Mercedes-Benz GLB Window Motor Replacement Parts
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A buyer's guide to used Mercedes-Benz GLB window motor
No two window motors are quite the same across different vehicles, so getting the specifics right matters when you buy used, second hand or a replacement. Answer a few quick questions below and breakers will only quote if they have the exact matching part in stock:
- Specify front/rear and left/right
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Used window motor for other Mercedes-Benz models
Fitment questions
Will a window motor from a 2020 GLB fit my 2023 GLB?
The Mercedes-Benz GLB (X247) launched in 2019 and received a facelift around 2023, so a 2020 motor comes from the pre-facelift car and a 2023 motor may be from the facelifted version. The door shell and frame design can carry over a facelift, but whether the window motor and regulator assembly interchange exactly across that boundary is worth confirming with the breaker against your registration number before buying.
Does it matter which side the window motor comes from — nearside or offside?
Yes, this matters — window motors are specific to the side of the car they came from. When sourcing a used GLB window motor, always specify NS (nearside, passenger left) or OS (offside, driver right) to the breaker, as the two sides are not interchangeable.
Does the GLB actually have electric window motors — I want to make sure I'm looking for the right part?
Yes, all Mercedes-Benz GLB (X247) variants sold in the UK came with electric windows as standard, so a window motor is a genuine part on this model. If your window has dropped or stopped working, the motor or the regulator (the mechanism the motor drives) is the likely culprit, and it is worth telling the breaker which symptom you have so they can supply the correct component.
Does the GLB trim level — for example AMG Line versus Sport — affect which window motor I need?
Trim level does not affect window motor fitment on the GLB — the door frame and glass mechanism are the same regardless of whether the car is a Sport, AMG Line, or any other trim. The main fitment details that matter are the generation (X247), the door position (front or rear), and the side (NS or OS).
Will a rear window motor from a five-door GLB fit — are they all five-door?
The Mercedes-Benz GLB (X247) is a five-door model, so all UK GLBs share the same five-door body. Front and rear window motors are not the same part, so always confirm with the breaker whether you need a front or rear motor along with the side (NS or OS).
I've found a cheap GLB window motor but the seller doesn't know the exact year — is that a problem?
It can be, because the GLB facelift introduced around 2023 may have brought minor changes to components, and a motor from the wrong phase might not fit correctly. Give the breaker your registration number so they can check the exact specification of their donor car against yours before you commit to buying.