BMW M88 and S38 engine: the complete buyer's guide

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.

• Production: 1978–1996
• Versions covered: M88, S38B35, S38B36 and S38B38
• Output range: 260–340 hp
• Fuel and layout: petrol inline-6
• Fitted to: 6 BMW models across 4 chassis generations
• In our stock now: 60 units from 2.837,00 € — browse all M88 and S38 engines

The M88 and S38 at a glance

The table lists every M88 and S38 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 260 to 340 hp. The spread reflects different capacities, tuning for different markets and the technical updates BMW made over 19 years of production.

History of the M88 and S38

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.

1978: the M88 arrived with 3.5 L and 286 hp in the BMW E28 M5, BMW E24 M635CSi and BMW M1.

1988: the S38B35 arrived with 3.5 L and 260 hp in the BMW E34 M5 3.5. It was a lower-output version for smaller or more economical models.

1992: the S38B36 arrived with 3.6 L and 315 hp in the BMW E34 M5 3.6. Compared with the S38B35, it added 55 hp.

1992: the S38B38 arrived with 3.8 L and 340 hp in the BMW E34 M5 3.8. Compared with the S38B36, it added 25 hp.

Every M88 and S38 version explained

M88 (3.5 L, 286 hp)

The M88 is a 3.5 L inline-6 petrol engine, naturally aspirated, rated at 286 hp and 340 Nm. BMW built it from 1978 to 1988. That is about 82 hp and 97 Nm per litre, a strong figure for a road engine of its era. Within the M88 and S38 family, the S38B36 (315 hp) and S38B38 (340 hp) are more powerful, while the S38B35 (260 hp) is milder. It was fitted to the BMW E28 M5, BMW E24 M635CSi and BMW M1.

S38B35 (3.5 L, 260 hp)

The S38B35 is a 3.5 L inline-6 petrol engine, naturally aspirated, rated at 260 hp and 330 Nm. BMW built it from 1988 to 1992. That is about 74 hp and 94 Nm per litre, a relaxed tune aimed at torque, durability and economy. Within the M88 and S38 family, the M88 (286 hp), S38B36 (315 hp) and S38B38 (340 hp) are more powerful. It was fitted to the BMW E34 M5 3.5.

Reading the code: S marks an S-series code, reserved for engines developed by BMW M; 38 is the family number; B stands for petrol (from the German Benzin); 35 is the capacity in decilitres, so 3.5 litres.

We have 3 S38B35 units in stock, priced from 6.141,00 € to 9.765,00 €.

S38B36 (3.6 L, 315 hp)

S38B36: 3.6 L, inline-6, petrol, naturally aspirated. Output is 315 hp with 360 Nm of torque, and production ran from 1992 to 1995. That is about 88 hp and 100 Nm per litre, a strong figure for a road engine of its era. Within the M88 and S38 family, the S38B38 (340 hp) is more powerful, while the M88 (286 hp) and S38B35 (260 hp) are milder. It was fitted to the BMW E34 M5 3.6. See every S38B36 in stock.

Reading the code: S marks an S-series code, reserved for engines developed by BMW M; 38 is the family number; B stands for petrol (from the German Benzin); 36 is the capacity in decilitres, so 3.6 litres.

We have 29 S38B36 units in stock, priced from 2.837,00 € to 10.716,00 €.

S38B38 (3.8 L, 340 hp)

S38B38: 3.8 L, inline-6, petrol, naturally aspirated. Output is 340 hp with 400 Nm of torque, and production ran from 1992 to 1996. That is about 89 hp and 105 Nm per litre, a strong figure for a road engine of its era. Within the M88 and S38 family, it is the most powerful version, while the M88 (286 hp), S38B35 (260 hp) and S38B36 (315 hp) are milder. It was fitted to the BMW E34 M5 3.8. See every S38B38 in stock.

Reading the code: S marks an S-series code, reserved for engines developed by BMW M; 38 is the family number; B stands for petrol (from the German Benzin); 38 is the capacity in decilitres, so 3.8 litres.

We have 28 S38B38 units in stock, priced from 7.281,00 € to 11.942,00 €.

Which cars use the M88 and S38

The M88 and S38 was fitted to 6 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 E28 second 5 Series (1981–1988)

In the second 5 Series, built 1981–1988 as a saloon, the M88 and S38 powered the M5 (M88, 286 hp).

