Cheap Mercedes-Benz C-Class Engine

The W204 C-Class ran from 2007 to 2014, with a facelift in 2011, so engines from anywhere within that 2007–2014 window are your starting point. What matters most is matching the engine code exactly — find yours on your V5 or via a VIN check — because Mercedes used several different units under the same bonnet across those years and a code mismatch can cause serious problems. Confirm the specific engine code with your breaker against your registration before buying.

The W204 facelift arrived in 2011, and while the basic engine families carried across that boundary, Mercedes made running changes to ancillary components, mounts, and wiring that can affect a straight swap. Matching the engine code between donor and recipient gives you the best chance of compatibility, but whether a pre-2011 unit drops cleanly into a post-2011 car — or vice versa — is something you must confirm with your breaker against your specific registration.

The W205 generation ran from 2014 onwards and represents a significant platform change from the W204 (2007–2014), so the two generations are not considered interchangeable. Engine codes, mounts, and management systems differ between the two cars, and attempting a cross-generation swap would be a major engineering project rather than a straightforward used-parts fitment. Stick to sourcing an engine from the same generation and always match the engine code.

SE and AMG Line are trim levels on the C-Class, not separate mechanical specifications, so the engine fitted to a C220 SE and a C220 AMG Line of the same generation is the same unit — trim does not affect which engine is installed. What you may find is that cosmetic engine-bay items differ slightly between trim levels, but the engine itself is interchangeable when the engine code matches. Always verify the engine code rather than relying on the trim badge.

Yes, fuel type is fundamental — a diesel engine such as the OM651 family used in C220 CDI models is completely different from a petrol unit like the M274 found in C200 and C250 petrol variants, and the two cannot be swapped without extensive modifications. Always confirm your fuel type and the exact engine code before approaching a breaker, and make sure the replacement unit carries the same code as the one leaving your car.

Mercedes engines can be subject to ECU and immobiliser coding, which means a used engine may need professional reprogramming to communicate correctly with your car's systems. This is not something we can state definitively for every engine and year combination, so you must confirm with your breaker and a Mercedes specialist whether the specific unit you are buying will require coding work and what that involves before committing to the purchase.