X6 Diesel Engines
from £1,500 to £5,500
Rebuilt units from £1,850 · Common codes: N57D30, B57D30, N57D30B, B57D30C
BMW ENGINE MARKETPLACE
BMW X6 N57/B57/N63 Engine Solutions - UK Specialists
Get quotes from trusted UK BMW X6 engine specialists. Compare reconditioned & used engines for xDrive30d to X6 M - N57/B57/N63 covered. Get a quote before it's too late.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
X6 Petrol Engines
from £2,200 to £7,500
Rebuilt units from £2,500 · Common codes: N63B44, N63B44B, N63B44C, B58B30
X6 M Performance Engines
from £4,500 to £12,000
Rebuilt units from £5,200 · Common codes: S63B44, S63B44B, S63B44C
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Compare reconditioned, rebuilt & used engine prices
Supply & fit available - parts and labour from vetted specialistsInstant engine replacement quote - 100% free, no obligationEngine replacement near me - UK-wide specialist networkCompare reconditioned, rebuilt & used engine pricesSupply & fit available - parts and labour from vetted specialistsHow It Works
3 Simple Steps3 Simple Stepsto Finding the Best BMW X6 Replacement Engineto Finding the Best BMW X6 Replacement Engine
12-Month Warranty
Supply & Fit Available
Nationwide Delivery
Trusted UK Suppliers
Most replacements completed within 3-5 days.
Live UK Engine Market Data
What Are UK Drivers Paying for BMW X6 Engine Replacement
The table below shows typical UK rebuilt engine costs across BMW X6 variants, covering documented failure causes, chassis generations, engine codes, and fuel types based on current market data.
Average Market Prices
↻ Last updated: 4 Aug 26, 9:26
Customer Reviews
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Variants We Cover
BMW X6 Engine ReplacementAll Variants Covered
X6 xDrive35d
N57D30A 3.0L Diesel
Rebuilt Engines: £1,600-£3,800
X6 xDrive35i
N54B30/N55B30 3.0L Petrol
Rebuilt Engines: £1,800-£4,200
X6 xDrive45e
B58B30 3.0L Plug
Rebuilt Engines: £5,000-£9,500
X6 ActiveHybrid
N63B44A 4.4L Petrol
Rebuilt Engines: £4,000-£8,000
Not sure which variant your BMW X6 is- Enter your registration number above - we'll identify the exact sub-model, engine code and compatible replacement options instantly.
X6
Engine Codes
BMW X6 Engine CodesFull Technical Specifications & Replacement Guide
Every engine code fitted to the BMW X6 across all generations (E71, F16, G06), with technical specs, compatible variants and trims, known failure points, and average rebuilt prices from UK specialists. Select any engine code to compare quotes.
Diesel Engines
Extracted from detailed diesel engine families across BMW X6 variants.
N57D30A - 3.0L Diesel
Main replacement triggers are timing chain wear, EGR / cooling faults and turbo-control issues.
Compatible variants
xDrive30dxDrive30d M SportxDrive35dxDrive35d M Sport
Avg. rebuilt price
£1,500 - £3,200
Supply only
Technical specifications
- Fuel type
- Diesel
- Engine size
- 3.0L
- Power output
- 235-286 hp
- Years fitted
- 2008-2019
Common failures
- ●Main replacement triggers are timing chain wear, EGR / cooling faults and turbo-control issues.
- ●Confirm exact engine code and fitment before ordering.
- ●Ask for warranty and supply & fit terms.
Not sure which engine code?
Can’t find your engine code- Enter your registration number above - we’ll instantly identify the exact unit, its technical specifications, and live replacement prices from UK BMW X6 engine specialists. Every rebuilt engine comes with a minimum 12-month unlimited mileage warranty.
X6
Common Problems
BMW X6 Engine Problems - What It Costs to Fix & When Replacement Makes Sense
The BMW X6 spans three generations (E71, F16, G06) with engine families that have very different reliability profiles. The N57 diesel range (2008-2019) dominates replacement demand, with timing chain and EGR cooler failures accounting for the majority of enquiries, while N63 V8 petrol units face chronic oil consumption issues. Every rebuilt engine supplied...
BMW X6 N57 Timing Chain Failure - Why Pre-2015 Diesel Engines Fail Prematurely
BMW X6 N57 Timing Chain Failure
Most affected vehicles
BMW X6 xDrive30dxDrive35d
BMW X6 xDrive30d, xDrive35d, xDrive40d (2008-2015, N57D30A & N57D30B)
Failure mileage range
80,000 - 120,000 miles
Typical failure window
Root cause
The timing chain is mounted at the rear of the engine block, running through oil galleries that become blocked by sludge from extended service intervals or poor oil quality. The chain stretches, guides crack, and eventually the chain snaps - causing catastrophic valve and piston contact.
