The N52 is BMW's naturally aspirated 2.5 and 3.0 litre straight-six from 2004 to 2015. It powered the E90 325i and 330i, the E60 525i and 530i, the E87 130i, the E83 and F25 X3, the E70 X5 3.0si, the E85 Z4 and many more. The N51 is the low-emission US version.
It is one of BMW's most reliable modern engines. Most problems are bolt-on parts, which makes a used N52 a very sensible replacement.
- Production: 2004–2015
- Versions covered: N52B25, N52B30 and N51B30
- Output range: 218–258 hp
- Fuel and layout: petrol inline-6
- Fitted to: 11 BMW models across 6 chassis generations
- In our stock now: 261 units from 601,00 € — browse all N52 engines
The N52 at a glance
The table lists every N52 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 |
|---|---|---|---|---|---|
| N52B25 | 2.5 L | Inline-6, naturally aspirated | 218 hp | 250 Nm | 2004–2011 |
| N52B30 | 3.0 L | Inline-6, naturally aspirated | 258 hp | 300 Nm | 2004–2015 |
| N51B30 | 3.0 L | Inline-6, naturally aspirated | 230 hp | 270 Nm | 2006–2011 |
Across 3 versions, output runs from 218 to 258 hp. The spread reflects different capacities, tuning for different markets and the technical updates BMW made over 12 years of production.
History of the N52
BMW introduced the N52 with a magnesium-aluminium composite block, Valvetronic, double VANOS and an electric water pump. The N52N update of 2007 revised the intake. Production ran until 2015 in some markets.
2004: the N52B25 arrived with 2.5 L and 218 hp in the BMW E90 325i, BMW E60 525i and BMW E85 Z4 2.5si.
2004: the N52B30 arrived with 3.0 L and 258 hp in the BMW E90 330i, BMW E60 530i and BMW E70 X5 30i. Compared with the N52B25, it added 40 hp.
2006: the N51B30 arrived with 3.0 L and 230 hp in the BMW E90 328i and BMW E60 528i. It was a lower-output version for smaller or more economical models.
Every N52 version explained
N52B25 (2.5 L, 218 hp)
N52B25: 2.5 L, inline-6, petrol, naturally aspirated. Output is 218 hp with 250 Nm of torque, and production ran from 2004 to 2011. That is about 87 hp and 100 Nm per litre, a strong figure for a road engine of its era. Within the N52 family, the N52B30 (258 hp) and N51B30 (230 hp) are more powerful. It was fitted to the BMW E90 325i, BMW E60 525i, BMW E85 Z4 2.5si and BMW E83 X3 2.5si. See every N52B25 in stock.
Reading the code: N marks an N-series code, the generation of BMW engines introduced from 2001; 52 is the family number; B stands for petrol (from the German Benzin); 25 is the capacity in decilitres, so 2.5 litres.
We have 129 N52B25 units in stock, priced from 601,00 € to 2.300,00 €.
N52B30 (3.0 L, 258 hp)
The N52B30 is a 3.0 L inline-6 petrol engine, naturally aspirated, rated at 258 hp and 300 Nm. BMW built it from 2004 to 2015. That is about 86 hp and 100 Nm per litre, a strong figure for a road engine of its era. Within the N52 family, it is the most powerful version, while the N52B25 (218 hp) and N51B30 (230 hp) are milder. It was fitted to the BMW E90 330i, BMW E60 530i, BMW E70 X5 30i, BMW E89 Z4 30i and BMW E83 X3 3.0si. See every N52B30 in stock.
Reading the code: N marks an N-series code, the generation of BMW engines introduced from 2001; 52 is the family number; B stands for petrol (from the German Benzin); 30 is the capacity in decilitres, so 3.0 litres.
We have 128 N52B30 units in stock, priced from 1.861,00 € to 2.949,00 €.
N51B30 (3.0 L, 230 hp)
Built from 2006 to 2011, the N51B30 displaces 3.0 L in an inline-6 layout and is naturally aspirated. It produces 230 hp and 270 Nm on petrol. That is about 77 hp and 90 Nm per litre, a strong figure for a road engine of its era. Within the N52 family, the N52B30 (258 hp) is more powerful, while the N52B25 (218 hp) is milder. It was fitted to the BMW E90 328i and BMW E60 528i.
Reading the code: N marks an N-series code, the generation of BMW engines introduced from 2001; 51 is the family number; B stands for petrol (from the German Benzin); 30 is the capacity in decilitres, so 3.0 litres.
We have 3 N51B30 units in stock, priced from 1.409,00 € to 1.537,00 €.
Which cars use the N52
The N52 was fitted to 11 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 E90 fifth 3 Series saloon (2005–2012)
In the fifth 3 Series saloon, built 2005–2012 as a saloon, the N52 powered the 325i (N52B25, 218 hp), 330i (N52B30, 258 hp) and 328i (N51B30, 230 hp).
