The M21 and M41 are BMW's early turbodiesels. The 2.4 litre M21 powered the E28 524td, the E30 324td and the E34 524td from 1983. The 1.7 litre M41 four-cylinder powered the E36 318tds from 1994.
They are rare today. Buyers are classic owners and people restoring diesel E28, E30 and E36 cars.
- Production: 1983–2000
- Versions covered: M21D24 and M41D17
- Output range: 90–115 hp
- Fuel and layout: diesel inline-6 and diesel inline-4
- Fitted to: 3 BMW models across 3 chassis generations
- In our stock now: ask the desk for the next arrival — browse all M21 and M41 engines
The M21 and M41 at a glance
The table lists every M21 and M41 version we supply with its capacity, layout, output and production years. Use it with your car's engine code to find the right unit.
| Engine code | Capacity | Layout | Power | Torque | Years |
|---|---|---|---|---|---|
| M21D24 | 2.4 L | Inline-6, turbocharged | 115 hp | 220 Nm | 1983–1991 |
| M41D17 | 1.7 L | Inline-4, turbocharged | 90 hp | 190 Nm | 1994–2000 |
Across 2 versions, output runs from 90 to 115 hp. The spread reflects different capacities, tuning for different markets and the technical updates BMW made over 18 years of production.
History of the M21 and M41
BMW built the M21 from the M20 petrol six with a diesel head, a timing belt and a turbocharger. The M41 was a four-cylinder from the same family as the M51.
1983: the M21D24 arrived with 2.4 L and 115 hp in the BMW E28 524td and BMW E30 324td.
1994: the M41D17 arrived with 1.7 L and 90 hp in the BMW E36 318tds. It was a lower-output version for smaller or more economical models.
Every M21 and M41 version explained
M21D24 (2.4 L, 115 hp)
The M21D24 is a 2.4 L inline-6 diesel engine, turbocharged, rated at 115 hp and 220 Nm. BMW built it from 1983 to 1991. That is about 48 hp and 92 Nm per litre, a relaxed tune aimed at torque, durability and economy. Within the M21 and M41 family, it is the most powerful version, while the M41D17 (90 hp) is milder. It was fitted to the BMW E28 524td and BMW E30 324td.
Reading the code: M marks an M-series code, the naming BMW used for its engine families up to the early 2000s; 21 is the family number; D stands for diesel; 24 is the capacity in decilitres, so 2.4 litres.
M41D17 (1.7 L, 90 hp)
The M41D17 is a 1.7 L inline-4 diesel engine, turbocharged, rated at 90 hp and 190 Nm. BMW built it from 1994 to 2000. That is about 53 hp and 112 Nm per litre, a relaxed tune aimed at torque, durability and economy. Within the M21 and M41 family, the M21D24 (115 hp) is more powerful. It was fitted to the BMW E36 318tds.
Reading the code: M marks an M-series code, the naming BMW used for its engine families up to the early 2000s; 41 is the family number; D stands for diesel; 17 is the capacity in decilitres, so 1.7 litres.
Which cars use the M21 and M41
The M21 and M41 was fitted to 3 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 M21 and M41 powered the 524td (M21D24, 115 hp).
For an E28, confirm the production date as well as the model: BMW often changed engine versions at the mid-life update. All E28 engines in stock.
BMW E30 second 3 Series (1982–1994)
In the second 3 Series, built 1982–1994 as a saloon, Touring, coupé, convertible, the M21 and M41 powered the 324td (M21D24, 115 hp).
When ordering for an E30, 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. All E30 engines in stock.
BMW E36 third 3 Series (1990–2000)
In the third 3 Series, built 1990–2000 as a saloon, Touring, coupé, convertible, Compact, the M21 and M41 powered the 318tds (M41D17, 90 hp).
When ordering for an E36, 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. All E36 engines in stock.
Will an M21 and M41 fit my BMW? Model-by-model answers
Short answers for every model that left the factory with an M21 and M41, with prices from our current stock.
Will the M21D24 fit my BMW E28 524td?
Yes, the BMW E28 524td left the factory with the M21D24, so an M21D24 from another car is the direct replacement. The second 5 Series was built 1981–1988, and the M21D24 was produced 1983–1991, 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 524td?
We do not have an M21D24 on the shelf for the E28 524td 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 M21D24 fit my BMW E30 324td?
For the BMW E30 324td, the M21D24 is the factory engine and the one to order. The second 3 Series was built 1982–1994, and the M21D24 was produced 1983–1991, 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 E30 324td?
