How much does a BMW X6 F16 engine replacement cost in the UK?

A reconditioned F16 engine typically costs £2,000–£15,000 supply only [BMW-QUOTE], depending on engine -the N20 four-cylinder petrol sits at £2,000–£3,800, while the S63 V8 in the X6 M can reach £8,000–£15,000. Fitting adds £650–£1,560. Use our calculator for a personalised figure.

What are the common problems with the BMW X6 F16?

Timing chain stretch on the N20 four-cylinder (xDrive28i), oil consumption and turbo failure on the N63 V8 (xDrive50i) due to hot-vee heat management issues, electric water pump failure on the N55 straight-six, DPF and EGR clogging on the N57 diesel range (xDrive30d, xDrive40d, M50d), and -unrelated to the engine -air suspension compressor failure on all F16s.

Is the BMW X6 F16 reliable?

It depends heavily on the engine and maintenance history. The N55 straight-six and N57 diesels are the most reliable -they have proven durability and are well-supported by the BMW specialist community. The N20 four-cylinder carries a timing chain risk that requires careful inspection. The N63 V8 is characterful but suffers from heat-related issues; the S63 in the X6 M is a masterpiece but demands deep pockets. A well-maintained F16 with the right engine can be a reliable luxury SUV.

Which F16 engine should I avoid?

No engine outright -but the N20 xDrive28i without documented timing chain history is the one purchase we consistently advise against. The N63 V8 xDrive50i without documented service history is also a watch-item due to hot-vee heat management issues. The S63 X6 M is a fantastic engine but maintenance costs are significant -budget accordingly. For most buyers, the N55 xDrive35i or N57 xDrive30d represents the safest choice.

How do I know if my F16 engine needs replacing?

Key warning signs: cold-start rattle (N20 timing chain), blue smoke on start-up or excessive oil consumption (N63 V8 valve stem seals/turbos), overheating or coolant loss (N55 water pump), DPF warning lights or loss of power (N57 diesel), or knocking or loss of power (S63 issues). Use our diagnostic calculator for a personalised assessment.

Is it worth replacing an F16 engine, or should I scrap the car?

Depends on the car's value. Against a well-kept £18,000 X6, a £2,500–£4,800 N57 recon is 15–30% of the car's value -safe. Against a tired £7,000 example, the same recon is 35–70% -borderline. Our 70% BMW threshold is the line: if the lowest viable replacement cost exceeds 70% of the vehicle's current market value, evaluate scrap value first.

How long do F16 engines last?

The N55 straight-six routinely exceeds 150,000–200,000 miles with proper servicing (regular oil changes, cooling system maintenance). The N57 diesel is similarly durable -many owners report 200,000+ miles. The N20 can also reach high mileages but the timing chain is the limiting factor -addressed proactively, it can comfortably reach 150,000+ miles. The N63 and S63 V8s can also reach high mileages but maintenance costs are significantly higher.

What is the difference between the E71, F16 and G06?

The E71 (2008–2014) is the first-generation X6 -the original 'Sports Activity Coupé' with a four-seat layout, based on the E70 X5 platform. The F16 (2014–2019, this page) is the second-generation X6 -more refined, with five seats, updated engines including the N55 and N57, and based on the F15 X5 platform. The G06 (2019–present) is the third-generation X6 -with the latest B-series engines (B58, B47), a more modern interior, and a more aggressive design. Costs and reliability profiles differ -see each generation's own page for specifics.

How do I find my BMW F16 engine code?

Listed on the VIN plate and vehicle documentation; the engine number is stamped on the block -on four-cylinder engines (N20) it's on the left-hand side; on six-cylinder engines (N55, N57) it's on the front of the block near the timing cover; on V8s (N63, S63) it's on the front of the block. Tell us your variant and approximate registration date and we'll identify it -20+ vetted BMW specialists will confirm it for free.

F16 Engine Replacement Cost UK -Compare Quotes

BMW X6 F16 Engine Codes -The Complete Database

Every engine fitted to the second‑generation X6 (F16) specifically -from the December 2014 launch to the July 2019 end of production.

