Used Mercedes-Benz CLS Oil Cooler

Yes, the CLS does have an oil cooler, though its presence and type varies by engine variant — the turbocharged diesel and petrol engines fitted to the CLS (which covers the vast majority of the range) typically use an oil cooler as standard, often integrated with or mounted near the oil filter housing. Naturally aspirated variants are rarer in the CLS lineup and may differ, so confirming against your specific engine code is important. The engine code, found on your V5 or via a VIN check, is the most reliable starting point before sourcing a used unit.

Almost certainly not — the W219 (2004–2010) and the C257 (2018–2023) are entirely different generations with different engine families, different oil filter housing designs, and different mounting arrangements, so the parts are not interchangeable. The generation boundary here is very significant mechanically, not just cosmetically. Always match the oil cooler to your exact engine code rather than just the CLS model name.

The W219 ran from 2004 to 2010 and the W218 from 2011 to 2018, and while some engine families overlapped between these generations, the oil cooler design and mounting can differ even where engine codes appear similar. You should treat these as separate generations and not assume direct interchangeability across that boundary — confirm the part number against your registration with the breaker before buying. Supplying your engine code gives the breaker the best chance of finding a confirmed match.

The W218 CLS received a facelift around 2014, but for a mechanical component like the oil cooler the determining factor is the engine code, not the facelift year. If the engine code is the same on both the pre- and post-facelift car, the oil cooler is likely compatible, but ancillary and mounting changes can occur mid-production without a formal facelift, so you should confirm against your specific registration with the breaker rather than relying on the facelift date alone.

Trim level itself does not affect fitment for a mechanical part like the oil cooler, but what matters here is that the CLS 350 and CLS 63 AMG use entirely different engines — a different engine code means a different oil cooler, so in practice these two cars would not share the same unit. The key is always the engine code, not the badge or trim name. Give the breaker your engine code and registration for the most reliable match.

Both years sit within the W219 generation (2004–2010) and the 320 CDI uses the same OM642 diesel engine throughout, which makes a match plausible, but you should still verify the engine code on both vehicles since minor ancillary or mounting changes can occur within a generation without a formal model update. Supply your engine code and registration to the breaker so they can cross-reference the part before it leaves their yard. Never assume fitment is guaranteed based on year and badge alone.