BMW S63 engine: the complete buyer's guide

The S63 is BMW M's twin-turbo 4.4 litre V8. It powered the E70 X5 M and E71 X6 M, the F10 M5, the F06, F12 and F13 M6, the F85 X5 M and F86 X6 M, the F90 M5 and the F95 and F96 X5 M and X6 M, with outputs from 555 to 625 hp.

It is one of the fastest engines BMW has built and also one of the most demanding to maintain. Rod bearings, injectors, turbos and valve stem seals are the known issues, so a careful check of history is essential.

• Production: 2010–2026
• Versions covered: S63B44, S63B44T0, S63B44T2 and S63B44T4
• Output range: 560–625 hp
• Fuel and layout: petrol V8
• Fitted to: 10 BMW models across 10 chassis generations
• In our stock now: 167 units from 2.651,00 € — browse all S63 engines

The S63 at a glance

The table lists every S63 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 4 versions, output runs from 560 to 625 hp. The spread reflects different capacities, tuning for different markets and the technical updates BMW made over 17 years of production.

History of the S63

BMW M launched the S63 in 2009 in the X5 M and X6 M, using the N63's hot-V layout with a cross-bank exhaust manifold. The S63TU (2011) brought Valvetronic and more power for the F10 M5. The S63B44T4 of 2017 powered the F90 M5 and F9x X5 M and X6 M.

2010: the S63B44 arrived with 4.4 L and 560 hp in the BMW F10 M5, BMW F06 M6 and BMW F85 X5 M.

2011: the S63B44T0 arrived with 4.4 L and 560 hp in the BMW F10 M5 and BMW F12 M6. It matched the S63B44 for power.

2017: the S63B44T2 arrived with 4.4 L and 600 hp in the BMW F90 M5, BMW F91 M8 and BMW F92 M8. Compared with the S63B44T0, it added 40 hp.

2017: the S63B44T4 arrived with 4.4 L and 625 hp in the BMW F90 M5, BMW F91 M8 and BMW F95 X5 M. Compared with the S63B44T2, it added 25 hp.

Every S63 version explained

S63B44 (4.4 L, 560 hp)

The S63B44 is a 4.4 L V8 petrol engine, twin-turbo, rated at 560 hp and 680 Nm. BMW built it from 2010 to 2017. That is about 127 hp and 155 Nm per litre, a high specific output that reflects a performance-focused design. Within the S63 family, the S63B44T2 (600 hp) and S63B44T4 (625 hp) are more powerful. It was fitted to the BMW F10 M5, BMW F06 M6, BMW F85 X5 M and BMW F86 X6 M. See every S63B44 in stock.

Reading the code: S marks an S-series code, reserved for engines developed by BMW M; 63 is the family number; B stands for petrol (from the German Benzin); 44 is the capacity in decilitres, so 4.4 litres.

We have 164 S63B44 units in stock, priced from 4.377,00 € to 17.501,00 €.

S63B44T0 (4.4 L, 560 hp)

The S63B44T0 is a 4.4 L V8 petrol engine, turbocharged, rated at 560 hp and 680 Nm. BMW built it from 2011 to 2013. That is about 127 hp and 155 Nm per litre, a high specific output that reflects a performance-focused design. Within the S63 family, the S63B44T2 (600 hp) and S63B44T4 (625 hp) are more powerful. It was fitted to the BMW F10 M5 and BMW F12 M6.

Reading the code: S marks an S-series code, reserved for engines developed by BMW M; 63 is the family number; B stands for petrol (from the German Benzin); 44 is the capacity in decilitres, so 4.4 litres; T0 identifies the version or output stage.

We have 3 S63B44T0 units in stock, priced from 5.006,00 € to 5.020,00 €.