For an E90, confirm the production date as well as the model: BMW often changed engine versions at the mid-life update. We currently have 110 N52 units from E90 donor cars. All E90 engines in stock.
The 325i uses the N52B25. BMW 325i engines for sale.
The 330i uses the N52B30. BMW 330i engines for sale.
The 328i uses the N51B30. BMW 328i engines for sale.
BMW E60 fifth 5 Series (2003–2010)
In the fifth 5 Series, built 2003–2010 as a saloon, the N52 powered the 525i (N52B25, 218 hp), 530i (N52B30, 258 hp) and 528i (N51B30, 230 hp).
The quickest way to confirm the right N52 for your E60 is to send us the VIN; we check the engine code, the gearbox and the drive type. We currently have 107 N52 units from E60 donor cars. All E60 engines in stock.
The 525i uses the N52B25. BMW 525i engines for sale.
The 530i uses the N52B30. BMW 530i engines for sale.
The 528i uses the N51B30. BMW 528i engines for sale.
BMW E85 first Z4 roadster (2002–2008)
In the first Z4 roadster, built 2002–2008 as a roadster, the N52 powered the Z4 2.5si (N52B25, 218 hp).
The quickest way to confirm the right N52 for your E85 is to send us the VIN; we check the engine code, the gearbox and the drive type. All E85 engines in stock.
The Z4 2.5si uses the N52B25. BMW Z4 engines for sale.
BMW E83 first X3 (2003–2010)
In the first X3, built 2003–2010 as an SAV, the N52 powered the X3 2.5si (N52B25, 218 hp) and X3 3.0si (N52B30, 258 hp).
The quickest way to confirm the right N52 for your E83 is to send us the VIN; we check the engine code, the gearbox and the drive type. All E83 engines in stock.
The X3 2.5si uses the N52B25. BMW X3 engines for sale.
The X3 3.0si uses the N52B30. BMW X3 engines for sale.
BMW E70 second X5 (2006–2013)
In the second X5, built 2006–2013 as an SAV, the N52 powered the X5 30i (N52B30, 258 hp).
For an E70, confirm the production date as well as the model: BMW often changed engine versions at the mid-life update. All E70 engines in stock.
The X5 30i uses the N52B30. BMW X5 engines for sale.
BMW E89 second Z4 (2009–2016)
In the second Z4, built 2009–2016 as a folding hard-top roadster, the N52 powered the Z4 30i (N52B30, 258 hp).
For an E89, confirm the production date as well as the model: BMW often changed engine versions at the mid-life update. All E89 engines in stock.
The Z4 30i uses the N52B30. BMW Z4 engines for sale.
Will an N52 fit my BMW? Model-by-model answers
Short answers for every model that left the factory with an N52, with prices from our current stock.
Will the N52B25 fit my BMW E85 Z4 2.5si?
Yes, the BMW E85 Z4 2.5si left the factory with the N52B25, so an N52B25 from another car is the direct replacement. The first Z4 roadster was built 2002–2008, and the N52B25 was produced 2004–2011, 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 E85 Z4 2.5si?
We have 129 N52B25 engines in stock, priced from 601,00 € to 2.300,00 €. 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 N52B25 fit my BMW E83 X3 2.5si?
The N52B25 is the original engine for the BMW E83 X3 2.5si, which makes it the straightforward choice. The first X3 was built 2003–2010, and the N52B25 was produced 2004–2011, 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 E83 X3 2.5si?
We have 129 N52B25 engines in stock, priced from 601,00 € to 2.300,00 €. 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 N52B30 fit my BMW E70 X5 30i?
Yes, the BMW E70 X5 30i left the factory with the N52B30, so an N52B30 from another car is the direct replacement. The second X5 was built 2006–2013, and the N52B30 was produced 2004–2015, 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 E70 X5 30i?
We have 128 N52B30 engines in stock, priced from 1.861,00 € to 2.949,00 €. 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 N52B30 fit my BMW E89 Z4 30i?
The N52B30 is the original engine for the BMW E89 Z4 30i, which makes it the straightforward choice. The second Z4 was built 2009–2016, and the N52B30 was produced 2004–2015, 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 E89 Z4 30i?
We have 128 N52B30 engines in stock, priced from 1.861,00 € to 2.949,00 €. 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 N52B30 fit my BMW E83 X3 3.0si?
Yes, the BMW E83 X3 3.0si left the factory with the N52B30, so an N52B30 from another car is the direct replacement. The first X3 was built 2003–2010, and the N52B30 was produced 2004–2015, 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 E83 X3 3.0si?
We have 128 N52B30 engines in stock, priced from 1.861,00 € to 2.949,00 €. 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 N51B30 fit my BMW E90 328i?
Yes, the BMW E90 328i left the factory with the N51B30, so an N51B30 from another car is the direct replacement. The fifth 3 Series saloon was built 2005–2012, and the N51B30 was produced 2006–2011, 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 E90 328i?
We have 1 N51B30 engine from E90 donor cars, priced from 1.461,00 €. 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 N51B30 fit my BMW E60 528i?
