BMW E84 X1 engines: every engine, fitment and price

The first X1 was built from 2009 to 2015. Engines included the N46, N52 and N20 petrols and the N47 diesel.

In total, 4 model and engine combinations are listed for the BMW E84 X1 in our data, using 3 engine families: N42 and N46, N47 and N20 and N26. Production covered 2009–2015. We currently hold 227 engines that suit these cars.

Every BMW E84 X1 engine at a glance

BMW E84 X1: petrol engines

N42 and N46 in the BMW E84 X1

The E84 X1 18i uses the N46B20, a 2.0 L inline-4 rated at 150 hp and 200 Nm, built 2004–2012. See every N46B20 in stock.

BMW introduced the N42 in 2001 with Valvetronic, double VANOS and balance shafts.

On the N42 and N46, our workshop watches for oil consumption, timing chain stretch and valvetronic motor and eccentric shaft sensor. Replace the timing chain, tensioner and valve stem seals when fitting a high-mileage used N46.

Read our full N42 and N46 guide

N20 and N26 in the BMW E84 X1

The E84 X1 28i uses the N20B20, a 2.0 L inline-4 rated at 245 hp and 350 Nm, built 2011–2017. See every N20B20 in stock.

Launched in 2011 to replace the N52 and N46 in many cars, the N20 combined a twin-scroll turbocharger, direct injection, Valvetronic and double VANOS.

On the N20 and N26, our workshop watches for timing chain guide, oil pump drive chain and electric water pump. Replacing the chain on an N20 normally needs the engine out, so a used unit is the time to do it.

Read our full N20 and N26 guide

We have 1 N20 and N26 engines that suit the BMW E84 X1, from 2.113,00 €.

BMW E84 X1: diesel engines

N47 in the BMW E84 X1

For the E84 X1 18d, BMW fitted the N47D20C — 2.0 L, turbocharged, 143 hp. See every N47D20C in stock.

The E84 X1 20d uses the N47D20, a 2.0 L inline-4 rated at 184 hp and 380 Nm, built 2007–2016. See every N47D20 in stock.

BMW launched the N47 in 2007 with an aluminium block, common-rail injection and a rear-mounted timing chain.

On the N47, our workshop watches for timing chain, swirl flaps and egr cooler. Replace the timing chain and guides when fitting a used N47 unless they were recently done.

Read our full N47 guide

We have 225 N47 engines that suit the BMW E84 X1, from 824,00 €.

Will it fit? BMW E84 X1 engine questions

Will the N46B20 fit my BMW E84 X1 18i?

Yes, the BMW E84 X1 18i left the factory with the N46B20, so an N46B20 from another car is the direct replacement. The first X1 was built 2009–2015, and the N46B20 was produced 2004–2012, 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 E84 X1 18i?

We do not have an N46B20 on the shelf for the E84 X1 18i 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 N47D20C fit my BMW E84 X1 18d?

Yes, the BMW E84 X1 18d left the factory with the N47D20C, so an N47D20C from another car is the direct replacement. The first X1 was built 2009–2015, and the N47D20C was produced 2007–2015, 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 E84 X1 18d?

We have 63 N47D20C engines from E84 donor cars, priced from 824,00 € to 2.826,00 €. Delivery to your door is included, and the engine carries a 12-month warranty when fitted by a qualified workshop. Add fitting labour and the parts you replace at the same time — seals, cooling parts and mounts — to estimate the total.

Will the N47D20 fit my BMW E84 X1 20d?

The N47D20 is the original engine for the BMW E84 X1 20d, which makes it the straightforward choice. The first X1 was built 2009–2015, and the N47D20 was produced 2007–2016, 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 E84 X1 20d?

We have 222 N47D20 engines from E84 donor cars, priced from 824,00 € to 4.033,00 €. Delivery to your door is included, and the engine carries a 12-month warranty when fitted by a qualified workshop. Add fitting labour and the parts you replace at the same time — seals, cooling parts and mounts — to estimate the total.

Will the N20B20 fit my BMW E84 X1 28i?