S63B44T2 (4.4 L, 600 hp)

S63B44T2: 4.4 L, V8, petrol, turbocharged. Output is 600 hp with 750 Nm of torque, and production ran from 2017 to 2023. That is about 136 hp and 170 Nm per litre, a high specific output that reflects a performance-focused design. Within the S63 family, the S63B44T4 (625 hp) is more powerful, while the S63B44 (560 hp) and S63B44T0 (560 hp) are milder. It was fitted to the BMW F90 M5, BMW F91 M8 and BMW F92 M8.

Reading the code: S marks an S-series code, reserved for engines developed by BMW M; 63 is the family number; B stands for petrol (from the German Benzin); 44 is the capacity in decilitres, so 4.4 litres; T2 identifies the version or output stage.

We have 4 S63B44T2 units in stock, priced from 6.226,00 € to 6.348,00 €.

S63B44T4 (4.4 L, 625 hp)

S63B44T4: 4.4 L, V8, petrol, twin-turbo. Output is 625 hp with 750 Nm of torque, and production ran from 2017 to 2026. That is about 142 hp and 170 Nm per litre, a high specific output that reflects a performance-focused design. Within the S63 family, it is the most powerful version, while the S63B44 (560 hp), S63B44T0 (560 hp) and S63B44T2 (600 hp) are milder. It was fitted to the BMW F90 M5, BMW F91 M8, BMW F95 X5 M and BMW F96 X6 M. See every S63B44T4 in stock.

Reading the code: S marks an S-series code, reserved for engines developed by BMW M; 63 is the family number; B stands for petrol (from the German Benzin); 44 is the capacity in decilitres, so 4.4 litres; T4 identifies the version or output stage.

We have 8 S63B44T4 units in stock, priced from 5.321,00 € to 17.501,00 €.

Which cars use the S63

The S63 was fitted to 10 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.

BMW F10 sixth 5 Series (2010–2017)

In the sixth 5 Series, built 2010–2017 as a saloon, the S63 powered the M5 (S63B44, 560 hp) and M5 (S63B44T0, 560 hp).

For an F10, confirm the production date as well as the model: BMW often changed engine versions at the mid-life update. We currently have 2 S63 units from F10 donor cars. All F10 engines in stock.

The M5 uses the S63B44. BMW M5 engines for sale.

The M5 uses the S63B44T0. BMW M5 engines for sale.

BMW F06 6 Series Gran Coupé (2012–2018)

In the 6 Series Gran Coupé, built 2012–2018 as a four-door coupé, the S63 powered the M6 (S63B44, 560 hp).

The quickest way to confirm the right S63 for your F06 is to send us the VIN; we check the engine code, the gearbox and the drive type. We currently have 1 S63 unit from F06 donor cars. All F06 engines in stock.

The M6 uses the S63B44. BMW M6 engines for sale.

BMW F85 X5 M (2014–2018)

In the X5 M, built 2014–2018 as an SAV, the S63 powered the X5 M (S63B44, 560 hp).

When ordering for an F85, 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 2 S63 units from F85 donor cars. All F85 engines in stock.

The X5 M uses the S63B44. BMW X5 engines for sale.

BMW F86 X6 M (2014–2019)

In the X6 M, built 2014–2019 as an SAC, the S63 powered the X6 M (S63B44, 560 hp).

For an F86, confirm the production date as well as the model: BMW often changed engine versions at the mid-life update. We currently have 1 S63 unit from F86 donor cars. All F86 engines in stock.

The X6 M uses the S63B44. BMW X6 engines for sale.

BMW F12 third 6 Series convertible (2011–2018)

In the third 6 Series convertible, built 2011–2018 as a convertible, the S63 powered the M6 (S63B44T0, 560 hp).

The quickest way to confirm the right S63 for your F12 is to send us the VIN; we check the engine code, the gearbox and the drive type. We currently have 1 S63 unit from F12 donor cars. All F12 engines in stock.

The M6 uses the S63B44T0. BMW M6 engines for sale.

