BMW M engines are the most exciting engines the company makes — and among the most demanding. From the four-cylinder S14 of the E30 M3 to the hybrid-assisted S68, each generation has its own character and its own weak points.
This guide covers every M engine family we supply: the cars, the outputs, the faults to know about and the prices in our stock.
What makes an M engine different
M engines use stronger internals, higher compression, individual throttle bodies on most naturally aspirated versions, and oil systems designed for track use. They rev higher and produce more power per litre than the engines they are based on.
That performance comes with tighter tolerances and more maintenance: valve clearances, rod bearings and VANOS systems need attention that regular BMW engines do not.
Matching numbers
For collectible M cars, the original engine adds significant value. If you are replacing the engine in an E30 M3, E28 or E34 M5, or Z8, keep the original block with the car's documents even if it cannot be repaired.
Every M engine family
S14
The S14 is the four-cylinder racing engine that made the E30 M3 a touring-car legend. With individual throttle bodies and a red line near 7,000 rpm, it has a character no later four-cylinder BMW has matched.
Units are rare and expensive. Buyers are restorers of E30 M3s, historic racers and collectors. Originality, documentation and internal condition are everything.
BMW Motorsport built the S14 from 1986 to 1991, combining an M10-derived block with a four-valve head derived from the M88. It came as 2.3 litres (195 to 215 hp), the 2.3 Evo and the 2.5 Sport Evolution with 238 hp. Group A versions went far higher.
- Valve clearances. The S14 uses shims under buckets; clearances need checking regularly, and tight valves burn.
- Timing chain and guides. Chain wear and guide rail wear are common on high-mileage or track engines.
- Throttle body linkage. Wear in the ITB linkage causes uneven idle and poor response.
- Bearing wear on track engines. Hard use wears the rod bearings.
M88 and S38
The M88 and S38 are the twenty-four-valve straight-sixes from BMW Motorsport that powered the M1, the M635CSi and the E28 and E34 M5. They are hand-assembled engines with individual throttle bodies and a deep, mechanical howl.
Today buyers want them for M5 restorations, M1 projects and serious E30 or E24 builds. Condition varies widely, so look for documentation and a recent leak-down test.
The M88 began in the M1 in 1978 and moved into the M635CSi and E28 M5 as the M88/3. The S38 followed in 1986 for US cars, then grew to 3.6 litres (315 hp) and finally 3.8 litres (340 hp) in the E34 M5 until 1995.
- Valve clearances. Shim-type valve gear needs regular checks; neglected engines burn exhaust valves.
- Timing chain guides. The duplex chain lasts, but guides and tensioners wear.
- Oil pump drive nut. Many owners safety-wire the oil pump sprocket nut as a preventive measure.
- Throttle bodies and sensors. ITB linkages, air flow meters and idle valves age and cause uneven running.
In stock: 60 units from 2.837,00 €, median 8.302,00 €.
S50 and S52
The S50 and S52 powered the E36 M3 and the first Z3 M. The European S50B30 gave 286 hp, the S50B32 Evolution 321 hp with double VANOS, and the US S52B32 240 hp from an iron block related to the M52.
These engines are bought for E36 M3 restorations, for E30 swaps and by track drivers. The S50B32 is the most sought after; the S52 is cheaper and simpler to run.
BMW Motorsport launched the S50B30 in 1992 with single VANOS and individual throttle bodies. The 3.2 litre S50B32 of 1995 brought double VANOS and 321 hp. For North America, BMW built the S52B32 from an M52 block with an M50-style head and single VANOS.
- Oil pump nut. The oil pump sprocket nut can back off, leading to sudden oil pressure loss. It is commonly safety-wired or replaced with a self-locking nut.
- VANOS (S50B32). The double VANOS unit can fail, causing rattle and loss of torque.
- Cooling system. Plastic expansion tanks, thermostat housings and impellers crack.
