Used Mercedes-Benz CLA Window Regulator

The CLA has had two distinct generations: the first-generation (C117) ran from 2013 to 2019, and the second-generation (C118) launched in 2019 onwards, and regulators are not interchangeable between these two generations as the door structures differ. Within the first generation, there was a facelift in 2016, and whether a pre-facelift regulator crosses that 2016 boundary is something you should confirm with the breaker against your registration. Always specify your generation, door position, and NS or OS side when requesting a quote.

Yes, side matters significantly — a nearside (NS, passenger/left) regulator is not the same as an offside (OS, driver/right) regulator, as the mechanisms are mirror images of one another. Always tell the breaker whether you need NS or OS, and quote your registration so they can verify the exact door and generation. Using the wrong side will mean the regulator will not fit correctly.

Trim level does not affect window regulator fitment on the CLA — the door frame and regulator mechanism are the same regardless of whether your car is an SE, Sport, or AMG Line. You may find cosmetic differences such as different door card finishes or pull handles on higher trims, but the regulator itself is shared across the range. What does matter is the generation (C117 2013–2019 or C118 2019 onwards) and which side (NS or OS) you need.

Both a 2015 and a 2017 CLA fall within the first-generation C117 (2013–2019), however the first generation received a facelift in 2016, which means your 2017 car is a post-facelift model and your 2015 is pre-facelift. Whether the regulator crosses that 2016 facelift boundary without issue is not something that can be guaranteed here, so confirm the interchange with the breaker using both registration plates before purchasing. Make sure to specify NS or OS side in any case.

The CLA Shooting Brake (X117) and the CLA saloon/coupé (C117) are distinct body styles with different door structures, so their window regulators are not interchangeable. Always make clear to the breaker exactly which body style your vehicle is — CLA saloon/coupé or CLA Shooting Brake — as well as the generation and NS or OS side required. Quoting your registration is the simplest way to avoid any mix-up.

Although the first-generation CLA (C117, 2013–2019) shares some platform architecture with the W176 A-Class, the two models have different body structures and door assemblies, so their window regulators are generally not directly interchangeable. Cross-model compatibility of this kind is something you should raise directly with the breaker, quoting both registrations, rather than assuming parts will swap over. Stick to CLA-sourced parts where possible to be safe.