Used Mercedes-Benz SL Radiator

The SL runs across several well-defined generations: R107 (1971–1989), R129 (1989–2001), R230 (2001–2012), R231 (2012–2020), and R232 (2020–present). Radiators are largely generation-specific, so always match to the correct generation first before looking at engine fitment within it. Quoting your generation code alongside your registration saves time when approaching a breaker.

The R230 ran from 2001 to 2012 with a facelift in 2006, and while the platform is shared across both phases, ancillary mounting points and cooling system pipework can vary across that facelift boundary. Name the boundary to the breaker and ask them to cross-reference against your specific registration before assuming the parts are interchangeable. Your engine code, which is on your V5 or available via a VIN check, is the most reliable detail to supply.

Yes, engine code is the most important fitment factor for a radiator, above almost everything else. An SL350 carrying the M272 engine and an SL500 carrying the M113 or M273 are different cooling setups despite sitting in the same body, so a radiator from one will not necessarily suit the other. Always confirm your engine code from the V5 or a VIN check and give it to the breaker.

Trim level on its own does not change radiator fitment, but engine code does – and AMG variants (such as SL55 AMG or SL63 AMG) carry different engines with higher cooling demands than standard models of the same generation. So if you have an AMG, the important distinction is the AMG engine code rather than the AMG badge itself. Tell the breaker your exact engine code and they can match from there.

It can do, because some automatic gearboxes use the engine radiator as part of their transmission fluid cooling circuit, meaning the radiator may have additional oil-cooler connections that a manual-transmission radiator lacks. Most SL models sold in the UK came with automatic gearboxes, but confirm your gearbox type with the breaker so they can ensure the radiator has the correct ports for your setup.

Both years fall within the R231 generation (2012–2020), which is a good starting point for compatibility. However, whether a specific radiator from the very first year of the R231 run crosses over cleanly to a 2015 car can depend on minor running production changes, so confirm against your registration with the breaker rather than assuming. Supplying your engine code alongside the year gives the breaker the best chance of finding a straight swap.