BMW F90 M5 (2017–2024)

In the M5, built 2017–2024 as a saloon, the S63 powered the M5 (S63B44T2, 600 hp) and M5 (S63B44T4, 625 hp).

For an F90, confirm the production date as well as the model: BMW often changed engine versions at the mid-life update. We currently have 75 S63 units from F90 donor cars. All F90 engines in stock.

The M5 uses the S63B44T2. BMW M5 engines for sale.

The M5 uses the S63B44T4. BMW M5 engines for sale.

BMW F91 M8 convertible (2019–)

In the M8 convertible, built 2019– as a convertible, the S63 powered the M8 (S63B44T2, 600 hp) and M8 (S63B44T4, 625 hp).

For an F91, confirm the production date as well as the model: BMW often changed engine versions at the mid-life update. We currently have 35 S63 units from F91 donor cars. All F91 engines in stock.

The M8 uses the S63B44T2. BMW M8 engines for sale.

The M8 uses the S63B44T4. BMW M8 engines for sale.

BMW F92 M8 coupé (2019–)

In the M8 coupé, built 2019– as a coupé, the S63 powered the M8 (S63B44T2, 600 hp).

The quickest way to confirm the right S63 for your F92 is to send us the VIN; we check the engine code, the gearbox and the drive type. We currently have 2 S63 units from F92 donor cars. All F92 engines in stock.

The M8 uses the S63B44T2. BMW M8 engines for sale.

BMW F95 X5 M (2019–)

In the X5 M, built 2019– as an SAV, the S63 powered the X5 M (S63B44T4, 625 hp).

For an F95, confirm the production date as well as the model: BMW often changed engine versions at the mid-life update. We currently have 35 S63 units from F95 donor cars. All F95 engines in stock.

The X5 M uses the S63B44T4. BMW X5 engines for sale.

BMW F96 X6 M (2019–)

In the X6 M, built 2019– as an SAC, the S63 powered the X6 M (S63B44T4, 625 hp).

For an F96, confirm the production date as well as the model: BMW often changed engine versions at the mid-life update. We currently have 3 S63 units from F96 donor cars. All F96 engines in stock.

The X6 M uses the S63B44T4. BMW X6 engines for sale.

Will an S63 fit my BMW? Model-by-model answers

Short answers for every model that left the factory with an S63, with prices from our current stock.

Will the S63B44 fit my BMW F85 X5 M?

For the BMW F85 X5 M, the S63B44 is the factory engine and the one to order. The X5 M was built 2014–2018, and the S63B44 was produced 2010–2017, 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 F85 X5 M?

We have 2 S63B44 engines from F85 donor cars, priced from 5.801,00 € to 15.541,00 €. 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 S63B44 fit my BMW F86 X6 M?

The S63B44 is the original engine for the BMW F86 X6 M, which makes it the straightforward choice. The X6 M was built 2014–2019, and the S63B44 was produced 2010–2017, 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 F86 X6 M?

We have 1 S63B44 engine from F86 donor cars, priced from 15.550,00 €. 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 S63B44T0 fit my BMW F10 M5?

For the BMW F10 M5, the S63B44T0 is the factory engine and the one to order. The sixth 5 Series was built 2010–2017, and the S63B44T0 was produced 2011–2013, 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 F10 M5?

We have 1 S63B44T0 engine from F10 donor cars, priced from 5.015,00 €. 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 S63B44T0 fit my BMW F12 M6?

Yes, the BMW F12 M6 left the factory with the S63B44T0, so an S63B44T0 from another car is the direct replacement. The third 6 Series convertible was built 2011–2018, and the S63B44T0 was produced 2011–2013, 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 F12 M6?

We have 1 S63B44T0 engine from F12 donor cars, priced from 5.006,00 €. 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 S63B44T2 fit my BMW F90 M5?

For the BMW F90 M5, the S63B44T2 is the factory engine and the one to order. The M5 was built 2017–2024, and the S63B44T2 was produced 2017–2023, 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 F90 M5?