We do not have an M21D24 on the shelf for the E30 324td 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.
M21 and M41 model-year guide
Use this year-by-year guide to see which M21 and M41 versions were in production when your car was built.
1983 — M21D24 was in production. New this year: M21D24.
1984 — M21D24 was in production.
1985 — M21D24 was in production.
1986 — M21D24 was in production.
1987 — M21D24 was in production.
1988 — M21D24 was in production.
1989 — M21D24 was in production.
1990 — M21D24 was in production.
1991 — M21D24 was in production. Last year for M21D24.
1994 — M41D17 was in production. New this year: M41D17.
1995 — M41D17 was in production.
1996 — M41D17 was in production.
1997 — M41D17 was in production.
1998 — M41D17 was in production.
1999 — M41D17 was in production.
2000 — M41D17 was in production. Last year for M41D17.
Common M21 and M41 problems and what to check
No engine is perfect. These are the faults our workshop sees most often on the M21 and M41, what causes them and how to check a used unit before you buy.
Injection pump
Mechanical injection pumps wear and leak.
How to check: Check for smoke and starting problems.
Head cracks
Heads crack after overheating.
How to check: Pressure-test the system.
Timing belt (M21)
The M21 uses a timing belt that must be changed on time.
How to check: Ask for the belt history.
Diagnosing a failing M21 and M41: 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 M21 and M41 is the better route.
| Symptom | Likely cause |
|---|---|
| Knocking from the bottom of the engine | A deep knock that rises with engine speed usually means worn rod or main bearings. |
| 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. |
| White smoke that smells sweet | Coolant burning in the cylinders, from a head gasket, a cracked head or, on diesels, a leaking EGR cooler. |
| Blue smoke | Oil burning in the cylinders. |
| Rough idle or misfire | Ignition coils, spark plugs, injectors and vacuum leaks are the usual causes. |
| Loss of power | Start with the simple things: air filter, boost leaks on turbo engines, fuel pressure and fault codes. |
| Whistle, loss of boost or limp mode | A split charge pipe, a sticking wastegate or worn turbo bearings. |
| Black smoke under acceleration | Too much fuel for the air available: boost leaks, a sticking EGR valve, a dirty air mass meter or a leaking injector. |
| Hard starting when cold | Glow plugs or the glow plug control unit. |
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.
Whistle, loss of boost or limp mode. A split charge pipe, a sticking wastegate or worn turbo bearings. Check the pipes first, then the turbo shaft for play.
Black smoke under acceleration. Too much fuel for the air available: boost leaks, a sticking EGR valve, a dirty air mass meter or a leaking injector.
Hard starting when cold. Glow plugs or the glow plug control unit. On older diesels, also check the injection pump and fuel lines for air leaks.
Repair or replace your M21 and M41?
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 M21 and M41 are damaged, a used engine is usually cheaper and quicker than a rebuild.
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.
M21 and M41 maintenance and running costs
| Item | Recommendation |
|---|---|
| Engine oil | 10W-40 or 15W-40 diesel-rated oil. |
| Timing drive | Timing belt on the M21, chain on the M41. |
| Service interval | Oil every 7,500 km. |
Change the M21 timing belt when fitting a used engine.
Shorter oil intervals than the factory maximum are the cheapest insurance for an M21 and M41. Most of the expensive faults on BMW engines start with tired oil.
Let a turbocharged engine idle for thirty seconds after hard driving so the turbo can cool, and warm it up gently before using full boost.
Diesels need regular longer runs to regenerate their particulate filter. If the car mostly does short trips, plan a motorway drive every few weeks.
Buying a used M21 and M41: the full checklist
Work through these points before you order a used M21 and M41, whoever you buy from.
- Confirm the exact engine code. Read the code stamped on the block and compare it with the code for your car. Send us the last seven characters of the VIN and we confirm the match before anything is paid.
- Ask how the donor car was damaged. Most good used engines come from cars with body damage. A front-end impact can crack sensors, the timing cover or the sump; a rear or side impact usually leaves the engine untouched. The yard records the damage on each unit.
- Compression or leak-down figures. Even compression across all cylinders tells you more than mileage. Ask for the figures, not just a pass or fail, and compare the highest and lowest readings: a spread above 10 to 15 percent deserves a question.
- Look at the oil and coolant. Clean oil without metal particles and coolant without oil are good signs. Milky oil, oily coolant or a burnt smell mean the engine needs further checks before it is fitted.