Yes, the BMW E60 528i left the factory with the N51B30, so an N51B30 from another car is the direct replacement. The fifth 5 Series was built 2003–2010, and the N51B30 was produced 2006–2011, 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 E60 528i?
We have 1 N51B30 engine from E60 donor cars, priced from 1.409,00 €. 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.
N52 model-year guide
Use this year-by-year guide to see which N52 versions were in production when your car was built.
2004 — N52B25 and N52B30 were in production. New this year: N52B25 and N52B30.
2005 — N52B25 and N52B30 were in production.
2006 — N52B25, N52B30 and N51B30 were in production. New this year: N51B30.
2007 — N52B25, N52B30 and N51B30 were in production.
2008 — N52B25, N52B30 and N51B30 were in production.
2009 — N52B25, N52B30 and N51B30 were in production.
2010 — N52B25, N52B30 and N51B30 were in production.
2011 — N52B25, N52B30 and N51B30 were in production. Last year for N52B25 and N51B30.
2012 — N52B30 was in production.
2013 — N52B30 was in production.
2014 — N52B30 was in production.
2015 — N52B30 was in production. Last year for N52B30.
Common N52 problems and what to check
No engine is perfect. These are the faults our workshop sees most often on the N52, what causes them and how to check a used unit before you buy.
Hydraulic lifter tick
Some engines tick on cold start because lifters drain down.
How to check: Listen on a cold start; a tick that fades is normal-ish.
Electric water pump and thermostat
The pump fails around 100,000 km with little warning.
How to check: Check for cooling codes and service history.
Valve cover gasket and eccentric shaft sensor
The plastic valve cover leaks and its sensor gasket fails.
How to check: Look for oil on the exhaust side.
Oil filter housing gasket
Leaks oil down the block and onto belts.
How to check: Check below the filter housing.
VANOS solenoids
Dirty solenoids cause rough idle and codes.
How to check: Read the VANOS adaption values.
Diagnosing a failing N52: 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 N52 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. |
| Rattle for a few seconds after a cold start | The classic sign of a weak timing chain tensioner or stretched chain. |
| Poor low-down torque and uneven idle | VANOS seals or solenoids. |
| Limp mode with a Valvetronic fault | The Valvetronic motor, its eccentric shaft sensor or the wiring. |
Knocking from the bottom of the engine. A deep knock that rises with engine speed usually means worn rod or main bearings. Stop driving: bearing failure ends with a broken connecting rod. A used engine is normally the most economical fix once the bottom end is damaged.
Overheating or losing coolant. Coolant loss without visible leaks points to a head gasket or a cracked head; visible leaks point to the water pump, hoses, thermostat housing or expansion tank. Overheating should be fixed before it warps the head.
White smoke that smells sweet. Coolant burning in the cylinders, from a head gasket, a cracked head or, on diesels, a leaking EGR cooler. Check the coolant level and look for oil in the coolant.
Blue smoke. Oil burning in the cylinders. A puff on start-up points to valve stem seals; constant smoke under load points to piston rings or, on turbo engines, turbo seals.
Rough idle or misfire. Ignition coils, spark plugs, injectors and vacuum leaks are the usual causes. A misfire on one cylinder that moves when you swap coils is a coil; one that stays is a plug, injector or compression problem.
Loss of power. Start with the simple things: air filter, boost leaks on turbo engines, fuel pressure and fault codes. A gradual loss with poor compression on a test points to internal wear.
Rattle for a few seconds after a cold start. The classic sign of a weak timing chain tensioner or stretched chain. It must be checked quickly: a chain that jumps a tooth can bend valves.
Poor low-down torque and uneven idle. VANOS seals or solenoids. The engine may run well at high revs but feel flat and lumpy at low speed.
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.
Repair or replace your N52?
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 N52 properly costs more than a good used unit.
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.
N52 maintenance and running costs
| Item | Recommendation |
|---|---|
| Engine oil | 5W-30 BMW Longlife-01 or 04, about 6.5 litres. |
| Timing drive | Timing chain at the front. |
| Service interval | Oil every 10,000 to 15,000 km. |
Fit a new water pump and thermostat with any used N52; they are on the outside and cheap compared with labour later.
Shorter oil intervals than the factory maximum are the cheapest insurance for an N52. Most of the expensive faults on BMW engines start with tired oil.
Cooling parts are consumables on this engine. Plan to replace the water pump, thermostat and expansion tank every 100,000 km or so, before they fail.
Buying a used N52: the full checklist
Work through these points before you order a used N52, 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.
- Timing chain noise. Listen for a rattle at the front of the engine for the first seconds after a cold start. On an engine that cannot be run, look at the chain guides through the oil filler or with the valve cover off.
- VANOS operation. Rough idle, a rattle from the front of the head and a loss of torque at low revs point to VANOS seals or solenoids. These are serviceable parts and are easier to renew with the engine out.
