buy is photographed and checked in Hamburg before it is listed.

Eligible engines come with a 12 months warranty from the delivery date. It covers internal mechanical failure under normal use and correct fitting by a qualified mechanic or workshop. Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B46 Engines · Search B46B20 in the shop

Will the B46B20 engine fit my BMW U11 X1 xDrive23i?

Yes, if your BMW U11 X1 xDrive23i was built with the B46B20. BMW used this 2.0 liter (1,998 cc) petrol engine with 170 kW (231 HP) in the U11 X1 xDrive23i from about 2015 to 2023.

In our records the B46B20 is the engine for the U11 X1 xDrive23i, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Your car has all-wheel drive or is an X model, so the sump, the oil pickup and some brackets can differ from the rear-drive cars. Tell us the full model so we send the right set-up.

Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B46 Engines · Search B46B20 in the shop

How much is a replacement B46B20 engine for a BMW U11 X1 xDrive23i?

A used B46B20 for the BMW U11 X1 xDrive23i costs from about 2.150 € to 3.450 € in our yard. The price depends on the year, the mileage and the parts that come with the engine.

Shipping is a flat 249 € per order. It is added once at checkout and printed on the invoice, so there is no extra fee later. Inside the EU there is no import duty. Outside the EU, the receiver pays local duty and VAT.

A replacement engine is often much cheaper than rebuilding a damaged one, and much faster. The B46B20 you buy is photographed and checked in Hamburg before it is listed.

Eligible engines come with a 12 months warranty from the delivery date. It covers internal mechanical failure under normal use and correct fitting by a qualified mechanic or workshop. Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B46 Engines · Search B46B20 in the shop

What is the BMW B48B20 engine?

The BMW B48B20 is a 2.0 liter (1,998 cc) petrol engine from the B48 family. It has an inline 4, DOHC, 16 valve layout with a twin-scroll turbocharger, and makes 190 kW (258 HP) with 400 Nm of torque. BMW built it from 2015 to 2025 and it meets the Euro 6 emission standard.

You find the B48B20 in the BMW G20 330i, BMW G21 330i, BMW G30 530i, BMW G01 X3 xDrive30i, BMW F30 330i, BMW F40 128ti and BMW G22 430i. What we list: BMW B48 2.0 turbo petrol engines for 330i, 530i, X3 and 1 Series.

At Autowerke Engines every B48B20 is a real used engine from our yard in Hamburg. The photos on each listing show the actual engine, not a stock picture. The yard checks the code, records what is bolted on, and seals the openings before the engine is offered. Each listing shows the year, the mileage and the price, so you can compare units side by side.

Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B48 Engines · Search B48B20 in the shop

How much does a used BMW B48B20 engine cost?

A used BMW B48B20 engine in our yard usually costs between 2.650 € and 4.200 €. The exact price depends on the year, the mileage and the parts that come with the engine.

Our units show recorded mileage from about 22,000 km up to around 200,000 km. Lower mileage and more ancillaries mean a higher price. Each listing shows its own price, and the price you see is the price you pay. Prices include VAT for private buyers.

Shipping is a flat 249 € per order. It is added once at checkout and printed on the invoice, so there is no extra fee later. If you order a gearbox or a second engine on the same order, the fee is still charged once.

Inside the EU there is no import duty. For the UK and other non-EU countries, import duty and local VAT are paid by the receiver, and we supply a commercial invoice.

See all B48 Engines · Search B48B20 in the shop

Which cars use the BMW B48B20 engine?

BMW fitted the B48B20 to the BMW G20 330i, BMW G21 330i, BMW G30 530i, BMW G01 X3 xDrive30i, BMW F30 330i, BMW F40 128ti and BMW G22 430i. These cars were built with this engine from about 2015 to 2025.

The badge on the boot is not enough to be sure. The same model name can hide two different engines, for example after a facelift or a change in emission rules. Always read the engine code stamped on the block, or look it up with your VIN.

The B48B20 is the only B48 version we list, which makes it easy to pick, but the wiring and the engine computer still need to match your car.

Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B48 Engines · Search B48B20 in the shop

How much power and torque does the BMW B48B20 have?

From the factory the BMW B48B20 makes 190 kW (258 HP) and 400 Nm of torque. It is a 2.0 liter (1,998 cc) inline 4, DOHC, 16 valve petrol engine with a twin-scroll turbocharger.

