Second Hand Mercedes-Benz B-Class Fuel Filter

It depends entirely on the fuel type and generation of your B-Class. Petrol B-Class models (W245 and W246) typically have a lifetime fuel filter integrated into the fuel pump assembly inside the tank, which Mercedes does not list as a serviceable item and which breakers rarely supply separately. Diesel B-Class models, such as those with the OM607 or OM651 engine codes, do have an accessible external fuel filter that is a genuine serviceable part and the one most buyers are looking for.

The W246 generation ran from 2011 to 2018, with a facelift in 2014, so both a 2011 and a 2013 car are pre-facelift W246 models. For diesel variants the engine code is the critical factor — if both cars share the same engine code (for example OM651) the filter is very likely to be the same, but ancillary mounting or pipe-connector details can change during a production run, so confirm the specific part against your registration with the breaker before buying.

No, trim level makes no difference to fuel filter fitment on the B-Class — Sport, SE, AMG Line and similar trims are cosmetic and equipment packages, not mechanical changes. What matters is your engine code, which you can find on your V5C or via a VIN check, and your fuel type; a diesel B-Class Sport and a diesel B-Class SE with the same engine code will take the same filter.

The W246 facelift arrived in 2014 and while the basic engine codes carried over on many diesel variants, there can be mid-production changes to ancillary components including filter housings and connectors that mean parts do not always cross the facelift boundary. Supply your engine code and full registration to the breaker and ask them to verify the part number matches before you commit, rather than assuming pre- and post-facelift filters are interchangeable.

On petrol W245 and W246 B-Class models including the B200, the fuel filter is a sealed lifetime unit built into the in-tank fuel pump and is not designed to be serviced or replaced independently. If you are experiencing fuel delivery problems on a petrol B-Class, the part you are most likely looking for is the complete in-tank fuel pump assembly rather than a standalone filter, and breakers can supply that as a used unit matched to your engine code and generation.

Yes — on the B-Class, as with most Mercedes-Benz models, the engine code is the single most reliable identifier for mechanical parts like the fuel filter, because Mercedes used several different diesel engines across the same model years and the filter specification follows the engine rather than the calendar year or badge. You can find your engine code on your V5C logbook or by running a VIN check online, and giving this to the breaker alongside your registration will get you a much more accurate match than year alone.