BMW 6 Series 640d Engine ReplacementCompare Prices & Get Quotes

A BMW 6 Series 640d N57D30 engine replacement typically costs £2,500-£4,500 for a used unit, £4,500-£7,000 for a reconditioned engine, and £6,000-£9,000 for a fully rebuilt engine with warranty. These are supply-only prices; fitting adds approximately 12-16 hours of labour at specialist rates.

• Used N57D30 engines start from £2,500 but may require additional service work
• Reconditioned units offer the best balance of cost and reliability
• Rebuilt engines include upgraded timing components and 12-month warranty
• Specialist fitting typically adds £780-£1,040 in labour

The most common early warning sign is a rattling noise from the engine on cold start, lasting a few seconds. As the chain stretches further, you may notice delayed starting, misfires, loss of power, or the engine warning light illuminating.

• Cold-start rattle is the earliest and most important warning sign
• Pre-2015 N57 engines are at higher risk of timing chain issues
• Ignoring the rattle can lead to catastrophic engine failure
• Have the timing chain inspected immediately if you hear unusual startup noises

Yes - if your BMW 6 Series 640d is otherwise in good condition, a rebuilt N57D30 engine from £6,000-£9,000 is often worthwhile. With 640d values ranging from £9,000-£22,000, replacement cost typically represents a reasonable proportion of the vehicle's value.

• A rebuilt N57D30 with upgraded components can extend the car's life by 80,000+ miles
• Reconditioned engines offer strong value at £4,500-£7,000
• Compare replacement cost against your car's current market value
• 12-month warranty provides peace of mind on the investment

Most BMW 6 Series 640d engine replacements take 1-3 days for supply and fit at a specialist garage. The N57D30 is a complex twin-turbo diesel, so the job typically requires 12-16 hours of labour.

• Engine removal and installation requires specialist equipment
• xDrive variants add approximately 1 hour to fitting time due to transfer case alignment
• Collection and delivery options are available nationwide
• Most suppliers can dispatch a replacement engine within 24-72 hours

Yes - every rebuilt BMW 6 Series 640d engine supplied through EnginesMarket comes with a minimum 12-month unlimited-mileage warranty. Used engines typically have 3-6 month warranties, while reconditioned units often include 6-12 months of cover.

• Rebuilt N57D30 engines: 12-month unlimited-mileage warranty standard
• Extended warranty options are available with some suppliers
• All warranties cover parts and workmanship
• Always confirm exact warranty terms before purchase

The BMW 6 Series 640d F06/F12/F13 models from 2015 onwards (N57D30T1) are Euro 6 compliant and ULEZ-friendly. Pre-2015 models (N57D30T0, N57D30A) are Euro 5 and may not be ULEZ compliant, though some are exempt depending on specific NOx readings.

• Check your V5C registration document for Euro emissions standard
• 2015+ facelift models are Euro 6 and ULEZ compliant
• Rebuilt engines can be supplied with cleaned DPF and AdBlue systems for MOT compliance
• Enter your registration above to check ULEZ status