For the BMW E84 X1 28i, the N20B20 is the factory engine and the one to order. The first X1 was built 2009–2015, and the N20B20 was produced 2011–2017, so check that your car's build date falls inside that window. Confirm the drive type (rear-drive or xDrive), the gearbox (manual or automatic) and the emissions standard, because these can change the sump, the flywheel and the software. Send us the VIN and we check all of it for you.

How much is a replacement engine for a BMW E84 X1 28i?

We have 1 N20B20 engine from E84 donor cars, priced from 2.113,00 €. Delivery to your door is included, and the engine carries a 12-month warranty when fitted by a qualified workshop. Add fitting labour and the parts you replace at the same time — seals, cooling parts and mounts — to estimate the total.

Engine swap questions for the BMW E84 X1

Owners often ask whether a more powerful engine from another BMW E84 X1 model can be fitted. These answers show what each upgrade involves.

Can I fit the N20B20 from the E84 X1 28i into an E84 X1 18i?

It is possible, and it is one of the more common upgrades. Both engines are petrol inline-4 units, so the engine bay and mounting points are similar, but the N20B20 needs its own wiring harness and ECU, the matching gearbox or clutch, and often a different sump, cooling and exhaust. The gain is 95 hp and 150 Nm. In Germany and most of Europe a swap must be inspected and registered; check with your testing station first.

Can I fit the N47D20 from the E84 X1 20d into an E84 X1 18i?

It is a full conversion: the N47D20 runs on diesel and the N46B20 on petrol, so the fuel system, wiring, ECU, instrument coding and usually the gearbox change too. The gain is 34 hp and 180 Nm. In Germany and most of Europe a swap must be inspected and registered; check with your testing station first.

Can I fit the N46B20 from the E84 X1 18i into an E84 X1 18d?

It is a full conversion: the N46B20 runs on petrol and the N47D20C on diesel, so the fuel system, wiring, ECU, instrument coding and usually the gearbox change too. The gain is 7 hp and 0 Nm. In Germany and most of Europe a swap must be inspected and registered; check with your testing station first.

Can I fit the N20B20 from the E84 X1 28i into an E84 X1 18d?

It is a full conversion: the N20B20 runs on petrol and the N47D20C on diesel, so the fuel system, wiring, ECU, instrument coding and usually the gearbox change too. The gain is 102 hp and 30 Nm. In Germany and most of Europe a swap must be inspected and registered; check with your testing station first.

Can I fit the N20B20 from the E84 X1 28i into an E84 X1 20d?

It is a full conversion: the N20B20 runs on petrol and the N47D20 on diesel, so the fuel system, wiring, ECU, instrument coding and usually the gearbox change too. The gain is 61 hp and 0 Nm. In Germany and most of Europe a swap must be inspected and registered; check with your testing station first.

Fitment and swap notes for the BMW E84 X1

• N47 diesels need the chain checked.

Engines from the same family usually share mounts and gearbox bolt patterns, but wiring, ECU, sump and cooling differ between versions. Moving to a different family is a conversion, not a replacement.

N42 and N46: Tuning potential is limited. Most owners looking for more power choose a six-cylinder swap.

N47: Remaps add around 30 hp; check the chain first.

N20 and N26: Remaps unlock significant gains. A healthy N20 with updated guides is a good tuning base.

Known problems by engine in the BMW E84 X1

N42 and N46

• Oil consumption. Ask for consumption figures and check the spark plugs for oil fouling.
• Timing chain stretch. Listen for a rattle on a cold start and check the camshaft timing values.
• Valvetronic motor and eccentric shaft sensor. Check for Valvetronic fault codes.
• Vacuum pump and oil leaks. Look at the back of the head.
• Crankcase ventilation. Check for a whistle at idle.

N47

• Timing chain. Listen for a rattle at the gearbox end on a cold start and ask whether the chain has been replaced.
• Swirl flaps. Check the intake for damage.
• EGR cooler. Check the recall status and for coolant loss.
• Diesel particulate filter. Read the soot load and DPF fault codes.
• Injectors. Read injector correction values.

