BMW 5 Series 545e Engine ReplacementCompare Prices & Get Quotes

A used BMW 545e B58 engine typically costs £2,500-£4,500 depending on mileage and condition. A reconditioned unit ranges from £4,500-£6,500, while a fully rebuilt engine with warranty sits at £5,500-£8,000. Specialist fitting adds approximately £1,000-£1,600 in labour (14-18 hours at £65-£85/hr). Main dealer fitting costs 40-60% more, with some dealers quoting £14,000-£18,000 for a complete engine replacement.

• Used engine: £2,500-£4,500 supply-only
• Reconditioned: £4,500-£6,500 supply-only
• Rebuilt: £5,500-£8,000 supply-only with 12-month warranty
• Specialist fitting: £1,000-£1,600

The 545e's 11.6-12 kWh lithium-ion batterytypically degrades over time. Early warning signs include reduced electric range (less than the original 33-35 miles),the engine engaging more frequently than expected,slight hesitation during acceleration, and cooling fans running longer after shutdown.Warning lights on the dashboard may indicate battery management system faults.

• Gradually declining range is normal; sudden drops indicate cell failure
• Frequent engine engagement suggests battery degradation
• Warning lights require immediate specialist diagnosis

This depends entirely on the car's condition and value. A G30 545e (2020-2023) typically holds £18,000-£35,000 value depending on mileage and specification. A rebuilt B58 engine at £5,500-£8,000 is typically justifiable if the car is otherwise well-maintained. However, if the car has significant body damage, suspension issues, or a degraded hybrid battery requiring replacement, evaluate the total repair cost against the vehicle's value.

• £15k-£20k 545e: reconditioned engine is viable if keeping the car 2+ years
• £20k+ 545e: rebuilt engine with warranty usually makes financial sense
• Consider battery health alongside engine condition

The BMW 545e uses the B58B30M1 (also known as B58X) - a 3.0-litre turbocharged inline-six petrol engine producing 286hp (210 kW),combined with an electric motor producing 109hp.Total system output is 394hp (290 kW) and 600Nm (442 lb-ft) of torque.The electric motor is integrated into the ZF 8-speed automatic gearbox.The battery capacity is 11.6-12 kWh,offering a WLTP electric range of 54-57 km (33-35 miles).

• B58B30M1: 3.0L inline-six turbo petrol, 286hp
• Electric motor: 109hp integrated into the gearbox
• Total system: 394hp, 600Nm, 0-62mph in 4.6 seconds

A typical BMW 545e engine replacement takes 4-8 days from booking to collection, depending on parts availability and workshop workload. The B58 is a common engine, but the hybrid system adds complexity - sourcing a quality rebuilt or reconditioned unit may take 3-5 days. Supply and fit through our network typically completes within 5-8 working days.

• Supply-only: 3-5 days delivery
• Supply and fit: 5-8 days workshop time
• Hybrid system integration may add 1-2 days

Every engine supplied through EnginesMarket carries a minimum 12-month unlimited-mileage warranty. Rebuilt and reconditioned B58 engines typically include full parts and labour cover; used engines usually carry a 3-6 month warranty depending on the supplier. Always confirm that the hybrid system components (electric motor, battery management system) are covered under the warranty terms if they are affected by the engine replacement.

• Rebuilt/reconditioned: 12 months unlimited mileage
• Used: 3-6 months (check supplier terms)
• Verify hybrid system coverage