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“Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”
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BMW X6 Engine ReplacementCompare Prices & Save
Get quotes today from trusted UK BMW X6 engine specialists. Compare prices on reconditioned, rebuilt and used engines - supply & fit available nationwide.
X6 Diesel Engines - from £1,500 to £5,500
-> Rebuilt units from £1,850 · Common codes: N57D30, B57D30, N57D30B, B57D30C
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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3 Simple Stepsto Finding the Best BMW X6 Replacement Engine
Get Instant Quotes from BMW Engine Specialists Across the UK - 100% free, no obligation. Most replacements completed within 3-5 days.
Most replacements completed within 3-5 days.
12-Month Warranty
Supply & Fit Available
Nationwide Delivery
Trusted UK Suppliers
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
- BMW X6 (E71) xDrive30d2008-2014£1,500-£3,200Timing chain wearN57D30ADiesel 3.0L
- BMW X6 (E71) xDrive35d2008-2014£1,600-£3,400Timing chain wearN57D30ADiesel 3.0L
- BMW X6 (E71) xDrive40d2010-2014£1,800-£3,800EGR cooler failureN57D30BDiesel 3.0L
- BMW X6 (E71) xDrive35i2008-2014£1,800-£3,500Valve seal leakN54B30Petrol 3.0L
- BMW X6 (E71) xDrive50i2008-2014£3,500-£6,500Oil consumptionN63B44APetrol 4.4L
- BMW X6 (E71) ActiveHybrid2010-2014£4,000-£7,000High-voltage batteryN63B44APetrol 4.4L
- BMW X6 (F16) xDrive30d2014-2019£1,800-£3,500EGR cooler failureN57D30BDiesel 3.0L
- BMW X6 (F16) xDrive40d2014-2019£2,000-£4,000DPF blockageN57D30BDiesel 3.0L
- BMW X6 (F16) xDrive35i2014-2019£2,000-£4,200HPFP failureN55B30Petrol 3.0L
- BMW X6 (F16) xDrive50i2014-2019£4,000-£7,500Valve stem wearN63B44BPetrol 4.4L
- BMW X6 (F16) X6 M2014-2019£6,000-£11,000Rod bearing wearS63B44BPetrol 4.4L
- BMW X6 (G06) xDrive30d2020-2025£2,500-£4,500AdBlue crystallisationB57D30CDiesel 3.0L
- BMW X6 (G06) xDrive40i2020-2025£2,800-£5,000Coolant leakB58B30Petrol 3.0L
- BMW X6 (G06) M60i xDrive2023-2025£5,500-£9,500Oil pump failureN63B44EPetrol 4.4L
Last updated: 22 May, 14:59
Customer Reviews
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Models We Cover
BMW X6 Engine ReplacementAll Variants Covered
From the xDrive30d diesel to the high-performance X6 M Competition, our network of UK BMW X6 engine specialists helps you compare rebuilt, reconditioned and used engine prices. Typical price range for a rebuilt unit with 12-month warranty is £1,500-£12,000 - supply & fit available nationwide.
Core Diesel Range
Specs245-286hp
Years2008-2025
Rebuilt£1,500-£4,500
Core Petrol Range
Performance & Hybrid Range
Variant Directory
All BMW X6 Variants - Engine Replacement Coverage
A full alphabetical listing of every BMW X6 trim covered by our network. All entries link to a dedicated variant page, where prices are further broken down by engine code, model year, and condition type. Click a live link to compare quotes.
Diesel Variants
xDrive30dxDrive30d M SportxDrive35dxDrive35d M SportxDrive40dxDrive40d M SportM50dM50d M SportsDrive18dsDrive20d
Petrol Variants
ActiveHybridxDrive35ixDrive35i M SportxDrive40ixDrive40i M SportxDrive50ixDrive50i M SportxDrive50i IndividualM50iM50i M SportMM CompetitionPerformance & Hybrid VariantsActiveHybridMM CompetitionM50dM50ixDrive45exDrive45e M Sport
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.
Petrol Engines
Extracted from detailed petrol and performance engine families across BMW X6 variants.
Hybrid / Electrified Engines
Extracted from electrified powertrains and hybrid engine families used in BMW X6 variants.
Can't find your 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.
Common Problems
BMW X6 Engine Problems
What It Costs to Fix & When Replacement Makes Sense
Every rebuilt engine includes a minimum 12-month unlimited mileage warranty.
1. BMW X6 N57 Timing Chain Failure
Why Pre-2015 Diesel Engines Fail Prematurely
Affected Models
BMW X6 xDrive30d, xDrive35d, xDrive40d (2008-2015, N57D30A & N57D30B)
Typical Failure Mileage
80,000 - 120,000 miles
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 Minor | £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 Intermediate | £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 Best Value | £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
Best next step for bmw x6 n57 timing chain failure
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.