The quickest way to confirm the right M88 and S38 for your E28 is to send us the VIN; we check the engine code, the gearbox and the drive type. We currently have 26 M88 and S38 units from E28 donor cars. All E28 engines in stock.

The M5 uses the M88. BMW M5 engines for sale.

BMW E24 first 6 Series (1976–1989)

In the first 6 Series, built 1976–1989 as a coupé, the M88 and S38 powered the M635CSi (M88, 286 hp).

The quickest way to confirm the right M88 and S38 for your E24 is to send us the VIN; we check the engine code, the gearbox and the drive type.

BMW M1 M1 supercar (1978–1981)

In the M1 supercar, built 1978–1981 as a coupé, the M88 and S38 powered the M1 (M88, 286 hp).

When ordering for an M1, 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.

BMW E34 third 5 Series (1988–1996)

In the third 5 Series, built 1988–1996 as a saloon, Touring, the M88 and S38 powered the M5 3.5 (S38B35, 260 hp), M5 3.6 (S38B36, 315 hp) and M5 3.8 (S38B38, 340 hp).

The quickest way to confirm the right M88 and S38 for your E34 is to send us the VIN; we check the engine code, the gearbox and the drive type. We currently have 29 M88 and S38 units from E34 donor cars. All E34 engines in stock.

The M5 3.5 uses the S38B35. BMW M5 engines for sale.

The M5 3.6 uses the S38B36. BMW M5 engines for sale.

The M5 3.8 uses the S38B38. BMW M5 engines for sale.

Will an M88 and S38 fit my BMW? Model-by-model answers

Short answers for every model that left the factory with an M88 and S38, with prices from our current stock.

Will the M88 fit my BMW E28 M5?

For the BMW E28 M5, the M88 is the factory engine and the one to order. The second 5 Series was built 1981–1988, and the M88 was produced 1978–1988, 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 E28 M5?

We do not have an M88 on the shelf for the E28 M5 at the moment. Units arrive regularly; send us your VIN and we will tell you when the next one is ready and what it will cost, including delivery.

Will the M88 fit my BMW E24 M635CSi?

Yes, the BMW E24 M635CSi left the factory with the M88, so an M88 from another car is the direct replacement. The first 6 Series was built 1976–1989, and the M88 was produced 1978–1988, 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 E24 M635CSi?

We do not have an M88 on the shelf for the E24 M635CSi at the moment. Units arrive regularly; send us your VIN and we will tell you when the next one is ready and what it will cost, including delivery.

Will the M88 fit my BMW M1 M1?

The M88 is the original engine for the BMW M1 M1, which makes it the straightforward choice. The M1 supercar was built 1978–1981, and the M88 was produced 1978–1988, 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 M1 M1?

We do not have an M88 on the shelf for the M1 M1 at the moment. Units arrive regularly; send us your VIN and we will tell you when the next one is ready and what it will cost, including delivery.

Will the S38B35 fit my BMW E34 M5 3.5?

Yes, the BMW E34 M5 3.5 left the factory with the S38B35, so an S38B35 from another car is the direct replacement. The third 5 Series was built 1988–1996, and the S38B35 was produced 1988–1992, 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 E34 M5 3.5?

We have 1 S38B35 engine from E34 donor cars, priced from 9.765,00 €. 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.

M88 and S38 model-year guide

Use this year-by-year guide to see which M88 and S38 versions were in production when your car was built.

1978 — M88 was in production. New this year: M88.

1979 — M88 was in production.

1980 — M88 was in production.

1981 — M88 was in production.

1982 — M88 was in production.

1983 — M88 was in production.

1984 — M88 was in production.

1985 — M88 was in production.

1986 — M88 was in production.

1987 — M88 was in production.

1988 — M88 and S38B35 were in production. New this year: S38B35. Last year for M88.

1989 — S38B35 was in production.

1990 — S38B35 was in production.

1991 — S38B35 was in production.

1992 — S38B35, S38B36 and S38B38 were in production. New this year: S38B36 and S38B38. Last year for S38B35.

1993 — S38B36 and S38B38 were in production.

1994 — S38B36 and S38B38 were in production.

1995 — S38B36 and S38B38 were in production. Last year for S38B36.

1996 — S38B38 was in production. Last year for S38B38.

Common M88 and S38 problems and what to check

No engine is perfect. These are the faults our workshop sees most often on the M88 and S38, what causes them and how to check a used unit before you buy.