We have 1 S63B44T2 engine from F90 donor cars, priced from 6.348,00 €. 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 S63B44T2 fit my BMW F91 M8?

For the BMW F91 M8, the S63B44T2 is the factory engine and the one to order. The M8 convertible was built 2019–, and the S63B44T2 was produced 2017–2023, 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 F91 M8?

We have 1 S63B44T2 engine from F91 donor cars, priced from 6.339,00 €. 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 S63B44T2 fit my BMW F92 M8?

For the BMW F92 M8, the S63B44T2 is the factory engine and the one to order. The M8 coupé was built 2019–, and the S63B44T2 was produced 2017–2023, 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 F92 M8?

We have 1 S63B44T2 engine from F92 donor cars, priced from 6.330,00 €. 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 S63B44T4 fit my BMW F90 M5?

For the BMW F90 M5, the S63B44T4 is the factory engine and the one to order. The M5 was built 2017–2024, and the S63B44T4 was produced 2017–2026, 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 F90 M5?

We have 3 S63B44T4 engines from F90 donor cars, priced from 5.321,00 € to 17.403,00 €. 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 S63B44T4 fit my BMW F91 M8?

For the BMW F91 M8, the S63B44T4 is the factory engine and the one to order. The M8 convertible was built 2019–, and the S63B44T4 was produced 2017–2026, 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 F91 M8?

We have 1 S63B44T4 engine from F91 donor cars, priced from 17.501,00 €. 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 S63B44T4 fit my BMW F95 X5 M?

For the BMW F95 X5 M, the S63B44T4 is the factory engine and the one to order. The X5 M was built 2019–, and the S63B44T4 was produced 2017–2026, 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 F95 X5 M?

We have 1 S63B44T4 engine from F95 donor cars, priced from 17.492,00 €. 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 S63B44T4 fit my BMW F96 X6 M?

Yes, the BMW F96 X6 M left the factory with the S63B44T4, so an S63B44T4 from another car is the direct replacement. The X6 M was built 2019–, and the S63B44T4 was produced 2017–2026, 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 F96 X6 M?

We have 1 S63B44T4 engine from F96 donor cars, priced from 17.483,00 €. 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.

S63 model-year guide

Use this year-by-year guide to see which S63 versions were in production when your car was built.

2010 — S63B44 was in production. New this year: S63B44.

2011 — S63B44 and S63B44T0 were in production. New this year: S63B44T0.

2012 — S63B44 and S63B44T0 were in production.

2013 — S63B44 and S63B44T0 were in production. Last year for S63B44T0.

2014 — S63B44 was in production.

2015 — S63B44 was in production.

2016 — S63B44 was in production.

2017 — S63B44, S63B44T2 and S63B44T4 were in production. New this year: S63B44T2 and S63B44T4. Last year for S63B44.

2018 — S63B44T2 and S63B44T4 were in production.

2019 — S63B44T2 and S63B44T4 were in production.

2020 — S63B44T2 and S63B44T4 were in production.

2021 — S63B44T2 and S63B44T4 were in production.

2022 — S63B44T2 and S63B44T4 were in production.

2023 — S63B44T2 and S63B44T4 were in production. Last year for S63B44T2.

2024 — S63B44T4 was in production.

2025 — S63B44T4 was in production.

2026 — S63B44T4 was in production. Last year for S63B44T4.

Common S63 problems and what to check

No engine is perfect. These are the faults our workshop sees most often on the S63, what causes them and how to check a used unit before you buy.

Rod bearings

Early S63 engines can show rod bearing wear, especially with long oil intervals.

How to check: Oil analysis and service history; many owners replace bearings preventively.

Injectors

Injectors fail and cause misfires.

How to check: Read misfire counters and injector corrections.

Turbochargers

Turbos wear and leak oil because of heat inside the V.

How to check: Look for blue smoke and check shaft play.

