If you are hunting for a BMW N57 engine for sale, there is a good chance your diesel BMW has just let you down in an expensive way. A timing chain that snapped at the back of the engine. A spun bearing. Coolant in the oil after the EGR cooler gave up. These are not small jobs, and on a 530d or an X5 30d with plenty of life left in the body, a replacement engine is often the smartest money you can spend.
We sell tested, fairly used N57 diesel engines and ship them all over the world. Every engine comes with real photos, a written quote, a warranty, and a fit check against your car before you pay anything.
Need a price today? Send your VIN or engine code through our contact page or call +1 (209) 733-0882. You can also browse our BMW engines in the shop, or go straight to the BMW N57 Engine for Sale product page to see the price.
This page covers the specs, the versions, the cars, the known faults, how we test each BMW N57 engine for sale and how to order one.
What Is the BMW N57?
The BMW N57 is a 3.0 litre straight six turbo diesel. It arrived in 2008 in the E90 330d and replaced the much loved M57. From 2015 BMW began to replace it with the B57, starting with the new 7 Series, but the N57 stayed in many models until around 2019.
Compared with the M57, the N57 is lighter and more efficient. The block is aluminium with cast iron liners instead of the old iron block. The fuel system is a newer common rail setup running at much higher pressure. And BMW moved the timing chains to the back of the engine, next to the gearbox. That last change matters a lot when something goes wrong, and we will come back to it below.
The N57 was built in single turbo, twin turbo and even triple turbo form. That range is one reason a BMW N57 engine for sale has to be matched carefully. A 320 hp tri-turbo M50d engine and a 245 hp 530d engine look alike on a pallet, but they are not the same thing.
BMW N57 Engine Specifications
These figures cover the N57D30 family. Ratings vary by version and year, and we always confirm the full engine code before we quote a BMW N57 engine for sale.
| Engine code | N57D30 (U0, O0, O1, T0, T1, S1 and others) |
| Layout | Inline 6 cylinder turbo diesel, DOHC, 24 valves |
| Displacement | 2,993 cc (3.0 litres) |
| Bore x stroke | 84.0 mm x 90.0 mm |
| Compression ratio | About 16.5:1 |
| Block | Aluminium, closed deck, cast iron liners |
| Fuel system | Bosch common rail, about 1,800 to 2,200 bar depending on version |
| Injectors | Piezo on early engines, solenoid on many later engines |
| Turbo | Single variable geometry, twin sequential, or triple turbo on the S1 |
| Timing drive | Chains at the rear (gearbox side) of the engine |
| Emissions parts | EGR with cooler, diesel particulate filter, SCR on some late engines |
| Power | About 204 hp up to 381 hp (tri-turbo) |
| Torque | About 450 Nm up to 740 Nm (332 to 546 lb-ft) |
| Oil capacity | About 6.5 to 7.2 litres depending on car |
| Years built | 2008 to around 2019 |
N57 Versions Explained
Single turbo engines (U0, O0, O1). The workhorse versions. Found in the 325d, 330d, 525d, 530d, 730d, X3 30d, X5 30d and X6 30d. Power runs from about 204 hp to 258 hp depending on the car and year.
Twin turbo engines (T0, T1). Two turbos working in sequence for about 300 to 313 hp and up to 630 Nm. Used in the 335d, 535d, 640d, 740d, X3 35d, X4 35d, X5 40d and X6 40d.
Tri-turbo engine (S1). The famous N57S with three turbos and about 381 hp. Used in the M550d, X5 M50d and X6 M50d. It has its own pistons, turbos, fuel system and cooling parts.
Even inside one version there were updates, known as TU (technical update) engines, with changes to injectors, pumps and software. We match the exact BMW N57 engine for sale to the code on your block, not just to the model name.
