BMW 7 Series 735i Engine ReplacementCompare Prices & Get Quotes

For a BMW 735i, replacement costs vary by generation. E38 735i (M62B35) engines range from £800-£1,800 used, £1,800-£3,200 reconditioned, and £2,300-£4,200 rebuilt. E65 735i (N62B36A) engines range from £1,200-£2,500 used, £2,500-£4,200 reconditioned, and £3,500-£5,500 rebuilt. Labour adds approximately £800-£1,200 for specialist fitment.

• E38 735i (M62): rebuilt from £2,300-£4,200
• E65 735i (N62): rebuilt from £3,500-£5,500
• All rebuilt engines include 12-month warranty

The most common telltale sign is a rattling noise from the engine on cold start, which may subside as oil pressure builds. You may also notice a check engine light, rough running, or plastic particles in the oil during a service. The M62 engine's plastic timing chain guides become brittle with age and typically fail between 80,000 and 100,000 miles.

• Rattling on cold start - especially noticeable
• Plastic particles in oil
• Check Engine Light may illuminate

It depends on the car's condition and value. For an E38 735i worth under £2,500, consider repair or a used engine rather than a full rebuild. For cars worth £3,000-£5,000, a reconditioned or rebuilt engine typically justifies the premium via warranty and reliability. For E65 735is worth £4,000+, replacement cost is small relative to vehicle value. If the car is otherwise in excellent condition, a rebuilt engine with upgraded components can extend its life by 80,000+ miles.

• E38 735i (1996-2001): evaluate repair vs replacement carefully
• E65 735i (2001-2005): rebuilt engine often the best long-term value
• All rebuilt engines include 12-month unlimited-mileage warranty

Most BMW 735i engine replacements take 2-4 days for supply and fit at a specialist garage. The V8 engine's complexity - particularly on N62 units - means careful removal and installation is essential. Collection and delivery options are available nationwide, with most engines dispatched within 24-72 hours of order confirmation.

• Supply typically 1-2 days
• Fitment typically 1-2 days
• Total turnaround: 2-4 working days

Yes - all rebuilt BMW 735i engines supplied through EnginesMarket include a minimum 12-month unlimited-mileage warranty. Used engines typically come with 3-6 month warranties, while reconditioned units usually include 6-12 month cover. Extended warranty options are available on most rebuilt units. Always confirm exact terms with your chosen supplier before purchase.

• Rebuilt engines: 12-month unlimited-mileage warranty
• Reconditioned engines: 6-12 month warranty
• Used engines: 3-6 month warranty typically

The M62 is a 3.5-litre naturally aspirated V8 producing 235-238hp, fitted to E38 735is from 1996-2001. The N62 is a 3.6-litre naturally aspirated V8 producing 272hp, fitted to E65 735is from 2001-2005. The N62 produces significantly more power but is also more complex, with additional failure points including valve stem seals and cooling system issues not present on the M62.

• M62: 3.5L naturally aspirated, 235-238hp, E38 (1996-2001)
• N62: 3.6L naturally aspirated, 272hp, E65 (2001-2005)
• N62 more complex with valve stem seal and cooling system failures