Engine CodeFamilyFuelDisplacementPowerYears (F16)Variants (badges)Reliability2025 EnquiriesAvg. Recon Cost

N20B20AN20Petrol I4, turbo2.0L (1,997 cc)180 kW / 245 hp06/2015–07/2019xDrive28i★★★☆☆ [PROVISIONAL -pending dedicated Engine Page][PATTERN DATA]£2,000–£3,800 [BMW-QUOTE]

N55B30N55Petrol I6, turbo3.0L (2,979 cc)225 kW / 306 hp2015–2019xDrive35i★★★★☆ [PROVISIONAL -pending dedicated Engine Page][PATTERN DATA]£2,500–£4,800 [BMW-QUOTE]

N63B44BN63Petrol V8, twin‑turbo4.4L (4,395 cc)330 kW / 449 hp2014–2019xDrive50i★★★☆☆ [PROVISIONAL -pending dedicated Engine Page][PATTERN DATA]£4,500–£8,000 [BMW-QUOTE]

S63B44BS63Petrol V8, twin‑turbo4.4L (4,395 cc)423 kW / 575 hp2014–2019X6 M★★★☆☆ [PROVISIONAL -pending dedicated Engine Page][PATTERN DATA]£8,000–£15,000 [BMW-QUOTE]

N57D30AN57Diesel I6, turbo3.0L (2,993 cc)190–258 hp (multiple tune levels)2014–2019xDrive30d★★★★☆ [PROVISIONAL -pending dedicated Engine Page][PATTERN DATA]£2,500–£4,800 [BMW-QUOTE]

N57D30BN57Diesel I6, twin‑turbo3.0L (2,993 cc)230 kW / 313 hp2014–2019xDrive40d★★★½☆ [PROVISIONAL -pending dedicated Engine Page][PATTERN DATA]£3,000–£5,500 [BMW-QUOTE]

N57D30CN57Diesel I6, triple‑turbo3.0L (2,993 cc)280 kW / 381 hp2014–2019M50d★★★½☆ [PROVISIONAL -pending dedicated Engine Page][PATTERN DATA]£3,500–£6,500 [BMW-QUOTE]

Engine CodeFuelPowerYearsReliabilityEnquiriesAvg. Recon Cost

N20B20AN20Petrol I4, turbo180 kW / 245 hp06/2015–07/2019★★★☆☆ [PROVISIONAL -pending dedicated Engine Page][PATTERN DATA]£2,000–£3,800 [BMW-QUOTE]

N55B30N55Petrol I6, turbo225 kW / 306 hp2015–2019★★★★☆ [PROVISIONAL -pending dedicated Engine Page][PATTERN DATA]£2,500–£4,800 [BMW-QUOTE]

N63B44BN63Petrol V8, twin‑turbo330 kW / 449 hp2014–2019★★★☆☆ [PROVISIONAL -pending dedicated Engine Page][PATTERN DATA]£4,500–£8,000 [BMW-QUOTE]

S63B44BS63Petrol V8, twin‑turbo423 kW / 575 hp2014–2019★★★☆☆ [PROVISIONAL -pending dedicated Engine Page][PATTERN DATA]£8,000–£15,000 [BMW-QUOTE]

N57D30AN57Diesel I6, turbo190–258 hp (multiple tune levels)2014–2019★★★★☆ [PROVISIONAL -pending dedicated Engine Page][PATTERN DATA]£2,500–£4,800 [BMW-QUOTE]

N57D30BN57Diesel I6, twin‑turbo230 kW / 313 hp2014–2019★★★½☆ [PROVISIONAL -pending dedicated Engine Page][PATTERN DATA]£3,000–£5,500 [BMW-QUOTE]

N57D30CN57Diesel I6, triple‑turbo280 kW / 381 hp2014–2019★★★½☆ [PROVISIONAL -pending dedicated Engine Page][PATTERN DATA]£3,500–£6,500 [BMW-QUOTE]

Overview

BMW X6 F16 -Overview

The F16 is the second‑generation BMW X6, launched at the 2014 Paris Motor Show and produced from December 2014 to July 2019.

It succeeded the E71 and brought a more refined, luxurious interior, updated technology, and a wider range of engines. Built on the same L4 platform as the F15 X5, the F16 retained the sloping "coupé SUV" silhouette that defined the original X6, but offered five proper seats instead of the first‑generation's four. Under the bonnet, the F16 offered a comprehensive range of petrol and diesel engines: from the N20 four‑cylinder and N55 straight‑six petrols to the N63 and S63 V8s, plus the N57 diesel family -including the triple‑turbo M50d.

Key Facts

Platform

BMW L4 (shared with F15 X5)

Predecessor

BMW X6 (E71)

Successor

BMW X6 (G06)

Sibling body styles in this generation

None (F16 is 5‑door SAC only; F86 is X6 M)

Market Intelligence

The F16 generates consistent UK enquiries [PATTERN DATA], concentrated on xDrive30d diesel and xDrive35i petrol variants as these luxury SUVs enter affordable‑maintenance territory.