Don't Let Engine Failure Write Off Your BMW X6
Whether you're facing N57 timing chain failure, N63 oil consumption, or a blocked DPF on your diesel X6, the cost of repair or replacement doesn't have to write off your car. EnginesMarket makes it simple to compare prices from trusted UK BMW X6 specialists - all of whom supply rebuilt engines with upgraded components designed to prevent the original failure from recurring. With 12-month unlimited mileage warranties, nationwide delivery, and fitting available across the UK, you can get back on the road without paying main dealer premiums.
Compare BMW X6 Engine Replacement Prices Now →BMW X6 Engine Problems
What It Costs to Fix & When Replacement Makes Sense
Affected Models
BMW X6 xDrive30d, xDrive35d, xDrive40d (2008-2015, N57D30A & N57D30B)
Typical Failure Mileage
80,000 - 120,000 miles
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.
Minor - Preventative Chain Replacement - Replace before failure
Dealer
£2,200 - £3,200
Specialist
£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
Dealer
£4,500 - £6,500
Specialist
£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
Dealer
£7,500 - £11,000
Specialist
£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
Best next step for bmw x6 n57 timing chain failure
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.
Don't Let Engine Failure Write Off Your BMW X6
Whether you're facing N57 timing chain failure, N63 oil consumption, or a blocked DPF on your diesel X6, the cost of repair or replacement doesn't have to write off your car. EnginesMarket makes it simple to compare prices from trusted UK BMW X6 specialists - all of whom supply rebuilt engines with upgraded components designed to prevent the original failure from recurring. With 12-month unlimited mileage warranties, nationwide delivery, and fitting available across the UK, you can get back on the road without paying main dealer premiums.
Compare BMW X6 Engine Replacement Prices Now →Disclaimer: All prices are indicative UK market ranges based on historical quote data and repair requests from our network of engine specialists. Dealer pricing is estimated based on published main dealer labour rates and genuine OEM parts pricing. Specialist pricing reflects actual quote data from EnginesMarket's UK network. Actual costs vary depending on damage severity, vehicle condition, variant, and workshop location within the UK. Use our free comparison tool to get tailored quotes for your specific BMW X6 and engine code. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier.
12-Month Warranty
Upgraded Components
Nationwide UK Delivery
Save vs Main Dealer Price
Replacement 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.
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
BMW X6 Diesel Engine Sizes
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 |
| Production Years | F16 2014-2019 |
Common Failure Points
Watch for these known weak 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
Not sure which engine size your BMW X6 needs? Enter your registration number above - we'll identify the exact displacement, engine code and compatible replacement options instantly. All engines supplied through EngineMarket include a minimum 12-month unlimited mileage warranty from UK BMW X6 specialists.
BMW X6 Engines Fuel Type
BMW X6 Engines by Fuel Type
BMW X6 Diesel Engines
BMW X6 Diesel Engines
Diesel 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 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
B57D30B - Late F16 xDrive30d/xDrive40d, revised timing design
B57D30C - G06 xDrive30d/xDrive40d with 48V mild hybrid assist
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
DPF blockage issues on urban-only cars
M50d triple-turbo offers 381hp from 3.0 litres
Typical Models (UK)
xDrive30d
xDrive35d
xDrive40d
M50d
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 Years
BMW X6 Engines by YearWhat 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.
2008-2010 - E71 First Generation Launch
Major Engine Change
The E71 X6 launched BMW’s ‘Sports Activity Coupé’ concept with a full range of turbocharged six and V8 engines.
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
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
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
Engine Codes Covered
N54B30M57D30N57D30AN63B44A
Common Replacement Enquiries
BMW X6 xDrive30d engine replacement
BMW X6 N57 timing chain repair
BMW X6 2009 engine cost
Compare quotes for 2008-2010 BMW X6 replacement engines
2008-2010 - E71 First Generation Launch
Major Engine Change
The E71 X6 launched BMW’s ‘Sports Activity Coupé’ concept with a full range of turbocharged six and V8 engines.
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
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
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)
Engine Codes Covered
N54B30M57D30N57D30AN63B44A
Popular Models
xDrive35i
xDrive30d
xDrive35d
xDrive50i
Common Replacement Enquiries
BMW X6 xDrive30d engine replacement
BMW X6 N57 timing chain repair
BMW X6 2009 engine cost
Compare quotes for 2008-2010 BMW X6 replacement engines
Year Finder
Not sure which year your BMW X6 was built?
Not 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
BMW X6 Engine ReplacementFrequently Asked Questions
Question 1
How much does a BMW X6 engine replacement cost in the UK?
A BMW X6 engine replacement typically costs £4,500 to £8,000 including supply and fitting, depending on the engine code, variant and whether you choose a used, reconditioned or rebuilt unit.
Key points
- • Used BMW X6 engines: £3,000 - £5,000 supply only
- • Reconditioned BMW X6 engines: £2,000 - £3,500 supply only
- • Rebuilt BMW X6 engines: £4,000 - £6,000 supply only
- • Professional fitting adds £1,000 - £2,000 including ECU coding
Question 2
Is the BMW X6 N57 diesel engine reliable? I keep hearing about timing chain failure.
The N57 diesel engine in the X6 is powerful and smooth, but timing chain failure on pre-2015 models is a genuine risk - typically between 80,000 and 120,000 miles.