- Double VANOS units and solenoids. Ask for the adaptation values or fault history if the engine was running. Solenoids are inexpensive and are often replaced as a matter of course on a used engine.
- 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.
- 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.
N52 prices: what you should pay
We currently hold 261 N52 engines. The cheapest is 601,00 €, the most expensive 2.949,00 €, and half of them cost less than 2.096,00 €.
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.
N52 prices by model year
| Model years | Units | From | Median | To |
|---|---|---|---|---|
| 2005–2009 | 173 | 601,00 € | 2.097,00 € | 2.949,00 € |
| 2010–2014 | 84 | 1.421,00 € | 2.116,00 € | 2.935,00 € |
Engines from 2005–2009 have a median of 2.097,00 €, while units from 2010–2014 sit at 2.116,00 €. Newer engines usually cost more because they come from younger donor cars with lower mileage and later updates.
N52 prices by mileage
| Donor mileage | Units | From | Median |
|---|---|---|---|
| under 50,000 km | 41 | 1.421,00 € | 2.096,00 € |
| 50,000 to 100,000 km | 66 | 1.461,00 € | 2.126,00 € |
| 100,000 to 150,000 km | 81 | 1.423,00 € | 2.145,00 € |
| over 150,000 km | 68 | 1.465,00 € | 2.014,00 € |
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.
N52 engines in stock now
Here is a selection of N52 engines currently on our shelves, photographed in the yard. Click any of them for the full photographs, mileage and specification.
BMW E60 530i N52B30 Engine 2011, 162,300 km2.812,00 €
BMW E60 525i N52B25 Engine 2005, 186,700 km1.906,00 €
BMW E60 530i N52B30 Engine 2010, 115,200 km2.406,00 €
BMW E60 530i N52B30 Engine 2009, 104,100 km1.903,00 €
BMW E90 325i N52B25 Engine 2010, 181,900 km2.116,00 €
BMW E91 325i N52B25 Engine 2007, 207,600 km1.624,00 €
BMW E91 325i N52B25 Engine 2006, 149,800 km2.072,00 €
BMW E90 330i N52B30 Engine 2005, 133,900 km2.740,00 €
BMW E90 330i N52B30 Engine 2007, 206,000 km2.827,00 €
BMW E91 325i N52B25 Engine 2005, 96,700 km1.513,00 €
BMW E60 530i N52B30 Engine 2008, 30,200 km2.186,00 €
BMW E60 530i N52B30 Engine 2007, 91,400 km2.551,00 €BMW E60 530i N52B30 Engine 2011, 162,300 km — 2.812,00 €, reduced from 4.200,00 €. It comes from a 2011 donor car with 162,300 km, and 9 units are available. We can confirm fitment against your VIN the same day.
BMW E60 525i N52B25 Engine 2005, 186,700 km — 1.906,00 €, reduced from 2.800,00 €. It comes from a 2005 donor car with 186,700 km, and 24 units are available. Ask the desk for compression figures or extra photographs before you order.
BMW E60 530i N52B30 Engine 2010, 115,200 km — 2.406,00 €, reduced from 3.450,00 €. It comes from a 2010 donor car with 115,200 km, and 6 units are available. The listing shows every side of the engine and the fitted parts.
BMW E60 530i N52B30 Engine 2009, 104,100 km — 1.903,00 €, reduced from 2.800,00 €. It comes from a 2009 donor car with 104,100 km, and 7 units are available. We can confirm fitment against your VIN the same day.
BMW E90 325i N52B25 Engine 2010, 181,900 km — 2.116,00 €, reduced from 3.350,00 €. It comes from a 2010 donor car with 181,900 km, and 13 units are available. The listing shows every side of the engine and the fitted parts.
BMW E91 325i N52B25 Engine 2007, 207,600 km — 1.624,00 €, reduced from 2.800,00 €. It comes from a 2007 donor car with 207,600 km, and 21 units are available. We can confirm fitment against your VIN the same day.
BMW E91 325i N52B25 Engine 2006, 149,800 km — 2.072,00 €, reduced from 3.250,00 €. It comes from a 2006 donor car with 149,800 km, and 25 units are available. We can confirm fitment against your VIN the same day.
BMW E90 330i N52B30 Engine 2005, 133,900 km — 2.740,00 €, reduced from 3.450,00 €. It comes from a 2005 donor car with 133,900 km, and 6 units are available. Ask the desk for compression figures or extra photographs before you order.
BMW E90 330i N52B30 Engine 2007, 206,000 km — 2.827,00 €, reduced from 3.500,00 €. It comes from a 2007 donor car with 206,000 km, and 30 units are available. We can confirm fitment against your VIN the same day.
BMW E91 325i N52B25 Engine 2005, 96,700 km — 1.513,00 €, reduced from 2.550,00 €. It comes from a 2005 donor car with 96,700 km, and 15 units are available. We can confirm fitment against your VIN the same day.
BMW E60 530i N52B30 Engine 2008, 30,200 km — 2.186,00 €, reduced from 3.550,00 €. It comes from a 2008 donor car with 30,200 km, and 8 units are available. We can confirm fitment against your VIN the same day.