Repair options & estimated costs (UK ranges)
| Repair tier | Dealer price | Specialist price | What it involves | Longevity / suitability |
|---|---|---|---|---|
| Minor - Preventative Chain Replacement - Replace before failure | £2,200 - £3,200 | £1,200 - £1,800 | Full timing chain kit, tensioners, guides, sprockets, oil pump chain, sump gasket | 60,000-80,000 miles - only viable if engine is running without fault codes or rattles |
| Intermediate - Post-Failure Chain & Head Rebuild - Chain snapped, no piston damage | £4,500 - £6,500 | £2,800 - £4,200 | Chain replacement plus cylinder head rebuild, valve replacement, head gasket, full timing kit | 60,000+ miles - cost effective if bore scoring is absent |
| Full Replacement - Rebuilt / Reconditioned Engine - Catastrophic valve/piston damage | £7,500 - £11,000 | £4,500 - £7,500 | Complete rebuilt engine (upgraded chain components), new gaskets, oil pump, water pump, fitted | 60,000+ miles on rebuild - includes 12-month unlimited mileage warranty |
Our recommendation
If your N57 X6 is under 100,000 miles and you hear chain rattle on cold start, preventative replacement at a specialist is the smart move - it costs half what a dealer charges and avoids engine destruction. Once the chain has snapped, replacement is almost always better value than rebuilding a damaged cylinder head. On a 2008-2015 X6 worth £4,000-£10,000, a specialist rebuilt engine at £4,500-£7,500 fitted gives you a warranty and upgraded components that the factory never offered.
Compare rebuilt N57D30 engine prices for your BMW X6Replacement Engine Options
BMW X6 Engine TypesOptions, Costs & What to Expect
Every engine type is available through our UK network with typical price ranges based on your X6 variant, engine code and budget.
BMW X6 Reconditioned Engines (Recon)£2,200 - £5,500((supply only))
BMW X6 Rebuilt Engines£1,800 - £4,800((supply only))
BMW X6 Used Engines£1,200 - £3,500((supply only))
BMW X6 Remanufactured Engines£3,000 - £7,500((supply only))
BMW X6 Refurbished Engines£1,400 - £3,200((supply only))
Compare BMW X6 engine prices with vetted UK suppliers
All engine types include a minimum 12-month unlimited mileage warranty when sourced through EngineMarket. Prices are typical UK market ranges based on historical quote data from our network and depend on exact engine code, variant, mileage and supplier. Use our free comparison tool above - enter your registration to get tailored quotes for your specific BMW X6 within hours.
Engine Sizes
BMW X6 Engines by SizeFind the Right Displacement for Your Variant
Every displacement fitted to the BMW X6 across all generations (E71, F16, G06) is listed below with compatible engine codes, variant names, power outputs and common failure notes.
The 3.0-litre straight-six diesel is the dominant engine across all three X6 generations, accounting for the majority of UK sales. From the single-turbo N57D30A in the early E71 xDrive30d to the quad-cam triple-turbo N57D30S in the F16 M50d and the latest B57D30C with 48V mild hybrid assist in the G06, this displacement defines X6 diesel ownership. Power ranges from 235hp to 381hp depending on turbo configuration and generation, with torque always exceeding 500Nm - making it well-suited to the X6's substantial kerb weight.
⚙
Engine Code(s)
N57D30A, N57D30B, N57D30S, B57D30B, B57D30C
▣
Compatible Models (UK)
xDrive30d (E71 2008-2014, F16 2014-2019, G06 2020-present), xDrive35d (E71 2008-2014), xDrive40d (E71 LCI 2010-2014, F16 2014-2019, G06 2020-present), M50d
ϟ
Power output
Verified by registration
△
Common Failure Points
Timing chain wear on pre-2015 N57 units (80,000-120,000 miles), EGR cooler coolant leaks across all generations, DPF blockage on urban-only cars
Production Years: F16 2014-2019
Get quotes for BMW X6 3.0L diesel enginesBMW X6 Engines Fuel Type
BMW X6 Engines by Fuel Type
Choose your BMW X6 engine by fuel type to compare realistic replacement prices, known issues, and compatible UK supply options - from early E71 diesels to the latest G06 mild hybrid V8s.
BMW X6 Diesel Engines
DieselDiesel power dominated the X6 across all three generations (E71 2008-2014, F16 2014-2019, G06 2020-present), accounting for over 80% of UK sales and the vast majority of engine replacement enquiries.
Common BMW X6 Diesel Engine Families
- •N57D30A - E71 xDrive30d/xDrive35d, timing chain tensioner weakness
- •N57D30B - E71 LCI and F16 xDrive30d/xDrive40d, EGR cooler failures
- •N57D30S - F16 M50d triple-turbo, complex turbo system
Found In
- •E71 First Generation (2008-2014) - N57D30A, N57D30B
- •F16 Second Generation (2014-2019) - N57D30B, N57D30S, B57D30B
- •G06 Third Generation (2020-present) - B57D30C
Known For
- •Excellent motorway fuel economy (38-45mpg real world)
- •N57 timing chain failure between 80k-120k miles - top replacement driver
- •EGR cooler coolant leaks across all diesel generations
Typical Diesel Models
- •xDrive30d
- •xDrive35d
- •xDrive40d
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BMW X6 Diesel Engines
DieselDiesel power dominated the X6 across all three generations (E71 2008-2014, F16 2014-2019, G06 2020-present), accounting for over 80% of UK sales and the vast majority of engine replacement enquiries.