- Photographs from every side. Good suppliers photograph the actual engine you will receive. Look for the block stamp, the sump, the timing cover and any broken brackets or connectors in the pictures.
- List of what is fitted. Engines are sold with different ancillaries: some have the turbo, injectors, manifolds, alternator and starter, others are long blocks. Agree the list in writing so you know which parts must come from your old engine.
- Sump, oil pickup and drive variants. Rear-drive, xDrive and front-drive cars can use different sumps, oil pickups and engine mounts even with the same engine code. Check that the sump matches your subframe and front axle.
- Gearbox and flywheel match. Manual and automatic engines differ at the flywheel or flexplate, and sometimes at the crankshaft spigot. Make sure the engine you buy matches your gearbox or that you transfer the right parts.
- Warranty terms in writing. Read what the warranty covers, how long it runs and what fitting conditions apply. Most warranties require a qualified workshop, new fluids and filters, and replacement of the cooling parts that caused the original failure.
- Why your old engine failed. Before fitting a replacement, find out why the original failed. An overheating radiator, a blocked intercooler or a failed turbo can destroy a second engine if they are not fixed.
- Turbocharger shaft play and oil. Rotate the compressor wheel by hand. A small amount of side play is normal; in-and-out play or wheel contact with the housing is not. Oil pooled in the intake or intercooler pipes points to worn seals.
- Injector correction values. On a diesel that can be run before removal, the injector correction values show whether one injector is delivering more or less fuel than the others. Large deviations mean an injector is on its way out.
- 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.
M21 and M41 prices: what you should pay
We do not have an M21 and M41 on the shelf at the moment. Send us your VIN or the code you need and the desk will tell you when the next unit arrives and what it will cost.
M21 and M41 engines in stock now
Fitting a replacement M21 and M41
These are the steps we recommend to every workshop fitting one of our M21 and M41 engines.
- 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.
- 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.
- 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.
- 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.
- 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.
- Prepare the turbo. Fit new oil feed and return seals, clean the intercooler and pipes of any oil or debris from the old engine, and prime the turbo with oil before starting.
- Code the injectors and bleed the fuel. Enter the injector correction codes into the ECU, check the glow plugs and bleed the fuel system so the engine does not crank dry.
- 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.
- 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.
- 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.
- 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.
- 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
Few tuning options exist.
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.
M21 and M41 compared with similar BMW engines
Buyers often compare the M21 and M41 with these engines. Here is how they line up.
| Engine | Power | Years | Median price in stock |
|---|---|---|---|
| M21 and M41 | 90–115 hp | 1983–2000 | on request |
| M47 | 136–150 hp | 1998–2007 | 1.455,00 € |
| B47 | 150–190 hp | 2014–2026 | 3.040,00 € |
| N47 | 112–218 hp | 2007–2016 | 1.794,00 € |
The M47 reaches higher outputs (up to 150 hp against 115 hp) and uses timing chain at the front. Its best-known faults are swirl flaps and egr valve and cooler. Read the M47 guide.
The B47 reaches higher outputs (up to 190 hp against 115 hp) and uses timing chain at the rear (gearbox end). Its best-known faults are egr cooler and diesel particulate filter. Read the B47 guide.
The N47 reaches higher outputs (up to 218 hp against 115 hp) and uses timing chain at the rear (gearbox end). Its best-known faults are timing chain and swirl flaps. Read the N47 guide.
Delivery, warranty and payment
Every M21 and M41 engine we sell is drained, sealed at each opening, strapped to a heat-treated pallet and shrink-wrapped before it leaves Hamburg. You receive photographs of the packed engine and a tracking number.
Delivery is door to door and included in the price. Most European addresses receive the engine within five to ten working days; Germany and its neighbours are usually faster.
Every engine carries a 12-month warranty on eligible internal failure when a qualified workshop fits it with new fluids and filters. Payment is by card, bank transfer or crypto; your invoice is emailed as soon as you order.
