BMW S85 engine: the complete buyer's guide

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.

• Production: 2005–2010
• Versions covered: S85B50
• Output range: 507–507 hp
• Fuel and layout: petrol V10
• Fitted to: 4 BMW models across 4 chassis generations
• In our stock now: 57 units from 9.122,00 € — browse all S85 engines

The S85 at a glance

The table lists every S85 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 1 versions, output runs from 507 to 507 hp. The spread reflects different capacities, tuning for different markets and the technical updates BMW made over 6 years of production.

History of the S85

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.

2005: the S85B50 arrived with 5.0 L and 507 hp in the BMW E60 M5, BMW E61 M5 and BMW E63 M6.

Every S85 version explained

S85B50 (5.0 L, 507 hp)

The S85B50 is a 5.0 L V10 petrol engine, naturally aspirated, rated at 507 hp and 520 Nm. BMW built it from 2005 to 2010. That is about 101 hp and 104 Nm per litre, a strong figure for a road engine of its era. It was fitted to the BMW E60 M5, BMW E61 M5, BMW E63 M6 and BMW E64 M6. See every S85B50 in stock.

Reading the code: S marks an S-series code, reserved for engines developed by BMW M; 85 is the family number; B stands for petrol (from the German Benzin); 50 is the capacity in decilitres, so 5.0 litres.

We have 57 S85B50 units in stock, priced from 9.122,00 € to 13.450,00 €.

Which cars use the S85

The S85 was fitted to 4 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 E60 fifth 5 Series (2003–2010)

In the fifth 5 Series, built 2003–2010 as a saloon, the S85 powered the M5 (S85B50, 507 hp).

For an E60, confirm the production date as well as the model: BMW often changed engine versions at the mid-life update. We currently have 15 S85 units from E60 donor cars. All E60 engines in stock.

The M5 uses the S85B50. BMW M5 engines for sale.

BMW E61 fifth 5 Series Touring (2004–2010)

In the fifth 5 Series Touring, built 2004–2010 as a Touring, the S85 powered the M5 (S85B50, 507 hp).

For an E61, confirm the production date as well as the model: BMW often changed engine versions at the mid-life update. We currently have 14 S85 units from E61 donor cars. All E61 engines in stock.

The M5 uses the S85B50. BMW M5 engines for sale.

BMW E63 second 6 Series coupé (2003–2010)

In the second 6 Series coupé, built 2003–2010 as a coupé, the S85 powered the M6 (S85B50, 507 hp).

When ordering for an E63, check whether the car is rear-drive or xDrive and whether it has a manual or automatic gearbox, because the sump and flywheel can differ. We currently have 14 S85 units from E63 donor cars. All E63 engines in stock.

The M6 uses the S85B50. BMW M6 engines for sale.

BMW E64 second 6 Series convertible (2004–2010)

In the second 6 Series convertible, built 2004–2010 as a convertible, the S85 powered the M6 (S85B50, 507 hp).

For an E64, confirm the production date as well as the model: BMW often changed engine versions at the mid-life update. We currently have 14 S85 units from E64 donor cars. All E64 engines in stock.

The M6 uses the S85B50. BMW M6 engines for sale.

Will an S85 fit my BMW? Model-by-model answers

Short answers for every model that left the factory with an S85, with prices from our current stock.

S85 model-year guide

Use this year-by-year guide to see which S85 versions were in production when your car was built.

2005 — S85B50 was in production. New this year: S85B50.

2006 — S85B50 was in production.

2007 — S85B50 was in production.

2008 — S85B50 was in production.

2009 — S85B50 was in production.

2010 — S85B50 was in production. Last year for S85B50.

Common S85 problems and what to check

No engine is perfect. These are the faults our workshop sees most often on the S85, what causes them and how to check a used unit before you buy.

Rod bearings

Rod bearing wear is the S85's best-known issue. Preventive replacement is standard practice.

How to check: Ask for the bearing replacement date and use oil analysis.

Throttle actuators

The two throttle actuators fail and cause limp mode.

How to check: Read throttle fault codes.

High-pressure VANOS

The VANOS pump and solenoids fail and cause codes and loss of power.

How to check: Read VANOS fault codes.

Oil leaks

Oil pan and valve cover gaskets leak.

How to check: Check below the sump and around the heads.

