325d M57 / N57
Sold with 2 different engines in this chassis, M57 2006–2010, N57 2010–2012. Both are on this page; they differ in exactly the ways that cost money.
Overview
The 325d is the M57 diesel version of the BMW 3 Series wagon (E91), sold 2006–2010 with 197 PS and manual or automatic. Manageable at level 2. The M57 has no failure mode that ends the engine; what fails is bolted to the outside: swirl flaps, turbo actuator, DPF. 18 failure modes are recorded against its engine, gearbox, chassis and shared components. Prices on this page are illustrative placeholders rather than a sourced market sample. See the methodology for how the bands are derived.
BMW 3 Series wagon (E91) · photo BMW E91 LCI 330xi Touring Arctic Metallic (2) by Damian B Oh · CC BY-SA 4.0 · Wikimedia Commons
Ranked by probability × repair cost. 18 recorded in total.
Risk level −11 · Likely spend vs price −26 · all issues →
Ranked by probability × repair cost. 19 recorded in total.
Risk level −22 · Likely spend vs price −26 · all issues →
Which engine
| Engine | Years | Facelift | Power | Torque | Risk | Issues | Good buy | In one line |
|---|---|---|---|---|---|---|---|---|
| M57 | 2006–2010 | both | 197 PS | 400 Nm | R2 | 18 | €5,500 | Six-cylinder diesel durability at four-cylinder money. One of the best-value cars in the range. |
| N57 | 2010–2012 | LCI | 204 PS | 430 Nm | R3 | 19 | €7,650 | A late, quiet, efficient six-cylinder diesel, the most modern engine in the range and a sensible daily car. |
325d M57D30TU2 / M57D30TOP 2006–2010
The strongest engine in the range. Bottom ends routinely pass 400,000 km; everything that fails on it's bolted to the outside and priced accordingly.
Risk 2, Manageable. The M57 has no failure mode that ends the engine; what fails is bolted to the outside: swirl flaps, turbo actuator, DPF.
Pre-facelift or facelift, this engine spans both
The same badge either side of the changeover. Bands are split at the facelift year from the generation record.
| Phase | Years | Low | Average | High | Good buy | What differs |
|---|---|---|---|---|---|---|
| pre Pre-facelift | 2006–2007 | €4,650 | €6,350 | €8,700 | €5,500 | The specification the car launched with. |
| LCI Facelift (LCI) | 2008–2010 | €5,100 | €6,950 | €9,450 | €6,050 | Revised lights and bumpers; N53 replaced N52 in most European markets; N57 replaced M57 in the 330d |
Known issues, ranked by expected cost
Faults recorded against this engine, its components and its chassis, ranked by likelihood × repair cost. Costs are indicative ranges with a stated labour basis.
Ranked by probability × repair cost, not by how loudly a failure is discussed. Inherited from the engine, gearbox, chassis and shared components, each written once. All 18 issues in full →
Pre-purchase inspection
The same issue records, reordered into the sequence you can actually check them in: cold start, static, drive, paperwork.
1Static checksEngine off, ideally on a lift.
2On the driveInclude low-speed manoeuvring, not just an open road.
3PaperworkOn these cars the folder is most of the value.
4OBD scanMandatory. A seller who refuses a scan has answered the question.
Mileage and servicing
What the odometer does and doesn't tell you here, plus the service items whose neglect causes the expensive failures above.
The M57 bottom end routinely passes 400,000 km. So treat 250,000 km with history as normal rather than alarming. What ages is the turbo actuator, the swirl flap spindles and the DPF; a car used for short journeys will have all three problems regardless of what the odometer says.
| Service item | Interval | Cost |
|---|---|---|
| Swirl flaps The only failure here capable of destroying the engine, and it's avoidable | preventive | €400–900 |
| Engine oil Turbo bearings and fuel dilution from regenerations | 10,000–15,000 km | €100–150 |
| Automatic fluid + pan The torque of a diesel makes fluid neglect worse, not better | 80,000–100,000 km | €400–600 |
What to pay
What this engine sells for, against the median of every engine in the chassis. All figures are illustrative placeholders. See the basis chips.
Enter an asking price to get a verdict against this variant's band: cheap, fair, good buy or overpriced.
United States vs Europe
1 EUR = 1.08 USD ·US figures are the EU band converted at a stated rate. No US market differential is modelled: we hold no sourced US asking prices, and inventing one would be worse than saying so. What the comparison does show for real is availability. Most of this range was never sold in the US.