Valve stem seals

Seals harden and cause oil consumption.

How to check: Ask for consumption figures.

Timing chain

Chains stretch at high mileage.

How to check: Check camshaft timing values.

Diagnosing a failing S63: 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 S63 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.

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.

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.

Oil pressure warning or bearing noise at high revs. On M engines, a warning at high revs can be the first sign of bearing wear. Check the oil level and stop driving hard until it is diagnosed.

Repair or replace your S63?

Repair makes sense when the fault is outside the engine or in a part that can be replaced without opening it: sensors, coils, injectors, gaskets, the water pump or a turbo. Replacement makes sense when the bottom end, the crankshaft, the bores or the head are damaged, because rebuilding an S63 properly costs more than a good used unit.

M engines are expensive to rebuild because parts are costly and specialist labour is needed. A used M engine with documented bearings is often the better value for road cars.

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.

S63 maintenance and running costs

Prefer later S63TU and T4 engines. Check the version code before ordering.

Shorter oil intervals than the factory maximum are the cheapest insurance for an S63. 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 S63: the full checklist

Work through these points before you order a used S63, 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. 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.
14. 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.
15. 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.
16. Bearing and valve clearance history. M engines are built to tighter tolerances. Ask for the last rod bearing replacement and valve clearance check, and consider an oil analysis if the engine can be run.
17. Both cylinder banks. On a V engine, check compression, plugs and coils on both banks. Faults on one bank alone are common and easy to miss on a quick test.

S63 prices: what you should pay

Our S63 stock runs to 167 units, priced from 2.651,00 € to 17.501,00 € with a median of 12.525,00 €.

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.

S63 prices by model year

Engines from 2005–2009 have a median of 5.758,00 €, while units from 2025–2029 sit at 11.813,00 €. Newer engines usually cost more because they come from younger donor cars with lower mileage and later updates.

S63 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.

S63 engines in stock now

These S63 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 F90 M5 Competition S63B44 Engine 2023, 152,500 km10.857,00 €BMW F90 M5 Competition S63B44 Engine 2021, 18,500 km14.760,00 €BMW F90 M5 Competition S63B44 Engine 2020, 186,700 km11.716,00 €BMW F90 M5 Competition S63B44 Engine 2020, 174,500 km12.138,00 €BMW F91 M8 S63B44 Engine 2018, 107,300 km10.769,00 €BMW F95 X5 M S63B44 Engine 2019, 190,100 km13.988,00 €BMW F90 M5 Competition S63B44 Engine 2017, 28,100 km13.420,00 €BMW F90 M5 S63B44 Engine 2018, 31,600 km14.915,00 €BMW F90 M5 S63B44 Engine 2020, 67,900 km13.678,00 €BMW F91 M8 S63B44 Engine 2020, 79,300 km13.836,00 €BMW F91 M8 S63B44 Engine 2022, 180,700 km13.889,00 €BMW F90 M5 Competition S63B44 Engine 2024, 139,600 km11.127,00 €

BMW F90 M5 Competition S63B44 Engine 2023, 152,500 km — 10.857,00 €, reduced from 11.550,00 €. It comes from a 2023 donor car with 152,500 km, and 18 units are available. Ask the desk for compression figures or extra photographs before you order.

BMW F90 M5 Competition S63B44 Engine 2021, 18,500 km — 14.760,00 €, reduced from 15.650,00 €. It comes from a 2021 donor car with 18,500 km, and 12 units are available. Ask the desk for compression figures or extra photographs before you order.

BMW F90 M5 Competition S63B44 Engine 2020, 186,700 km — 11.716,00 €, reduced from 12.550,00 €. It comes from a 2020 donor car with 186,700 km, and 23 units are available. The listing shows every side of the engine and the fitted parts.

BMW F90 M5 Competition S63B44 Engine 2020, 174,500 km — 12.138,00 €, reduced from 13.350,00 €. It comes from a 2020 donor car with 174,500 km, and 6 units are available. We can confirm fitment against your VIN the same day.