Because it is turbocharged, the torque comes in low in the rev range, which makes the car feel strong in everyday driving. A healthy turbo, a clean intercooler and tight boost pipes are key to getting the full figure.

A used engine reaches its factory numbers when it is fitted with the matching engine computer and software, and serviced with the right oil and filters. If the engine computer from your car is a different version, a specialist may need to code it.

Every B48B20 on our site lists its year and mileage. Ask the desk for more pictures of any listing. We are happy to show the stamp, the ports and the ancillaries before you decide.

See all B48 Engines · Search B48B20 in the shop

How do I know a used B48B20 engine is in good shape?

Each engine in the yard is inspected in Hamburg. The code is matched to the listing, the parts on the engine are recorded, the openings are sealed and the real unit is photographed. An inspection certificate for the unit can travel with the order when you ask for it.

When you look at a listing, check the recorded mileage, the year and the photos of the ports and the stamp. Ask for photos of anything you want to see closer. Ask the desk for more pictures of any listing. We are happy to show the stamp, the ports and the ancillaries before you decide.

On a petrol engine like the B48B20, a careful fitter will also look at the spark plugs, the coils and the timing side before the engine goes in.

If the engine fails inside under normal use, the warranty covers you. Eligible engines come with a 12 months warranty from the delivery date. It covers internal mechanical failure under normal use and correct fitting by a qualified mechanic or workshop.

See all B48 Engines · Search B48B20 in the shop

What comes with a used B48B20 engine?

Each B48B20 is sold as described on its own listing. The yard writes down the parts that are fitted to that unit, such as the turbo, the injectors, the manifolds or the alternator, so you know what arrives.

Some units are long engines with few ancillaries, others are more complete. If you need a part that is not listed, ask the desk. We often have the matching items in the yard.

Every engine is drained, sealed at each opening, strapped to a heat-treated pallet and shrink-wrapped, then photographed before it leaves the yard.

On delivery, the carrier brings the pallet to the kerb or a loading bay. Please have a forklift, a pallet truck or an engine crane ready.

See all B48 Engines · Search B48B20 in the shop

Is the BMW B48B20 a diesel or petrol engine?

The B48B20 is a petrol engine. It is a 2.0 liter (1,998 cc) inline 4, DOHC, 16 valve unit with a twin-scroll turbocharger, and it was built to the Euro 6 emission standard.

The emission standard matters for registration and for low-emission zones in many cities. When you replace an engine with the same code, the car keeps the same paperwork and the same emission class.

Petrol versions need the correct catalytic converters and oxygen sensors on the car to stay legal and to keep the engine computer happy. Reuse the parts from your car if they are in good condition.

If you are not sure which version you need, send us your VIN. We tell you the right code for free.

See all B48 Engines · Search B48B20 in the shop

Are there other versions of the BMW B48B20?

In our yard the B48B20 is the only listed version of the B48 family. It makes 190 kW (258 HP) and 400 Nm, and was built from 2015 to 2025.

Engines in one family share a basic block, but the turbo, the injection, the sensors and the engine computer can differ. A higher power version often has different pistons, a bigger turbo or a different fuel system.

This is why we ask for the exact code. Fitting a different version can work, but the wiring, the software and sometimes the gearbox must be changed to match.

Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B48 Engines · Search B48B20 in the shop

How long does delivery of a B48B20 engine take?

Orders confirmed before 14:00 CET on a working day leave Hamburg the same day. Later and weekend orders leave the next working day. Delivery to the Netherlands, Belgium, Germany, France, Luxembourg and Denmark takes 1 to 3 working days.

Spain, Italy, Portugal, Poland, Czechia, Austria, Ireland, the Nordics and the Baltics take 2 to 5 working days. Greek and Spanish islands, Malta, Cyprus and remote areas take 4 to 8 working days. The UK and other countries outside the EU are quoted one by one.

Shipping is a flat 249 € per order. It is added once at checkout and printed on the invoice, so there is no extra fee later. Every engine is drained, sealed at each opening, strapped to a heat-treated pallet and shrink-wrapped, then photographed before it leaves the yard.

You get a tracking number when the pallet is collected. Check the wrapping before you sign, and note any damage on the paperwork.