- ModelBMW 3 Series 325d
- ChassisE91
- EngineM57
- Years2006–2010
- MarketCentral EU
- Windowrolling 12 months to 2026-07
Good buy isn't the same as cheapest. The good-buy figure assumes the known failure items are either done with receipts or verifiably not yet due. Full breakdown by facelift phase →
Buyer notes
Our judgement, kept separate from the records it's built on.
Everything above this line comes from the issue and specification records. This paragraph is our judgement on top of them. See how we reach it.
Full specification
Manufacturer figures for this engine and body, as recorded in the variant and engine data.
| Engine code | M57D30TU2 / M57D30TOP |
| Configuration | I6, turbodiesel (twin-turbo in 335d) · 2993 cc |
| Fuel / injection | diesel · common rail |
| Model years | 2006–2010 |
| Facelift phase | Sold either side of the 2008 facelift, 2006–2007 pre, 2008–2010 LCI |
| Power / torque | 197 PS · 400 Nm |
| Transmissions | 6-speed manual · 6-speed automatic (ZF) |
| Gearbox families | Getrag six-speed manual · ZF 6HP19 / 6HP21 six-speed automatic |
| Drivetrain | RWD |
| Economy (real-world) | 6–7.5 l/100 km mixed |
| Markets | EU |
325d N57D30 2010–2012
The M57's successor: quieter, cleaner, a little more powerful, and slightly more complicated. Shares the rear chain layout of the N47 with a far better record.
Risk 3, Demands diligence. Shares the rear-chain architecture of the N47 with a much lower failure rate, plus the usual diesel emissions hardware.
Known issues, ranked by expected cost
Faults recorded against this engine, its components and its chassis, ranked by likelihood × repair cost. Costs are indicative ranges with a stated labour basis.
Ranked by probability × repair cost, not by how loudly a failure is discussed. Inherited from the engine, gearbox, chassis and shared components, each written once. All 19 issues in full →
Pre-purchase inspection
The same issue records, reordered into the sequence you can actually check them in: cold start, static, drive, paperwork.
1Cold startYou get one. If the engine is warm when you arrive, come back another day.
2Static checksEngine off, ideally on a lift.
3On the driveInclude low-speed manoeuvring, not just an open road.
4PaperworkOn these cars the folder is most of the value.
5OBD scanMandatory. A seller who refuses a scan has answered the question.
Mileage and servicing
What the odometer does and doesn't tell you here, plus the service items whose neglect causes the expensive failures above.
Late cars, so mileage tends to be moderate. Then listen at the bulkhead on cold start anyway: the six's chain is far more hard-wearing than the four's, but it's the same layout and worth ten seconds of attention. Check DPF and EGR history.
| Service item | Interval | Cost |
|---|---|---|
| EGR cooler recall Issued over a fire risk and free to have carried out | check by VIN | free |
| Engine oil Chain wear and turbo longevity | 10,000–15,000 km, not long-life | €100–150 |
| DPF usage pattern This engine needs sustained hot running; a city-only life ruins it | ongoing | €250–1,800 |
What to pay
What this engine sells for, against the median of every engine in the chassis. All figures are illustrative placeholders. See the basis chips.
Enter an asking price to get a verdict against this variant's band: cheap, fair, good buy or overpriced.
United States vs Europe
1 EUR = 1.08 USD ·US figures are the EU band converted at a stated rate. No US market differential is modelled: we hold no sourced US asking prices, and inventing one would be worse than saying so. What the comparison does show for real is availability. Most of this range was never sold in the US.
- ModelBMW 3 Series 325d
- ChassisE91
- EngineN57
- Years2010–2012
- MarketCentral EU
- Windowrolling 12 months to 2026-07
Good buy isn't the same as cheapest. The good-buy figure assumes the known failure items are either done with receipts or verifiably not yet due. Full breakdown by facelift phase →
Buyer notes
Our judgement, kept separate from the records it's built on.
Everything above this line comes from the issue and specification records. This paragraph is our judgement on top of them. See how we reach it.
Full specification
Manufacturer figures for this engine and body, as recorded in the variant and engine data.
| Engine code | N57D30 |
| Configuration | I6, turbodiesel · 2993 cc |
| Fuel / injection | diesel · common rail |
| Model years | 2010–2012 |
| Facelift phase | Facelift (LCI) only, from 2008 |
| Power / torque | 204 PS · 430 Nm |
| Transmissions | 6-speed manual · 6-speed automatic (ZF) |
| Gearbox families | Getrag six-speed manual · ZF 6HP19 / 6HP21 six-speed automatic |
| Drivetrain | RWD |
| Economy (real-world) | 5.5–7 l/100 km mixed |
| Markets | EU |