How much does a BMW X5 M engine replacement cost in the UK-

A BMW X5 M engine replacement typically costs £6,000-£14,000 supply-only for rebuilt units, or £10,000-£18,000 fitted by a specialist. The S63 V8 is a complex, high-performance engine requiring specialist knowledge. Used S63B44 engines: £5,000-£9,000 supply-only. Reconditioned units: £8,000-£14,000 supply-only. Professional fitting adds £1,500-£3,000 depending on workshop location. Dealership replacement quotes often exceed £20,000.

Is the BMW X5 M S63 engine reliable-

The S63 is a remarkable engine when properly maintained, but it has well-documented weaknesses. Early versions (S63B44) are prone to rod bearing wear, timing chain tensioner failure, and turbocharger issues. Later revisions (S63TU, S63TU2, S63TU4) addressed many of these concerns. Rod bearings typically need attention between 60,000-100,000 miles. Frequent oil changes (every 5,000-6,000 miles) are critical. Cooling system components should be inspected regularly. Later F95-generation engines are significantly more robust.

What are the signs of rod bearing failure in a BMW X5 M-

The most common warning signs are a knocking noise from the bottom end (especially on cold start), metallic debris in the oil, low oil pressure warnings, and in severe cases, engine seizure. Knocking noise that increases with RPM is the most serious warning sign. Oil analysis can detect bearing material in the oil before failure. Ignoring rod bearing noise will destroy the engine. Preventative bearing replacement at 60,000 miles is strongly recommended.

Is it worth replacing the engine on a high-mileage BMW X5 M-

For an E70 X5 M worth £18,000-£30,000, a rebuilt S63 at £10,000-£15,000 can make financial sense if the body, gearbox, and interior are in excellent condition. For F85 and F95 examples worth £35,000+, replacement is generally viable. Compare replacement cost against vehicle value - specialist advice: replacement viable up to 70% of car's value. Low-mileage, well-maintained examples justify higher investment. Factor 12-month warranty into replacement decision. Always get a full vehicle inspection before committing to major work.

What are the differences between the E70, F85 and F95 X5 M engines-

Each generation uses a different iteration of the S63 V8: E70 (2009-2013): S63B44, 555hp, first-generation M V8. F85 (2014-2018): S63B44T2, 575hp, Valvetronic added. F95 (2020-present): S63B44B, 600-625hp, latest TU4 version. Later generations are more powerful and generally more reliable, with BMW addressing many early issues.

Should I buy a used or rebuilt engine for my BMW X5 M-

A rebuilt engine with upgraded components - particularly rod bearings and timing chain components - offers significantly better long-term reliability than a used engine of unknown provenance. For a high-performance M car, the additional cost of a rebuilt unit is typically justified. Used engines: lower upfront cost but unknown history and no warranty. Rebuilt engines: upgraded components, 12-month warranty, known quality. Reconditioned engines: mid-range option with some new components. For X5 M ownership, rebuilt is strongly recommended for peace of mind.

BMW X5 M SPECIALISTS

BMW X5 M Engine Replacement Compare Prices & Get Quotes

Get quotes today from trusted UK BMW X5 M engine specialists. Compare prices on reconditioned, rebuilt and used S63 V8 engines for the full-fat M division SUV - supply & fit available nationwide.

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BMW X5 M Engine

from£6,000 to £14,00...

Usedfrom £5,000
Reconditionedfrom £8,000
Common codesS63B44, S63B44T2, S63B44B

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How it works

3 Simple Steps to Finding the Right Replacement Engine

Clear information first, then the right engine and specialist for your exact vehicle.

Variant History

BMW X5 M Engine History & Specs at a Glance

The BMW X5 M is the full-fat M division version of the X5 - distinct from the M Performance M50d models. First launched in 2009 on the E70 platform, the X5 M has spanned three generations, each powered by a version of BMW's S63 4.4-litre twin-turbo V8. With power outputs ranging from 555hp to 617hp, the X5 M represents the pinnacle of BMW's high-performance SUV engineering.

2009
E70 X5 M launched, S63B44 4.4-litre twin-turbo V8, 555hp, 680Nm, 0-60mph in 4.5 seconds
2014
F85 X5 M debuts, S63B44T2 engine, 575hp, 750Nm, 0-60mph in 4.2 seconds
2015
2018 - F85 X5 M and X5 M Competition production, 575hp, xDrive all-wheel drive
2020
F95 X5 M launched, S63B44B engine, 600hp, 750Nm, 0-60mph in 3.8 seconds
2020
present - F95 X5 M and X5 M Competition, up to 617hp in Competition form
2023
G05 LCI M Competition, 625hp, M xDrive, 0-60mph in 3.7 seconds

Every engine fitted to the BMW X5 M is covered below, with UK rebuilt pricing and known failure points specific to the S63 V8 family.