BMW Models With the N57
- 3 Series: E90, E91, E92 and E93 325d and 330d; F30, F31 and F34 330d and 335d
- 4 Series: F32, F33 and F36 430d and 435d
- 5 Series: F10 and F11 525d, 530d, 535d and M550d; F07 530d and 535d Gran Turismo
- 6 Series: F06, F12 and F13 640d
- 7 Series: F01 and F02 730d and 740d
- X3 F25 xDrive30d and xDrive35d; X4 F26 xDrive30d and xDrive35d
- X5 E70 xDrive30d and xDrive40d; X5 F15 xDrive30d, xDrive40d and M50d
- X6 E71 xDrive30d, xDrive40d and M50d; X6 F16 xDrive30d, xDrive40d and M50d
Rear wheel drive and xDrive cars use different sumps and front parts, and some cars use a different turbo position. Give us the model, year and drive type, and we will find the right BMW N57 engine for sale for it.
7 Essential Checks Before You Buy a BMW N57 Engine for Sale
1. Engine code and version
Single turbo, twin turbo or tri-turbo. Get a photo of the code. Guessing here costs real money.
2. Timing chain condition
Ask whether the chain has been checked or replaced. A rattle at start-up from the back of the engine is the sound you do not want to hear.
3. Compression test
Even numbers across all six cylinders mean healthy rings and valves.
4. Oil and coolant
No milky oil, no oil in the coolant. Coolant loss on an N57 often points to the EGR cooler.
5. Turbo play and smoke
Check for shaft play, oil in the intake and any history of heavy smoke.
6. Included parts
Turbo, injectors, high pressure pump, EGR parts, starter, alternator, harness? Get the list in writing.
7. Written warranty
Read it before you pay. Our used engine warranty page explains how ours works.
Common BMW N57 Problems
The N57 is a strong engine, but it has a few weak spots. We look for every one of them before we offer a BMW N57 engine for sale.
Timing chain wear at the rear
This is the big one. Because the chains sit at the gearbox end, the engine or gearbox has to come out to change them. Early engines in particular had chain and tensioner wear, and BMW issued updates. A chain that jumps or breaks usually means bent valves or worse. If an engine has a chain rattle, we tell you.
EGR cooler leaks
The EGR cooler can crack inside and leak coolant into the intake. You see coolant loss, white smoke and sometimes a sweet smell. BMW ran a recall on this in many markets. Check whether it was done on your car before fitting a new engine, because a bad cooler can damage a fresh one too.
Swirl flaps and intake carbon
Diesel engines with EGR collect soot in the intake. On the N57 the swirl flaps and intake ports can get heavily coated over the years. Cleaning the intake during the swap is a smart move.
Crank and rod bearings
Some engines, especially hard-worked twin turbo units, suffer bearing wear. Low oil, long service intervals and short trips make it worse. We check the oil and listen for bottom end noise on every BMW N57 engine for sale.
Diesel particulate filter
A car that only does short trips never gets hot enough for the diesel particulate filter to clean itself. The filter clogs, back pressure goes up, and the turbo and EGR system suffer. Repeated failed regenerations also thin the oil with diesel.
Injectors
Piezo injectors on early engines are expensive and do not like dirty fuel or water. Leaking or sticking injectors cause rough running and smoke.
Oil leaks
Oil filter housing gaskets, valve cover gaskets and the vacuum pump seal are the usual spots on high mileage engines.
None of this makes the N57 a bad engine. Looked after properly, they cover big distances. It just shows why it pays to buy from someone who actually checks.
How We Test Each BMW N57 Engine for Sale
- We record the full engine code, mileage and donor car where we have it.
- We run a compression test on all six cylinders.
- We check the oil for coolant, metal and fuel dilution.
- We listen for timing chain noise and check what we can of the chain and guides.
- We check the turbo or turbos for play and oil.
- We inspect the EGR parts and the block for leaks and cracks.
- We photograph the engine from every side and send the photos to you.
- We drain, cap and pack the engine for transport.
You see the actual engine before you pay. If you want another photo of the BMW N57 engine for sale you are looking at, just ask.
N57 vs M57 vs B57
The M57 is the older iron block diesel with the chain at the front. It is tough, simple and loved in many countries. If your car has one, see our BMW M57 engine for sale page or the 3.0 M57 product page.