Key points
- • N57 timing chain rattle is the first warning sign - address immediately
- • Preventative chain replacement costs far less than a full engine rebuild
- • Post-2015 B57 diesel engines have improved chain design and fewer failures
- • Some owners report complete engine failure without prior warning symptoms
Question 3
What are the most common BMW X6 engine problems by generation?
The E71 (2008-2014) suffers N57 timing chain and N63 oil consumption issues. The F16 (2015-2019) improved reliability but EGR cooler failures persist. The G06 (2020+) is more reliable but has AdBlue and mild hybrid battery concerns.
Key points
- • E71 xDrive30d/40d: N57 timing chain wear (80k-120k miles)
- • E71 xDrive50i/X6 M: N63/S63 valve stem seal oil consumption
- • F16 M50d: Triple-turbo complexity and EGR cooler leaks
- • G06 diesel: AdBlue crystallisation and DPF regeneration issues
Question 4
Should I buy a petrol or diesel BMW X6?
Choose diesel (xDrive30d/40d) for lower running costs, motorway cruising and better resale value - most UK X6 sales are diesel. Choose petrol (xDrive40i, M50i, X6 M) for smoother power, fewer emissions system issues and lower purchase price on used market.
Key points
- • Diesel X6: 30-38 MPG real-world, higher torque for towing
- • Petrol X6: 18-25 MPG but fewer DPF/AdBlue problems
- • xDrive40i (B58) is most reliable petrol choice with 340hp
- • xDrive30d/40d dominate UK replacement enquiries - more specialists available
Question 5
What causes the N63 V8 engine in the X6 xDrive50i to burn so much oil?
The hot-vee design cooks valve stem seals, causing them to harden and leak oil into the combustion chamber - some early N63 engines consume 1 litre every 600 miles. A failing crankcase vent (PCV) system makes oil consumption worse.
Key points
- • Valve stem seal replacement costs £2,200-£3,500 at a specialist
- • Upgraded Viton seals last longer than factory originals
- • PCV/oil separator failure allows raw oil into intake manifold
- • Symptom: white/blue smoke on start-up after idle
Question 6
How many miles will a BMW X6 engine last?
Well-maintained BMW X6 diesel engines (N57, B57) regularly reach 150,000-200,000 miles before major work. Petrol V8s (N63, S63) typically need valve seals or chain guides around 80,000-120,000 miles.
Key points
- • N57/B57 diesels with regular oil changes: 180k+ miles achievable
- • N63 V8 petrol: valve stem seals fail 60k-90k miles - budget for repair
- • S63 X6 M engine: rod bearing wear possible 70k-100k miles
- • One owner reported total engine failure at 31,000 miles due to injector fault
Question 7
Can I replace my BMW X6 engine myself to save money?
DIY BMW X6 engine replacement is not recommended - the xDrive transfer case alignment, engine coding to the immobiliser (DME), and the weight of the unit require specialist equipment and BMW-specific diagnostic software.
Key points
- • Engine weighs over 250kg - requires professional hoist and stand
- • DME/ECU coding needed - engine won't start without immobiliser pairing
- • xDrive front axle and transfer case alignment is complex
- • No warranty on self-fitted engines - specialist fitting includes 12-month cover
Question 8
What is the most reliable BMW X6 engine to buy?
The B58 3.0-litre petrol in the G06 xDrive40i (2020+) is widely considered BMW's most reliable modern engine. For diesel buyers, the B57D30C in post-2020 G06 models has resolved the earlier N57 timing chain issues.
Key points
- • B58 petrol: Closed-deck design, no timing chain or HPFP issues
- • B57 diesel (post-2020): Revised chain location and tensioner design
- • Avoid early N57 (pre-2015) unless timing chain already replaced
- • F16 generation (2015-2019) considered most balanced for reliability
Question 9
Why does my BMW X6 go into limp mode with a turbo fault code?
Limp mode on a diesel X6 (P2263) is often a failed VGT turbo actuator - not the entire turbo. A specialist can replace just the actuator for £500-£850, saving you from a full turbo replacement at £1,600-£2,800.
Key points
- • VGT actuator failure is common on N57 diesel turbos from 70k-110k miles
- • Fault codes P2263 (turbo actuator) or P0243 (wastegate solenoid)
- • Actuator-only repair possible if turbo shaft has no play
- • Check oil supply line filter - blockage kills turbos repeatedly
Question 10
Is it worth replacing the engine in my high-mileage BMW X6?
Yes, if the body and transmission are in good condition - a specialist rebuilt engine with upgraded components costs £4,500-£8,000 fitted, far less than a replacement X6 which could be £15,000-£30,000 for a comparable used example.
Key points
- • Rebuilt engine includes 12-month unlimited mileage warranty
- • Upgraded timing components address original failure points
- • X6 values hold well - worth investing in a good example
- • Specialist rebuild £4,000-£6,000 plus fitting = under £8,000 total
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Why UK BMW X6 Owners Trust EngineMarket
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