BMW F91 M8 S63B44 Engine 2018, 107,300 km — 10.769,00 €, reduced from 11.550,00 €. It comes from a 2018 donor car with 107,300 km, and 9 units are available. Ask the desk for compression figures or extra photographs before you order.

BMW F95 X5 M S63B44 Engine 2019, 190,100 km — 13.988,00 €, reduced from 15.400,00 €. It comes from a 2019 donor car with 190,100 km, and 22 units are available. The listing shows every side of the engine and the fitted parts.

BMW F90 M5 Competition S63B44 Engine 2017, 28,100 km — 13.420,00 €, reduced from 14.400,00 €. It comes from a 2017 donor car with 28,100 km, and 6 units are available. The listing shows every side of the engine and the fitted parts.

BMW F90 M5 S63B44 Engine 2018, 31,600 km — 14.915,00 €, reduced from 15.600,00 €. It comes from a 2018 donor car with 31,600 km, and 12 units are available. Ask the desk for compression figures or extra photographs before you order.

BMW F90 M5 S63B44 Engine 2020, 67,900 km — 13.678,00 €, reduced from 14.450,00 €. It comes from a 2020 donor car with 67,900 km, and 30 units are available. We can confirm fitment against your VIN the same day.

BMW F91 M8 S63B44 Engine 2020, 79,300 km — 13.836,00 €, reduced from 14.800,00 €. It comes from a 2020 donor car with 79,300 km, and 15 units are available. The listing shows every side of the engine and the fitted parts.

BMW F91 M8 S63B44 Engine 2022, 180,700 km — 13.889,00 €, reduced from 14.550,00 €. It comes from a 2022 donor car with 180,700 km, and 13 units are available. We can confirm fitment against your VIN the same day.

BMW F90 M5 Competition S63B44 Engine 2024, 139,600 km — 11.127,00 €, reduced from 12.600,00 €. It comes from a 2024 donor car with 139,600 km, and 25 units are available. We can confirm fitment against your VIN the same day.

Fitting a replacement S63

These are the steps we recommend to every workshop fitting one of our S63 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. 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.
8. 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.
9. 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.
10. 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.
11. Reset VANOS adaptations. Clear the VANOS adaptations so the ECU learns the camshaft positions of the new engine.
12. 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.
13. 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 100 hp or more. Gearbox and cooling limits must be considered.

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.

S63 compared with similar BMW engines

Buyers often compare the S63 with these engines. Here is how they line up.

The S68 is milder (up to 585 hp against 625 hp) and uses timing chains. Its best-known faults are limited history and accident damage. Read the S68 guide.

The S65 is milder (up to 420 hp against 625 hp) and uses timing chains, one per bank. Its best-known faults are rod bearings and throttle actuators. Read the S65 guide.

The S62 is milder (up to 400 hp against 625 hp) and uses timing chains, one per bank, with guides and tensioners. Its best-known faults are timing chain guides and vanos. Read the S62 guide.

Delivery, warranty and payment

Every S63 engine 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.

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.

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.

We deliver S63 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 S63

What should I check on a used BMW S63 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 an S63 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 S63 Engines · Inspection certificate

Which years were BMW S63 engines made?

BMW built the S63 engines we list from about 2011 to 2023. The S63B44 ran from 2011 to 2023.

They went into chassis F90, F10, F06, F91, F95 and F96. 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 S63 Engines

Will the S63B44 engine fit my BMW F90 M5?

Yes, if your BMW F90 M5 was built with the S63B44. BMW used this 4.4 liter (4,395 cc) petrol engine with 441 kW (600 HP) in the F90 M5 from about 2011 to 2023.

In our records the S63B44 is the engine for the F90 M5, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Also tell us if your F90 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 S63 Engines · Search S63B44 in the shop

How much is a replacement S63B44 engine for a BMW F90 M5?