Valve clearances

Shim-type valve gear needs regular checks; neglected engines burn exhaust valves.

How to check: Ask for the last clearance check.

Timing chain guides

The duplex chain lasts, but guides and tensioners wear.

How to check: Listen for start-up rattle at the front.

Oil pump drive nut

Many owners safety-wire the oil pump sprocket nut as a preventive measure.

How to check: Ask if the oil pump nut has been secured.

Throttle bodies and sensors

ITB linkages, air flow meters and idle valves age and cause uneven running.

How to check: Check for smooth idle and even cylinder balance.

Diagnosing a failing M88 and S38: 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 M88 and S38 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.

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 M88 and S38?

As a rule, bolt-on faults are worth repairing and internal damage is not. Seals, sensors, coils, injectors, pumps and turbos can be replaced in the car. Once the bearings, crankshaft, bores or head of an M88 and S38 are damaged, a used engine is usually cheaper and quicker than a rebuild.

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.

M88 and S38 maintenance and running costs

The 3.8 litre S38B38 uses a dual-mass flywheel; check its condition when buying a complete unit.

Shorter oil intervals than the factory maximum are the cheapest insurance for an M88 and S38. Most of the expensive faults on BMW engines start with tired oil.

Buying a used M88 and S38: the full checklist

Work through these points before you order a used M88 and S38, 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. 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.
12. 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.
13. Originality and numbers. For collectible cars, the engine number and correct ancillaries add value. Photograph the stamp and keep it with the car's documents.

M88 and S38 prices: what you should pay

Our M88 and S38 stock runs to 60 units, priced from 2.837,00 € to 11.942,00 € with a median of 8.302,00 €.

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.

M88 and S38 prices by model year

Engines from 1985–1989 have a median of 8.490,00 €, while units from 1995–1999 sit at 9.413,00 €. Newer engines usually cost more because they come from younger donor cars with lower mileage and later updates.

M88 and S38 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.

M88 and S38 engines in stock now

These M88 and S38 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 E28 M5 S38B36 Engine 1991, 115,800 km7.444,00 €BMW E28 M5 S38B36 Engine 1992, 179,700 km6.761,00 €BMW E34 M5 3.8 S38B38 Engine 1993, 130,900 km9.170,00 €BMW E34 M5 3.8 S38B38 Engine 1991, 130,700 km7.377,00 €BMW E28 M5 S38B36 Engine 1992, 27,600 km8.325,00 €BMW E28 M5 S38B36 Engine 1990, 54,700 km7.018,00 €BMW E28 M5 S38B36 Engine 1989, 66,000 km8.850,00 €BMW E34 M5 3.8 S38B38 Engine 1992, 107,000 km7.631,00 €BMW E28 M5 S38B36 Engine 1992, 135,400 km8.979,00 €BMW E28 M5 S38B36 Engine 1990, 45,400 km8.151,00 €BMW E34 M5 3.8 S38B38 Engine 1993, 36,300 km7.541,00 €BMW E34 M5 3.8 S38B38 Engine 1994, 57,400 km8.749,00 €

BMW E28 M5 S38B36 Engine 1991, 115,800 km — 7.444,00 €, reduced from 8.300,00 €. It comes from a 1991 donor car with 115,800 km, and 17 units are available. The listing shows every side of the engine and the fitted parts.

BMW E28 M5 S38B36 Engine 1992, 179,700 km — 6.761,00 €, reduced from 7.950,00 €. It comes from a 1992 donor car with 179,700 km, and 25 units are available. Ask the desk for compression figures or extra photographs before you order.

BMW E34 M5 3.8 S38B38 Engine 1993, 130,900 km — 9.170,00 €, reduced from 10.650,00 €. It comes from a 1993 donor car with 130,900 km, and 16 units are available. Ask the desk for compression figures or extra photographs before you order.

BMW E34 M5 3.8 S38B38 Engine 1991, 130,700 km — 7.377,00 €, reduced from 8.400,00 €. It comes from a 1991 donor car with 130,700 km, and 19 units are available. The listing shows every side of the engine and the fitted parts.

BMW E28 M5 S38B36 Engine 1992, 27,600 km — 8.325,00 €, reduced from 9.300,00 €. It comes from a 1992 donor car with 27,600 km, and 21 units are available. We can confirm fitment against your VIN the same day.

