Second Hand Mercedes-Benz SLK Air Filter

Yes, every SLK variant — whether petrol or diesel, naturally aspirated or turbocharged — has an air filter, as all internal combustion engines require one to clean intake air before it enters the engine. The SLK was produced across three generations: the R170 (1996–2004), the R171 (2004–2011), and the R172 (2011–2016). Because the SLK used a wide range of different engines across these generations, the air filter housing, filter shape, and dimensions vary considerably between them, so you'll need to match to your specific engine rather than just the SLK name.

A 2003 SLK sits in the R170 generation, while a 2005 SLK is an R171 — these are entirely different platforms with different engine families, so the air filters are not interchangeable. Even within those generations, fitment depends on the specific engine code (for example, an M111 petrol in the R170 uses a different filter to the M112 V6 in the same generation). Always check your engine code from your V5 or a VIN check before ordering, as this is the most reliable way to match the correct filter. Your breaker will confirm compatibility against your registration.

Yes, the badge reflects a different engine, and the air filter is matched to the engine rather than the badge, so an SLK200 Kompressor, an SLK250, and an SLK350 each use a different filter even within the same R171 or R172 generation. The most reliable approach is to quote your engine code (found on your V5 document or via a VIN check) rather than just the badge, as some engine displacements were revised or replaced mid-generation. Trim level — for example, whether you have a standard or AMG Line specification — has no effect on air filter fitment whatsoever.

A 2008 SLK is in the R171 generation (2004–2011), which received a facelift around 2008, though the engine lineup and air filter specifications were not fundamentally redesigned at that point. That said, whether any ancillary changes to the air filter housing or mounting occurred at the facelift is something you should confirm with the breaker against your specific registration, rather than assume either way. Providing your engine code alongside your registration plate gives the breaker the best chance of supplying the correct filter first time.

In most cases the gearbox type does not affect the air filter, as the filter is dictated by the engine rather than how the drive is transmitted. However, if your SLK is fitted with the supercharged Kompressor engine or the later turbocharged units found in the R172 generation, make sure the breaker is aware of this, as forced-induction engines can use different air intake arrangements compared to naturally aspirated versions of a similar displacement. Quoting your engine code removes any ambiguity and is the safest approach.

An air filter is a mechanical filtration component with no electronic content, so it does not require any coding or pairing to your vehicle — unlike some electrical parts, it simply fits and functions. The key requirement is that it is the correct filter for your engine, in sound and clean condition, as used filters from a breaker should ideally be inspected before fitting. Confirm the engine code and generation with the breaker against your registration to make sure you receive the right unit.