Second Hand Mercedes-Benz SLK Fuel Filter

It depends on the generation and engine. R170 (1996–2004) and R171 (2004–2011) SLKs with petrol engines generally have an inline fuel filter, though on many later R171 and R172 (2011–2020) variants the filter is located inside the fuel tank as part of the fuel pump assembly and is not a serviceable standalone item. If your SLK is a later R171 or R172, confirm with the breaker whether a separate filter exists for your specific engine code before ordering.

These are from different generations — the R170 ran from 1996 to 2004, and the R171 from 2004 to 2011 — so a direct swap is very unlikely. The filter mountings, fuel line connectors, and flow ratings can all differ between generations. Always quote your engine code (found on your V5 or a VIN check) to the breaker so they can match the correct part.

Trim level and badge name don't determine the fuel filter; what matters is the engine code beneath the badge. An SLK 200 Kompressor and an SLK 350 carry entirely different engines and may require different filters, but two cars both badged SLK 200 with the same engine code should need the same filter regardless of any other trim differences. Give the breaker your engine code rather than just the badge to make sure you get the right match.

The R171 generation ran from 2004 to 2011 with a facelift around 2008, and engine codes varied across the range, so you cannot assume all R171 filters interchange. A filter from another R171 with the same engine code is the most likely candidate, but ancillary mounting and connector details can change mid-production. Check your engine code on your V5 and confirm with the breaker against your full registration before buying.

Yes — diesel fuel filters are a completely different component from petrol ones, and the filtration standards, water-separation requirements, and fittings are not interchangeable. However, it is worth noting that the SLK range was predominantly petrol-engined throughout its production life, so if you are looking for a diesel filter specifically, confirm with the breaker that a diesel variant was actually available for your exact model year and engine code.

Where the engine codes are genuinely identical and the filter is a shared Mercedes part, it can sometimes be the same component, but the SLK's compact bodyshell means mounting points and pipe routing may differ even with a matching engine. This is exactly the kind of detail to run past the breaker with both registrations to hand before committing to a purchase.