BMW X6 F16 -Overview

The F16 is the second‑generation BMW X6, launched at the 2014 Paris Motor Show and produced from December 2014 to July 2019.

It succeeded the E71 and brought a more refined, luxurious interior, updated technology, and a wider range of engines. Built on the same L4 platform as the F15 X5, the F16 retained the sloping "coupé SUV" silhouette that defined the original X6, but offered five proper seats instead of the first‑generation's four. Under the bonnet, the F16 offered a comprehensive range of petrol and diesel engines: from the N20 four‑cylinder and N55 straight‑six petrols to the N63 and S63 V8s, plus the N57 diesel family -including the triple‑turbo M50d.

Key Facts

Platform

BMW L4 (shared with F15 X5)

Predecessor

BMW X6 (E71)

Successor

BMW X6 (G06)

Sibling body styles in this generation

None (F16 is 5‑door SAC only; F86 is X6 M)

Market Intelligence

The F16 generates consistent UK enquiries [PATTERN DATA], concentrated on xDrive30d diesel and xDrive35i petrol variants as these luxury SUVs enter affordable‑maintenance territory.

Best & Worst Engines

Thin-Data Summary

“Most dependable: The N55B30 3.0‑litre straight‑six (xDrive35i) -BMW's more robust single‑turbo replacement for the N54 -delivers 306 hp with solid reliability and significantly fewer HPFP and injector issues than its predecessor. The N57 3.0‑litre diesel (xDrive30d) is also robust and torque‑rich, with many owners reporting 200,000+ miles with proper servicing. The N20 four‑cylinder carries the highest risk -timing chain stretch is a well‑documented issue shared with F30 N20 engines. The N63 V8 (xDrive50i) suffers from hot‑vee heat management problems and oil consumption. The S63 (X6 M) is a masterpiece but demands deep pockets for maintenance. Buyers should prioritise a well‑maintained N55 or N57 with documented service history.”

Who it's for:

Thin-Data Summary

“Most dependable: The N55B30 3.0‑litre straight‑six (xDrive35i) -BMW's more robust single‑turbo replacement for the N54 -delivers 306 hp with solid reliability and significantly fewer HPFP and injector issues than its predecessor. The N57 3.0‑litre diesel (xDrive30d) is also robust and torque‑rich, with many owners reporting 200,000+ miles with proper servicing. The N20 four‑cylinder carries the highest risk -timing chain stretch is a well‑documented issue shared with F30 N20 engines. The N63 V8 (xDrive50i) suffers from hot‑vee heat management problems and oil consumption. The S63 (X6 M) is a masterpiece but demands deep pockets for maintenance. Buyers should prioritise a well‑maintained N55 or N57 with documented service history.”

Who it's for:

BMW X6 F16 -Ownership Economics

EngineTypical MileageCommon Major FailureRepair Cost (Specialist)Replacement Cost (Recon)Ownership Verdict

N20B20A (xDrive28i)50k–100kTiming chain stretch£650–£1,800£2,000–£3,800

Risky Four -avoid without chain history

N55B30 (xDrive35i)80k–160kWater pump, carbon build‑up£300–£800£2,500–£4,800

Best Petrol -robust single‑turbo design

N63B44B (xDrive50i)60k–120kOil consumption, turbos, cooling£500–£1,500£4,500–£8,000

Hot‑Vee V8 -heat management is the weakness

S63B44B (X6 M)40k–80kCooling, turbos, rod bearings£1,000–£3,000£8,000–£15,000

Most Expensive -supercar costs in an SUV

N57D30A (xDrive30d)80k–180kDPF, EGR, injectors£300–£800£2,500–£4,800

Best Diesel -robust and proven

N57D30B (xDrive40d)80k–160kDPF, EGR, turbo£400–£1,000£3,000–£5,500

Twin‑Turbo Diesel -refined and powerful

N57D30C (M50d)60k–120kDPF, EGR, turbo complexity£400–£1,200£3,500–£6,500

Triple‑Turbo -engineering marvel, higher complexity

EngineTypical MileageCommon Major FailureRepair Cost (Specialist)Replacement Cost (Recon)Ownership Verdict