BMW E60 530i N52B30 Engine 2007, 91,400 km — 2.551,00 €, reduced from 3.750,00 €. It comes from a 2007 donor car with 91,400 km, and 25 units are available. The listing shows every side of the engine and the fitted parts.
Fitting a replacement N52
These are the steps we recommend to every workshop fitting one of our N52 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.
- 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.
- 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.
- Reset VANOS adaptations. Clear the VANOS adaptations so the ECU learns the camshaft positions of the new engine.
- Teach the Valvetronic limit stops. Run the Valvetronic learning routine so the ECU knows the eccentric shaft limits.
- 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
Gains come from intake and exhaust work and a remap. Owners wanting more usually move to an N54 or N55 swap.
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.
N52 compared with similar BMW engines
Buyers often compare the N52 with these engines. Here is how they line up.
| Engine | Power | Years | Median price in stock |
|---|---|---|---|
| N52 | 218–258 hp | 2004–2015 | 2.096,00 € |
| N53 | 190–272 hp | 2007–2013 | 2.114,00 € |
| N54 | 306–306 hp | 2006–2016 | 3.595,00 € |
| N55 | 306–326 hp | 2009–2017 | 4.025,00 € |
The N53 reaches higher outputs (up to 272 hp against 258 hp) and uses timing chain at the front. Its best-known faults are piezo injectors and ignition coils. Read the N53 guide.
The N54 reaches higher outputs (up to 306 hp against 258 hp) and uses timing chain at the front. Its best-known faults are high-pressure fuel pump and wastegate rattle. Read the N54 guide.
The N55 reaches higher outputs (up to 326 hp against 258 hp) and uses timing chain at the front. Its best-known faults are oil filter housing gasket and valve cover gasket. Read the N55 guide.
Delivery, warranty and payment
Every N52 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.
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.
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 N52 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 N52
Will the N52B30 engine fit my BMW E60 530i?
Yes, if your BMW E60 530i was built with the N52B30. BMW used this 3.0 liter (2,996 cc) petrol engine with 190 kW (258 HP) in the E60 530i from about 2005 to 2011.
Some E60 530i cars were built with a different engine: the M54B30 and N53B30. These look alike from the outside, so check the code on your 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 N52 Engines · Search N52B30 in the shop
How much is a replacement N52B30 engine for a BMW E60 530i?
A used N52B30 for the BMW E60 530i costs from about 1.800 € to 2.950 € 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 N52B30 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 N52 Engines · Search N52B30 in the shop
Will the N52B25 engine fit my BMW E60 525i?
Yes, if your BMW E60 525i was built with the N52B25. BMW used this 2.5 liter (2,497 cc) petrol engine with 160 kW (218 HP) in the E60 525i from about 2005 to 2011.
Some E60 525i cars were built with a different engine: the M54B25. These look alike from the outside, so check the code on your 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 N52 Engines · Search N52B25 in the shop
How much is a replacement N52B25 engine for a BMW E60 525i?
A used N52B25 for the BMW E60 525i 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 N52B25 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 N52 Engines · Search N52B25 in the shop
Will the N52B30 engine fit my BMW E90 330i?
Yes, if your BMW E90 330i was built with the N52B30. BMW used this 3.0 liter (2,996 cc) petrol engine with 190 kW (258 HP) in the E90 330i from about 2005 to 2011.
Some E90 330i 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 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 N52 Engines · Search N52B30 in the shop
How much is a replacement N52B30 engine for a BMW E90 330i?
A used N52B30 for the BMW E90 330i costs from about 1.800 € to 2.950 € 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 N52B30 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 N52 Engines · Search N52B30 in the shop
Will the N52B30 engine fit my BMW E92 330i?
Yes, if your BMW E92 330i was built with the N52B30. BMW used this 3.0 liter (2,996 cc) petrol engine with 190 kW (258 HP) in the E92 330i from about 2005 to 2011.
Some E92 330i 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 E92 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 N52 Engines · Search N52B30 in the shop
How much is a replacement N52B30 engine for a BMW E92 330i?
A used N52B30 for the BMW E92 330i costs from about 1.800 € to 2.950 € 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 N52B30 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 N52 Engines · Search N52B30 in the shop
Will the N52B30 engine fit my BMW E85 Z4 3.0si?
Yes, if your BMW E85 Z4 3.0si was built with the N52B30. BMW used this 3.0 liter (2,996 cc) petrol engine with 190 kW (258 HP) in the E85 Z4 3.0si from about 2005 to 2011.
In our records the N52B30 is the engine for the E85 Z4 3.0si, which makes the match simple. Still, check the code on your old engine or send us your VIN.
Also tell us if your E85 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 N52 Engines · Search N52B30 in the shop
How much is a replacement N52B30 engine for a BMW E85 Z4 3.0si?