BMW E28 M5 S38B36 Engine 1990, 54,700 km — 7.018,00 €, reduced from 8.350,00 €. It comes from a 1990 donor car with 54,700 km, and 12 units are available. We can confirm fitment against your VIN the same day.

BMW E28 M5 S38B36 Engine 1989, 66,000 km — 8.850,00 €, reduced from 9.900,00 €. It comes from a 1989 donor car with 66,000 km, and 21 units are available. The listing shows every side of the engine and the fitted parts.

BMW E34 M5 3.8 S38B38 Engine 1992, 107,000 km — 7.631,00 €, reduced from 8.700,00 €. It comes from a 1992 donor car with 107,000 km, and 23 units are available. The listing shows every side of the engine and the fitted parts.

BMW E28 M5 S38B36 Engine 1992, 135,400 km — 8.979,00 €, reduced from 9.950,00 €. It comes from a 1992 donor car with 135,400 km, and 18 units are available. We can confirm fitment against your VIN the same day.

BMW E28 M5 S38B36 Engine 1990, 45,400 km — 8.151,00 €, reduced from 9.150,00 €. It comes from a 1990 donor car with 45,400 km, and 20 units are available. The listing shows every side of the engine and the fitted parts.

BMW E34 M5 3.8 S38B38 Engine 1993, 36,300 km — 7.541,00 €, reduced from 8.200,00 €. It comes from a 1993 donor car with 36,300 km, and 8 units are available. We can confirm fitment against your VIN the same day.

BMW E34 M5 3.8 S38B38 Engine 1994, 57,400 km — 8.749,00 €, reduced from 9.400,00 €. It comes from a 1994 donor car with 57,400 km, and 27 units are available. We can confirm fitment against your VIN the same day.

Fitting a replacement M88 and S38

These are the steps we recommend to every workshop fitting one of our M88 and S38 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. 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.
8. 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.
9. 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.
10. 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.
11. 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

Builders fit S38B38 cranks into 3.6 litre engines, and many E30 or E34 projects use an S38 with motorsport camshafts. Keep receipts; buyers expect them.

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.

M88 and S38 compared with similar BMW engines

Buyers often compare the M88 and S38 with these engines. Here is how they line up.

The S54 reaches higher outputs (up to 343 hp against 340 hp) and uses duplex chain at the front driving both camshafts. Its best-known faults are rod bearings and vanos unit. Read the S54 guide.

The S65 reaches higher outputs (up to 420 hp against 340 hp) and uses timing chains, one per bank. Its best-known faults are rod bearings and throttle actuators. Read the S65 guide.

The S50 and S52 is milder (up to 321 hp against 340 hp) and uses duplex and single timing chains at the front. Its best-known faults are oil pump nut and vanos (s50b32). Read the S50 and S52 guide.

Delivery, warranty and payment

Every M88 and S38 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.

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 M88 and S38 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 M88 and S38

Will the S38B36 engine fit my BMW E28 M5?

Yes, if your BMW E28 M5 was built with the S38B36. BMW used this 3.6 liter (3,535 cc) petrol engine with 232 kW (315 HP) in the E28 M5 from about 1988 to 1992.

Some E28 M5 cars were built with a different engine: the M30B34. These look alike from the outside, so check the code on your engine or send us your VIN.

Also tell us if your E28 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 S38 Engines · Search S38B36 in the shop

How much is a replacement S38B36 engine for a BMW E28 M5?

A used S38B36 for the BMW E28 M5 costs from about 6.000 € to 9.200 € in our yard. The price depends on the year, the mileage and the parts that come with the engine.

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

A replacement engine is often much cheaper than rebuilding a damaged one, and much faster. The S38B36 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 S38 Engines · Search S38B36 in the shop

Will the S38B38 engine fit my BMW E34 M5 3.8?

Yes, if your BMW E34 M5 3.8 was built with the S38B38. BMW used this 3.8 liter (3,795 cc) petrol engine with 250 kW (340 HP) in the E34 M5 3.8 from about 1991 to 1995.

In our records the S38B38 is the engine for the E34 M5 3.8, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Also tell us if your E34 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 S38 Engines · Search S38B38 in the shop

How much is a replacement S38B38 engine for a BMW E34 M5 3.8?

A used S38B38 for the BMW E34 M5 3.8 costs from about 7.000 € to 10.700 € 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 S38B38 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 S38 Engines · Search S38B38 in the shop

Will the S38B38 engine fit my BMW E34 M5 Touring?