N20B20A (xDrive28i)50k–100kTiming chain stretch£650–£1,800£2,000–£3,800

Risky Four -avoid without chain history

N55B30 (xDrive35i)80k–160kWater pump, carbon build‑up£300–£800£2,500–£4,800

Best Petrol -robust single‑turbo design

N63B44B (xDrive50i)60k–120kOil consumption, turbos, cooling£500–£1,500£4,500–£8,000

Hot‑Vee V8 -heat management is the weakness

S63B44B (X6 M)40k–80kCooling, turbos, rod bearings£1,000–£3,000£8,000–£15,000

Most Expensive -supercar costs in an SUV

N57D30A (xDrive30d)80k–180kDPF, EGR, injectors£300–£800£2,500–£4,800

Best Diesel -robust and proven

N57D30B (xDrive40d)80k–160kDPF, EGR, turbo£400–£1,000£3,000–£5,500

Twin‑Turbo Diesel -refined and powerful

N57D30C (M50d)60k–120kDPF, EGR, turbo complexity£400–£1,200£3,500–£6,500

Triple‑Turbo -engineering marvel, higher complexity

The F16 rule

A £2,500–£5,000 N57 recon against a £6,000–£25,000 X6 sits at 10–80% of the car's value. On a sub‑£8,000 F16, that brushes our 70% BMW threshold -we'll honestly tell you to walk away. Against a well‑kept £18,000+ example, the same recon drops to a routine 15–30% -a repair decision, not a financial one. Value the car first.

Common Problems

01

N20

Timing Chain Stretch

Affected models:

F16 xDrive28i (2015–2019) with N20 engine.

Typical failure mileage:

50,000–100,000 miles.

Root cause:

The N20's timing chain guides are made of plastic that degrades over time -leading to chain stretch, rattling on start‑up, and eventual catastrophic engine failure if the chain snaps.

Tiered Cost Table

Our Recommendation

At the first sign of cold‑start rattle on an xDrive28i, get the chain inspected immediately -a £650–£1,800 preventative repair is dramatically cheaper than the £2,500–£4,500 replacement that follows if ignored.

Compare N20 engine prices for your F16

02

N63

V8 Oil Consumption & Turbo Failure

Affected models:

F16 xDrive50i (2014–2019) with N63 V8.

Typical failure mileage:

60,000–120,000 miles.

Root cause:

The N63's hot‑vee design leads to heat‑related issues -valve stem seals degrade causing oil consumption, and turbochargers can fail due to oil starvation.

Tiered Cost Table

Our Recommendation

If your V8‑powered F16 produces blue smoke on start‑up or shows excessive oil consumption, get the valve stem seals and turbos inspected -£800–£1,800 now is cheaper than the £4,500–£8,500 replacement that follows if ignored.

Compare N63 engine prices for your F16

03

N55

Electric Water Pump Failure

Affected models:

F16 xDrive35i (2015–2019) with N55 engine.

Typical failure mileage:

60,000–120,000 miles.

Root cause:

The N55's electric water pump is a known weak point -failure leads to overheating, loss of cooling, and potential engine damage if not addressed promptly.

Tiered Cost Table

Our Recommendation

On any N55‑powered F16, budget for water pump replacement at 80k miles -a £300–£600 preventative job is cheap insurance against the £2,500–£4,800 replacement that follows a catastrophic overheat.

Compare N55 engine prices for your F16

04

N57

Diesel DPF & EGR Clogging

Affected models:

F16 xDrive30d, xDrive40d, M50d (2014–2019) with N57 engine.

Typical failure mileage:

60,000–120,000 miles.

Root cause:

The N57 diesel's DPF and EGR system clog with soot, particularly on urban‑use vehicles -leading to reduced power, increased fuel consumption, and eventual engine warning lights.

Tiered Cost Table

Our Recommendation

If your diesel‑powered F16 is used primarily for short trips, a £150–£400 DPF and EGR service every 20k miles is cheap insurance against the £600–£1,200 replacement that follows.

Compare N57 diesel DPF repair quotes

05

F16

Air Suspension Compressor Failure (Non‑Engine)

Affected models:

All F16 variants with rear air suspension, particularly high‑mileage examples.

F16 Air Suspension Compressor Failure (Non‑Engine)

Typical failure mileage:

60,000–100,000 miles.

Root cause:

Not an engine failure, but a common non‑engine issue on the F16 -the rear air suspension compressor fails or the system develops leaks, causing the vehicle to sit unevenly or fail to raise.

Tiered Cost Table

Our Recommendation

Have the air suspension inspected on any F16 over 60,000 miles -it's one of the most common reasons an otherwise sound X6 becomes a costly ownership proposition.

