juergen_lorenz7
Mercedes GLA Power Window Failure
Summary of the thread
A 2020 Mercedes GLA experienced power window failure with an error stored in the car's computer. The issue was suspected to be related to the window mechanism or control unit. After consulting with a mechanic, it was determined that the problem was a defective power window switch, which was replaced, resolving the issue.
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4 comment(s)
juergen_lorenz7 (community.author)
Thanks for the quick reply I haven't checked the switch itself How would I do that I'm not really a car person, so I don't want to mess anything up I can't hear anything when I press the switch, no window motor sound at all I'm not sure about the exact error code now, but is it difficult to access the window regulator or window track myself
sinabrown1
Given your lack of technical expertise and the absence of any motor sound, I would advise against attempting to disassemble the door panel and access the window mechanism yourself You risk damaging the interior trim or further complicating the issue Since you mentioned an error code is stored, it is best to take it to a qualified mechanic The error code should give them a good idea where to start looking Based on your description, a faulty power window switch seems probable but the exact cause, whether it be the switch, the window motor, or the window regulator, needs proper diagnosis
juergen_lorenz7 (community.author)
Thanks so much for your help I took it to a workshop, and they said it was a defective power window switch They replaced it for 200€, and now the windows are working perfectly again I really appreciate you pointing me in the right direction At least it wasn't the window motor or the window track I am so happy
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MERCEDES
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GLA
sinabrown1
I understand you are experiencing issues with your Mercedes GLA's power windows Your description and the stored error code suggest a problem within the window regulator system Have you checked the power window switch itself for any signs of damage or malfunction A defective switch can often prevent the window motor from receiving power, even if the window regulator and window track are otherwise in good condition Do you know which error code is stored in the memory Can you hear the window motor when you press the switch