See all B48 Engines · Search B48B20 in the shop

What should I replace when I fit a used B48B20 engine?

A used engine lasts longest when it starts life in your car with fresh fluids and new seals. Fit a new oil filter and fresh oil of the grade BMW lists for this engine, and refill the coolant with the correct BMW antifreeze mix. Change the drive belt, the thermostat and the water pump seals if they look tired, because they are cheap while the engine is out. Use new gaskets for the exhaust manifold, the intake and the sump plug, and check every hose clip before the first start.

Look at the engine mounts and the clutch or the torque converter while the engine is out. Old mounts can crack a new engine's brackets, and a worn clutch is much easier to change now.

Before the first start, turn the engine over without fuel until the oil pressure light goes out. Then let it idle, check for leaks, and drive gently for the first few hundred kilometres.

The warranty asks for fitting by a qualified mechanic and the correct oil, coolant and filters. Keep your receipts in case you ever need to make a claim.

See all B48 Engines · Search B48B20 in the shop

Does a used B48B20 engine come with a warranty?

Yes. Eligible engines come with a 12 months warranty from the delivery date. It covers internal mechanical failure under normal use and correct fitting by a qualified mechanic or workshop.

The warranty does not cover damage from wrong fitting, overheating, low oil, wrong fluids or fuel, engines that were opened or modified without our approval, or labour and towing costs.

To claim, send us your order number, a short description of the problem, photos or a video, and a mechanic's report if we ask for one. If the claim is approved, we repair, replace or refund the engine.

Keep the receipts for the fitting, the oil and the filters. They make any claim quick and simple.

See all B48 Engines · Search B48B20 in the shop

Can you check if a B48B20 fits my car with my VIN?

Yes, and it is free. Send the 17-character VIN of your car and, if you have it, the gearbox code. We check the engine family, the build year window and the parts your car needs.

For the B48B20, we confirm that your car was built with this code or with a version that can take it. BMW used it in the BMW G20 330i, BMW G21 330i, BMW G30 530i, BMW G01 X3 xDrive30i and BMW F30 330i and more.

We only reserve an engine once the match is confirmed, so you never pay for the wrong unit. You can reach the Hamburg desk by email at autowerkeengines@gmail.com, or by phone and WhatsApp on +49 15510 030835, Monday to Friday, 9:00 to 16:00 CET.

You can also use the VIN check on our site. It reads the year, the make, the model and the engine from the public vehicle register.

See all B48 Engines · Search B48B20 in the shop

What should I know about the BMW B48 engine?

BMW B48 2.0 turbo petrol engines for 330i, 530i, X3 and 1 Series. We list one version: B48B20 (2.0 liter (1,998 cc), 190 kW (258 HP), 2015 to 2025).

Because there is only one version, the code is easy to match. You still need the engine computer and wiring that suit your car.

The B48 family was used in chassis G20, G21, G30, G01, F30, F40 and G22. Each engine in the yard is inspected in Hamburg. The code is matched to the listing, the parts on the engine are recorded, the openings are sealed and the real unit is photographed.

Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B48 Engines

What should I check on a used BMW B48 engine?

Start with the basics: the engine code on the block, the recorded mileage and the photos. Make sure the code matches your car and the parts you need are on the unit.

On a B48 petrol engine, a fitter usually checks the spark plugs, the coils, the timing side and the oil seals. These parts are easy to check before fitting and easy to change if needed.

You can ask for extra photos, a close-up of the code stamp or a short video before you order. An inspection certificate can travel with the order on request.

Once fitted, change the oil and filter early and drive gently at first. Report any problem right away so the warranty stays valid.

See all B48 Engines · Inspection certificate

Which years were BMW B48 engines made?

BMW built the B48 engines we list from about 2015 to 2025. The B48B20 ran from 2015 to 2025.

They went into chassis G20, G21, G30, G01, F30, F40 and G22. The exact year of a car matters, because BMW sometimes changed the engine version or its parts in the middle of a model's life.

Each listing in our yard names the engine year, so you can match it to the build date of your car.

Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B48 Engines

What is the BMW B46B20 engine?

The BMW B46B20 is a 2.0 liter (1,998 cc) petrol engine from the B46 family. It has an inline 4, DOHC, 16 valve layout with a twin-scroll turbocharger, and makes 170 kW (231 HP) with 350 Nm of torque. BMW built it from 2015 to 2023 and it meets the Euro 6 emission standard.