A used S63B44 for the BMW F90 M5 costs from about 10.300 € to 15.600 € 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 S63B44 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 S63 Engines · Search S63B44 in the shop

Will the S63B44 engine fit my BMW F10 M5?

Yes, if your BMW F10 M5 was built with the S63B44. BMW used this 4.4 liter (4,395 cc) petrol engine with 441 kW (600 HP) in the F10 M5 from about 2011 to 2023.

In our records the S63B44 is the engine for the F10 M5, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Also tell us if your F10 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 S63 Engines · Search S63B44 in the shop

How much is a replacement S63B44 engine for a BMW F10 M5?

A used S63B44 for the BMW F10 M5 costs from about 10.300 € to 15.600 € 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 S63B44 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 S63 Engines · Search S63B44 in the shop

Will the S63B44 engine fit my BMW F06 M6?

Yes, if your BMW F06 M6 was built with the S63B44. BMW used this 4.4 liter (4,395 cc) petrol engine with 441 kW (600 HP) in the F06 M6 from about 2011 to 2023.

In our records the S63B44 is the engine for the F06 M6, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Also tell us if your F06 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 S63 Engines · Search S63B44 in the shop

How much is a replacement S63B44 engine for a BMW F06 M6?

A used S63B44 for the BMW F06 M6 costs from about 10.300 € to 15.600 € 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 S63B44 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 S63 Engines · Search S63B44 in the shop

Will the S63B44 engine fit my BMW F91 M8?

Yes, if your BMW F91 M8 was built with the S63B44. BMW used this 4.4 liter (4,395 cc) petrol engine with 441 kW (600 HP) in the F91 M8 from about 2011 to 2023.

In our records the S63B44 is the engine for the F91 M8, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Also tell us if your F91 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 S63 Engines · Search S63B44 in the shop

How much is a replacement S63B44 engine for a BMW F91 M8?

A used S63B44 for the BMW F91 M8 costs from about 10.300 € to 15.600 € 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 S63B44 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 S63 Engines · Search S63B44 in the shop

Will the S63B44 engine fit my BMW F95 X5 M?

Yes, if your BMW F95 X5 M was built with the S63B44. BMW used this 4.4 liter (4,395 cc) petrol engine with 441 kW (600 HP) in the F95 X5 M from about 2011 to 2023.

Some F95 X5 M cars were built with a different engine: the S68B44. These look alike from the outside, so check the code on your 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 S63 Engines · Search S63B44 in the shop

How much is a replacement S63B44 engine for a BMW F95 X5 M?

A used S63B44 for the BMW F95 X5 M costs from about 10.300 € to 15.600 € 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 S63B44 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 S63 Engines · Search S63B44 in the shop

Will the S63B44 engine fit my BMW F96 X6 M?

Yes, if your BMW F96 X6 M was built with the S63B44. BMW used this 4.4 liter (4,395 cc) petrol engine with 441 kW (600 HP) in the F96 X6 M from about 2011 to 2023.

Some F96 X6 M cars were built with a different engine: the S68B44. These look alike from the outside, so check the code on your 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 S63 Engines · Search S63B44 in the shop

How much is a replacement S63B44 engine for a BMW F96 X6 M?

A used S63B44 for the BMW F96 X6 M costs from about 10.300 € to 15.600 € 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 S63B44 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 S63 Engines · Search S63B44 in the shop

What is the BMW S63B44 engine?

The BMW S63B44 is a 4.4 liter (4,395 cc) petrol engine from the S63 family. It has a V8, DOHC, 32 valve layout with twin turbochargers, and makes 441 kW (600 HP) with 750 Nm of torque. BMW built it from 2011 to 2023 and it meets the Euro 6 emission standard.

You find the S63B44 in the BMW F90 M5, BMW F10 M5, BMW F06 M6, BMW F91 M8, BMW F95 X5 M and BMW F96 X6 M. What we list: BMW S63 4.4 twin-turbo V8 engines for M5, M6, M8 and X5 M.

