BMW X5 M60i Engine ReplacementCompare Prices & Get Quotes

A full BMW X5 M60i engine replacement typically costs £8,000-£12,000 supply-only for a reconditioned S68B44A, or £10,000-£14,000 for a rebuilt unit. Fitted by a specialist, expect £12,000-£17,000 total.

• S68B44A reconditioned: £8,000-£12,000 supply-only
• S68B44A rebuilt: £10,000-£14,000 supply-only
• Professional fitting adds £2,000-£3,500 depending on your location and workshop - the complex V8 and 48V system require specialist expertise

Common warning signs of S68 engine issues include excessive oil consumption, blue smoke from the exhaust, whining noises from the turbochargers, loss of power, and warning lights on the dashboard.

• Oil consumption exceeding 1L per 1,000 miles warrants investigation
• Whining or grinding noises may indicate turbocharger wear
• Check engine lights or drivetrain malfunction warnings require immediate diagnosis
• 48V system faults may trigger battery or charging system warnings

For a G05 X5 M60i worth £52,000-£80,000, engine replacement (£10,000-£14,000 supply-only) typically represents 15-25% of the vehicle's value - making it a financially viable option for most owners.

• Compare replacement cost against vehicle value - replacement is viable up to roughly 60-70% of the car's value
• Given the high vehicle value, replacement is usually justified if the body and interior are in excellent condition
• Low-mileage, well-serviced, or cherished M60i examples justify the investment
• Always factor the 12-month warranty into your decision

The BMW S68 engine has a manufacturer-stated service life of approximately 200,000 km (124,000 miles), but many examples may exceed 300,000 km (186,000 miles) with proper maintenance.

• Regular oil changes (every 8,000-10,000 miles) are critical for V8 longevity
• Oil consumption monitoring is essential - top up as needed
• The 48V mild-hybrid system components may require attention at higher mileages
• Turbocharger health should be inspected at 40,000-60,000 mile intervals

The S68 is BMW M GmbH's latest 4.4-litre twin-turbo V8, replacing the N63 in M Performance models like the X5 M60i. Key differences include:

• S68 features a higher compression ratio (10.5:1) and improved thermal management
• S68 incorporates a 48V mild-hybrid system with integrated starter-generator
• S68 uses a hot-vee design with one turbocharger per cylinder bank
• The S68 is generally more robust and efficient than its predecessor
• The N63 powered the earlier X5 M50i (2019-2022)

Swapping an M60i's S68 V8 for a standard X5 engine (B58 six-cylinder or B57 diesel) is technically extremely complex and rarely cost-effective. The engines have different mounts, wiring looms, ECUs, cooling systems, and transmission calibrations.

• S68 is a 4.4L V8; standard X5 engines are 3.0L six-cylinders
• ECU, wiring loom, cooling system, and transmission are all S68-specific
• The 48V mild-hybrid system is integrated with the S68
• Insurance must be notified of any non-standard engine swap
• Stick to like-for-like code-matching for warranty coverage and straightforward installation