Diagnosing a failing S85: 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 S85 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.

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

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 S85?

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 S85 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.

S85 maintenance and running costs

Fit new rod bearings when fitting a used S85 unless they were recently replaced.

Shorter oil intervals than the factory maximum are the cheapest insurance for an S85. Most of the expensive faults on BMW engines start with tired oil.

Buying a used S85: the full checklist

Work through these points before you order a used S85, 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. 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.
13. 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.
14. 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.
15. Both cylinder banks. On the V10, check both banks separately for compression, throttle actuator faults and VANOS codes.

S85 prices: what you should pay

We currently hold 57 S85 engines. The cheapest is 9.122,00 €, the most expensive 13.450,00 €, and half of them cost less than 10.924,00 €.

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.

S85 prices by model year

Engines from 2005–2009 have a median of 10.809,00 €, while units from 2010–2014 sit at 11.539,00 €. Newer engines usually cost more because they come from younger donor cars with lower mileage and later updates.

S85 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.

S85 engines in stock now

Here is a selection of S85 engines currently on our shelves, photographed in the yard. Click any of them for the full photographs, mileage and specification.

BMW E64 M6 S85B50 Engine 2006, 180,600 km11.520,00 €BMW E63 M6 S85B50 Engine 2008, 30,100 km9.506,00 €BMW E63 M6 S85B50 Engine 2007, 122,700 km10.414,00 €BMW E60 M5 S85B50 Engine 2009, 44,800 km10.429,00 €BMW E64 M6 S85B50 Engine 2006, 121,300 km10.809,00 €BMW E63 M6 S85B50 Engine 2006, 63,300 km9.122,00 €BMW E60 M5 S85B50 Engine 2010, 58,700 km11.539,00 €BMW E61 M5 S85B50 Engine 2006, 85,300 km9.484,00 €BMW E64 M6 S85B50 Engine 2010, 70,900 km11.499,00 €BMW E63 M6 S85B50 Engine 2009, 53,200 km11.439,00 €BMW E61 M5 S85B50 Engine 2006, 199,800 km10.015,00 €BMW E61 M5 S85B50 Engine 2008, 59,300 km10.702,00 €

BMW E64 M6 S85B50 Engine 2006, 180,600 km — 11.520,00 €, reduced from 12.950,00 €. It comes from a 2006 donor car with 180,600 km, and 26 units are available. Ask the desk for compression figures or extra photographs before you order.

BMW E63 M6 S85B50 Engine 2008, 30,100 km — 9.506,00 €, reduced from 10.800,00 €. It comes from a 2008 donor car with 30,100 km, and 24 units are available. Ask the desk for compression figures or extra photographs before you order.

BMW E63 M6 S85B50 Engine 2007, 122,700 km — 10.414,00 €, reduced from 11.400,00 €. It comes from a 2007 donor car with 122,700 km, and 19 units are available. The listing shows every side of the engine and the fitted parts.

BMW E60 M5 S85B50 Engine 2009, 44,800 km — 10.429,00 €, reduced from 11.200,00 €. It comes from a 2009 donor car with 44,800 km, and 9 units are available. Ask the desk for compression figures or extra photographs before you order.

BMW E64 M6 S85B50 Engine 2006, 121,300 km — 10.809,00 €, reduced from 11.550,00 €. It comes from a 2006 donor car with 121,300 km, and 15 units are available. We can confirm fitment against your VIN the same day.

BMW E63 M6 S85B50 Engine 2006, 63,300 km — 9.122,00 €, reduced from 10.150,00 €. It comes from a 2006 donor car with 63,300 km, and 18 units are available. We can confirm fitment against your VIN the same day.

BMW E60 M5 S85B50 Engine 2010, 58,700 km — 11.539,00 €, reduced from 12.500,00 €. It comes from a 2010 donor car with 58,700 km, and 8 units are available. We can confirm fitment against your VIN the same day.

BMW E61 M5 S85B50 Engine 2006, 85,300 km — 9.484,00 €, reduced from 10.300,00 €. It comes from a 2006 donor car with 85,300 km, and 21 units are available. The listing shows every side of the engine and the fitted parts.

