Second Hand Mercedes-Benz EQS Window Regulator

The EQS is a single-generation model that launched in 2021, so all examples sold in the UK to date sit within that same generation. Window regulators are door-specific and side-specific, so you must confirm whether the part is for the nearside (NS, passenger side) or offside (OS, driver side) front or rear door before ordering. Cross-year interchange within this generation is plausible, but always confirm against your exact registration with the breaker before purchasing.

Trim level and powertrain variant do not affect window regulator fitment on the EQS — the door frame and regulator mechanism are not changed between the 350, 450, or 580 grades. What does matter is which door the regulator is from, so make sure you specify NS or OS and whether it is a front or rear door. You may notice cosmetic differences between trim levels inside the door card, but the regulator itself is a fitment item, not a cosmetic one, so those differences do not affect whether it fits.

Both years fall within the same first-generation EQS, so interchange is a reasonable expectation, but Mercedes-Benz can introduce running production changes that are not publicly tied to a specific model year. Confirm the exact door position — nearside or offside, front or rear — and ask the breaker to check the part against your registration before you commit. Never assume fitment without that check.

The EQS saloon is a four-door model, and there is also a separate EQS SUV variant, which is an entirely different vehicle on a different body structure — window regulators from the SUV will not cross over to the saloon. If you own the saloon, confirm you are sourcing a part from a saloon donor car, and always specify the exact door position (NS/OS, front/rear) to the breaker. Mixing saloon and SUV parts is a common pitfall worth avoiding.

NS stands for nearside, which in the UK is the passenger side (left when sitting in the car), and OS stands for offside, the driver's side (right when sitting in the car). Window regulators are manufactured as mirror-image left and right units, so ordering the wrong side means the part will not fit regardless of the year or trim. Always double-check by looking at your door from inside the car and confirming with the breaker before they pull the part.

The powertrain — including battery size and motor configuration — has no effect on window regulator fitment whatsoever, so you do not need to match engine or motor type when sourcing a used part. The details that matter are the door position (front or rear), the side (NS nearside passenger side, or OS offside driver side), and confirming the part comes from the same EQS saloon body rather than the EQS SUV. Confirm those details with the breaker against your registration and you can source from any powertrain variant with confidence.