A used N52B30 for the BMW E85 Z4 3.0si costs from about 1.800 € to 2.950 € 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 N52B30 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 N52 Engines · Search N52B30 in the shop
Will the N52B30 engine fit my BMW E87 130i?
Yes, if your BMW E87 130i was built with the N52B30. BMW used this 3.0 liter (2,996 cc) petrol engine with 190 kW (258 HP) in the E87 130i from about 2005 to 2011.
In our records the N52B30 is the engine for the E87 130i, which makes the match simple. Still, check the code on your old engine or send us your VIN.
Also tell us if your E87 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 N52 Engines · Search N52B30 in the shop
How much is a replacement N52B30 engine for a BMW E87 130i?
A used N52B30 for the BMW E87 130i costs from about 1.800 € to 2.950 € 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 N52B30 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 N52 Engines · Search N52B30 in the shop
Will the N52B30 engine fit my BMW E70 X5 3.0si?
Yes, if your BMW E70 X5 3.0si was built with the N52B30. BMW used this 3.0 liter (2,996 cc) petrol engine with 190 kW (258 HP) in the E70 X5 3.0si from about 2005 to 2011.
In our records the N52B30 is the engine for the E70 X5 3.0si, 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 N52 Engines · Search N52B30 in the shop
How much is a replacement N52B30 engine for a BMW E70 X5 3.0si?
A used N52B30 for the BMW E70 X5 3.0si costs from about 1.800 € to 2.950 € 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 N52B30 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 N52 Engines · Search N52B30 in the shop
Will the N52B25 engine fit my BMW E90 325i?
Yes, if your BMW E90 325i was built with the N52B25. BMW used this 2.5 liter (2,497 cc) petrol engine with 160 kW (218 HP) in the E90 325i from about 2005 to 2011.
In our records the N52B25 is the engine for the E90 325i, 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 N52 Engines · Search N52B25 in the shop
How much is a replacement N52B25 engine for a BMW E90 325i?
A used N52B25 for the BMW E90 325i 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 N52B25 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 N52 Engines · Search N52B25 in the shop
Will the N52B25 engine fit my BMW E91 325i?
Yes, if your BMW E91 325i was built with the N52B25. BMW used this 2.5 liter (2,497 cc) petrol engine with 160 kW (218 HP) in the E91 325i from about 2005 to 2011.
In our records the N52B25 is the engine for the E91 325i, which makes the match simple. Still, check the code on your old engine or send us your VIN.
Also tell us if your E91 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 N52 Engines · Search N52B25 in the shop
How much is a replacement N52B25 engine for a BMW E91 325i?
A used N52B25 for the BMW E91 325i 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 N52B25 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 N52 Engines · Search N52B25 in the shop
Will the N52B25 engine fit my BMW E87 125i?
Yes, if your BMW E87 125i was built with the N52B25. BMW used this 2.5 liter (2,497 cc) petrol engine with 160 kW (218 HP) in the E87 125i from about 2005 to 2011.
In our records the N52B25 is the engine for the E87 125i, which makes the match simple. Still, check the code on your old engine or send us your VIN.
Also tell us if your E87 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 N52 Engines · Search N52B25 in the shop
How much is a replacement N52B25 engine for a BMW E87 125i?
A used N52B25 for the BMW E87 125i 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 N52B25 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 N52 Engines · Search N52B25 in the shop
What is the BMW N52B30 engine?
The BMW N52B30 is a 3.0 liter (2,996 cc) petrol engine from the N52 family. It has an inline 6, DOHC, 24 valve layout with no turbo (naturally aspirated), and makes 190 kW (258 HP) with 310 Nm of torque. BMW built it from 2005 to 2011 and it meets the Euro 4 emission standard.
You find the N52B30 in the BMW E90 330i, BMW E92 330i, BMW E60 530i, BMW E85 Z4 3.0si, BMW E87 130i and BMW E70 X5 3.0si. What we list: BMW N52 naturally aspirated petrol engines for E90, E60 and Z4.
At Autowerke Engines every N52B30 is a real used engine from our yard in Hamburg. Each engine in the yard is inspected in Hamburg. The code is matched to the listing, the parts on the engine are recorded, the openings are sealed and the real unit is photographed. Each listing shows the year, the mileage and the price, so you can compare units side by side.
Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.
See all N52 Engines · Search N52B30 in the shop
How much does a used BMW N52B30 engine cost?
A used BMW N52B30 engine in our yard usually costs between 1.800 € and 2.950 €. 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 N52 Engines · Search N52B30 in the shop
Which cars use the BMW N52B30 engine?
BMW fitted the N52B30 to the BMW E90 330i, BMW E92 330i, BMW E60 530i, BMW E85 Z4 3.0si, BMW E87 130i and BMW E70 X5 3.0si. These cars were built with this engine from about 2005 to 2011.
The badge on the boot is not enough to be sure. The same model name can hide two different engines, for example after a facelift or a change in emission rules. Always read the engine code stamped on the block, or look it up with your VIN.
