Used Mercedes-Benz C-Class Oil Cooler

Yes, oil coolers are fitted to many C-Class variants, but not all — they are most commonly found on diesel engines and higher-output petrol engines, where managing oil temperature is critical; lower-output naturally aspirated petrol units may not have one at all. The engine code on your V5 or a VIN check is the most reliable way to confirm whether your specific engine was built with one. If you're unsure, give your registration to the breaker and they can verify against your exact spec.

Almost certainly not as a direct swap — the W203 and W204 are different generations with different engine families, and oil cooler design follows the engine code rather than the model name. Even if both cars share a similar displacement or fuel type, the ancillary mounting and coolant connections are likely to differ between generations. Quote your engine code to the breaker, not just the year, and they can match the correct unit.

The W204 was facelifted in 2011, and while the engine codes are often shared across both halves of the generation, minor ancillary and mounting changes mid-production mean you should confirm compatibility against your specific registration with the breaker rather than assume it fits. Engine code is the most important detail to supply — if the code matches exactly, the chances of compatibility are much higher. Always ask the breaker to cross-reference your reg before purchase.

No — body style makes no difference to oil cooler fitment; the oil cooler is part of the engine assembly, not the bodywork, so a saloon, estate (T-Model), or coupe with the same engine code will use the same unit. What matters is the engine code, fuel type (diesel or petrol), and gearbox type, as these can influence oil cooling system design. Ignore trim-level body style differences and focus on matching engine codes with the breaker.

Trim level alone (SE, Sport, AMG Line) makes no difference to oil cooler fitment — these are largely cosmetic and feature-based distinctions that don't change the engine. The exception worth noting is full AMG models (e.g. C63), which use distinct high-output engines with their own specific oil cooling requirements and are not interchangeable with standard trim units. Tell the breaker your engine code and they will identify the correct part regardless of badge or trim name.

These are separate generations with different engine families — the W205 introduced a new range of turbocharged four-cylinder petrol and diesel engines, and the oil cooler design will differ from W204 units even where displacement looks similar on paper. Fitting a W204 oil cooler to a W205 is very unlikely to work without modification, and it is not something we'd recommend assuming. Give your W205 engine code to the breaker and they will source a unit from the correct donor vehicle.