N20 and N26

• Timing chain guide. Listen for a whine or rattle; ask if the updated guides and chain are fitted.
• Oil pump drive chain. Check oil pressure warnings.
• Electric water pump. Check for cooling fault codes.
• Oil filter housing and valve cover gaskets. Look at the exhaust side for oil.
• Carbon build-up. Borescope inspection.

How to identify the right engine for your BMW E84 X1

Start with the VIN. The last seven characters identify your car in BMW's systems, and from them we can confirm the engine code, the production date, the gearbox and whether the car has xDrive. That is the only reliable way to order.

Next, check the stamp on the block. On most BMW four- and six-cylinder engines it sits on the left side of the block below the intake; on V engines it is usually at the back near the gearbox. The stamp shows the engine code and serial number.

Finally, compare the ancillaries. Two engines with the same code can carry different turbos, injectors, manifolds or sensors depending on the model and market. Our listings show what is fitted to each unit.

BMW E84 X1 engine prices

Our BMW E84 X1 engine stock runs to 227 units, priced from 824,00 € to 4.033,00 € with a median of 1.707,00 €.

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.

BMW E84 X1 engine prices by model year

Engines from 2005–2009 have a median of 1.621,00 €, while units from 2015–2019 sit at 2.155,00 €. Newer engines usually cost more because they come from younger donor cars with lower mileage and later updates.

BMW E84 X1 engine 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.

BMW E84 X1 engines in stock now

Here is a selection of BMW E84 X1 engine engines currently on our shelves, photographed in the yard. Click any of them for the full photographs, mileage and specification.

BMW E84 X1 20d N47D20A Engine 2008, 70,600 km1.975,00 €BMW E84 X1 xDrive20d N47D20C Engine 2014, 147,400 km2.064,00 €BMW E84 X1 20d N47D20A Engine 2010, 77,000 km1.998,00 €BMW E84 X1 20d N47D20A Engine 2007, 177,600 km1.621,00 €BMW E84 X1 20d N47D20A Engine 2010, 181,900 km1.998,00 €BMW E84 X1 20d N47D20A Engine 2011, 59,000 km1.831,00 €BMW E84 X1 20d N47D20A Engine 2011, 174,600 km1.385,00 €BMW E84 X1 20d N47D20A Engine 2011, 173,900 km1.991,00 €BMW E84 X1 20d N47D20A Engine 2009, 146,300 km1.397,00 €BMW E84 X1 xDrive20d N47D20C Engine 2011, 188,400 km1.605,00 €BMW E84 X1 20d N47D20A Engine 2007, 187,800 km1.700,00 €BMW E84 X1 20d N47D20A Engine 2008, 68,600 km1.489,00 €

BMW E84 X1 20d N47D20A Engine 2008, 70,600 km — 1.975,00 €, reduced from 2.700,00 €. It comes from a 2008 donor car with 70,600 km, and 20 units are available. We can confirm fitment against your VIN the same day.

BMW E84 X1 xDrive20d N47D20C Engine 2014, 147,400 km — 2.064,00 €, reduced from 3.300,00 €. It comes from a 2014 donor car with 147,400 km, and 5 units are available. The listing shows every side of the engine and the fitted parts.

BMW E84 X1 20d N47D20A Engine 2010, 77,000 km — 1.998,00 €, reduced from 2.950,00 €. It comes from a 2010 donor car with 77,000 km, and 16 units are available. Ask the desk for compression figures or extra photographs before you order.

BMW E84 X1 20d N47D20A Engine 2007, 177,600 km — 1.621,00 €, reduced from 2.700,00 €. It comes from a 2007 donor car with 177,600 km, and 13 units are available. Ask the desk for compression figures or extra photographs before you order.

BMW E84 X1 20d N47D20A Engine 2010, 181,900 km — 1.998,00 €, reduced from 3.150,00 €. It comes from a 2010 donor car with 181,900 km, and 12 units are available. Ask the desk for compression figures or extra photographs before you order.

BMW E84 X1 20d N47D20A Engine 2011, 59,000 km — 1.831,00 €, reduced from 2.900,00 €. It comes from a 2011 donor car with 59,000 km, and 28 units are available. We can confirm fitment against your VIN the same day.