Engine Codes & Pricing

BMW X5 M Engine Codes Specifications & Replacement Cost

Find your exact engine code, specs and UK replacement cost guide.

S63B44 — 4.4L Twin-Turbo V8 Petrol (2009-2013)

Power Output: 555hp (414kW)
Torque: 680Nm (501lb-ft)
Years Fitted: 2009-2013 (E70 X5 M)
Engine Features: Hot-vee twin-turbo V8, DOHC 32-valve, direct injection, cross-bank exhaust manifold

Can’t find your exact engine code?-> Get quotes for S63B44 BMW X5 M engine replacement

-> Get quotes for S63B44 BMW X5 M engine replacement

Common Problems

BMW X5 M Engine Problems Repair Cost vs Replacement

The BMW X5 M's S63 4.4-litre twin-turbo V8 is a masterpiece of M division engineering, delivering brutal performance and a soundtrack to match. However, like any high-output engine, it has well-documented weaknesses - particularly rod bearing wear, timing chain tensioner failure, and turbocharger issues. Every rebuilt S63 engine supplied through EnginesMarket includes upgraded components addressing the original failure points - plus a minimum 12-month unlimited mileage warranty.

Common failure points and repair options

Rod Bearing Wear

Affected: BMW X5 M (E70 2009-2013, F85 2014-2018, S63B44, S63B44T2)
Typical failure mileage: 60,000-100,000 miles

Root cause

The S63 engine's rod bearings are subjected to extreme loads, particularly during high-RPM use. Insufficient lubrication, oil degradation, or manufacturing tolerances can cause premature wear. If ignored, bearing failure leads to catastrophic engine seizure - a £10,000+ repair bill.

Repair options

Repair tier	Dealer price	Specialist price
Preventative - Rod Bearing Replacement	£3,500-£5,500	£2,500-£4,000
Full Replacement - rebuilt/reconditioned engine	£15,000-£22,000	£10,000-£15,000

Our recommendation

On any S63-powered X5 M approaching 60,000 miles, preventative rod bearing replacement at a specialist is the single best investment you can make. It's far cheaper than a full engine replacement and adds years of life to the engine. If you hear a knocking noise from the bottom end, stop driving immediately - continued use will destroy the engine.

-> Compare rebuilt S63 engine prices for your BMW X5 M

Timing Chain Tensioner Failure

Affected: BMW X5 M (E70 2009-2013, F85 2014-2018, S63B44, S63B44T2)
Typical failure mileage: 70,000-120,000 miles

Root cause

The S63's timing chain tensioner can fail, allowing the chain to slacken. This produces a rattling noise on cold start that disappears as oil pressure builds. If ignored, the chain can skip or snap - allowing pistons to contact valves and destroying the engine.

Repair options

Repair tier	Dealer price	Specialist price
Timing Chain & Tensioner Replacement	£2,500-£4,000	£1,800-£2,800
Full Replacement - rebuilt/reconditioned engine	£15,000-£22,000	£10,000-£15,000

Our recommendation

If your X5 M develops a rattling noise on cold start that disappears as the engine warms, act immediately. Preventative chain and tensioner replacement at a specialist costs under £3,000 - far less than the £10,000+ for a full engine replacement once the chain fails.

-> Get quotes for S63 timing chain repair and replacement

Turbocharger Failure

Affected: BMW X5 M (E70 2009-2013, F85 2014-2018, F95 2020-present, S63B44, S63B44T2, S63B44B)
Typical failure mileage: 80,000-150,000 miles

Root cause

The S63's twin turbos operate under extreme stress, generating significant heat. Oil starvation, contamination, or carbon buildup can cause turbocharger failure. Symptoms include loss of power, excessive smoke (white or blue), and a high-pitched whining noise from the engine bay.

Repair options

Repair tier	Dealer price	Specialist price
Turbocharger Replacement	£3,000-£5,000	£2,000-£3,500
Full Engine Replacement	£15,000-£22,000	£10,000-£15,000

Our recommendation

Regular oil changes with the correct BMW-approved oil are critical for turbocharger longevity on the S63. If you notice power loss or unusual noises, have the turbos inspected immediately. Ignoring turbo failure can send debris through the engine - turning a £2,500 repair into a £10,000+ replacement.

