BMW 3 Series 335d Engine ReplacementCompare Prices & Get Quotes
Get instant quotes today from trusted UK BMW 3 Series 335d engine specialists. Compare prices on reconditioned, rebuilt and used M57D30 and N57D30 engines for your E90, E91, E92 or F30 335d with transparent pricing and verified suppliers.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
From £3,500 to £7,500
Used from £1,200 · Reconditioned from £2,500 · Common codes: M57D30, N57D30A, N57D30B, N57D30T1
From £1,200
Tested, bare/short engine
From £2,500
Rod bearings addressed, tested
From quote
Upgraded bearings, full teardown, revised valvetrain
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3 Simple Steps3 Simple Stepsto Finding the Best BMW 3 Series 335d Replacement Engineto Finding the Best BMW 3 Series 335d Replacement Engine
Most replacements completed within 3-5 days.
Variant HistoryBMW 3 Series 335d - Engine History & Specs at a Glance
The BMW 335d has been the flagship diesel in the 3 Series range since its introduction in 2006, offering V8-like torque with diesel efficiency. Initially powered by the cast-iron M57D30 engine in the E90/E91/E92 generation, the 335d later received the lighter aluminium-block N57D30 in the F30/F31 chassis. Both engines deliver over 300 horsepower and immense torque, making the 335d one of the most accomplished performance diesels ever built.
Variant HistoryBMW 3 Series 335d - Engine History & Specs at a Glance
The BMW 335d has been the flagship diesel in the 3 Series range since its introduction in 2006, offering V8-like torque with diesel efficiency. Initially powered by the cast-iron M57D30 engine in the E90/E91/E92 generation, the 335d later received the lighter aluminium-block N57D30 in the F30/F31 chassis. Both engines deliver over 300 horsepower and immense torque, making the 335d one of the most accomplished performance diesels ever built.
BMW 3 Series 335d
Fuel TypeDiesel
Engine Size3.0L (2,993 cc)
Power Output Range245 hp (N57D30A) - 313 hp (N57D30B/N57D30T1)Engine History Timeline
M57D30TU2 3.0-litre straight-six twin-turbo diesel, 286 hp - E90/E91/E92 335d launched
335d xDrive introduced on E90/E91 generation
N57D30A 3.0-litre straight-six twin-turbo diesel, 245 hp - F30 335d launched (lower-power variant)
N57D30B 3.0-litre straight-six twin-turbo diesel, 313 hp - F30 335d xDrive launched
N57D30T1 3.0-litre straight-six, 313 hp - updated variant for LCI models
335d production ends; replaced by M340d with B57 engine
Key Specs Snapshot
Fuel TypeDieselEngine Size3.0L (2,993 cc)Power Output Range245 hp (N57D30A) - 313 hp (N57D30B/N57D30T1)Torque Range580-630 NmYears Produced2006-2019Every engine fitted to the BMW 3 Series 335d is covered below, with UK rebuilt pricing and known failure points.
BMW 3 Series 335d Engine Codes - Specifications & Replacement CostBMW 3 Series 335d Engine Codes - Specifications & Replacement Cost
3.0L Straight-Six Twin-Turbo Diesel (2006-2012)
Power Output286 hp (210 kW)Torque580 NmDisplacement2,993 ccYears Fitted2006-2012 (E90/E91/E92 335d)
Compatible Trim Levels
- 335d SE
- 335d M Sport
- 335d xDrive
Find your exact engine code, specs and UK replacement cost guide.
Used
Tested, ready-to-fit engine
£1,200-£2,500
Reconditioned
Addressed known issues, tested
£2,500-£4,500
Rebuilt
Full teardown, upgraded internals
£4,500-£7,000
Common Failure
The M57D30 is known for swirl flap failure - plastic flaps in the intake manifold can break and be sucked into the engine, causing catastrophic damage. EGR cooler leaks and DPF clogging are also common on higher-mileage examples.
The BMW 335d is powered by two generations of BMW's 3.0-litre straight-six diesel - the cast-iron M57 in the E90 and the aluminium N57 in the F30. Both engines deliver immense torque and can exceed 200,000 miles with proper maintenance, but they have several well-documented, expensive failure points. Rebuilt engines through EnginesMarket include upgraded components addressing the original failure points, plus a minimum 12-month unlimited-mileage warranty.
Why the N57 335d Engine Is at Risk
Affected Vehicles
BMW 3 Series 335d (N57D30A / N57D30B / N57D30T1, 2012-2019)
Typical Failure Mileage
80,000-150,000 miles
Root Cause
The N57 engine's timing chain is located at the rear of the engine, requiring the engine to be removed for replacement. The chain can stretch over time, and the tensioners can wear out. Because the N57 is an interference engine, if the chain fails, valve-to-piston contact causes catastrophic engine damage. A metallic rattling noise on cold start is the classic warning sign.
Why It Happens
The N57 engine's timing chain is located at the rear of the engine, requiring the engine to be removed for replacement. The chain can stretch over time, and the tensioners can wear out. Because the N57 is an interference engine, if the chain fails, valve-to-piston contact causes catastrophic engine damage. A metallic rattling noise on cold start is the classic warning sign.