You find the B46B20 in the BMW F48 X1 xDrive25i, BMW F39 X2 xDrive25i, BMW F45 225i and BMW U11 X1 xDrive23i. What we list: BMW B46 transverse 2.0 turbo petrol engines for X1, X2 and 2 Series Active Tourer.

At Autowerke Engines every B46B20 is a real used engine from our yard in Hamburg. Each engine in the yard is inspected in Hamburg. The code is matched to the listing, the parts on the engine are recorded, the openings are sealed and the real unit is photographed. Each listing shows the year, the mileage and the price, so you can compare units side by side.

Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B46 Engines · Search B46B20 in the shop

How much does a used BMW B46B20 engine cost?

A used BMW B46B20 engine in our yard usually costs between 2.150 € and 3.450 €. The exact price depends on the year, the mileage and the parts that come with the engine.

Our units show recorded mileage from about 22,000 km up to around 200,000 km. Lower mileage and more ancillaries mean a higher price. Each listing shows its own price, and the price you see is the price you pay. Prices include VAT for private buyers.

Shipping is a flat 249 € per order. It is added once at checkout and printed on the invoice, so there is no extra fee later. If you order a gearbox or a second engine on the same order, the fee is still charged once.

Inside the EU there is no import duty. For the UK and other non-EU countries, import duty and local VAT are paid by the receiver, and we supply a commercial invoice.

See all B46 Engines · Search B46B20 in the shop

Which cars use the BMW B46B20 engine?

BMW fitted the B46B20 to the BMW F48 X1 xDrive25i, BMW F39 X2 xDrive25i, BMW F45 225i and BMW U11 X1 xDrive23i. These cars were built with this engine from about 2015 to 2023.

The badge on the boot is not enough to be sure. The same model name can hide two different engines, for example after a facelift or a change in emission rules. Always read the engine code stamped on the block, or look it up with your VIN.

The B46B20 is the only B46 version we list, which makes it easy to pick, but the wiring and the engine computer still need to match your car.

Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B46 Engines · Search B46B20 in the shop

How much power and torque does the BMW B46B20 have?

From the factory the BMW B46B20 makes 170 kW (231 HP) and 350 Nm of torque. It is a 2.0 liter (1,998 cc) inline 4, DOHC, 16 valve petrol engine with a twin-scroll turbocharger.

Because it is turbocharged, the torque comes in low in the rev range, which makes the car feel strong in everyday driving. A healthy turbo, a clean intercooler and tight boost pipes are key to getting the full figure.

A used engine reaches its factory numbers when it is fitted with the matching engine computer and software, and serviced with the right oil and filters. If the engine computer from your car is a different version, a specialist may need to code it.

Every B46B20 on our site lists its year and mileage. You can ask for extra photos, a close-up of the code stamp or a short video before you order.

See all B46 Engines · Search B46B20 in the shop

How do I know a used B46B20 engine is in good shape?

The photos on each listing show the actual engine, not a stock picture. The yard checks the code, records what is bolted on, and seals the openings before the engine is offered. An inspection certificate for the unit can travel with the order when you ask for it.

When you look at a listing, check the recorded mileage, the year and the photos of the ports and the stamp. Ask for photos of anything you want to see closer. You can ask for extra photos, a close-up of the code stamp or a short video before you order.

On a petrol engine like the B46B20, a careful fitter will also look at the spark plugs, the coils and the timing side before the engine goes in.

If the engine fails inside under normal use, the warranty covers you. Eligible engines come with a 12 months warranty from the delivery date. It covers internal mechanical failure under normal use and correct fitting by a qualified mechanic or workshop.

See all B46 Engines · Search B46B20 in the shop

What comes with a used B46B20 engine?

Each B46B20 is sold as described on its own listing. The yard writes down the parts that are fitted to that unit, such as the turbo, the injectors, the manifolds or the alternator, so you know what arrives.

Some units are long engines with few ancillaries, others are more complete. If you need a part that is not listed, ask the desk. We often have the matching items in the yard.

Every engine is drained, sealed at each opening, strapped to a heat-treated pallet and shrink-wrapped, then photographed before it leaves the yard.

On delivery, the carrier brings the pallet to the kerb or a loading bay. Please have a forklift, a pallet truck or an engine crane ready.

