Used Mercedes-Benz C-Class Fuel Filter

It depends on the fuel type and generation. Diesel C-Class models (all generations: W202 1993–2000, W203 2000–2007, W204 2007–2014, W205 2014–2021) do have a replaceable fuel filter, usually integrated into or mounted near the fuel system. Most petrol C-Class models from around the W204 generation onwards use a non-serviceable lifetime filter sealed inside the fuel tank, so there is no separate external fuel filter to source as a used part — if you have a petrol C-Class and think you need a fuel filter, confirm with a breaker or mechanic whether your specific engine actually has a serviceable external unit before ordering.

The W203 and W204 are different generations with different fuel system layouts, so a straight swap across that boundary is unlikely. Even within the diesel variants, mounting points and filter housing designs changed between generations, meaning a W203 diesel filter will almost certainly not directly suit a W204. Give the breaker both registration numbers or engine codes from both vehicles and let them confirm compatibility rather than assuming interchangeability across that 2007 generation boundary.

No, trim level does not affect fuel filter fitment on the C-Class — SE, Sport, AMG Line, Avantgarde, and Elegance are cosmetic and equipment packages that have no bearing on the fuel system. What actually matters is the engine code, which on diesel variants determines the exact filter specification. Two C220d models on the same generation with different trim badges will use the same fuel filter, so focus on the engine code (found on your V5 or via a VIN check) rather than the trim name when sourcing.

The W204 ran from 2007 to 2014 and received a facelift in 2011, and there can be detail differences in fuel system components across that production run, particularly around ancillary mountings and housing designs. The engine code is the most reliable guide here — a C220 CDI and a C250 CDI in the same year use different engines and may use different filters. Confirm the exact engine code from your V5 or a VIN check and supply it to the breaker so they can match the filter correctly rather than going by year alone.

No — petrol and diesel fuel systems are entirely different, and the filters are not interchangeable. Diesel C-Class models have a dedicated external fuel filter designed to handle diesel fuel and often incorporate a water separator, while most modern petrol variants do not have a serviceable external filter at all. Always make clear to the breaker whether your car is petrol or diesel, and supply the engine code so they can source the correct part for your exact application.

The W205 generation began in 2014, so a 2015 C220 CDI is a different generation to your 2013 W204, and the two are very unlikely to share a directly interchangeable fuel filter despite carrying the same C220 CDI badge. Engine codes can differ between generations even where displacement and badge look similar, so check the engine code on your V5 for both vehicles and ask the breaker to confirm whether the filter housing, connections, and mountings match before purchasing.