BMW E84 X1 20d N47D20A Engine 2011, 174,600 km — 1.385,00 €, reduced from 2.200,00 €. It comes from a 2011 donor car with 174,600 km, and 21 units are available. Ask the desk for compression figures or extra photographs before you order.

BMW E84 X1 20d N47D20A Engine 2011, 173,900 km — 1.991,00 €, reduced from 2.750,00 €. It comes from a 2011 donor car with 173,900 km, and 25 units are available. The listing shows every side of the engine and the fitted parts.

BMW E84 X1 20d N47D20A Engine 2009, 146,300 km — 1.397,00 €, reduced from 2.750,00 €. It comes from a 2009 donor car with 146,300 km, and 18 units are available. The listing shows every side of the engine and the fitted parts.

BMW E84 X1 xDrive20d N47D20C Engine 2011, 188,400 km — 1.605,00 €, reduced from 2.900,00 €. It comes from a 2011 donor car with 188,400 km, and 7 units are available. Ask the desk for compression figures or extra photographs before you order.

BMW E84 X1 20d N47D20A Engine 2007, 187,800 km — 1.700,00 €, reduced from 2.700,00 €. It comes from a 2007 donor car with 187,800 km, and 10 units are available. Ask the desk for compression figures or extra photographs before you order.

BMW E84 X1 20d N47D20A Engine 2008, 68,600 km — 1.489,00 €, reduced from 2.350,00 €. It comes from a 2008 donor car with 68,600 km, and 17 units are available. Ask the desk for compression figures or extra photographs before you order.

Buying checklist for a BMW E84 X1 engine

1. Confirm the exact engine code. Read the code stamped on the block and compare it with the code for your car. Send us the last seven characters of the VIN and we confirm the match before anything is paid.
2. Ask how the donor car was damaged. Most good used engines come from cars with body damage. A front-end impact can crack sensors, the timing cover or the sump; a rear or side impact usually leaves the engine untouched. The yard records the damage on each unit.
3. Compression or leak-down figures. Even compression across all cylinders tells you more than mileage. Ask for the figures, not just a pass or fail, and compare the highest and lowest readings: a spread above 10 to 15 percent deserves a question.
4. Look at the oil and coolant. Clean oil without metal particles and coolant without oil are good signs. Milky oil, oily coolant or a burnt smell mean the engine needs further checks before it is fitted.
5. Photographs from every side. Good suppliers photograph the actual engine you will receive. Look for the block stamp, the sump, the timing cover and any broken brackets or connectors in the pictures.
6. List of what is fitted. Engines are sold with different ancillaries: some have the turbo, injectors, manifolds, alternator and starter, others are long blocks. Agree the list in writing so you know which parts must come from your old engine.
7. Sump, oil pickup and drive variants. Rear-drive, xDrive and front-drive cars can use different sumps, oil pickups and engine mounts even with the same engine code. Check that the sump matches your subframe and front axle.
8. Gearbox and flywheel match. Manual and automatic engines differ at the flywheel or flexplate, and sometimes at the crankshaft spigot. Make sure the engine you buy matches your gearbox or that you transfer the right parts.
9. Warranty terms in writing. Read what the warranty covers, how long it runs and what fitting conditions apply. Most warranties require a qualified workshop, new fluids and filters, and replacement of the cooling parts that caused the original failure.
10. Why your old engine failed. Before fitting a replacement, find out why the original failed. An overheating radiator, a blocked intercooler or a failed turbo can destroy a second engine if they are not fixed.
11. Turbocharger shaft play and oil. Rotate the compressor wheel by hand. A small amount of side play is normal; in-and-out play or wheel contact with the housing is not. Oil pooled in the intake or intercooler pipes points to worn seals.
12. 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.
13. Particulate filter and EGR history. Short-trip diesels clog their DPF and EGR systems. The engine may be fine, but ask whether the donor car had DPF warnings, and plan to clean or check your own filter before fitting.
14. Swirl flaps. Check whether the swirl flaps are in place, blanked or removed. Broken swirl flaps are a known cause of engine failure on several BMW diesels, so many owners fit blanking plates when the intake is off.
15. 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.
16. Gearbox-end timing chain. On this engine the timing chain sits at the gearbox end, so replacing it normally means removing the engine. If the chain has not been replaced, the time to do it is before the engine goes into your car.
17. 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.
18. 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.
19. Valvetronic motor and eccentric shaft sensor. The Valvetronic motor and its sensor cause limp-mode faults when they fail. Inspect the connector and the seal around the motor for oil.
20. Injectors and high-pressure fuel pump. Direct-injection engines rely on high-pressure pumps and precise injectors. Ask whether the injectors are original or updated and whether there were fuel pressure faults.
21. Electric water pump. This engine uses an electric water pump. It fails without warning and needs a diagnostic bleeding routine when it is replaced or the system is refilled.

