Mercedes-Benz SLK Gearbox Mount Replacement Parts

Yes, the SLK does have a gearbox mount — it is a rear-wheel-drive car and the gearbox (whether manual or automatic) is supported by a rubber mounting that isolates vibration and holds the unit in position. All SLK generations from the R170 (1996–2004) through the R171 (2004–2011) and R172 (2011–2016) used this type of mounting. If you are feeling vibration or a clunking noise through the transmission tunnel, the gearbox mount is a legitimate suspect worth investigating.

These are entirely separate generations with different floorpans and transmission tunnels, so an R170 mount will not transfer directly to an R171. Engine code is the most important matching detail within each generation, as different engines can use different mounts even on the same car. Always confirm the match against your specific registration and engine code with the breaker before buying.

Yes, this is one of the most important factors — engine code and gearbox type (manual or automatic) can determine exactly which mount is correct, and the SLK was offered with a range of four-cylinder and six-cylinder engines across its generations. Confirm your engine code (visible on your V5 or via a VIN check) and whether your car has a manual or the 7G-Tronic automatic before approaching a breaker. Supplying these details will give you a far more accurate match than year alone.

Trim level itself does not affect which gearbox mount you need, but the SLK 200 and SLK 350 badges denote different engines, and it is the engine code and gearbox type that actually determine the correct mount. So a cosmetic or specification difference between trim lines is irrelevant, but the underlying drivetrain difference absolutely matters. Always quote your engine code to the breaker rather than relying on the badge alone.

The R171 generation ran from 2004 to 2011, so a 2008 and a late 2011 car are both R171s, which is a promising starting point. However, Mercedes did make running changes during production, and whether the mount is identical across the full R171 range is something you should confirm with the breaker against both registrations and engine codes. Do not assume a match purely on generation — the engine code is the detail that matters most here.

The R172 ran from 2011 to 2016 and received a facelift in 2016 before the model ended, meaning the production overlap for a facelift comparison is quite narrow. Whether ancillary mountings changed at the facelift point is not something that can be stated with certainty — confirm this directly with the breaker using both registration numbers and engine codes. As always, the engine code is the single most reliable guide to compatibility.