See all B46 Engines · Search B46B20 in the shop

Is the BMW B46B20 a diesel or petrol engine?

The B46B20 is a petrol engine. It is a 2.0 liter (1,998 cc) inline 4, DOHC, 16 valve unit with a twin-scroll turbocharger, and it was built to the Euro 6 emission standard.

The emission standard matters for registration and for low-emission zones in many cities. When you replace an engine with the same code, the car keeps the same paperwork and the same emission class.

Petrol versions need the correct catalytic converters and oxygen sensors on the car to stay legal and to keep the engine computer happy. Reuse the parts from your car if they are in good condition.

If you are not sure which version you need, send us your VIN. We tell you the right code for free.

See all B46 Engines · Search B46B20 in the shop

Are there other versions of the BMW B46B20?

In our yard the B46B20 is the only listed version of the B46 family. It makes 170 kW (231 HP) and 350 Nm, and was built from 2015 to 2023.

Engines in one family share a basic block, but the turbo, the injection, the sensors and the engine computer can differ. A higher power version often has different pistons, a bigger turbo or a different fuel system.

This is why we ask for the exact code. Fitting a different version can work, but the wiring, the software and sometimes the gearbox must be changed to match.

Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B46 Engines · Search B46B20 in the shop

How long does delivery of a B46B20 engine take?

Orders confirmed before 14:00 CET on a working day leave Hamburg the same day. Later and weekend orders leave the next working day. Delivery to the Netherlands, Belgium, Germany, France, Luxembourg and Denmark takes 1 to 3 working days.

Spain, Italy, Portugal, Poland, Czechia, Austria, Ireland, the Nordics and the Baltics take 2 to 5 working days. Greek and Spanish islands, Malta, Cyprus and remote areas take 4 to 8 working days. The UK and other countries outside the EU are quoted one by one.

Shipping is a flat 249 € per order. It is added once at checkout and printed on the invoice, so there is no extra fee later. Every engine is drained, sealed at each opening, strapped to a heat-treated pallet and shrink-wrapped, then photographed before it leaves the yard.

You get a tracking number when the pallet is collected. Check the wrapping before you sign, and note any damage on the paperwork.

See all B46 Engines · Search B46B20 in the shop

What should I replace when I fit a used B46B20 engine?

A used engine lasts longest when it starts life in your car with fresh fluids and new seals. Fit a new oil filter and fresh oil of the grade BMW lists for this engine, and refill the coolant with the correct BMW antifreeze mix. Change the drive belt, the thermostat and the water pump seals if they look tired, because they are cheap while the engine is out. Use new gaskets for the exhaust manifold, the intake and the sump plug, and check every hose clip before the first start.

Look at the engine mounts and the clutch or the torque converter while the engine is out. Old mounts can crack a new engine's brackets, and a worn clutch is much easier to change now.

Before the first start, turn the engine over without fuel until the oil pressure light goes out. Then let it idle, check for leaks, and drive gently for the first few hundred kilometres.

The warranty asks for fitting by a qualified mechanic and the correct oil, coolant and filters. Keep your receipts in case you ever need to make a claim.

See all B46 Engines · Search B46B20 in the shop

Does a used B46B20 engine come with a warranty?

Yes. Eligible engines come with a 12 months warranty from the delivery date. It covers internal mechanical failure under normal use and correct fitting by a qualified mechanic or workshop.

The warranty does not cover damage from wrong fitting, overheating, low oil, wrong fluids or fuel, engines that were opened or modified without our approval, or labour and towing costs.

To claim, send us your order number, a short description of the problem, photos or a video, and a mechanic's report if we ask for one. If the claim is approved, we repair, replace or refund the engine.

Keep the receipts for the fitting, the oil and the filters. They make any claim quick and simple.

See all B46 Engines · Search B46B20 in the shop

Can you check if a B46B20 fits my car with my VIN?

Yes, and it is free. Send the 17-character VIN of your car and, if you have it, the gearbox code. We check the engine family, the build year window and the parts your car needs.

For the B46B20, we confirm that your car was built with this code or with a version that can take it. BMW used it in the BMW F48 X1 xDrive25i, BMW F39 X2 xDrive25i, BMW F45 225i and BMW U11 X1 xDrive23i.