Fitting an engine to your BMW E84 X1

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. Replace the rear timing chain if in doubt. On engines with the chain at the gearbox end, chain work needs the engine out. If the history is unknown, replace the chain, guides and tensioner before fitting.
8. 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.
9. 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.
10. Check the particulate filter. If the old engine failed with oil or coolant entering the exhaust, the DPF may be contaminated. Check its back-pressure before relying on it.
11. 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.
12. 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.
13. 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.
14. Reset VANOS adaptations. Clear the VANOS adaptations so the ECU learns the camshaft positions of the new engine.
15. Teach the Valvetronic limit stops. Run the Valvetronic learning routine so the ECU knows the eccentric shaft limits.
16. 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.
17. 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.

Diagnosing engine trouble in a BMW E84 X1

If your current engine is showing one of these symptoms, this table helps you judge whether it can be repaired or whether a replacement engine 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.

Rattle or whine from the gearbox end. On engines with the timing chain at the rear, a rattle or whine from the back of the engine is the warning sign of chain stretch or guide 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.

Particulate filter warning. Short trips stop the DPF from regenerating. A long motorway run often clears it; a filter that keeps blocking may be covering an injector, EGR or turbo problem.

Sudden metallic noise followed by misfire. On diesels with swirl flaps, a broken flap or screw can enter a cylinder. Stop the engine immediately; continued running usually destroys the piston and head.

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.

Limp mode with a Valvetronic fault. The Valvetronic motor, its eccentric shaft sensor or the wiring. The engine runs on a reduced throttle until it is repaired.

Long cranking before the engine starts. On direct-injection engines, a weak high-pressure fuel pump or leaking injector lets pressure drop when the engine is off.

Repair or replace the engine in your BMW E84 X1?

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

Timing chain work on the engine needs the engine removed. When the chain has failed and damaged valves or pistons, a replacement engine with a sound chain is often the same price as the repair.

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.

Delivery, warranty and payment

Before a BMW E84 X1 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 BMW E84 X1 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 about BMW E84 X1 engines

Will the N47D20C engine fit my BMW E84 X1 xDrive20d?

Yes, if your BMW E84 X1 xDrive20d was built with the N47D20C. BMW used this 2.0 liter (1,995 cc) diesel engine with 135 kW (184 HP) in the E84 X1 xDrive20d from about 2010 to 2015.

In our records the N47D20C is the engine for the E84 X1 xDrive20d, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Your car has all-wheel drive or is an X model, so the sump, the oil pickup and some brackets can differ from the rear-drive cars. Tell us the full model so we send the right set-up.

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

See all N47 Engines · Search N47D20C in the shop

How much is a replacement N47D20C engine for a BMW E84 X1 xDrive20d?

A used N47D20C for the BMW E84 X1 xDrive20d costs from about 1.400 € to 2.350 € 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 N47D20C 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 N47 Engines · Search N47D20C in the shop

Will the N47D20A engine fit my BMW E84 X1 20d?

Yes, if your BMW E84 X1 20d was built with the N47D20A. BMW used this 2.0 liter (1,995 cc) diesel engine with 130 kW (177 HP) in the E84 X1 20d from about 2007 to 2012.