Yes, if your BMW E34 M5 Touring was built with the S38B38. BMW used this 3.8 liter (3,795 cc) petrol engine with 250 kW (340 HP) in the E34 M5 Touring from about 1991 to 1995.

In our records the S38B38 is the engine for the E34 M5 Touring, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Also tell us if your E34 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 S38 Engines · Search S38B38 in the shop

How much is a replacement S38B38 engine for a BMW E34 M5 Touring?

A used S38B38 for the BMW E34 M5 Touring costs from about 7.000 € to 10.700 € 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 S38B38 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 S38 Engines · Search S38B38 in the shop

Will the S38B36 engine fit my BMW E34 M5 3.6?

Yes, if your BMW E34 M5 3.6 was built with the S38B36. BMW used this 3.6 liter (3,535 cc) petrol engine with 232 kW (315 HP) in the E34 M5 3.6 from about 1988 to 1992.

In our records the S38B36 is the engine for the E34 M5 3.6, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Also tell us if your E34 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 S38 Engines · Search S38B36 in the shop

How much is a replacement S38B36 engine for a BMW E34 M5 3.6?

A used S38B36 for the BMW E34 M5 3.6 costs from about 6.000 € to 9.200 € in our yard. The price depends on the year, the mileage and the parts that come with the engine.

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

A replacement engine is often much cheaper than rebuilding a damaged one, and much faster. The S38B36 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 S38 Engines · Search S38B36 in the shop

What is the BMW S38B38 engine?

The BMW S38B38 is a 3.8 liter (3,795 cc) petrol engine from the S38 family. It has an inline 6, DOHC, 24 valve layout with no turbo (naturally aspirated), and makes 250 kW (340 HP) with 400 Nm of torque. BMW built it from 1991 to 1995 and it meets the Euro 1 emission standard.

You find the S38B38 in the BMW E34 M5 3.8 and BMW E34 M5 Touring. What we list: BMW S38 engines from the E28 M5 and E34 M5.

At Autowerke Engines every S38B38 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 S38 Engines · Search S38B38 in the shop

How much does a used BMW S38B38 engine cost?

A used BMW S38B38 engine in our yard usually costs between 7.000 € and 10.700 €. 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 S38 Engines · Search S38B38 in the shop

Which cars use the BMW S38B38 engine?

BMW fitted the S38B38 to the BMW E34 M5 3.8 and BMW E34 M5 Touring. These cars were built with this engine from about 1991 to 1995.

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.

Other engines in the same S38 family are the S38B36 (315 HP). They look alike but differ in power, parts and electronics, so they are not always a direct swap.

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 S38 Engines · Search S38B38 in the shop

How much power and torque does the BMW S38B38 have?

From the factory the BMW S38B38 makes 250 kW (340 HP) and 400 Nm of torque. It is a 3.8 liter (3,795 cc) inline 6, DOHC, 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 S38B38 on our site lists its year and mileage. If you want more photos or a short video of a unit, ask the desk and we send them before you pay.

See all S38 Engines · Search S38B38 in the shop

How do I know a used S38B38 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. 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 S38B38, 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 S38 Engines · Search S38B38 in the shop

What comes with a used S38B38 engine?

Each S38B38 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 S38 Engines · Search S38B38 in the shop

Is the BMW S38B38 a diesel or petrol engine?

The S38B38 is a petrol engine. It is a 3.8 liter (3,795 cc) inline 6, DOHC, 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 S38 Engines · Search S38B38 in the shop

What is the difference between the S38B38 and other S38 engines?

The S38B38 makes 250 kW (340 HP) and 400 Nm. The other S38 engines are: S38B36 with 232 kW (315 HP) and 360 Nm (1988 to 1992).

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 S38 Engines · Search S38B38 in the shop

How long does delivery of an S38B38 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 S38 Engines · Search S38B38 in the shop

What should I replace when I fit a used S38B38 engine?

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

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

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

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

See all S38 Engines · Search S38B38 in the shop

Does a used S38B38 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 S38 Engines · Search S38B38 in the shop

Can you check if an S38B38 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 S38B38, we confirm that your car was built with this code or with a version that can take it. BMW used it in the BMW E34 M5 3.8 and BMW E34 M5 Touring.

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 S38 Engines · Search S38B38 in the shop

What is the BMW S38B36 engine?