The N57 is lighter, cleaner and more powerful, with the chain at the back. Our article on M57 vs N57 differences goes deeper into how they compare.
The B57 replaced the N57 from 2015. It is a different engine with different mounts, wiring and electronics, and it does not drop into an N57 car without a lot of work.
The easy rule is to replace like with like. If your car was built with an N57, a BMW N57 engine for sale of the same version is the cleanest swap.
Repair or Replace?
Plenty of N57 faults are repairs. A leaking EGR cooler, a tired injector or a clogged DPF can all be fixed without a new engine. But some problems make a replacement the better value:
- A snapped or jumped timing chain with valve damage.
- A spun bearing or a knock from the bottom end.
- Coolant in the oil after overheating, with a warped head or cracked block.
- Low compression across several cylinders.
- Damage after a turbo failure sent debris into the engine.
Send us the symptoms and any workshop report. We will tell you straight whether a BMW N57 engine for sale is worth it for your car.
Used, Rebuilt or Remanufactured?
Fairly used engines come from running cars and are tested before sale. They are the cheapest and fastest way back on the road.
Rebuilt engines get new bearings, rings, gaskets and usually a new timing chain set. They cost more but start fresh.
Remanufactured engines are built to a fixed standard and cost the most. Our guide to remanufactured vs rebuilt engines explains the options.
For most 530d, 330d and X5 owners, a clean used BMW N57 engine for sale is the best balance of price and risk.
Long Block or Complete Engine?
A long block is the bare engine core: block, crank, pistons, head and cams. It suits you if your turbo, injectors, pump and EGR parts are healthy.
A complete engine includes the turbo, injectors, high pressure pump, intake and most bolt-on parts. It is quicker to fit and is what most workshops prefer. Each quote for a BMW N57 engine for sale says clearly which one it is.
What a BMW N57 Engine for Sale Costs
We price each engine on its own merits. The main things that change the price:
- Version: single, twin or tri-turbo
- Mileage and condition
- Long block or complete engine
- Included parts like turbos and injectors
- Shipping method and destination
Send your engine code and we will price the matching BMW N57 engine for sale, shipping included. Our article on replacement engine cost helps you plan the full job.
Worldwide Shipping
We ship to Europe, Africa, the Middle East, Asia, Australia and the Pacific, the Caribbean, and North, Central and South America. Sea freight is the cheaper choice for most people. Air freight is quicker when the car is needed fast.
Every BMW N57 engine for sale is drained, capped, strapped down and packed on a pallet or in a crate, then sent with tracking and export paperwork. Our shipping policy has the details.
Installation Advice
- Find out why the old engine died and fix the cause first.
- Check the EGR cooler recall status and replace the cooler if in doubt.
- Clean or replace the intercooler and pipes if the old turbo failed.
- Check the DPF. A blocked filter will choke a fresh engine.
- Fit new fuel filters and use clean diesel.
- Use the oil BMW specifies for diesel engines with a DPF.
- Make sure the DME software suits the engine version.
Do this and your BMW N57 engine for sale from us should give years of good work.
Looking After Your N57
Change the oil sooner than the long interval in the computer, especially if the car does short trips. Take the car on a proper run on the highway now and then so the DPF can regenerate. Let it warm up before using full power, and let it idle for a short moment after hard driving so the turbos can cool. Watch the coolant level. These simple habits keep a BMW N57 engine for sale going long after it is fitted.
When the Engine Arrives
- Take photos of the crate before opening it.
- Match the engine number to the quote.
- Check every listed part is there.
- Turn the engine by hand.
- Tell us within the time on your quote if anything is wrong.
A Word on Tuned Engines
The N57 responds very well to a remap, and plenty of cars out there have been tuned. That is not a problem on its own, but big power without supporting changes puts extra load on the bearings, the turbo and the clutch or gearbox. When we source a BMW N57 engine for sale, we look for signs of heavy tuning such as removed DPF parts, oversized pipes or aftermarket software notes, and we tell you if we find them.