In our records the N47D20A is the engine for the E84 X1 20d, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Your car has all-wheel drive or is an X model, so the sump, the oil pickup and some brackets can differ from the rear-drive cars. Tell us the full model so we send the right set-up.

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

See all N47 Engines · Search N47D20A in the shop

How much is a replacement N47D20A engine for a BMW E84 X1 20d?

A used N47D20A for the BMW E84 X1 20d costs from about 1.250 € to 2.100 € 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 N47D20A 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 N47 Engines · Search N47D20A in the shop

Questions about the engines in the BMW E84 X1

How much does a used BMW N46B20 engine cost?

A used BMW N46B20 engine in our yard usually costs between 1.000 € and 1.700 €. 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 N46 Engines · Search N46B20 in the shop

How long does delivery of an N47D20C 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 N47 Engines · Search N47D20C in the shop

How much is a replacement N47D20A engine for a BMW E91 320d?

A used N47D20A for the BMW E91 320d costs from about 1.250 € to 2.100 € 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 N47D20A 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 N47 Engines · Search N47D20A in the shop

Will the N20B20 engine fit my BMW F32 428i?

Yes, if your BMW F32 428i was built with the N20B20. BMW used this 2.0 liter (1,997 cc) petrol engine with 180 kW (245 HP) in the F32 428i from about 2011 to 2017.

In our records the N20B20 is the engine for the F32 428i, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Also tell us if your F32 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 N20 Engines · Search N20B20 in the shop

Will the N47D20C engine fit my BMW F30 320d?

Yes, if your BMW F30 320d was built with the N47D20C. BMW used this 2.0 liter (1,995 cc) diesel engine with 135 kW (184 HP) in the F30 320d from about 2010 to 2015.

Some F30 320d cars were built with a different engine: the B47D20. These look alike from the outside, so check the code on your engine or send us your VIN.

Also tell us if your F30 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 N47 Engines · Search N47D20C in the shop

Can you check if an N47D20A 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 N47D20A, we confirm that your car was built with this code or with a version that can take it. BMW used it in the BMW E90 320d, BMW E91 320d, BMW E60 520d, BMW E87 120d and BMW E84 X1 20d.

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 N47 Engines · Search N47D20A in the shop

What is the difference between the BMW N47 engines?

BMW N47 2.0 turbo diesel engines for E90, F30, F10, F20 and X1. We list 2 versions: N47D20C (2.0 liter (1,995 cc), 135 kW (184 HP), 2010 to 2015); N47D20A (2.0 liter (1,995 cc), 130 kW (177 HP), 2007 to 2012).

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

The N47 family was used in chassis F30, F31, F10, F11, F20, E84, E90, E91, E60 and E87. 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 N47 Engines

Does a used N47D20A 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 N47 Engines · Search N47D20A in the shop

How much is a replacement N47D20C engine for a BMW F30 320d?

A used N47D20C for the BMW F30 320d costs from about 1.400 € to 2.350 € 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 N47D20C 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 N47 Engines · Search N47D20C in the shop

What should I check on a used BMW N47 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 N47 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.

Ask the desk for more pictures of any listing. We are happy to show the stamp, the ports and the ancillaries before you decide. 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 N47 Engines · Inspection certificate

Which years were BMW N46 engines made?

BMW built the N46 engines we list from about 2004 to 2012. The N46B20 ran from 2004 to 2012.

They went into chassis E90, E87, E60 and E46. 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 N46 Engines

Will the N47D20C engine fit my BMW E90 320d?

Yes, if your BMW E90 320d was built with the N47D20C. BMW used this 2.0 liter (1,995 cc) diesel engine with 135 kW (184 HP) in the E90 320d from about 2010 to 2015.

Some E90 320d cars were built with a different engine: the N47D20A. These look alike from the outside, so check the code on your engine or send us your VIN.

Also tell us if your E90 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 N47 Engines · Search N47D20C in the shop

Can you check if an N20B20 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 N20B20, we confirm that your car was built with this code or with a version that can take it. BMW used it in the BMW F30 328i, BMW F31 328i, BMW F10 528i, BMW F25 X3 xDrive28i and BMW F32 428i and more.