BMW E64 M6 S85B50 Engine 2010, 70,900 km — 11.499,00 €, reduced from 12.350,00 €. It comes from a 2010 donor car with 70,900 km, and 28 units are available. Ask the desk for compression figures or extra photographs before you order.

BMW E63 M6 S85B50 Engine 2009, 53,200 km — 11.439,00 €, reduced from 12.800,00 €. It comes from a 2009 donor car with 53,200 km, and 30 units are available. We can confirm fitment against your VIN the same day.

BMW E61 M5 S85B50 Engine 2006, 199,800 km — 10.015,00 €, reduced from 11.100,00 €. It comes from a 2006 donor car with 199,800 km, and 15 units are available. We can confirm fitment against your VIN the same day.

BMW E61 M5 S85B50 Engine 2008, 59,300 km — 10.702,00 €, reduced from 11.750,00 €. It comes from a 2008 donor car with 59,300 km, and 20 units are available. We can confirm fitment against your VIN the same day.

Fitting a replacement S85

These are the steps we recommend to every workshop fitting one of our S85 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. Reset VANOS adaptations. Clear the VANOS adaptations so the ECU learns the camshaft positions of the new engine.
11. 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.
12. 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

Exhausts and remaps add modest gains. Most owners keep the S85 standard.

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.

S85 compared with similar BMW engines

Buyers often compare the S85 with these engines. Here is how they line up.

The S62 is milder (up to 400 hp against 507 hp) and uses timing chains, one per bank, with guides and tensioners. Its best-known faults are timing chain guides and vanos. Read the S62 guide.

The S63 reaches higher outputs (up to 625 hp against 507 hp) and uses timing chains, one per bank. Its best-known faults are rod bearings and injectors. Read the S63 guide.

The S68 reaches higher outputs (up to 585 hp against 507 hp) and uses timing chains. Its best-known faults are limited history and accident damage. Read the S68 guide.

Delivery, warranty and payment

Before an S85 engine leaves our Hamburg yard it is drained of oil and coolant, every opening is sealed, and it is strapped to a pallet and wrapped. We send photographs of the packed unit and the tracking details.

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

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 S85 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 S85

Will the S85B50 engine fit my BMW E60 M5?

Yes, if your BMW E60 M5 was built with the S85B50. BMW used this 5.0 liter (4,999 cc) petrol engine with 373 kW (507 HP) in the E60 M5 from about 2005 to 2010.

In our records the S85B50 is the engine for the E60 M5, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Also tell us if your E60 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 S85 Engines · Search S85B50 in the shop

How much is a replacement S85B50 engine for a BMW E60 M5?

A used S85B50 for the BMW E60 M5 costs from about 9.050 € to 13.700 € 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 S85B50 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 S85 Engines · Search S85B50 in the shop

Will the S85B50 engine fit my BMW E61 M5?

Yes, if your BMW E61 M5 was built with the S85B50. BMW used this 5.0 liter (4,999 cc) petrol engine with 373 kW (507 HP) in the E61 M5 from about 2005 to 2010.

In our records the S85B50 is the engine for the E61 M5, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Also tell us if your E61 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 S85 Engines · Search S85B50 in the shop

How much is a replacement S85B50 engine for a BMW E61 M5?

A used S85B50 for the BMW E61 M5 costs from about 9.050 € to 13.700 € 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 S85B50 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 S85 Engines · Search S85B50 in the shop

Will the S85B50 engine fit my BMW E63 M6?

Yes, if your BMW E63 M6 was built with the S85B50. BMW used this 5.0 liter (4,999 cc) petrol engine with 373 kW (507 HP) in the E63 M6 from about 2005 to 2010.

In our records the S85B50 is the engine for the E63 M6, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Also tell us if your E63 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 S85 Engines · Search S85B50 in the shop

How much is a replacement S85B50 engine for a BMW E63 M6?

A used S85B50 for the BMW E63 M6 costs from about 9.050 € to 13.700 € 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 S85B50 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 S85 Engines · Search S85B50 in the shop

Will the S85B50 engine fit my BMW E64 M6?

Yes, if your BMW E64 M6 was built with the S85B50. BMW used this 5.0 liter (4,999 cc) petrol engine with 373 kW (507 HP) in the E64 M6 from about 2005 to 2010.