At Autowerke Engines every S63B44 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 S63 Engines · Search S63B44 in the shop

How much does a used BMW S63B44 engine cost?

A used BMW S63B44 engine in our yard usually costs between 10.300 € and 15.600 €. 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 S63 Engines · Search S63B44 in the shop

Which cars use the BMW S63B44 engine?

BMW fitted the S63B44 to the BMW F90 M5, BMW F10 M5, BMW F06 M6, BMW F91 M8, BMW F95 X5 M and BMW F96 X6 M. These cars were built with this engine from about 2011 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 S63B44 is the only S63 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 S63 Engines · Search S63B44 in the shop

How much power and torque does the BMW S63B44 have?

From the factory the BMW S63B44 makes 441 kW (600 HP) and 750 Nm of torque. It is a 4.4 liter (4,395 cc) V8, DOHC, 32 valve petrol engine with twin turbochargers.

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 S63B44 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 S63 Engines · Search S63B44 in the shop

How do I know a used S63B44 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. 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 S63B44, 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 S63 Engines · Search S63B44 in the shop

What comes with a used S63B44 engine?

Each S63B44 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 S63 Engines · Search S63B44 in the shop

Is the BMW S63B44 a diesel or petrol engine?

The S63B44 is a petrol engine. It is a 4.4 liter (4,395 cc) V8, DOHC, 32 valve unit with twin turbochargers, 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 S63 Engines · Search S63B44 in the shop

Are there other versions of the BMW S63B44?

In our yard the S63B44 is the only listed version of the S63 family. It makes 441 kW (600 HP) and 750 Nm, and was built from 2011 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 S63 Engines · Search S63B44 in the shop

How long does delivery of an S63B44 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 S63 Engines · Search S63B44 in the shop

What should I replace when I fit a used S63B44 engine?

A used engine lasts longest when it starts life in your car with fresh fluids and new seals. Clean the intercooler and the intake pipes, and fill the turbo oil feed with clean oil before the first start, so the turbo never runs dry. 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. 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 S63 Engines · Search S63B44 in the shop

Does a used S63B44 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 S63 Engines · Search S63B44 in the shop

Can you check if an S63B44 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 S63B44, we confirm that your car was built with this code or with a version that can take it. BMW used it in the BMW F90 M5, BMW F10 M5, BMW F06 M6, BMW F91 M8 and BMW F95 X5 M 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 S63 Engines · Search S63B44 in the shop

What should I know about the BMW S63 engine?

BMW S63 4.4 twin-turbo V8 engines for M5, M6, M8 and X5 M. We list one version: S63B44 (4.4 liter (4,395 cc), 441 kW (600 HP), 2011 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 S63 family was used in chassis F90, F10, F06, F91, F95 and F96. Before a unit is listed, the yard checks the engine code against the listing, writes down the parts fitted to it, seals every opening and photographs the real engine you will receive.

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 S63 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.
• 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.
• Rod bearings — The bearings between the connecting rods and the crankshaft. On several M engines they wear and are replaced preventively.
• ITB — Individual throttle bodies, one per cylinder, used on most naturally aspirated M engines for sharp response.
• Timing chain tensioner — A hydraulic or spring device that keeps the timing chain tight. Worn tensioners cause cold-start rattle.
• TU — Technical Update, BMW's suffix for a revised version of an engine.

Our verdict

The S63 rewards owners who understand it. 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 S63 will give years of service.

Ready to order, or need help choosing? Browse every S63 in stock, contact the Hamburg desk or send us your VIN on WhatsApp.

Guides to each S63 version

• BMW S63B44 engine: specs, problems and prices
• BMW S63B44T4 engine: specs, problems and prices
• BMW S63B44T0 engine: specs, problems and prices
• BMW S63B44T2 engine: specs, problems and prices