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Fitment on a used window winder motor varies by vehicle, so a bit of detail goes a long way. Our request form covers what breakers need to know, so every quote you get back is for the correct part:
The G-Class has run in one long-generation body (W463) from 1989, but Mercedes introduced a heavily revised second generation (W463A) in 2018, and motors from pre-2018 cars are very unlikely to fit post-2018 cars due to door and mechanism changes. If your donor car and your car are both pre-2018 or both post-2018 you have a much better chance, but always confirm compatibility with the breaker against both registrations before buying.
Yes, this matters significantly - the NS (nearside, passenger/left) and OS (offside, driver/right) motors are side-specific and are not interchangeable. When asking a breaker for a quote, always state clearly which side you need, and double-check the donor vehicle's side matches yours.
Trim level does not affect window winder motor fitment on the G-Class - the doors and their mechanisms are consistent across variants like G350d, G500, and AMG G63 within the same generation and body style. You may find cosmetic differences in door furniture between trims, but the motor itself is a mechanical fitment question tied to generation and side, not engine or spec level.
These fall either side of the major generational change - the W463 ran until 2018 and the revised W463A launched in 2019, so a 2015 motor comes from a fundamentally different body structure to a 2020 car. Fitment across this boundary is very unlikely, but confirm the exact part numbers with the breaker against both registrations to be certain.
The G-Class is offered as a 5-door in the standard passenger configuration, and the front and rear doors have different motors, so you must tell the breaker which door position you need - front or rear - as well as the side (NS or OS). Providing your registration to the breaker will help them identify the correct unit for your specific car.
The W463 ran from 1989 to 2018 and is a long production run, meaning there were interior and door revisions over the years that could affect motor compatibility even within the same generation. Name the generation to the breaker and provide both the donor and recipient registrations so they can verify the motor matches your specific door and mechanism before you commit.