In our records the S85B50 is the engine for the E64 M6, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Also tell us if your E64 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 S85 Engines · Search S85B50 in the shop

How much is a replacement S85B50 engine for a BMW E64 M6?

A used S85B50 for the BMW E64 M6 costs from about 9.050 € to 13.700 € 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 S85B50 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 S85 Engines · Search S85B50 in the shop

What is the BMW S85B50 engine?

The BMW S85B50 is a 5.0 liter (4,999 cc) petrol engine from the S85 family. It has a V10, DOHC, 40 valve layout with no turbo (naturally aspirated), and makes 373 kW (507 HP) with 520 Nm of torque. BMW built it from 2005 to 2010 and it meets the Euro 4 emission standard.

You find the S85B50 in the BMW E60 M5, BMW E61 M5, BMW E63 M6 and BMW E64 M6. What we list: BMW S85 5.0 V10 engines from the E60 M5 and E63 M6.

At Autowerke Engines every S85B50 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 S85 Engines · Search S85B50 in the shop

How much does a used BMW S85B50 engine cost?

A used BMW S85B50 engine in our yard usually costs between 9.050 € and 13.700 €. 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 S85 Engines · Search S85B50 in the shop

Which cars use the BMW S85B50 engine?

BMW fitted the S85B50 to the BMW E60 M5, BMW E61 M5, BMW E63 M6 and BMW E64 M6. These cars were built with this engine from about 2005 to 2010.

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 S85B50 is the only S85 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 S85 Engines · Search S85B50 in the shop

How much power and torque does the BMW S85B50 have?

From the factory the BMW S85B50 makes 373 kW (507 HP) and 520 Nm of torque. It is a 5.0 liter (4,999 cc) V10, DOHC, 40 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 S85B50 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 S85 Engines · Search S85B50 in the shop

How do I know a used S85B50 engine is in good shape?

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

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

On a petrol engine like the S85B50, 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 S85 Engines · Search S85B50 in the shop

What comes with a used S85B50 engine?

Each S85B50 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 S85 Engines · Search S85B50 in the shop

Is the BMW S85B50 a diesel or petrol engine?

The S85B50 is a petrol engine. It is a 5.0 liter (4,999 cc) V10, DOHC, 40 valve unit with no turbo (naturally aspirated), and it was built to the Euro 4 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 S85 Engines · Search S85B50 in the shop

Are there other versions of the BMW S85B50?

In our yard the S85B50 is the only listed version of the S85 family. It makes 373 kW (507 HP) and 520 Nm, and was built from 2005 to 2010.

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 S85 Engines · Search S85B50 in the shop

How long does delivery of an S85B50 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 S85 Engines · Search S85B50 in the shop

What should I replace when I fit a used S85B50 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 S85 Engines · Search S85B50 in the shop

Does a used S85B50 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 S85 Engines · Search S85B50 in the shop

Can you check if an S85B50 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 S85B50, we confirm that your car was built with this code or with a version that can take it. BMW used it in the BMW E60 M5, BMW E61 M5, BMW E63 M6 and BMW E64 M6.

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 S85 Engines · Search S85B50 in the shop

What should I know about the BMW S85 engine?

BMW S85 5.0 V10 engines from the E60 M5 and E63 M6. We list one version: S85B50 (5.0 liter (4,999 cc), 373 kW (507 HP), 2005 to 2010).

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 S85 family was used in chassis E60, E61, E63 and E64. Before a unit is listed, the yard checks the engine code against the listing, writes down the parts fitted to it, seals every opening and photographs the real engine you will receive.

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

See all S85 Engines

What should I check on a used BMW S85 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 S85 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 S85 Engines · Inspection certificate

Which years were BMW S85 engines made?

BMW built the S85 engines we list from about 2005 to 2010. The S85B50 ran from 2005 to 2010.

They went into chassis E60, E61, E63 and E64. 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 S85 Engines

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.

Which payment methods do you accept?

You can pay by Visa, Mastercard or American Express through a secure link we email after you order. You can also pay by SEPA bank transfer, USDT or Bitcoin.

iDEAL, Bancontact and other local methods are offered based on your delivery country.

Approved workshops and fleet operators can order on 30-day terms.

Every payment runs over an encrypted connection, and we never see or store your card details.

How long does engine delivery to Czechia take?