- Valve cover and oil leaks. Gaskets harden and leak, especially around the VANOS unit.
In stock: 80 units from 3.246,00 €, median 7.043,00 €.
S54
The S54 is the last of BMW's naturally aspirated straight-six M engines and one of the most loved. It powered the E46 M3 (343 hp, CSL 360 hp), the Z3 M Coupé and Roadster, and the Z4 M Coupé and Roadster.
It revs to 8,000 rpm and sounds like a race engine. Buyers are M3 owners replacing a failed unit, swappers building E30 and E36 projects, and collectors. The rod bearings and the VANOS are the two areas to understand before you buy.
BMW Motorsport launched the S54 in 2000 with an iron block, individual throttle bodies and high-pressure double VANOS. The CSL version added a carbon airbox and 360 hp. Production ended in 2008 with the Z4 M.
- Rod bearings. S54 rod bearings wear, particularly on engines used hard with infrequent oil changes. Many owners replace them preventively every 100,000 km.
- VANOS unit. The VANOS unit bolts, oil pump disc and hub can fail. Symptoms are rattle, loss of power and fault codes.
- Valve clearances. Shims need checking every 30,000 to 50,000 km.
- Throttle actuator. The electric throttle actuator can fail, forcing limp mode.
- Oil consumption. Some consumption is normal; a sharp increase points to rings or bearings.
In stock: 121 units from 2.915,00 €, median 7.998,00 €.
S55
The S55 is the twin-turbo straight-six behind the F80 M3, F82 and F83 M4 and the F87 M2 Competition and CS. It produces between 410 and 460 hp from three litres with a closed-deck block and forged crank.
It is strong and widely tuned. Buyers want it to replace a damaged engine, to swap into older chassis, or as a spare for track cars.
BMW M launched the S55 in 2014. It used two mono-scroll turbochargers, an indirect intercooler and lightweight internals. Production ended around 2020 when the S58 arrived.
- Crank hub. The crank hub on heavily tuned engines can slip. Many owners fit a pinned or keyed crank hub when tuning.
- Charge pipe. The plastic charge pipe can crack under high boost.
- Oil leaks. Valve cover and oil filter housing gaskets leak at higher mileage.
- Cooling. Auxiliary radiators and hoses need checking.
In stock: 215 units from 3.865,00 €, median 8.975,00 €.
S58
The S58 is BMW M's current twin-turbo straight-six, used in the G80 M3, G82 and G83 M4, G87 M2 and the F97 and F98 X3 M and X4 M. Outputs range from 460 to 550 hp.
It is a modern, robust engine with a 3D-printed cylinder head core and a forged crank. Used units come from accident cars and are bought as replacements or for high-end swaps.
BMW M launched the S58 in 2019 in the X3 M. It shares its architecture with the B58 but has a closed-deck block, forged internals and two mono-scroll turbos.
- Limited service history. Most S58 units are young, so few patterns of failure have emerged. History and accident type matter most.
- Oil leaks. Gaskets can seep at higher mileage.
- Cooling. Check radiators and coolant lines after a crash.
In stock: 187 units from 5.622,00 €, median 12.993,00 €.
S62
The S62 is the 4.9 litre V8 from the E39 M5 and the Z8. It produces 400 hp and 500 Nm, has eight individual throttle bodies and double VANOS, and gives the E39 M5 its reputation as one of the best super-saloons ever built.
Buyers are E39 M5 and Z8 owners replacing a damaged engine and builders who want a characterful naturally aspirated V8. Timing chain guides, VANOS and rod bearings are the areas to understand.
BMW M launched the S62 in 1998, based on the M62 but with a new block, double VANOS, ITBs and a dry-sump-style oil system. It was built until 2003. The S85 V10 replaced it in the E60 M5.
- Timing chain guides. Plastic guides and tensioners wear and can break.
- VANOS. VANOS solenoids, seals and the high-pressure oil supply cause rattle and torque loss.