-> Compare BMW X5 M turbo replacement and engine prices

Don't Let Engine Failure Write Off Your BMW X5 M

A failed S63 V8 doesn't have to mean the end of the road for your X5 M. Whether you're facing rod bearing wear, timing chain tensioner failure, turbocharger issues, or any other catastrophic problem, EnginesMarket connects you with trusted UK BMW M specialists who supply rebuilt S63 engines with upgraded components specifically designed to address the original failure points. Every engine comes with a minimum 12-month unlimited mileage warranty, nationwide delivery, and supply & fit options across the UK. Compare prices today - and keep one of BMW's most thrilling SUVs on the road without paying the main dealer premium.

Compare BMW X5 M Engine Replacement Prices Now ->

FAQ

BMW X5 M Engine ReplacementFrequently Asked Questions

Everything BMW X5 M owners usually ask before choosing a rebuilt, reconditioned or used replacement engine.

A BMW X5 M engine replacement typically costs £6,000-£14,000 supply-only for rebuilt units, or £10,000-£18,000 fitted by a specialist. The S63 V8 is a complex, high-performance engine requiring specialist knowledge.

Used S63B44 engines: £5,000-£9,000 supply-only
Reconditioned units: £8,000-£14,000 supply-only
Professional fitting adds £1,500-£3,000 depending on workshop location
Dealership replacement quotes often exceed £20,000

-> Compare BMW X5 M engine replacement prices from UK specialists

The S63 is a remarkable engine when properly maintained, but it has well-documented weaknesses. Early versions (S63B44) are prone to rod bearing wear, timing chain tensioner failure, and turbocharger issues. Later revisions (S63TU, S63TU2, S63TU4) addressed many of these concerns.

Rod bearings typically need attention between 60,000-100,000 miles
Frequent oil changes (every 5,000-6,000 miles) are critical
Cooling system components should be inspected regularly
Later F95-generation engines are significantly more robust

-> Get quotes for BMW X5 M S63 engine repairs

The most common warning signs are a knocking noise from the bottom end (especially on cold start), metallic debris in the oil, low oil pressure warnings, and in severe cases, engine seizure.

Knocking noise that increases with RPM is the most serious warning sign
Oil analysis can detect bearing material in the oil before failure
Ignoring rod bearing noise will destroy the engine
Preventative bearing replacement at 60,000 miles is strongly recommended

-> Get quotes for BMW X5 M rod bearing replacement

For an E70 X5 M worth £18,000-£30,000, a rebuilt S63 at £10,000-£15,000 can make financial sense if the body, gearbox, and interior are in excellent condition. For F85 and F95 examples worth £35,000+, replacement is generally viable.

Compare replacement cost against vehicle value - specialist advice: replacement viable up to 70% of car's value
Low-mileage, well-maintained examples justify higher investment
Factor 12-month warranty into replacement decision
Always get a full vehicle inspection before committing to major work

-> Check BMW X5 M engine replacement value for your specific generation

A rebuilt engine with upgraded components - particularly rod bearings and timing chain components - offers significantly better long-term reliability than a used engine of unknown provenance. For a high-performance M car, the additional cost of a rebuilt unit is typically justified.

Used engines: lower upfront cost but unknown history and no warranty
Rebuilt engines: upgraded components, 12-month warranty, known quality
Reconditioned engines: mid-range option with some new components
For X5 M ownership, rebuilt is strongly recommended for peace of mind

-> Compare used vs rebuilt BMW X5 M engine prices

Why Choose Us

Compare BMW X5 M Engine Prices Today

Comparing quotes for your BMW X5 M is free, no-obligation, and specific to your exact M division SUV and its S63 engine code - S63B44, S63B44T2, or S63B44B. Whether you need a used replacement, a reconditioned unit, or a full rebuilt engine with upgraded rod bearings and timing components, our network of trusted UK BMW M specialists delivers transparent pricing and nationwide coverage. Don't let a failed engine end the life of one of BMW's most thrilling SUVs - compare prices today and get back on the road with confidence.

11,000+11,000+ BMW X5 M engines supported through our network

12-Month12-Month Warranty on every rebuilt S63 V8 engine

NationwideNationwide UK delivery

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Compare quotes from trusted UK BMW X5 M engine specialists with warranty-backed rebuilt, reconditioned and used options nationwide.

BMW X5 M Engine Replacement Compare Prices & Get Quotes

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3 Simple Steps to Finding the Right Replacement Engine

BMW X5 M Engine History & Specs at a Glance

BMW X5 M Engine Codes Specifications & Replacement Cost

S63B44 — 4.4L Twin-Turbo V8 Petrol (2009-2013)

BMW X5 M Engine Problems Repair Cost vs Replacement

Rod Bearing Wear

Timing Chain Tensioner Failure

Turbocharger Failure

Don't Let Engine Failure Write Off Your BMW X5 M

BMW X5 M Engine ReplacementFrequently Asked Questions

Compare BMW X5 M Engine Prices Today