Used Mercedes-Benz B-Class Radiator

The B-Class W246 generation ran from 2011 to 2018, with a facelift in 2015, so a 2013 car is pre-facelift and a 2016 car is post-facelift. Engine code is the critical factor here, and because your cars sit either side of that 2015 facelift boundary, ancillary fittings and mounting points may have changed mid-production. Name your engine code (from your V5 or a VIN check) and confirm directly with the breaker against your registration before buying.

Engine code matters above everything else for mechanical parts like a radiator — two B-Class cars from the same year can carry different engines with different cooling requirements and different physical connections. The engine code is printed on your V5C or can be pulled from a VIN check, and it is the single most useful piece of information you can give a breaker. Always quote it when asking for a quote on Findapart.

Trim level names like B180 and B200 refer to the badge and power output rather than an entirely different engine family, but the underlying engine codes can differ, and cooling capacity can vary between them. Where engine codes do match, the radiator is likely to be the same unit, but confirm the engine code from your V5 and check with the breaker against your registration rather than relying on the badge alone.

No, trim level does not affect radiator fitment on the W246 B-Class — Sport, SE, and other trim grades are cosmetic and equipment distinctions, not mechanical ones. What may differ is whether a trim-specific car came with a different engine option, so again the engine code from your V5 is what to quote. Expect any cosmetic differences between donor and your car (such as grille surrounds) to be irrelevant to whether the radiator itself fits.

Fuel type is a key fitment variable and petrol and diesel engines typically have different cooling demands and pipe configurations, so a petrol-sourced radiator is unlikely to be a direct swap onto a diesel car. Confirm your engine code with the breaker, as that code will make the fuel type and specification clear without any ambiguity. Never assume interchangeability across fuel types without the breaker verifying it against your registration.

The W246 generation started in 2011, making early cars now over a decade old and potentially at the older end of stock availability at breakers, though used parts remain in circulation. Engine code is still the deciding factor for fitment, so have it ready from your V5 when requesting quotes. Getting quotes from multiple breakers on Findapart gives you the best chance of finding the right unit for an earlier example.