Used Mercedes-Benz SL Window Switch

The Mercedes SL has gone through several distinct generations — R107 (1971–1989), R129 (1989–2001), R230 (2001–2012), R231 (2012–2020), and R232 (2020–present) — and window switches are not interchangeable across these generations as the door architecture, wiring, and switch cluster designs differ significantly between them. If you are shopping near a generational boundary, such as around 2001 (R129 to R230) or 2012 (R230 to R231), always confirm with the breaker using your exact registration before purchasing. Buying within the same generation gives you the best chance of a correct fit, but let the breaker verify against your reg to be sure.

Yes, the Mercedes SL is a two-door roadster/convertible that has been fitted with electric windows and corresponding window switches across its modern generations, including the R129, R230, R231, and R232. Being a premium two-seat model, electric windows were standard equipment rather than a trim-level option on virtually all variants sold in the UK, so a window switch is a genuine part for this vehicle. If you have an early R107, it is worth confirming with the breaker whether your specific car was fitted with electric windows, as some earlier examples had manual windows.

The Mercedes SL has been sold in various specification grades — such as SL 300, SL 350, SL 400, SL 500, SL 55 AMG, SL 63 AMG, and SL 65 AMG — but trim or engine variant does not affect window switch fitment, as the door and switch assembly is determined by the generation and door position rather than the powertrain. You can therefore buy a switch from a lower or higher specification SL of the same generation without concern about engine size. Do be aware that higher-spec cars may have had different switch surround finishes or button layouts, so there could be a cosmetic difference, but the underlying fitment is generation-specific.

Yes, this matters. On the Mercedes SL, the driver's door switch (OS — offside, right-hand side in UK right-hand-drive cars) typically incorporates controls for both windows, whereas the passenger door switch (NS — nearside, left-hand side) usually only controls the passenger window. Always tell the breaker which side you need — NS or OS — as the two switches are not interchangeable. Supplying your registration will help the breaker pull the correct part for your generation and side.

The R230 ran from 2001 to 2012 and the R231 from 2012 to 2020, and despite some visual similarities in listings, these are different generations with different door structures, wiring connectors, and switch designs. A switch from an R230 should not be assumed to fit an R231, and vice versa. Always confirm the generation and your exact registration with the breaker before buying, particularly when sourcing a part that appears visually close but crosses a generation boundary.

Both a 2007 and a 2010 Mercedes SL fall within the R230 generation (2001–2012), so they share the same basic door and switch architecture, which is a positive sign for compatibility. However, the R230 did receive updates during its production run, so it is still worth confirming with the breaker using both the donor and recipient registrations to make sure the connector and switch format match exactly. Providing your reg to the breaker is the safest step before committing to a purchase.