Common BMW X6 Diesel Engine Families
- •N57D30A - E71 xDrive30d/xDrive35d, timing chain tensioner weakness
- •N57D30B - E71 LCI and F16 xDrive30d/xDrive40d, EGR cooler failures
- •N57D30S - F16 M50d triple-turbo, complex turbo system
Found In
- •E71 First Generation (2008-2014) - N57D30A, N57D30B
- •F16 Second Generation (2014-2019) - N57D30B, N57D30S, B57D30B
- •G06 Third Generation (2020-present) - B57D30C
Known For
- •Excellent motorway fuel economy (38-45mpg real world)
- •N57 timing chain failure between 80k-120k miles - top replacement driver
- •EGR cooler coolant leaks across all diesel generations
Typical Diesel Models
- •xDrive30d
- •xDrive35d
- •xDrive40d
BMW X6 Petrol Engines
PetrolPetrol X6 models are rarer in the UK but cover the widest power range - from the 306hp N54 straight-six in the E71 xDrive35i to the 625hp S63 V8 in the G06 X6 M Competition.
Common BMW X6 Petrol Engine Families
- •N54B30 - E71 xDrive35i, twin-turbo, high-pressure fuel pump failures
- •N55B30 - F16 xDrive35i, single twin-scroll turbo, Valvetronic issues
- •B58B30 - G06 xDrive40i, closed-deck design, coolant leak reports
Found In
- •E71 First Generation (2008-2014) - N54B30, N63B44A, S63B44A
- •F16 Second Generation (2014-2019) - N55B30, N63B44B, S63B44B
- •G06 Third Generation (2020-present) - B58B30, N63B44C, N63B44E, S63B44C
Known For
- •N63 V8 oil consumption (1L per 600 miles) - main petrol replacement driver
- •B58 straight-six considered BMW's most reliable modern petrol
- •S63 V8 in X6 M delivers 555-625hp with specialist rebuild costs
Typical Petrol Models
- •xDrive35i
- •xDrive40i
- •xDrive50i
BMW X6 Mild Hybrid (MHEV) Engines
MHEVThe latest G06 X6 (2020-present) introduced 48V mild hybrid technology on both diesel and petrol powertrains, adding electric assist and coasting functionality.
BMW X6 Mild Hybrid Engine Codes
- •B57D30C - 3.0L diesel with 48V starter-generator (xDrive30d/xDrive40d)
- •N63B44E - 4.4L V8 with 48V system (M60i xDrive)
- •S63B44C - 4.4L V8 in X6 M Competition (LCI models)
Found In
- •G06 Third Generation (2020-present) - xDrive30d, xDrive40d, M60i, X6 M Competition
Important Notes
- •48V starter-generator replaces the alternator, recovering braking energy
- •Provides 12hp electric boost under acceleration, reducing turbo lag
- •Enables coasting with engine off at motorway speeds for fuel savings
1-3 of 4
Not sure which fuel type your BMW X6 has- Enter your registration number above to instantly identify your engine code, fuel system and compatible replacement options - all backed by a minimum 12-month unlimited mileage warranty from UK BMW X6 specialists.
Engine YearsCompare quotes for 2008-2010 BMW X6 replacement engines →
BMW X6 Engines by YearWhat Was Fitted & WhenBMW X6 Engines by Year - What Was Fitted & When
This section maps every engine change across the BMW X6’s production life (2008 to present), helping you identify your exact unit and compare rebuilt engine prices from UK specialists.
⚙Key Changes
- ✓All-new E71 chassis (2008-2014), shared with X5 E70 platform
- ✓Sequential twin-turbo diesel introduced for xDrive35d
- ✓ActiveHybrid V8 model added to range in 2010
- ✓First BMW to offer twin-turbo V8 in SAV segment
▣Main Engines
N54B30- 3.0L Petrol (xDrive35i, 306hp)
M57D30- 3.0L Diesel (xDrive30d, 232hp, early cars)
N57D30A- 3.0L Diesel (xDrive30d/xDrive35d, 235-286hp)
N63B44A- 4.4L V8 Petrol (xDrive50i, 407hp)
▰Popular Models
- •xDrive35i
- •xDrive30d
- •xDrive35d
- •xDrive50i
🔧Known For
- ✓Bold coupé-SUV styling that created an entirely new segment
- ✓N54 twin-turbo petrol known for HPFP failures
- ✓N57 diesel timing chain issues emerging on high-mileage cars
- ✓Heavy vehicle (over 2,100kg) demands robust engine specification
Engine Codes Covered:
N54B30M57D30N57D30AN63B44ANot sure which year your BMW X6 was built- Enter your registration number and we'll identify the exact engine, model year, and compatible replacement options instantly - all backed by a minimum 12-month warranty from UK BMW X6 specialists.
FAQ