BMW 7 Series 750i Engine ReplacementCompare Prices & Get Quotes

For a BMW 750i, replacement costs vary significantly by generation. E38 750i (M73B54 V12) engines range from £1,800-£3,200 used, £3,200-£5,500 reconditioned, and £4,500-£7,500 rebuilt. E65 750i (N62B48 V8) engines range from £2,500-£4,000 used, £4,000-£6,500 reconditioned, and £5,500-£8,500 rebuilt. F01 750i (N63B44) engines range from £3,500-£7,000 used, £6,000-£11,000 reconditioned, and £8,000-£14,000 rebuilt. G11 750i (N63B44C/D) engines range from £4,500-£9,000 used, £7,500-£14,000 reconditioned, and £10,000-£18,000 rebuilt. Labour adds approximately £1,000-£1,500 for specialist fitment.

• E38 750i (M73): rebuilt from £4,500-£7,500
• E65 750i (N62): rebuilt from £5,500-£8,500
• F01 750i (N63): rebuilt from £8,000-£14,000
• G11 750i (N63): rebuilt from £10,000-£18,000
• All rebuilt engines include 12-month warranty

The most common symptom is the engine cranking but not starting when hot, particularly after a short stop. The check engine light may illuminate after a hot engine restart. The problem is caused by air in the cooling system collecting in the area of the turbocharger electric coolant pump. This is a well-documented issue affecting N63 engines in the 750i.

• Engine cranks but won't start when hot
• Check Engine Light illuminates after hot restart
• Longer cranking time before starting when hot

It depends on the car's condition and value. For an E38 750i worth under £4,000, consider repair or a used engine rather than a full rebuild. For E65 750is worth £4,000-£8,000, a reconditioned or rebuilt engine typically justifies the premium via warranty and reliability. For F01 750is worth £8,000-£15,000, rebuilt engines make sense if the car is otherwise in excellent condition. For G11 750is worth £15,000+, 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 750i (1994-2001): evaluate carefully - V12 complexity adds cost
• E65 750i (2002-2008): valve stem seal replacement often the best value
• F01/G11 750i (2008-present): rebuilt engine often the best long-term value
• All rebuilt engines include 12-month unlimited-mileage warranty

Most BMW 750i engine replacements take 3-5 days for supply and fit at a specialist garage. The V8 and V12 engine complexity - particularly on N63 twin-turbo units - means careful removal and installation is essential. V12 M73 engines are also labour-intensive due to engine bay packaging. 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 2-3 days (V12 takes longer)
• Total turnaround: 3-5 working days

Yes - all rebuilt BMW 750i 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, particularly important for complex N63 V8 engines. 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 M73 is a 5.4-litre naturally aspirated V12 producing 326hp, fitted to E38 750is from 1994-2001. The N62 is a 4.8-litre naturally aspirated V8 producing 367hp, fitted to E65 750is from 2002-2008. The N63 is a 4.4-litre twin-turbocharged V8 producing 407-530hp, fitted to F01 (2008-2015) and G11 (2015-present) 750is. The N63 is the most powerful but also the most complex, with additional failure points including turbochargers, high-pressure fuel pumps, and hot restart issues not present on the M73 or N62.

• M73: 5.4L naturally aspirated V12, 326hp, E38 (1994-2001)
• N62: 4.8L naturally aspirated V8, 367hp, E65 (2002-2008)
• N63: 4.4L twin-turbo V8, 407-530hp, F01/G11 (2008-present)
• N63 most complex with turbo, timing chain, and hot restart issues