The BMW S38B36 is a 3.6 liter (3,535 cc) petrol engine from the S38 family. It has an inline 6, DOHC, 24 valve layout with no turbo (naturally aspirated), and makes 232 kW (315 HP) with 360 Nm of torque. BMW built it from 1988 to 1992 and it meets the Euro 1 emission standard.

You find the S38B36 in the BMW E34 M5 3.6 and BMW E28 M5. What we list: BMW S38 engines from the E28 M5 and E34 M5.

At Autowerke Engines every S38B36 is a real used engine from our yard in Hamburg. The photos on each listing show the actual engine, not a stock picture. The yard checks the code, records what is bolted on, and seals the openings before the engine is offered. Each listing shows the year, the mileage and the price, so you can compare units side by side.

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

See all S38 Engines · Search S38B36 in the shop

How much does a used BMW S38B36 engine cost?

A used BMW S38B36 engine in our yard usually costs between 6.000 € and 9.200 €. The exact price depends on the year, the mileage and the parts that come with the engine.

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

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

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

See all S38 Engines · Search S38B36 in the shop

Which cars use the BMW S38B36 engine?

BMW fitted the S38B36 to the BMW E34 M5 3.6 and BMW E28 M5. These cars were built with this engine from about 1988 to 1992.

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.

Other engines in the same S38 family are the S38B38 (340 HP). They look alike but differ in power, parts and electronics, so they are not always a direct swap.

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 S38 Engines · Search S38B36 in the shop

How much power and torque does the BMW S38B36 have?

From the factory the BMW S38B36 makes 232 kW (315 HP) and 360 Nm of torque. It is a 3.6 liter (3,535 cc) inline 6, DOHC, 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 S38B36 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 S38 Engines · Search S38B36 in the shop

How do I know a used S38B36 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. 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 S38B36, 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 S38 Engines · Search S38B36 in the shop

What comes with a used S38B36 engine?

Each S38B36 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 S38 Engines · Search S38B36 in the shop

Is the BMW S38B36 a diesel or petrol engine?

The S38B36 is a petrol engine. It is a 3.6 liter (3,535 cc) inline 6, DOHC, 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 S38 Engines · Search S38B36 in the shop

What is the difference between the S38B36 and other S38 engines?

The S38B36 makes 232 kW (315 HP) and 360 Nm. The other S38 engines are: S38B38 with 250 kW (340 HP) and 400 Nm (1991 to 1995).

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 S38 Engines · Search S38B36 in the shop

How long does delivery of an S38B36 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 S38 Engines · Search S38B36 in the shop

What should I replace when I fit a used S38B36 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.

See all S38 Engines · Search S38B36 in the shop

Does a used S38B36 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 S38 Engines · Search S38B36 in the shop

Can you check if an S38B36 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 S38B36, we confirm that your car was built with this code or with a version that can take it. BMW used it in the BMW E34 M5 3.6 and BMW E28 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 S38 Engines · Search S38B36 in the shop

What is the difference between the BMW S38 engines?

BMW S38 engines from the E28 M5 and E34 M5. We list 2 versions: S38B38 (3.8 liter (3,795 cc), 250 kW (340 HP), 1991 to 1995); S38B36 (3.6 liter (3,535 cc), 232 kW (315 HP), 1988 to 1992).

The versions share the same basic design, but the power, the turbo or injection set-up, the electronics and the emission standard change. The right one for you is the one your car was built with.

The S38 family was used in chassis E34 and E28. Each engine in the yard is inspected in Hamburg. The code is matched to the listing, the parts on the engine are recorded, the openings are sealed and the real unit is photographed.

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

See all S38 Engines

What should I check on a used BMW S38 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 S38 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 S38 Engines · Inspection certificate

Which years were BMW S38 engines made?

BMW built the S38 engines we list from about 1988 to 1995. The S38B38 ran from 1991 to 1995. The S38B36 ran from 1988 to 1992.

They went into chassis E34 and E28. 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 S38 Engines

Glossary

• 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 M88 and S38 has a clear set of strengths and a known list of weak points. 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 M88 and S38 will give years of service.

Ready to order, or need help choosing? Browse every M88 and S38 in stock, contact the Hamburg desk or send us your VIN on WhatsApp.

Guides to each M88 and S38 version

• BMW S38B35 engine: specs, problems and prices
• BMW S38B36 engine: specs, problems and prices
• BMW S38B38 engine: specs, problems and prices