Delivery from our Hamburg yard to Czechia takes 2 to 5 working days after dispatch. Orders confirmed before 14:00 CET on a working day leave Hamburg the same day. Later and weekend orders leave the next working day.

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.

Czechia is in the EU customs area for this shipment, so there is no import duty and no customs paperwork.

The carrier delivers to the kerb or a loading bay. Please have a forklift, a pallet truck or an engine crane ready, and check the wrapping before you sign.

How long does engine delivery to Latvia take?

Delivery from our Hamburg yard to Latvia takes 2 to 5 working days after dispatch. Orders confirmed before 14:00 CET on a working day leave Hamburg the same day. Later and weekend orders leave the next working day.

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.

Latvia is in the EU customs area for this shipment, so there is no import duty and no customs paperwork.

The carrier delivers to the kerb or a loading bay. Please have a forklift, a pallet truck or an engine crane ready, and check the wrapping before you sign.

Can I reserve an engine before I pay?

Yes. Once your order is placed, the unit is held for you while the payment comes in.

With a bank transfer, we hold the unit for five working days while the money clears. With USDT or Bitcoin, the unit stays reserved until the transfer is confirmed.

If you need more time, talk to the desk. We are flexible for workshops and repeat customers.

We only reserve an engine once we know it fits, so send your VIN first if you are not sure.

How fast does my order leave the yard?

Orders confirmed before 14:00 CET on a working day leave Hamburg the same day. Later and weekend orders leave the next working day.

You get a tracking number as soon as the carrier collects the pallet.

Delivery inside Western Europe usually takes 1 to 5 working days.

If you need the engine by a certain date, tell us when you order. We plan the dispatch around it.

How long does engine delivery to Luxembourg take?

Delivery from our Hamburg yard to Luxembourg takes 1 to 3 working days after dispatch. Orders confirmed before 14:00 CET on a working day leave Hamburg the same day. Later and weekend orders leave the next working day.

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.

Luxembourg is in the EU customs area for this shipment, so there is no import duty and no customs paperwork.

The carrier delivers to the kerb or a loading bay. Please have a forklift, a pallet truck or an engine crane ready, and check the wrapping before you sign.

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.

Is it safe to pay by card?

Yes. Card payments are handled by trusted payment providers with industry-standard encryption.

You never type your card number on our site. We email you a secure payment link after you place the order, and 3-D Secure applies.

Payment is taken when the order is confirmed.

We do not store any card details.

How do I find the engine code of my car?

The engine code is stamped on the engine block. On most BMW engines it sits on the side of the block, near the base of the cylinder head or by the oil filter housing.

It is also on many registration papers, and a dealer or a parts shop can read it from your VIN.

The easiest way is to send us your VIN. We read the engine code for you and tell you which engine fits.

Never order by the badge on the boot alone. The same model name can hide two different engines.

How long does engine delivery to the Canary Islands take?

Delivery from our Hamburg yard to the Canary Islands takes 4 to 8 working days after dispatch. Orders confirmed before 14:00 CET on a working day leave Hamburg the same day. Later and weekend orders leave the next working day.

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.

The Canary Islands is in the EU customs area for this shipment, so there is no import duty and no customs paperwork.

The carrier delivers to the kerb or a loading bay. Please have a forklift, a pallet truck or an engine crane ready, and check the wrapping before you sign.

What do I need when the engine is delivered?

Carriers deliver to the kerb or a loading bay. Please have a forklift, a pallet truck or an engine crane ready.

An engine on its pallet is heavy, so do not try to lift it by hand.

Before you sign, check the wrapping. If it is damaged, write it on the paperwork, take photos and contact us the same day.

Delivering to a workshop is often easiest, because they have the lifting tools.

How long does engine delivery to Malta take?

Delivery from our Hamburg yard to Malta takes 4 to 8 working days after dispatch. Orders confirmed before 14:00 CET on a working day leave Hamburg the same day. Later and weekend orders leave the next working day.

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.

Malta is in the EU customs area for this shipment, so there is no import duty and no customs paperwork.

The carrier delivers to the kerb or a loading bay. Please have a forklift, a pallet truck or an engine crane ready, and check the wrapping before you sign.

How long does engine delivery to Denmark take?

Delivery from our Hamburg yard to Denmark takes 1 to 3 working days after dispatch. Orders confirmed before 14:00 CET on a working day leave Hamburg the same day. Later and weekend orders leave the next working day.