- Rod bearings. High-mileage engines used hard show bearing wear.
- Throttle actuator. The throttle actuator and its linkage cause limp mode.
- Cooling. Water pump, radiator and expansion tank age.
In stock: 4 units from 5.646,00 €, median 14.221,00 €.
S63
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.
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.
- Rod bearings. Early S63 engines can show rod bearing wear, especially with long oil intervals.
- Injectors. Injectors fail and cause misfires.
- Turbochargers. Turbos wear and leak oil because of heat inside the V.
- Valve stem seals. Seals harden and cause oil consumption.
- Timing chain. Chains stretch at high mileage.
In stock: 167 units from 2.651,00 €, median 12.525,00 €.
S65
The S65 is the 4.0 litre V8 from the E90, E92 and E93 M3. It revs to 8,400 rpm, produces 420 hp (450 hp in the GTS version) and was the only V8 ever fitted to a production M3.
It is loved for its sound and response. Rod bearings and throttle actuators are the known issues, so a used S65 should come with a clear service history or be fitted with new bearings.
BMW M launched the S65 in 2007, derived from the S85 V10 with two cylinders removed. It used individual throttle bodies and double VANOS. Production ended in 2013 when the S55 replaced it.
- Rod bearings. Rod bearing wear is the best-known S65 issue. Many owners replace them preventively at 100,000 km.
- Throttle actuators. The two throttle actuators fail and cause limp mode.
- Idle control valve. The idle control valve fails and causes unstable idle.
- Oil leaks. Oil pan and valve cover gaskets leak at higher mileage.
In stock: 84 units from 5.533,00 €, median 9.929,00 €.
S68
The S68 is BMW M's 4.4 litre twin-turbo V8 with mild-hybrid assistance, used in the XM, the G90 M5 and the latest X5 M and X6 M Competition models.
It is new and rare on the used market. Units usually come from accident-damaged cars and are bought as direct replacements.
BMW M launched the S68 in 2022 as the successor to the S63, with a new cylinder head, updated turbos and integration with the hybrid system.
- Limited history. The S68 is too new for clear failure patterns to have emerged.
- Accident damage. Units from crashed cars can have damaged sensors, wiring or cooling parts.
S85
The S85 is the 5.0 litre V10 from the E60 M5 and E63 M6. It revs to 8,250 rpm, produces 507 hp and was inspired by BMW's Formula One V10 programme.
It is an extraordinary engine but demands care. Rod bearings, throttle actuators and the high-pressure VANOS system are the areas to understand before buying.
BMW M launched the S85 in 2005 with individual throttle bodies, high-pressure double VANOS and a bedplate block. It was built until 2010, when the twin-turbo S63 replaced it.
- Rod bearings. Rod bearing wear is the S85's best-known issue. Preventive replacement is standard practice.
- Throttle actuators. The two throttle actuators fail and cause limp mode.
- High-pressure VANOS. The VANOS pump and solenoids fail and cause codes and loss of power.
- Oil leaks. Oil pan and valve cover gaskets leak.
In stock: 57 units from 9.122,00 €, median 10.924,00 €.
Buying checklist
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- Both cylinder banks. On the V10, check both banks separately for compression, throttle actuator faults and VANOS codes.
Questions buyers ask
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.
What is the BMW S68B44 engine?
The BMW S68B44 is a 4.4 liter (4,395 cc) petrol engine from the S68 family. It has a V8, DOHC, 32 valve layout with twin turbochargers, and makes 430 kW (585 HP) with 750 Nm of torque. BMW built it from 2022 to 2026 and it meets the Euro 6 emission standard.
You find the S68B44 in the BMW G09 XM, BMW F95 X5 M, BMW F96 X6 M and BMW G90 M5. What we list: BMW S68 4.4 twin-turbo V8 engines for the XM, X5 M and current M5.
