Second Hand Mercedes-Benz SL Fuel Pump

All generations of the Mercedes-Benz SL sold in the UK have been petrol or diesel-engined vehicles with a conventional fuel system, so every variant does have a fuel pump. The SL has never been offered as a pure electric or hybrid model in the UK market, so this is a part that exists across the entire range. That said, the type and specification of pump varies significantly between engine families, so the engine code is the critical detail when sourcing a used unit.

Almost certainly not as a straight swap — the R230 generation ran from 2001 to 2011 and the R231 generation ran from 2012 to 2022, and these are fundamentally different platforms with different engine families and fuel system architectures. Even within the R230, engines like the M113 V8 and M275 V12 use different pump setups, so a 2005 unit is unlikely to suit a 2011 car without confirming engine codes match exactly. Tell your breaker your engine code (found on the V5 or via a VIN check) and registration, and they can confirm compatibility.

Yes — trim or badge names like SL 350, SL 500, and SL 63 AMG correspond to different engines (for example the M272 V6, M273 V8, and M156 AMG V8 respectively in the R230/R231 era), and each engine family uses its own fuel pump specification. Trim level as such does not affect fitment, but the engine behind the badge absolutely does, which is why the engine code matters far more than the badge on the boot lid. Always give your breaker the engine code rather than just the model name to avoid being sent the wrong unit.

Both the 2015 SL 400 and the 2012 SL 350 sit within the R231 generation (2012–2022), but they use different engines — the SL 400 uses a turbocharged M276 V6 while the SL 350 of that era used a naturally aspirated M276 or M272, and turbocharged engines typically have higher fuel-pressure requirements that can mean a different pump specification. Sharing the same generation does not guarantee the pump is interchangeable across different engine variants. Confirm the engine codes of both donor and recipient vehicles with your breaker before purchasing.

No — the R129 (1989–2001) and R230 (2001–2011) are completely separate generations with different engine families, fuel system designs, and in-tank pump assemblies, and there is no meaningful crossover. These are entirely distinct platforms and parts from one will not transfer to the other. You should search specifically for a pump listed against the R230 and your engine code.

Mileage on a used fuel pump is worth considering because the pump is a wear item with a motor and moving parts, and a lower-mileage unit is generally preferable. When getting quotes through Findapart, it is worth asking each breaker what mileage the donor vehicle had, and whether the pump has been tested. Bear in mind that an ECU or immobiliser coding requirement is something you should confirm with your fitting garage, as some Mercedes fuel pump modules can be paired to the vehicle's systems — your breaker can advise on what they know about the specific unit they are supplying.