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BMW B48B20TU engine: specs, problems and prices

BMW B48B20TU: 2.0 L petrol, 258 hp, 2018–2026. Which cars use it, common problems, fitment answers and prices from 3.046,00 €.

BMW F40 M135i B48B20 Engine 2022, 82,500 km — photo 1

BMW built the B48B20TU from 2018 to 2026. It is a 2.0 L turbocharged petrol inline-4 with 258 hp and 400 Nm, part of the B48 family. You will find it in the BMW G20 330i, BMW G30 530i, BMW G01 X3 30i and BMW G22 430i.

This guide is about the B48B20TU specifically: its specification, the cars that use it, how it differs from the other B48 versions, what to check, prices from our stock and fitment answers for each model. For the history of the whole family, read our B48 and B46 guide.

  • Capacity and layout: 2.0 L, inline-4, turbocharged
  • Output: 258 hp and 400 Nm
  • Production: 2018–2026
  • Fitted to: 4 models across 4 chassis generations
  • In our stock: 2 units from 3.046,00 € — B48B20TU engines for sale
BMW G20 330i B48B20 Engine 2024, 97,700 km — photo 1
BMW G20 330i B48B20 Engine 2024, 97,700 km — 2.771,00 €

B48B20TU specifications

B48B20TU technical data
ItemValue
Engine codeB48B20TU
FamilyB48
Capacity2.0 L
LayoutInline-4
FuelPetrol
AspirationTurbocharged
Power258 hp
Torque400 Nm
Specific output129 hp per litre
Production2018–2026
Models4

Built from 2018 to 2026, the B48B20TU 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 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.

What the code B48B20TU means

  • 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.

Which BMW models use the B48B20TU

ModelGenerationBuilt
BMW G20 330iseventh 3 Series2018–
BMW G30 530iseventh 5 Series2016–2023
BMW G01 X3 30ithird X32017–2024
BMW G22 430isecond 4 Series coupé2020–

In the G20 seventh 3 Series (2018–), the B48B20TU powered the 330i. We have 1 B48B20TU unit from G20 donor cars. All G20 engines

In the G30 seventh 5 Series (2016–2023), the B48B20TU powered the 530i. Engines from other models fit the G30 as long as the sump, mounts and ancillaries match, which we check against your VIN. All G30 engines

In the G01 third X3 (2017–2024), the B48B20TU powered the X3 30i. Engines from other models fit the G01 as long as the sump, mounts and ancillaries match, which we check against your VIN. All G01 engines

In the G22 second 4 Series coupé (2020–), the B48B20TU powered the 430i. Engines from other models fit the G22 as long as the sump, mounts and ancillaries match, which we check against your VIN. All G22 engines

B48B20TU compared with other B48 versions

CodeCapacityPowerTorqueYears
B48A202.0 L192 hp280 Nm2014–2024
B48B202.0 L258 hp400 Nm2014–2026
B48B20TU2.0 L258 hp400 Nm2018–2026
B48B20B2.0 L258 hp400 Nm2019–2026

B48B20TU or B48B20B?

The B48B20B has the same 258 hp as the B48B20TU, from the same 2.0 L, and was built 2019–2026. Versions of the same size share the block and most mounting points, but the turbo or intake, injectors, software and sometimes the sump differ. Fitting one in place of the other usually means transferring parts and coding the engine control unit, so the simplest choice is the code your car left the factory with.

B48B20TU or B48B20?

The B48B20 has the same 258 hp as the B48B20TU, from the same 2.0 L, and was built 2014–2026. Versions of the same size share the block and most mounting points, but the turbo or intake, injectors, software and sometimes the sump differ. Fitting one in place of the other usually means transferring parts and coding the engine control unit, so the simplest choice is the code your car left the factory with.

B48B20TU or B48A20?

The B48A20 has 66 hp less than the B48B20TU (192 against 258 hp), from the same 2.0 L, and was built 2014–2024. Versions of the same size share the block and most mounting points, but the turbo or intake, injectors, software and sometimes the sump differ. Fitting one in place of the other usually means transferring parts and coding the engine control unit, so the simplest choice is the code your car left the factory with.

Common B48B20TU problems

The B48B20TU shares its weak points with the rest of the B48 family. These are the faults to check on a used unit and on your own engine. The full explanation of each is in the B48 and B46 guide.

Known faultWhat to check
Coolant leaksCheck for coolant loss.
Oil filter housing gasketCheck the filter housing.
PCV and valve coverLook for oil on the head.
Water pumpCheck for coolant trails.

Coolant leaks. Thermostat housings and coolant pipes leak.

B48B20TU maintenance

  • 0W-20 or 0W-30 BMW Longlife-17 FE+ or 01, about 5.25 litres.
  • Oil every 15,000 km or yearly.
  • Timing chain at the rear (gearbox end).

Will the B48B20TU fit my car?

Will the B48B20TU fit my BMW G20 330i?

The B48B20TU is the original engine for the BMW G20 330i, which makes it the straightforward choice. 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?

Yes, the BMW G01 X3 30i left the factory with the B48B20TU, so a B48B20TU from another car is the direct replacement. 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.

BMW G01 X3 xDrive30i B48B20 Engine 2024, 30,600 km — photo 1
BMW G01 X3 xDrive30i B48B20 Engine 2024, 30,600 km — 3.802,00 €

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.

B48B20TU prices

Our B48B20TU stock runs to 2 units, priced from 3.046,00 € to 4.795,00 € with a median of 4.795,00 €.

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.

B48B20TU engines in stock

These B48B20TU units are in our Hamburg yard right now. Each listing shows real photographs of the engine you receive, its mileage and what is fitted.

BMW G20 330i B48B20TU Engine, Premium Grade — 4.795,00 €, reduced from 5.360,00 €. It comes from a recorded donor car, and 22 units are available. Ask the desk for compression figures or extra photographs before you order.

Buying a used B48B20TU: checklist

  1. 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.
  2. 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.
  3. 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.
  4. 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.
  5. 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.
  6. 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.
  7. 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.
  8. 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.
  9. 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.
  10. 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.
  11. 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.
  12. 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.

Questions about the B48B20TU

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

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

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

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

BMW G30 530i B48B20 Engine 2016, 106,300 km — photo 1
BMW G30 530i B48B20 Engine 2016, 106,300 km — 3.425,00 €

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

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

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

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

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 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

BMW F40 M135i B48B20 Engine 2017, 104,900 km — photo 1
BMW F40 M135i B48B20 Engine 2017, 104,900 km — 2.952,00 €

Delivery, warranty and payment

Every B48B20TU we sell is drained, sealed at each opening, strapped to a heat-treated pallet and shrink-wrapped before it leaves Hamburg. You receive photographs of the packed engine and a tracking number.

Delivery is door to door and included in the price. Most European addresses receive the engine within five to ten working days; Germany and its neighbours are usually faster.

A 12-month warranty covers eligible internal failure when the engine is fitted by a qualified workshop with new fluids and filters. You can pay by card, bank transfer or crypto and receive the invoice by email straight away.

B48 and B46 engine guide · B48B20TU engines for sale · All B48 and B46 engines · Send us your VIN