We only reserve an engine once the match is confirmed, so you never pay for the wrong unit. You can reach the Hamburg desk by email at autowerkeengines@gmail.com, or by phone and WhatsApp on +49 15510 030835, Monday to Friday, 9:00 to 16:00 CET.

You can also use the VIN check on our site. It reads the year, the make, the model and the engine from the public vehicle register.

See all B46 Engines · Search B46B20 in the shop

What should I know about the BMW B46 engine?

BMW B46 transverse 2.0 turbo petrol engines for X1, X2 and 2 Series Active Tourer. We list one version: B46B20 (2.0 liter (1,998 cc), 170 kW (231 HP), 2015 to 2023).

Because there is only one version, the code is easy to match. You still need the engine computer and wiring that suit your car.

The B46 family was used in chassis F48, F39, F45 and U11. Each engine in the yard is inspected in Hamburg. The code is matched to the listing, the parts on the engine are recorded, the openings are sealed and the real unit is photographed.

Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B46 Engines

What should I check on a used BMW B46 engine?

Start with the basics: the engine code on the block, the recorded mileage and the photos. Make sure the code matches your car and the parts you need are on the unit.

On a B46 petrol engine, a fitter usually checks the spark plugs, the coils, the timing side and the oil seals. These parts are easy to check before fitting and easy to change if needed.

If you want more photos or a short video of a unit, ask the desk and we send them before you pay. An inspection certificate can travel with the order on request.

Once fitted, change the oil and filter early and drive gently at first. Report any problem right away so the warranty stays valid.

See all B46 Engines · Inspection certificate

Which years were BMW B46 engines made?

BMW built the B46 engines we list from about 2015 to 2023. The B46B20 ran from 2015 to 2023.

They went into chassis F48, F39, F45 and U11. The exact year of a car matters, because BMW sometimes changed the engine version or its parts in the middle of a model's life.

Each listing in our yard names the engine year, so you can match it to the build date of your car.

Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.

See all B46 Engines

Glossary

• VANOS — BMW's variable camshaft timing system. It adjusts the intake camshaft (single VANOS) or both camshafts (double VANOS) to improve torque and emissions.
• Valvetronic — BMW's variable valve lift system. It controls engine load with the intake valves instead of a throttle plate, improving economy.
• Direct injection — Fuel is injected directly into the cylinder instead of the intake port. It improves efficiency but can cause carbon build-up on the intake valves.
• Wastegate — A valve that lets exhaust gas bypass the turbine to control boost pressure. Worn wastegates rattle and can cause boost faults.
• Long block — An engine with the block, head and internals but without most ancillaries such as manifolds, turbo, alternator or starter.
• Dressed engine — An engine with most ancillaries fitted, ready to install with fewer parts transferred.
• Compression test — A measurement of the pressure each cylinder builds when cranked. Even readings show healthy rings and valves.
• Leak-down test — A test that pressurises each cylinder and measures how much air escapes, showing where any leak is.
• LCI — Life Cycle Impulse, BMW's name for a mid-life update. Engines often change at the LCI.
• xDrive — BMW's all-wheel-drive system. xDrive cars often use a different sump and oil pickup.
• DME — Digital Motor Electronics, BMW's name for the engine control unit.
• CAS, FEM and BDC — The immobiliser and body modules that must be matched to the engine control unit on modern BMWs.
• Timing chain tensioner — A hydraulic or spring device that keeps the timing chain tight. Worn tensioners cause cold-start rattle.
• Rear-mounted timing chain — A timing chain at the gearbox end of the engine. Replacing it normally requires removing the engine.
• TU — Technical Update, BMW's suffix for a revised version of an engine.

Our verdict

Bought with care, the B48 and B46 is a sound choice. Check the code against your VIN, ask for compression figures and photographs, replace the known weak parts while the engine is out, and fit it with fresh fluids and filters. Do that and a used B48 and B46 will give years of service.

Ready to order, or need help choosing? Browse every B48 and B46 in stock, contact the Hamburg desk or send us your VIN on WhatsApp.

Guides to each B48 and B46 version

• BMW B46B20 engine: specs, problems and prices
• BMW B48B20 engine: specs, problems and prices
• BMW B48B20TU engine: specs, problems and prices
• BMW B48A20 engine: specs, problems and prices
• BMW B48B20B engine: specs, problems and prices