Dealer (parts + labour)
£2,500-£4,000
Specialist (parts + labour)
£1,800-£2,800
What it involves
New chain, guides, tensioner - engine-out job
Suitability
Best if caught early - before chain has slipped
1 - 2 daysDealer (parts + labour)
£7,000-£11,000
Specialist (parts + labour)
£5,000-£8,500
What it involves
Complete rebuilt engine with upgraded timing components, 12-month warranty
Suitability
If timing chain has failed causing internal damage
1 - 2 daysAll prices are indicative UK market ranges based on current UK specialist supplier data.| Repair Tier | Dealer (Parts + Labour) | Specialist (Parts + Labour) | What It Involves | Suitability | Estimated Time |
|---|---|---|---|---|---|
 Timing chain replacement Minor | £2,500-£4,000 | £1,800-£2,800 | New chain, guides, tensioner - engine-out job | Best if caught early - before chain has slipped | 1 - 2 days |
 Full Replacement - rebuilt/reconditioned engine Best Value | £7,000-£11,000 | £5,000-£8,500 | Complete rebuilt engine with upgraded timing components, 12-month warranty | If timing chain has failed causing internal damage | 1 - 2 days |
Vehicle Value Check
Vehicle Value Check
A typical E90 335d is worth approximately £4,000-£10,000, while an F30 335d ranges from £8,000-£18,000. Timing chain replacement (£1,800-£2,800 at specialist rates) is financially sensible on both generations. Full engine replacement is only justifiable if the car is in exceptional condition. If replacement cost exceeds 60% of vehicle value, evaluate scrap or part-exchange first.
Our Recommendation
Our Recommendation
If you hear a rattling noise from the engine on cold start, act immediately. The N57 timing chain issue is well-documented and can write off an otherwise good car. A preventative chain replacement is far cheaper than a full engine rebuild.
Don't Let Engine Failure Write Off Your BMW 3 Series 335d
Whether it's timing chain stretch on your N57, swirl flap failure on your M57, or EGR cooler leaks on either generation, the 335d remains one of the most accomplished performance diesels ever built - when properly maintained. Every rebuilt M57 and N57 engine supplied through EnginesMarket comes with upgraded components addressing the original failure points and a minimum 12-month unlimited-mileage warranty, with nationwide delivery and supply & fit options available.
Compare BMW 3 Series 335d N57 timing chain repair costs
12-Month Minimum
UK Specialists Vetted
Best Price GuidanceImportant Information
Important Information
BMW 3 Series 335d Engine ReplacementFrequently Asked Questions
Question 1How much does a BMW 335d engine replacement cost in the UK-
The cost to replace an engine in a BMW 335d varies by generation. For M57D30 engines in the E90, rebuilt units range from £4,500-£7,000. For N57D30 engines in the F30, rebuilt units range from £5,000-£8,500. Used engines start from around £1,200, while reconditioned units fall in the £2,500-£5,500 bracket. Specialist fitting adds approximately £800-£1,200 in labour for the straight-six diesel.
- Used M57/N57: £1,200-£3,500
- Reconditioned: £2,500-£5,500
- Rebuilt: £4,500-£8,500
- Labour (supply & fit): £800-£1,200 at specialist rates
Question 2What are the signs of timing chain failure in a BMW 335d (N57 engine)-
The N57 engine in the F30 335d is known for timing chain stretch. The most common early warning sign is a metallic rattling noise from the engine, particularly on cold start. Other symptoms include rough idling, misfires, and in severe cases, complete engine failure.
- Rattling noise from the engine (cold start)
- Rough idling or misfires
- Loss of power
- Catastrophic failure if ignored - the chain can snap
Question 3Is it worth replacing the engine in a BMW 335d-
The answer depends on your 335d's generation and condition. For E90 335d models worth £4,000-£10,000, a full engine replacement (£4,500-£7,000) is borderline and only makes sense if the car is in exceptional condition. For F30 335d models worth £8,000-£18,000, replacement is more viable but still requires careful consideration.
- E90 value: £4,000-£10,000
- F30 value: £8,000-£18,000
- Full rebuilt engine: £4,500-£8,500
- Timing chain replacement: £1,800-£2,800 (best value repair on N57)
- Swirl flap delete: £350-£650 (best value preventative maintenance on M57)
- Evaluate scrap value if replacement cost exceeds 60% of vehicle value
Question 4What's the difference between the M57 and N57 engines in the 335d-
The M57D30 (2006-2012) features a cast-iron block, single-VANOS, and produces 286 hp. The N57D30 (2012-2019) features an aluminium block for weight reduction, Double-VANOS, and produces up to 313 hp in its highest state of tune. Both are 3.0-litre straight-six twin-turbo diesels.
- M57D30: Cast-iron block, 286 hp, swirl flap failure risk
- N57D30A: Aluminium block, 245 hp, timing chain stretch risk
- N57D30B/T1: Aluminium block, 313 hp, timing chain stretch risk
Question 5How long does a BMW 335d engine replacement take-
A full engine replacement on a BMW 335d typically takes 2-3 days for a specialist workshop, assuming the replacement engine is on hand. The straight-six diesel is well-understood by BMW specialists, but the engine's size and weight add complexity.
- Supply-only delivery: 1-3 working days (nationwide)
- Supply & fit: 2-3 days at the workshop
- Always confirm lead time with your chosen specialist
Question 6Can I still get a replacement engine for a BMW 335d-
Yes. While the M57D30 and N57D30 are no longer in production, used, reconditioned, and rebuilt units remain readily available through UK engine specialists. EnginesMarket connects you with vetted suppliers who stock engines for all 335d generations - from the E90 through to the F30.
- Used M57/N57 engines: widely available from £1,200
- Reconditioned units: available from £2,500
- Rebuilt units: available from £4,500 with 12-month warranty
- All options available with supply & fit
Why Choose UsCompare BMW 3 Series 335dEngine PricesToday
400+ M57 and N57 engines supplied through our network
12-Month Warranty on every rebuilt BMW 335d engine
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