At Autowerke Engines every S68B44 is a real used engine from our yard in Hamburg. 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. 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 S68 Engines · Search S68B44 in the shop
How much does a used BMW S68B44 engine cost?
A used BMW S68B44 engine in our yard usually costs between 11.550 € and 17.450 €. 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 S68 Engines · Search S68B44 in the shop
Which cars use the BMW S68B44 engine?
BMW fitted the S68B44 to the BMW G09 XM, BMW F95 X5 M, BMW F96 X6 M and BMW G90 M5. These cars were built with this engine from about 2022 to 2026.
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 S68B44 is the only S68 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 S68 Engines · Search S68B44 in the shop
How much power and torque does the BMW S68B44 have?
From the factory the BMW S68B44 makes 430 kW (585 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 S68B44 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 S68 Engines · Search S68B44 in the shop
How do I know a used S68B44 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. If you want more photos or a short video of a unit, ask the desk and we send them before you pay.
On a petrol engine like the S68B44, 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 S68 Engines · Search S68B44 in the shop
What comes with a used S68B44 engine?
Each S68B44 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 S68 Engines · Search S68B44 in the shop
Is the BMW S68B44 a diesel or petrol engine?
The S68B44 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 S68 Engines · Search S68B44 in the shop
Are there other versions of the BMW S68B44?
In our yard the S68B44 is the only listed version of the S68 family. It makes 430 kW (585 HP) and 750 Nm, and was built from 2022 to 2026.
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 S68 Engines · Search S68B44 in the shop
How long does delivery of an S68B44 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 S68 Engines · Search S68B44 in the shop
What should I replace when I fit a used S68B44 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 S68 Engines · Search S68B44 in the shop
Does a used S68B44 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 S68 Engines · Search S68B44 in the shop
Can you check if an S68B44 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 S68B44, we confirm that your car was built with this code or with a version that can take it. BMW used it in the BMW G09 XM, BMW F95 X5 M, BMW F96 X6 M and BMW G90 M5.
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 S68 Engines · Search S68B44 in the shop
What should I know about the BMW S68 engine?
BMW S68 4.4 twin-turbo V8 engines for the XM, X5 M and current M5. We list one version: S68B44 (4.4 liter (4,395 cc), 430 kW (585 HP), 2022 to 2026).
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 S68 family was used in chassis G09, F95, F96 and G90. 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.
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.
What should I check on a used BMW S68 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 S68 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 S68 Engines · Inspection certificate
Which years were BMW S68 engines made?
BMW built the S68 engines we list from about 2022 to 2026. The S68B44 ran from 2022 to 2026.
They went into chassis G09, F95, F96 and G90. 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.
What is the BMW S70B56 engine?
The BMW S70B56 is a 5.6 liter (5,576 cc) petrol engine from the S70 family. It has a V12, SOHC, 24 valve layout with no turbo (naturally aspirated), and makes 280 kW (381 HP) with 550 Nm of torque. BMW built it from 1992 to 1996 and it meets the Euro 1 emission standard.
You find the S70B56 in the BMW E31 850CSi. What we list: BMW S70 5.6 V12 engines from the E31 850CSi.
At Autowerke Engines every S70B56 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 S70 Engines · Search S70B56 in the shop
How much does a used BMW S70B56 engine cost?
A used BMW S70B56 engine in our yard usually costs between 11.550 € and 17.450 €. 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 S70 Engines · Search S70B56 in the shop
Which cars use the BMW S70B56 engine?
BMW fitted the S70B56 to the BMW E31 850CSi. These cars were built with this engine from about 1992 to 1996.
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 S70B56 is the only S70 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 S70 Engines · Search S70B56 in the shop
How much power and torque does the BMW S70B56 have?
From the factory the BMW S70B56 makes 280 kW (381 HP) and 550 Nm of torque. It is a 5.6 liter (5,576 cc) V12, SOHC, 24 valve petrol engine with no turbo (naturally aspirated).