We deliver M21 and M41 engines from Hamburg to customers across Europe and beyond. Typical door-to-door times and customs status:
| Country | Typical delivery | Customs and VAT |
|---|---|---|
| Germany | 2–4 working days | No customs; German VAT on the invoice |
| Netherlands | 3–5 working days | EU delivery, no customs |
| Belgium | 3–5 working days | EU delivery, no customs |
| Austria | 3–5 working days | EU delivery, no customs |
| Denmark | 3–5 working days | EU delivery, no customs |
| Poland | 3–6 working days | EU delivery, no customs |
| Czech Republic | 3–6 working days | EU delivery, no customs |
| France | 4–7 working days | EU delivery, no customs |
| Italy | 5–8 working days | EU delivery, no customs |
| Spain | 5–8 working days | EU delivery, no customs |
| Portugal | 6–9 working days | EU delivery, no customs |
| Sweden | 5–8 working days | EU delivery, no customs |
| Norway | 6–10 working days | Export; import VAT and duty in Norway |
| Switzerland | 5–8 working days | Export; import VAT and duty in Switzerland |
| United Kingdom | 5–10 working days | Export; UK import VAT and duty on arrival |
| Ireland | 6–10 working days | EU delivery, no customs |
| United States | Quoted per order | Export; US import duties apply |
| United Arab Emirates | Quoted per order | Export; UAE import duties apply |
Times are typical for pallet delivery after dispatch and can vary with holidays and remote addresses. Business buyers in the EU with a valid VAT number can order without German VAT.
Questions buyers ask about the M21 and M41
Will the M41D17 engine fit my BMW E36 318tds?
Yes, if your BMW E36 318tds was built with the M41D17. BMW used this 1.7 liter (1,665 cc) diesel engine with 66 kW (90 HP) in the E36 318tds from about 1994 to 2000.
In our records the M41D17 is the engine for the E36 318tds, which makes the match simple. Still, check the code on your old engine or send us your VIN.
Also tell us if your E36 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 M41 Engines · Search M41D17 in the shop
How much is a replacement M41D17 engine for a BMW E36 318tds?
A used M41D17 for the BMW E36 318tds costs from about 700 € to 1.350 € 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 M41D17 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 M41 Engines · Search M41D17 in the shop
Will the M41D17 engine fit my BMW E36 Compact 318tds?
Yes, if your BMW E36 Compact 318tds was built with the M41D17. BMW used this 1.7 liter (1,665 cc) diesel engine with 66 kW (90 HP) in the E36 Compact 318tds from about 1994 to 2000.
In our records the M41D17 is the engine for the E36 Compact 318tds, which makes the match simple. Still, check the code on your old engine or send us your VIN.
Also tell us if your E36 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 M41 Engines · Search M41D17 in the shop
How much is a replacement M41D17 engine for a BMW E36 Compact 318tds?
A used M41D17 for the BMW E36 Compact 318tds costs from about 700 € to 1.350 € 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 M41D17 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 M41 Engines · Search M41D17 in the shop
What is the BMW M41D17 engine?
The BMW M41D17 is a 1.7 liter (1,665 cc) diesel engine from the M41 family. It has an inline 4, SOHC, 8 valve layout with a single turbocharger, and makes 66 kW (90 HP) with 190 Nm of torque. BMW built it from 1994 to 2000 and it meets the Euro 2 emission standard.
You find the M41D17 in the BMW E36 318tds and BMW E36 Compact 318tds. What we list: BMW M41 1.7 diesel engines for the E36 318tds.
At Autowerke Engines every M41D17 is a real used engine from our yard in Hamburg. Before a unit is listed, the yard checks the engine code against the listing, writes down the parts fitted to it, seals every opening and photographs the real engine you will receive. Each listing shows the year, the mileage and the price, so you can compare units side by side.
Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.
See all M41 Engines · Search M41D17 in the shop
How much does a used BMW M41D17 engine cost?
A used BMW M41D17 engine in our yard usually costs between 700 € and 1.350 €. 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 M41 Engines · Search M41D17 in the shop
Which cars use the BMW M41D17 engine?
BMW fitted the M41D17 to the BMW E36 318tds and BMW E36 Compact 318tds. These cars were built with this engine from about 1994 to 2000.
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 M41D17 is the only M41 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 M41 Engines · Search M41D17 in the shop
How much power and torque does the BMW M41D17 have?
From the factory the BMW M41D17 makes 66 kW (90 HP) and 190 Nm of torque. It is a 1.7 liter (1,665 cc) inline 4, SOHC, 8 valve diesel engine with a single turbocharger.
Because it is turbocharged, the torque comes in low in the rev range, which makes the car feel strong in everyday driving. A healthy turbo, a clean intercooler and tight boost pipes are key to getting the full figure.
A used engine reaches its factory numbers when it is fitted with the matching engine computer and software, and serviced with the right oil and filters. If the engine computer from your car is a different version, a specialist may need to code it.
Every M41D17 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 M41 Engines · Search M41D17 in the shop
How do I know a used M41D17 engine is in good shape?