Compare F16 air suspension repair quotes

F16 Engine Replacement Costs -By Engine and Condition

VariantEngine CodeUsed (Supply)Reconditioned (Supply)Rebuilt (Supply)Labour Hours

xDrive28iN20B20A£1,200–£2,500£2,000–£3,800£3,500–£5,50010–14 hrs

xDrive35iN55B30£1,500–£3,000£2,500–£4,800£4,500–£7,00010–14 hrs

xDrive50iN63B44B£2,500–£4,500£4,500–£8,000£7,000–£10,50016–20 hrs

X6 MS63B44B£4,000–£7,000£8,000–£15,000£12,000–£18,00018–24 hrs

xDrive30dN57D30A£1,500–£3,000£2,500–£4,800£4,000–£6,50010–14 hrs

xDrive40dN57D30B£1,800–£3,500£3,000–£5,500£4,500–£7,50012–16 hrs

M50dN57D30C£2,000–£4,000£3,500–£6,500£5,500–£8,50012–16 hrs

No Generation variance from the Model Page's baseline figures -F16 shares similar engine‑bay access with its F15 X5 sibling, so costs are inherited directly per the Authority Model, with no divergence note required. All costs are [BMW-QUOTE] from Table A -Engine Replacement Economics.

Core Variants

Diesel & Petrol Lineup

Diesel Variants

xDrive30dxDrive40dM50dxDrive35d / xDrive40d

Petrol Variants

xDrive28ixDrive35ixDrive50iX6 MM50i / M60i

Scope note: All variants listed are BMW X6 F16 (second generation) only -5‑door SAC body style. X6 E71 (first generation) and X6 G06 (third generation) are covered on their own Generation Pages.

Diesel & Petrol Lineup

Diesel Variants

xDrive30dxDrive40dM50dxDrive35d / xDrive40d

Petrol Variants

xDrive28ixDrive35ixDrive50iX6 MM50i / M60i

Scope note: All variants listed are BMW X6 F16 (second generation) only -5‑door SAC body style. X6 E71 (first generation) and X6 G06 (third generation) are covered on their own Generation Pages.

Market Intelligence

Most Requested E90 Engines (2025)

Most Requested E90 Variants

Average E90 Replacement Cost

Most Common E90 Failures

FAQ

BMW 3 Series E90 rear three-quarter view

Why UK BMW X6 F16 Owners Trust BMWEngines.uk

Trusted F16 Engine Suppliers
every garage and engine rebuilder in our network is vetted, rated and reviewed by real X6 owners, as part of the Engine Finders network.
Compare F16 Engine Replacement Companies
see prices, warranty terms and supply & fit options side-by-side before you commit.
UK Engine Replacement Services for BMW X6 F16
covering every variant from xDrive28i to X6 M and xDrive30d to M50d, with supply-only or full supply & fit available nationwide.

Find the best BMW X6 F16 engine replacement UK drivers rely on. Compare real prices from trusted specialists on EnginesMarket today and get back on the road with confidence.

Compare BMW X6 F16 Engine Prices on EnginesMarket

Why UK BMW X6 F16 Owners Trust BMWEngines.uk

Trusted F16 Engine Suppliers
every garage and engine rebuilder in our network is vetted, rated and reviewed by real X6 owners, as part of the Engine Finders network.
Compare F16 Engine Replacement Companies
see prices, warranty terms and supply & fit options side-by-side before you commit.
UK Engine Replacement Services for BMW X6 F16
covering every variant from xDrive28i to X6 M and xDrive30d to M50d, with supply-only or full supply & fit available nationwide.

Find the best BMW X6 F16 engine replacement UK drivers rely on. Compare real prices from trusted specialists on EnginesMarket today and get back on the road with confidence.

Compare BMW X6 F16 Engine Prices on EnginesMarket

BMW X6 F16 Engines -The Complete UK Guide

BMW X6 F16 Engine Codes -The Complete Database

BMW X6 F16 -Overview

BMW X6 F16 -Overview

Best &amp; Worst Engines

BMW X6 F16 -Ownership Economics

Common Problems

F16 Engine Replacement Costs -By Engine and Condition

Diesel &amp; Petrol Lineup

Diesel &amp; Petrol Lineup

Market Intelligence

FAQ

Why UK BMW X6 F16 Owners Trust BMWEngines.uk

Why UK BMW X6 F16 Owners Trust BMWEngines.uk

Best & Worst Engines

Diesel & Petrol Lineup

Diesel & Petrol Lineup