Without a turbo, the power builds smoothly with the revs. A clean air intake, healthy ignition and the correct fuel 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 S70B56 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 S70 Engines · Search S70B56 in the shop
How do I know a used S70B56 engine is in good shape?
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. 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 S70B56, 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 S70 Engines · Search S70B56 in the shop
What comes with a used S70B56 engine?
Each S70B56 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 S70 Engines · Search S70B56 in the shop
Is the BMW S70B56 a diesel or petrol engine?
The S70B56 is a petrol engine. It is a 5.6 liter (5,576 cc) V12, SOHC, 24 valve unit with no turbo (naturally aspirated), and it was built to the Euro 1 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 S70 Engines · Search S70B56 in the shop
Are there other versions of the BMW S70B56?
In our yard the S70B56 is the only listed version of the S70 family. It makes 280 kW (381 HP) and 550 Nm, and was built from 1992 to 1996.
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 S70 Engines · Search S70B56 in the shop
How long does delivery of an S70B56 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 S70 Engines · Search S70B56 in the shop
What should I replace when I fit a used S70B56 engine?
A used engine lasts longest when it starts life in your car with fresh fluids and new seals. Check the spark plugs and the ignition coils, and make sure the fuel lines are clean and tight before you crank the engine. 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 S70 Engines · Search S70B56 in the shop
Does a used S70B56 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 S70 Engines · Search S70B56 in the shop
Can you check if an S70B56 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 S70B56, we confirm that your car was built with this code or with a version that can take it. BMW used it in the BMW E31 850CSi.
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 S70 Engines · Search S70B56 in the shop
What should I know about the BMW S70 engine?
BMW S70 5.6 V12 engines from the E31 850CSi. We list one version: S70B56 (5.6 liter (5,576 cc), 280 kW (381 HP), 1992 to 1996).
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 S70 family was used in chassis E31. 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.
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.
Delivery, warranty and payment
Every 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.
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.
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 BMW engines from Hamburg to customers across Europe and beyond. Typical door-to-door times and customs status:
| Country | Typical delivery | Customs and VAT |
|---|---|---|
| Germany | 2–4 working days | No customs; German VAT on the invoice |
| Netherlands | 3–5 working days | EU delivery, no customs |
| Belgium | 3–5 working days | EU delivery, no customs |
| Austria | 3–5 working days | EU delivery, no customs |
| Denmark | 3–5 working days | EU delivery, no customs |
| Poland | 3–6 working days | EU delivery, no customs |
| Czech Republic | 3–6 working days | EU delivery, no customs |
| France | 4–7 working days | EU delivery, no customs |
| Italy | 5–8 working days | EU delivery, no customs |
| Spain | 5–8 working days | EU delivery, no customs |
| Portugal | 6–9 working days | EU delivery, no customs |
| Sweden | 5–8 working days | EU delivery, no customs |
| Norway | 6–10 working days | Export; import VAT and duty in Norway |
| Switzerland | 5–8 working days | Export; import VAT and duty in Switzerland |
| United Kingdom | 5–10 working days | Export; UK import VAT and duty on arrival |
| Ireland | 6–10 working days | EU delivery, no customs |
| United States | Quoted per order | Export; US import duties apply |
| United Arab Emirates | Quoted per order | Export; UAE import duties apply |
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.
More answers from the Hamburg desk
These are further questions buyers ask us when choosing a replacement engine, answered by the people who check, pack and ship the engines.
Is the BMW S52B32 a diesel or petrol engine?
The S52B32 is a petrol engine. It is a 3.2 liter (3,152 cc) inline 6, DOHC, 24 valve unit with no turbo (naturally aspirated), and it was built to the US 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.
Can you check if an S50B30 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 S50B30, we confirm that your car was built with this code or with a version that can take it. BMW used it in the BMW E36 M3 3.0 and BMW E36 M3 Coupe 3.0.
