Mercedes-Benz A-Class 200d Engine Replacement Compare Prices & Get Quotes

A replacement OM654 engine for an A200d typically costs between £1,000 and £5,000 depending on condition. Used units start from £1,000-£2,200, reconditioned from £2,500-£4,200, and fully rebuilt from £2,800-£5,000. Labour for supply & fit adds £400-£800.

• Used OM654.920: £1,000-£2,200
• Reconditioned OM654.920: £2,500-£4,200
• Rebuilt OM654.920: £2,800-£5,000

The A200d uses the OM654 engine, which has a timing chain, not a belt. Unlike the belt-driven OM607/OM608 in the A180d, the OM654's timing chain is designed to last the life of the engine with proper maintenance. Regular oil changes using the correct Mercedes-approved spec are essential to maximise chain life.

• OM654: timing chain - durable, no scheduled replacement
• No belt replacement interval to worry about
• Regular oil changes are critical for chain longevity

It depends on the car's condition and mileage. A W177 A200d is typically worth £10,000-£22,000 - a rebuilt OM654 engine (£2,800-£5,000) is usually well within the car's value and can be a worthwhile investment if the car is in good condition. For higher-mileage examples, an AdBlue or EGR repair is often more economical than a full replacement. Always compare the cost of repair against the car's market value.

• Vehicle worth £10,000-£15,000: rebuilt engine viable for good condition cars
• Vehicle worth £15,000+: rebuilt engine usually justifies cost
• AdBlue/EGR repairs: often more economical than full replacement

The OM654 engine is capable of 200,000+ miles with proper maintenance. Regular oil changes (every 10,000 miles or annually) using the correct Mercedes-approved oil spec are essential. The timing chain is durable and not a scheduled replacement item. AdBlue system components and EGR valves are the main wear items - addressing issues promptly prevents more serious engine damage.

• OM654: 200,000+ miles achievable
• Regular oil changes are critical
• AdBlue and EGR are the main maintenance items

The AdBlue system on the A200d can fail due to crystallisation in the dosing injector, a failed heater element in the AdBlue tank, or degraded NOx sensors. The ECU responds with a "No Start in XXX miles" countdown when AdBlue dosing is compromised. These faults are common on 2018-2022 models and can be expensive to repair at main dealers.

• AdBlue heater failure - common on 2018-2020 models
• NOx sensor degradation - sensors have a limited service life
• Countdown warning - do not ignore; seek specialist diagnosis

Both the A200d and A220d use the same OM654 2.0-litre diesel engine architecture, but with different power outputs. The A200d produces 150 hp (110 kW) and 320 Nm of torque, while the A220d produces 190 hp and 400 Nm. The A220d is effectively a higher-output tune of the same engine, with both using an 8-speed 8G-DCT automatic transmission.

• A200d: 150 hp, 320 Nm
• A220d: 190 hp, 400 Nm
• Same OM654 engine architecture, different tune