We only reserve an engine once the match is confirmed, so you never pay for the wrong unit. You can reach the Hamburg desk by email at autowerkeengines@gmail.com, or by phone and WhatsApp on +49 15510 030835, Monday to Friday, 9:00 to 16:00 CET.

You can also use the VIN check on our site. It reads the year, the make, the model and the engine from the public vehicle register.

See all N20 Engines · Search N20B20 in the shop

What should I replace when I fit a used N20B20 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 N20 Engines · Search N20B20 in the shop

What is the BMW N47D20A engine?

The BMW N47D20A is a 2.0 liter (1,995 cc) diesel engine from the N47 family. It has an inline 4, DOHC, 16 valve layout with a variable-geometry turbocharger, and makes 130 kW (177 HP) with 350 Nm of torque. BMW built it from 2007 to 2012 and it meets the Euro 5 emission standard.

You find the N47D20A in the BMW E90 320d, BMW E91 320d, BMW E60 520d, BMW E87 120d and BMW E84 X1 20d. What we list: BMW N47 2.0 turbo diesel engines for E90, F30, F10, F20 and X1.

At Autowerke Engines every N47D20A is a real used engine from our yard in Hamburg. The photos on each listing show the actual engine, not a stock picture. The yard checks the code, records what is bolted on, and seals the openings before the engine is offered. Each listing shows the year, the mileage and the price, so you can compare units side by side.

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

See all N47 Engines · Search N47D20A in the shop

Will the N46B20 engine fit my BMW E60 520i?

Yes, if your BMW E60 520i was built with the N46B20. BMW used this 2.0 liter (1,995 cc) petrol engine with 110 kW (150 HP) in the E60 520i from about 2004 to 2012.

In our records the N46B20 is the engine for the E60 520i, 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 N46 Engines · Search N46B20 in the shop

How much is a replacement N20B20 engine for a BMW E89 Z4 sDrive28i?

A used N20B20 for the BMW E89 Z4 sDrive28i costs from about 2.000 € to 3.200 € in our yard. The price depends on the year, the mileage and the parts that come with the engine.

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

A replacement engine is often much cheaper than rebuilding a damaged one, and much faster. The N20B20 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 N20 Engines · Search N20B20 in the shop

What should I replace when I fit a used N47D20A engine?

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

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

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

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

See all N47 Engines · Search N47D20A in the shop

Will the N46B20 engine fit my BMW E90 320i?

Yes, if your BMW E90 320i was built with the N46B20. BMW used this 2.0 liter (1,995 cc) petrol engine with 110 kW (150 HP) in the E90 320i from about 2004 to 2012.

In our records the N46B20 is the engine for the E90 320i, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Also tell us if your E90 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 N46 Engines · Search N46B20 in the shop

Will the N20B20 engine fit my BMW F31 328i?

Yes, if your BMW F31 328i was built with the N20B20. BMW used this 2.0 liter (1,997 cc) petrol engine with 180 kW (245 HP) in the F31 328i from about 2011 to 2017.

In our records the N20B20 is the engine for the F31 328i, which makes the match simple. Still, check the code on your old engine or send us your VIN.

Also tell us if your F31 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 N20 Engines · Search N20B20 in the shop

What comes with a used N46B20 engine?

Each N46B20 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 N46 Engines · Search N46B20 in the shop

Is the BMW N47D20A a diesel or petrol engine?

The N47D20A is a diesel engine. It is a 2.0 liter (1,995 cc) inline 4, DOHC, 16 valve unit with a variable-geometry turbocharger, and it was built to the Euro 5 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 N47 Engines · Search N47D20A in the shop

Will the N20B20 engine fit my BMW F10 528i?

Yes, if your BMW F10 528i was built with the N20B20. BMW used this 2.0 liter (1,997 cc) petrol engine with 180 kW (245 HP) in the F10 528i from about 2011 to 2017.

Some F10 528i cars were built with a different engine: the N53B30. These look alike from the outside, so check the code on your engine or send us your VIN.

Also tell us if your F10 has a manual or an automatic gearbox. The flywheel or the flex plate and some sensors depend on it.