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.
Which cars use the BMW S55B30 engine?
BMW fitted the S55B30 to the BMW F80 M3, BMW F82 M4, BMW F83 M4 and BMW F87 M2 Competition. These cars were built with this engine from about 2014 to 2020.
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 S55B30 is the only S55 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.
Can you check if an S52B32 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 S52B32, we confirm that your car was built with this code or with a version that can take it. BMW used it in the BMW E36 M3 US and BMW Z3 M US.
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.
What should I replace when I fit a used S54B32 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. Check the spark plugs and the ignition coils, and make sure the fuel lines are clean and tight before you crank the engine. Change the drive belt, the thermostat and the water pump seals if they look tired, because they are cheap while the engine is out.
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.
What should I replace when I fit a used S52B32 engine?
A used engine lasts longest when it starts life in your car with fresh fluids and new seals. Check the spark plugs and the ignition coils, and make sure the fuel lines are clean and tight before you crank the engine. 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.
Can I reuse parts from my old engine?
Often yes. Turbos, injectors, the alternator and other ancillaries can move over if they are in good condition.
Parts that failed with the old engine, or that look worn, should be replaced. A worn turbo can damage a good engine.
Always use new gaskets and seals where parts are moved over.
Our listings show what is fitted to each unit, so you can plan what to reuse.
What should I replace when I fit a used S14B23 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.
Is the BMW S55B30 a diesel or petrol engine?
The S55B30 is a petrol engine. It is a 3.0 liter (2,979 cc) inline 6, DOHC, 24 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.
What should I know about the BMW S54 engine?
BMW S54 3.2 engines from the E46 M3 and Z4 M. We list one version: S54B32 (3.2 liter (3,246 cc), 252 kW (343 HP), 2000 to 2008).
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 S54 family was used in chassis E46, E85 and E86. 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.
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.
Can you check if an S50B32 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 S50B32, we confirm that your car was built with this code or with a version that can take it. BMW used it in the BMW E36 M3, BMW E36 M3 Coupe and BMW E36 M3 Sedan.
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.
How much power and torque does the BMW S58B30 have?
From the factory the BMW S58B30 makes 353 kW (480 HP) and 600 Nm of torque. It is a 3.0 liter (2,993 cc) inline 6, DOHC, 24 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 S58B30 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.
How long does delivery of an S65B40 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.
What is the inspection certificate?
The inspection certificate is a sheet that records the unit that leaves our yard.
It notes that the engine or gearbox code was checked against the listing, that the parts were recorded as fitted, that the openings were sealed, and that the unit was photographed and packed with a tracking number.
You can ask for the certificate on any unit in the yard. It is sent with the order confirmation.
Many buyers keep it with the car's service papers.
What should I know about the BMW S65 engine?
BMW S65 4.0 V8 engines from the E90 and E92 M3. We list one version: S65B40 (4.0 liter (3,999 cc), 309 kW (420 HP), 2007 to 2013).
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 S65 family was used in chassis E90, E92 and E93. 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.
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.
- DPF — Diesel particulate filter. It traps soot and burns it off during regeneration, which needs longer journeys.
- EGR — Exhaust gas recirculation. It feeds some exhaust back into the intake to reduce NOx emissions but builds up soot.
- Swirl flaps — Flaps in the intake manifold that create swirl at low revs. On some BMW diesels they can break and enter the engine.
- Common rail — A diesel injection system with a high-pressure fuel rail feeding all injectors. It allows precise, multiple injections per cycle.
- 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.
- Rear-mounted timing chain — A timing chain at the gearbox end of the engine. Replacing it normally requires removing the engine.
- Timing belt — A rubber belt that drives the camshaft. It must be replaced on time to avoid valve damage.
- TU — Technical Update, BMW's suffix for a revised version of an engine.
Browse every engine in stock or ask the Hamburg desk — send your VIN and we will confirm the right engine the same day.
