Mercedes-Benz SLK Fuel Injection Pump Replacement Parts

The SLK R171 generation ran from 2004 to 2011, so both years sit within the same generation, but fitment depends far more on engine code than model year — a pump from a same-engine-code R171 is a much stronger starting point than simply matching the year. There were also running production changes to ancillary and mounting details across the R171's life, so confirm against your exact registration with the breaker before buying. Never assume year-to-year compatibility without checking the engine codes match.

The R170 ran from 1996 to 2004 and the R171 from 2004 to 2011 — these are distinct generations with different engine families, so a pump crossing that boundary is very unlikely to be a straightforward swap. Engine codes between the two generations differ, and the fuel injection systems are not the same design. Route any specific cross-generation interchange question to the breaker with both engine codes to hand.

On the SLK, the badge or trim name itself does not determine fitment — what matters is the engine code, fuel type, and gearbox type underneath it. Two cars both badged SLK 200 Kompressor could have different engine codes depending on year, so always check the engine code on your V5 or via a VIN check rather than relying on the badge alone. Trim level differences are cosmetic and do not affect which injection pump is required.

No: diesel and petrol injection pumps are completely different components and are not interchangeable under any circumstances. Make sure you confirm the fuel type with the breaker and match it to your engine code to ensure you receive the correct pump.

Gearbox type can affect fuel injection pump compatibility on some Mercedes engines because engine management calibration can differ between manual and automatic variants, so it is an important detail to supply to the breaker alongside your engine code. Whether ECU pairing or immobiliser coding to your specific vehicle is required after fitting a used pump is something you must confirm with the breaker against your registration, as this varies and cannot be guaranteed in advance.

The single most useful detail is your engine code, which you can find on your V5 logbook or via a VIN check — it tells the breaker far more than the model year or badge alone. You should also supply your fuel type, gearbox type (manual or automatic), and model year, as these all influence compatibility. Whether a specific used pump will require ECU pairing or immobiliser coding to your vehicle is something to confirm directly with the breaker before purchase.