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.

Denmark is in the EU customs area for this shipment, so there is no import duty and no customs paperwork.

The carrier delivers to the kerb or a loading bay. Please have a forklift, a pallet truck or an engine crane ready, and check the wrapping before you sign.

How do I make a warranty claim?

Contact the desk with your order number, a short description of the problem, and photos or a video.

We may ask for a mechanic's inspection report.

If the claim is approved, we repair, replace or refund the engine.

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.

How long does engine delivery to Belgium take?

Delivery from our Hamburg yard to Belgium takes 1 to 3 working days after dispatch. Orders confirmed before 14:00 CET on a working day leave Hamburg the same day. Later and weekend orders leave the next working day.

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.

Belgium is in the EU customs area for this shipment, so there is no import duty and no customs paperwork.

The carrier delivers to the kerb or a loading bay. Please have a forklift, a pallet truck or an engine crane ready, and check the wrapping before you sign.

How do I contact Autowerke Engines?

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 contact form on our site. We reply during working hours.

For a fast answer about fitment, include your VIN and the engine code in your first message.

Our yard and office are at Andreas Meyer Straße 38, 22113 Hamburg, Germany.

How long is the engine warranty?

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 engine must be fitted by a qualified mechanic or workshop, with the correct oil, coolant, filters and service parts.

Report any problem to us right away, and do not open or repair the engine without our written approval.

If a claim is approved, we repair, replace or refund the engine.

How do I pay with USDT or Bitcoin?

After you place the order, we email a wallet address and the amount in euro.

For USDT, the email also names the network. Send only on that network, or the payment may be lost.

The unit stays reserved until the transfer is confirmed on the network, then it is dispatched.

If anything is unclear, ask the desk before you send.

How long does engine delivery to Spain take?

Delivery from our Hamburg yard to Spain takes 2 to 5 working days after dispatch. Orders confirmed before 14:00 CET on a working day leave Hamburg the same day. Later and weekend orders leave the next working day.

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.

Spain is in the EU customs area for this shipment, so there is no import duty and no customs paperwork.

The carrier delivers to the kerb or a loading bay. Please have a forklift, a pallet truck or an engine crane ready, and check the wrapping before you sign.

Do you sell to workshops and trade customers?

Yes. Many of our customers are workshops, dealers and fleet owners.

Approved workshops and fleet operators can order on 30-day terms. Write to autowerkeengines@gmail.com with your company details to apply.

Trade customers get the same checks and photos on every engine, and a VAT invoice with every order.

Ask the desk about regular orders or sourcing a specific engine.

How long does engine delivery to the Netherlands take?

Delivery from our Hamburg yard to the Netherlands takes 1 to 3 working days after dispatch. Orders confirmed before 14:00 CET on a working day leave Hamburg the same day. Later and weekend orders leave the next working day.

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.

The Netherlands is in the EU customs area for this shipment, so there is no import duty and no customs paperwork.

The carrier delivers to the kerb or a loading bay. Please have a forklift, a pallet truck or an engine crane ready, and check the wrapping before you sign.

What does the warranty not cover?

The warranty does not cover damage from wrong fitting or wrong use.

It also does not cover overheating, low oil, poor servicing, wrong fluids, fuel or parts, or engines that were modified, opened or repaired without our approval.

Labour costs, towing, vehicle recovery and other losses are not covered.

Following the fitting advice and keeping your receipts is the best way to stay covered.

Do I need to code the engine computer after a swap?

If you reuse the engine computer from your car, and the new engine has the same code, little or no coding is usually needed.

If the engine is a different version, or the engine computer comes with the engine, a specialist may need to code it to your car's immobiliser and options.

Ask us before you order. We tell you if the unit needs coding for your car.

Your VIN helps us give the right answer.

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.
• 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 S85 rewards owners who understand it. Check the code against your VIN, ask for compression figures and photographs, replace the known weak parts while the engine is out, and fit it with fresh fluids and filters. Do that and a used S85 will give years of service.

Ready to order, or need help choosing? Browse every S85 in stock, contact the Hamburg desk or send us your VIN on WhatsApp.

Guides to each S85 version

• BMW S85B50 engine: specs, problems and prices