Other engines in the same N52 family are the N52B25 (218 HP). They look alike but differ in power, parts and electronics, so they are not always a direct swap.
Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.
See all N52 Engines · Search N52B30 in the shop
How much power and torque does the BMW N52B30 have?
From the factory the BMW N52B30 makes 190 kW (258 HP) and 310 Nm of torque. It is a 3.0 liter (2,996 cc) inline 6, DOHC, 24 valve petrol engine with no turbo (naturally aspirated).
Without a turbo, the power builds smoothly with the revs. A clean air intake, healthy ignition and the correct fuel are key to getting the full figure.
A used engine reaches its factory numbers when it is fitted with the matching engine computer and software, and serviced with the right oil and filters. If the engine computer from your car is a different version, a specialist may need to code it.
Every N52B30 on our site lists its year and mileage. Ask the desk for more pictures of any listing. We are happy to show the stamp, the ports and the ancillaries before you decide.
See all N52 Engines · Search N52B30 in the shop
How do I know a used N52B30 engine is in good shape?
Before a unit is listed, the yard checks the engine code against the listing, writes down the parts fitted to it, seals every opening and photographs the real engine you will receive. An inspection certificate for the unit can travel with the order when you ask for it.
When you look at a listing, check the recorded mileage, the year and the photos of the ports and the stamp. Ask for photos of anything you want to see closer. You can ask for extra photos, a close-up of the code stamp or a short video before you order.
On a petrol engine like the N52B30, a careful fitter will also look at the spark plugs, the coils and the timing side before the engine goes in.
If the engine fails inside under normal use, the warranty covers you. Eligible engines come with a 12 months warranty from the delivery date. It covers internal mechanical failure under normal use and correct fitting by a qualified mechanic or workshop.
See all N52 Engines · Search N52B30 in the shop
What comes with a used N52B30 engine?
Each N52B30 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 N52 Engines · Search N52B30 in the shop
Is the BMW N52B30 a diesel or petrol engine?
The N52B30 is a petrol engine. It is a 3.0 liter (2,996 cc) inline 6, DOHC, 24 valve unit with no turbo (naturally aspirated), and it was built to the Euro 4 emission standard.
The emission standard matters for registration and for low-emission zones in many cities. When you replace an engine with the same code, the car keeps the same paperwork and the same emission class.
Petrol versions need the correct catalytic converters and oxygen sensors on the car to stay legal and to keep the engine computer happy. Reuse the parts from your car if they are in good condition.
If you are not sure which version you need, send us your VIN. We tell you the right code for free.
See all N52 Engines · Search N52B30 in the shop
What is the difference between the N52B30 and other N52 engines?
The N52B30 makes 190 kW (258 HP) and 310 Nm. The other N52 engines are: N52B25 with 160 kW (218 HP) and 250 Nm (2005 to 2011).
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 N52 Engines · Search N52B30 in the shop
How long does delivery of an N52B30 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 N52 Engines · Search N52B30 in the shop
What should I replace when I fit a used N52B30 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 N52 Engines · Search N52B30 in the shop
Does a used N52B30 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 N52 Engines · Search N52B30 in the shop
Can you check if an N52B30 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 N52B30, 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 330i, BMW E92 330i, BMW E60 530i, BMW E85 Z4 3.0si and BMW E87 130i 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 N52 Engines · Search N52B30 in the shop
What is the BMW N52B25 engine?
The BMW N52B25 is a 2.5 liter (2,497 cc) petrol engine from the N52 family. It has an inline 6, DOHC, 24 valve layout with no turbo (naturally aspirated), and makes 160 kW (218 HP) with 250 Nm of torque. BMW built it from 2005 to 2011 and it meets the Euro 4 emission standard.
You find the N52B25 in the BMW E90 325i, BMW E91 325i, BMW E60 525i and BMW E87 125i. What we list: BMW N52 naturally aspirated petrol engines for E90, E60 and Z4.
At Autowerke Engines every N52B25 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 N52 Engines · Search N52B25 in the shop
How much does a used BMW N52B25 engine cost?
A used BMW N52B25 engine in our yard usually costs between 1.400 € and 2.350 €. 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 N52 Engines · Search N52B25 in the shop
Which cars use the BMW N52B25 engine?
BMW fitted the N52B25 to the BMW E90 325i, BMW E91 325i, BMW E60 525i and BMW E87 125i. These cars were built with this engine from about 2005 to 2011.
The badge on the boot is not enough to be sure. The same model name can hide two different engines, for example after a facelift or a change in emission rules. Always read the engine code stamped on the block, or look it up with your VIN.
Other engines in the same N52 family are the N52B30 (258 HP). They look alike but differ in power, parts and electronics, so they are not always a direct swap.
Not sure? Send us your VIN and your gearbox code. We match the engine family, the year window and the parts on the engine before anything is reserved, and the check is free.
See all N52 Engines · Search N52B25 in the shop
How much power and torque does the BMW N52B25 have?