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. 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 diesel like the M41D17, a careful fitter will also look at the injectors, the turbo shaft play and the oil in the intake 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 M41 Engines · Search M41D17 in the shop
What comes with a used M41D17 engine?
Each M41D17 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 M41 Engines · Search M41D17 in the shop
Is the BMW M41D17 a diesel or petrol engine?
The M41D17 is a diesel engine. It is a 1.7 liter (1,665 cc) inline 4, SOHC, 8 valve unit with a single turbocharger, and it was built to the Euro 2 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.
Diesel versions need the matching exhaust treatment parts 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 M41 Engines · Search M41D17 in the shop
Are there other versions of the BMW M41D17?
In our yard the M41D17 is the only listed version of the M41 family. It makes 66 kW (90 HP) and 190 Nm, and was built from 1994 to 2000.
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 M41 Engines · Search M41D17 in the shop
How long does delivery of an M41D17 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 M41 Engines · Search M41D17 in the shop
What should I replace when I fit a used M41D17 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. Clean the intercooler and the intake pipes, and fill the turbo oil feed with clean oil before the first start, so the turbo never runs dry. 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 M41 Engines · Search M41D17 in the shop
Does a used M41D17 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 M41 Engines · Search M41D17 in the shop
Can you check if an M41D17 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 M41D17, we confirm that your car was built with this code or with a version that can take it. BMW used it in the BMW E36 318tds and BMW E36 Compact 318tds.
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 M41 Engines · Search M41D17 in the shop
What should I know about the BMW M41 engine?
BMW M41 1.7 diesel engines for the E36 318tds. We list one version: M41D17 (1.7 liter (1,665 cc), 66 kW (90 HP), 1994 to 2000).
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 M41 family was used in chassis E36. 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.
What should I check on a used BMW M41 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 M41 diesel, a fitter usually checks the turbo for shaft play, the intake for heavy oil or soot, the injector seals and the glow plugs. These parts are easy to check before fitting and easy to change if needed.
If you want more photos or a short video of a unit, ask the desk and we send them before you pay. An inspection certificate can travel with the order on request.
Once fitted, change the oil and filter early and drive gently at first. Report any problem right away so the warranty stays valid.
See all M41 Engines · Inspection certificate
Which years were BMW M41 engines made?
BMW built the M41 engines we list from about 1994 to 2000. The M41D17 ran from 1994 to 2000.
They went into chassis E36. 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.
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.
Can I visit the yard in Hamburg?
Yes. Our yard is at Andreas Meyer Straße 38, 22113 Hamburg, Germany.
Please book a visit with the desk first, so the unit you want to see is ready and someone can show you around.
Opening hours for the desk are Monday to Friday, 9:00 to 16:00 CET.
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 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.
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.
How long does engine delivery to France take?
Delivery from our Hamburg yard to France 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.
France 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 Germany take?
Delivery from our Hamburg yard to Germany 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.
Germany 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 Portugal take?
Delivery from our Hamburg yard to Portugal 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.
Portugal 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.
Should a workshop fit my engine?
Yes. The warranty asks that the engine is fitted by a qualified mechanic or workshop.
An engine swap involves lifting gear, wiring, coding and fluids. A workshop has the tools and the know-how to do it right.
Ask your workshop to keep a record of the fluids and parts they use.
If your workshop has questions about the unit, they can call the desk directly.
What does the free VIN check do?
The VIN check on our site reads the year, the make, the model and the engine from the public vehicle register.
After that, our desk confirms the gearbox and the parts your car needs, so the engine you reserve is the right one.
The check is free and there is no obligation to buy.
Your VIN is 17 characters long. You find it on the registration papers, at the bottom of the windscreen or on the door pillar.
How is an engine packed for shipping?
Every engine is drained, sealed at each opening, strapped to a heat-treated pallet and shrink-wrapped, then photographed before it leaves the yard.
Open faces are protected with board and foam, so nothing gets knocked in transit.
Fluids are drained to keep the pallet clean and safe for the carrier.
The photos of the packed pallet are kept on file, which helps if there is ever a damage claim.
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 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.
Do your prices include VAT?
Yes. Prices include VAT at the correct rate for private buyers.
A VAT invoice is issued with every order and emailed on dispatch.
Business buyers can ask about VAT treatment for their country.
Shipping is 249 € per order and is shown on the same invoice.
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 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.
How much does shipping cost?
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.
The fee covers packing on a heat-treated pallet, shrink-wrapping and delivery by a freight carrier.
Inside the EU there is no import duty. For non-EU countries, the receiver pays import duty and local VAT.