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

See all N20 Engines · Search N20B20 in the shop

What is the difference between the N47D20A and other N47 engines?

The N47D20A makes 130 kW (177 HP) and 350 Nm. The other N47 engines are: N47D20C with 135 kW (184 HP) and 380 Nm (2010 to 2015).

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 N47 Engines · Search N47D20A in the shop

What should I replace when I fit a used N47D20C engine?

A used engine lasts longest when it starts life in your car with fresh fluids and new seals. Clean the intercooler and the intake pipes, and fill the turbo oil feed with clean oil before the first start, so the turbo never runs dry. Fit a new oil filter and fresh oil of the grade BMW lists for this engine, and refill the coolant with the correct BMW antifreeze mix. Use new gaskets for the exhaust manifold, the intake and the sump plug, and check every hose clip before the first start.

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

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

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

See all N47 Engines · Search N47D20C in the shop

Which cars use the BMW N20B20 engine?

BMW fitted the N20B20 to the BMW F30 328i, BMW F31 328i, BMW F10 528i, BMW F25 X3 xDrive28i, BMW F32 428i, BMW F20 125i and BMW E89 Z4 sDrive28i. These cars were built with this engine from about 2011 to 2017.

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 N20B20 is the only N20 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 N20 Engines · Search N20B20 in the shop

Glossary

• VANOS — BMW's variable camshaft timing system. It adjusts the intake camshaft (single VANOS) or both camshafts (double VANOS) to improve torque and emissions.
• Valvetronic — BMW's variable valve lift system. It controls engine load with the intake valves instead of a throttle plate, improving economy.
• Direct injection — Fuel is injected directly into the cylinder instead of the intake port. It improves efficiency but can cause carbon build-up on the intake valves.
• Wastegate — A valve that lets exhaust gas bypass the turbine to control boost pressure. Worn wastegates rattle and can cause boost faults.
• DPF — Diesel particulate filter. It traps soot and burns it off during regeneration, which needs longer journeys.
• EGR — Exhaust gas recirculation. It feeds some exhaust back into the intake to reduce NOx emissions but builds up soot.
• Swirl flaps — Flaps in the intake manifold that create swirl at low revs. On some BMW diesels they can break and enter the engine.
• Common rail — A diesel injection system with a high-pressure fuel rail feeding all injectors. It allows precise, multiple injections per cycle.
• Long block — An engine with the block, head and internals but without most ancillaries such as manifolds, turbo, alternator or starter.
• Dressed engine — An engine with most ancillaries fitted, ready to install with fewer parts transferred.
• Compression test — A measurement of the pressure each cylinder builds when cranked. Even readings show healthy rings and valves.
• Leak-down test — A test that pressurises each cylinder and measures how much air escapes, showing where any leak is.
• LCI — Life Cycle Impulse, BMW's name for a mid-life update. Engines often change at the LCI.
• xDrive — BMW's all-wheel-drive system. xDrive cars often use a different sump and oil pickup.
• DME — Digital Motor Electronics, BMW's name for the engine control unit.
• CAS, FEM and BDC — The immobiliser and body modules that must be matched to the engine control unit on modern BMWs.
• Timing chain tensioner — A hydraulic or spring device that keeps the timing chain tight. Worn tensioners cause cold-start rattle.
• Rear-mounted timing chain — A timing chain at the gearbox end of the engine. Replacing it normally requires removing the engine.
• Electric water pump — A water pump driven by an electric motor. It needs a diagnostic bleeding routine when the system is refilled.
• TU — Technical Update, BMW's suffix for a revised version of an engine.

Our verdict

The BMW E84 X1 offers a wide choice of engines, and the right replacement depends on your exact model, build date and gearbox. Confirm the code with your VIN, choose a unit with known history, replace the known weak parts while it is out, and the car will be back on the road for years.

See every BMW E84 X1 engine in stock, or ask the Hamburg desk to check your VIN.

Model-by-model engine guides

• BMW X1 28i (E84) engine: which one, problems and replacement
• BMW X1 18d (E84) engine: which one, problems and replacement