If you plan to tune your replacement engine, start with a healthy stock unit, keep the oil fresh and go easy until it has a few thousand kilometres on it. A sensible tune on a good BMW N57 engine for sale is fine. A wild tune on a tired one is how engines end up on our pallets in the first place.
Running an N57 in Hot or Dusty Countries
Many of our buyers drive in places where it is hot most of the year, the roads are dusty and diesel quality changes from one station to the next. The N57 copes with this, but it needs a little more care.
- Change the air filter more often than the book says.
- Fit a good water separating fuel filter and drain it regularly.
- Keep the radiator and intercooler fins clean so the engine does not run hot.
- Shorten the oil change interval.
Follow these points and a BMW N57 engine for sale from us will handle heat, dust and long distances without fuss.
Notes for Workshops and Importers
If you run a garage or import engines, we can quote several units at once and combine them in one shipment to keep freight costs down. Tell us the engine codes you see most often and we will look out for them. Many of our trade buyers order a BMW N57 engine for sale alongside M57 and N55 units for the same container. We send photos and test notes for each engine so you can pass them on to your own customers with confidence, and every BMW N57 engine for sale in a trade order is labelled with its code and quote number.
Who Buys N57 Engines From Us
Owners of 530d and X5 30d cars who want to keep a car they like. Independent BMW specialists. Fleet and taxi operators running diesel 5 Series. Importers who resell engines at home. Each of them gets the same thing from us: the right engine for the code, honest notes and a fair price on each BMW N57 engine for sale.
We also supply the BMW N55 engine for sale for petrol 35i models, the Mercedes OM642 V6 diesel, the Mercedes OM612 and the Land Rover 3.0 TDV6. Browse our used European car engines or visit the shop.
How to Order Your BMW N57 Engine for Sale
- Send your details. VIN, model, year and engine code through our contact page, or call +1 (209) 733-0882.
- Get photos and a written quote with shipping included.
- Pay by bank transfer. It is the only payment method we accept. See our billing terms.
- We ship with tracking and send the documents.
- You fit the engine and we stay on hand for questions.
Want more tips? Read how to buy a used engine online and our page on low mileage used engines.
Why Buy From NJ Global Auto Parts
We check the fit before you pay, send pictures of the real engine and describe its condition honestly. Every BMW N57 engine for sale ships with a written quote, tracking and a written warranty. Read our refund and returns policy and learn more about us.
Quick Summary
The N57 is a strong, economical diesel with a few known weak points, mainly the rear timing chain, the EGR cooler and the DPF. Match the version carefully, deal with the EGR and DPF during the swap, and keep the oil fresh. Start with a tested BMW N57 engine for sale and you can expect a long, trouble free run.
Frequently Asked Questions
Where can I find a BMW N57 engine for sale with a warranty?
Right here. Every BMW N57 engine for sale we ship comes with a written warranty, and the terms are on your quote before you pay.
How do I know which BMW N57 engine for sale fits my car?
Send us your VIN and engine code. We check them against the BMW N57 engine for sale we have in stock and confirm the match in writing before we quote. If no BMW N57 engine for sale in stock is a true match, we tell you and keep looking.
Is the N57 better than the M57?
It is lighter and more powerful, with better economy. The M57 is simpler and has its chain at the front. Both are good engines when looked after.
Can a 330d engine go in a 335d?
Not as a simple swap. Single and twin turbo engines use different turbos, pistons, pipes and software.
Does your BMW N57 engine for sale include the turbo?
Complete engines do. Long blocks do not. Your quote spells it out.
How long does an N57 last?
Many pass 250,000 km with good care. Short trips, old oil and a neglected EGR system shorten that a lot.
Do you ship worldwide?
Yes, by sea or air, with tracking.
How do I pay?
Bank transfer only. Details come with your quote.
Get Your Diesel BMW Moving Again
A good diesel BMW is worth saving. If you need a tested BMW N57 engine for sale matched to your engine code, with real photos and honest notes, contact us today. We will check the fit, send pictures and give you a clear price, wherever you are in the world.