The UK and other non-EU destinations get an individual quote for the delivery time.
What should I do before the first start?
Fit a new oil filter, fill with the correct oil and refill the coolant. On turbo engines, fill the turbo oil feed with clean oil.
Turn the engine over without fuel or ignition until the oil pressure light goes out. This brings oil to every bearing before the engine runs.
Check all hoses, clips and electrical plugs, then start the engine and let it idle while you look for leaks.
Bleed the cooling system and top up as the air comes out.
How long does engine delivery to Ireland take?
Delivery from our Hamburg yard to Ireland 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.
Ireland 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 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.
Who pays for return shipping?
If you change your mind, you pay the return shipping.
If we sent the wrong item or it arrived damaged, we cover the return.
Always contact us first. We arrange the pallet and the paperwork so the engine travels safely.
Returns are accepted within 14 days of delivery for unused items.
What is the inspection certificate?
The inspection certificate is a sheet that records the unit that leaves our yard.
It notes that the engine or gearbox code was checked against the listing, that the parts were recorded as fitted, that the openings were sealed, and that the unit was photographed and packed with a tracking number.
You can ask for the certificate on any unit in the yard. It is sent with the order confirmation.
Many buyers keep it with the car's service papers.
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.
How long does engine delivery to Lithuania take?
Delivery from our Hamburg yard to Lithuania 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.
Lithuania 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 does paying by bank transfer work?
SEPA bank transfer is available on request. After your order we send the bank details and the amount.
We hold the unit for five working days while the transfer clears, then dispatch it.
Please use your order number as the payment reference so we can match it quickly.
A VAT invoice is emailed when the engine is dispatched.
How long does engine delivery to Estonia take?
Delivery from our Hamburg yard to Estonia 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.
Estonia 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 return an engine?
Yes, within 14 days of delivery, if the item has not been fitted or used and comes back in its original condition and packing with all supplied parts.
Please contact us before you send anything back. Returns without our approval cannot be accepted.
Once the return arrives and is checked, we tell you the result. Approved refunds go back to your original payment method.
The original shipping fee is not refunded unless the return is our mistake.
Do I pay customs or import duty?
Inside the EU, there is no import duty and no customs paperwork.
For the UK, Switzerland, Norway and other non-EU countries, the receiver pays import duty and local VAT.
We supply a commercial invoice and origin documents where they apply, which makes customs clearance faster.
Ask the desk for a delivery quote for your country before you order.
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 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.
What if my engine arrives damaged?
Check the pallet before you sign. If the wrapping is damaged, note it on the paperwork and take photos.
Contact us within 48 hours of delivery with your order number and clear photos of the product and the packing.
If you got the wrong item or it arrived damaged, we pay the return shipping and put it right.
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 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.
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.
Are the photos on each listing of the real engine?
Yes. The photos show the real unit in our Hamburg yard, not a catalogue picture.
Before an engine is listed we check the code, write down the parts on it and seal the openings. The photos are taken at the same time.
If you want to see more, ask the desk for extra photos or a short video. We send them before you pay.
An inspection certificate can also travel with the engine on request.
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.
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.
Glossary
- Wastegate — A valve that lets exhaust gas bypass the turbine to control boost pressure. Worn wastegates rattle and can cause boost faults.
- Common rail — A diesel injection system with a high-pressure fuel rail feeding all injectors. It allows precise, multiple injections per cycle.
- Long block — An engine with the block, head and internals but without most ancillaries such as manifolds, turbo, alternator or starter.
- Dressed engine — An engine with most ancillaries fitted, ready to install with fewer parts transferred.
- Compression test — A measurement of the pressure each cylinder builds when cranked. Even readings show healthy rings and valves.
- Leak-down test — A test that pressurises each cylinder and measures how much air escapes, showing where any leak is.
- LCI — Life Cycle Impulse, BMW's name for a mid-life update. Engines often change at the LCI.
- xDrive — BMW's all-wheel-drive system. xDrive cars often use a different sump and oil pickup.
- DME — Digital Motor Electronics, BMW's name for the engine control unit.
- CAS, FEM and BDC — The immobiliser and body modules that must be matched to the engine control unit on modern BMWs.
- TU — Technical Update, BMW's suffix for a revised version of an engine.
Our verdict
Bought with care, the M21 and M41 is a sound choice. 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 M21 and M41 will give years of service.
Ready to order, or need help choosing? Browse every M21 and M41 in stock, contact the Hamburg desk or send us your VIN on WhatsApp.