From the factory the BMW N52B25 makes 160 kW (218 HP) and 250 Nm of torque. It is a 2.5 liter (2,497 cc) inline 6, DOHC, 24 valve petrol engine with no turbo (naturally aspirated).
Without a turbo, the power builds smoothly with the revs. A clean air intake, healthy ignition and the correct fuel are key to getting the full figure.
A used engine reaches its factory numbers when it is fitted with the matching engine computer and software, and serviced with the right oil and filters. If the engine computer from your car is a different version, a specialist may need to code it.
Every N52B25 on our site lists its year and mileage. You can ask for extra photos, a close-up of the code stamp or a short video before you order.
See all N52 Engines · Search N52B25 in the shop
How do I know a used N52B25 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. You can ask for extra photos, a close-up of the code stamp or a short video before you order.
On a petrol engine like the N52B25, a careful fitter will also look at the spark plugs, the coils and the timing side before the engine goes in.
If the engine fails inside under normal use, the warranty covers you. Eligible engines come with a 12 months warranty from the delivery date. It covers internal mechanical failure under normal use and correct fitting by a qualified mechanic or workshop.
See all N52 Engines · Search N52B25 in the shop
What comes with a used N52B25 engine?
Each N52B25 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 N52 Engines · Search N52B25 in the shop
Is the BMW N52B25 a diesel or petrol engine?
The N52B25 is a petrol engine. It is a 2.5 liter (2,497 cc) inline 6, DOHC, 24 valve unit with no turbo (naturally aspirated), and it was built to the Euro 4 emission standard.
The emission standard matters for registration and for low-emission zones in many cities. When you replace an engine with the same code, the car keeps the same paperwork and the same emission class.
Petrol versions need the correct catalytic converters and oxygen sensors on the car to stay legal and to keep the engine computer happy. Reuse the parts from your car if they are in good condition.
If you are not sure which version you need, send us your VIN. We tell you the right code for free.
See all N52 Engines · Search N52B25 in the shop
What is the difference between the N52B25 and other N52 engines?
The N52B25 makes 160 kW (218 HP) and 250 Nm. The other N52 engines are: N52B30 with 190 kW (258 HP) and 310 Nm (2005 to 2011).
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 N52 Engines · Search N52B25 in the shop
How long does delivery of an N52B25 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 N52 Engines · Search N52B25 in the shop
What should I replace when I fit a used N52B25 engine?
A used engine lasts longest when it starts life in your car with fresh fluids and new seals. Check the spark plugs and the ignition coils, and make sure the fuel lines are clean and tight before you crank the engine. Fit a new oil filter and fresh oil of the grade BMW lists for this engine, and refill the coolant with the correct BMW antifreeze mix. Use new gaskets for the exhaust manifold, the intake and the sump plug, and check every hose clip before the first start.
Look at the engine mounts and the clutch or the torque converter while the engine is out. Old mounts can crack a new engine's brackets, and a worn clutch is much easier to change now.
Before the first start, turn the engine over without fuel until the oil pressure light goes out. Then let it idle, check for leaks, and drive gently for the first few hundred kilometres.
The warranty asks for fitting by a qualified mechanic and the correct oil, coolant and filters. Keep your receipts in case you ever need to make a claim.
See all N52 Engines · Search N52B25 in the shop
Does a used N52B25 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 N52 Engines · Search N52B25 in the shop
Can you check if an N52B25 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 N52B25, 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 325i, BMW E91 325i, BMW E60 525i and BMW E87 125i.
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 N52 Engines · Search N52B25 in the shop
What is the difference between the BMW N52 engines?
BMW N52 naturally aspirated petrol engines for E90, E60 and Z4. We list 2 versions: N52B30 (3.0 liter (2,996 cc), 190 kW (258 HP), 2005 to 2011); N52B25 (2.5 liter (2,497 cc), 160 kW (218 HP), 2005 to 2011).
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 N52 family was used in chassis E90, E92, E60, E85, E87, E70 and E91. 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 N52 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 N52 petrol engine, a fitter usually checks the spark plugs, the coils, the timing side and the oil seals. These parts are easy to check before fitting and easy to change if needed.
If you want more photos or a short video of a unit, ask the desk and we send them before you pay. An inspection certificate can travel with the order on request.
Once fitted, change the oil and filter early and drive gently at first. Report any problem right away so the warranty stays valid.
See all N52 Engines · Inspection certificate
Which years were BMW N52 engines made?
BMW built the N52 engines we list from about 2005 to 2011. The N52B30 ran from 2005 to 2011. The N52B25 ran from 2005 to 2011.
They went into chassis E90, E92, E60, E85, E87, E70 and E91. 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.
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.
- 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.
- 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 N52 has a clear set of strengths and a known list of weak points. Check the code against your VIN, ask for compression figures and photographs, replace the known weak parts while the engine is out, and fit it with fresh fluids and filters. Do that and a used N52 will give years of service.
Ready to order, or need help choosing? Browse every N52 in stock, contact the Hamburg desk or send us your VIN on WhatsApp.
