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sprinkles08, ASE Certified Technician
Category: Mercedes
Satisfied Customers: 23118
Experience:  ASE Master and Advanced level certified. Factory trained with 17 years dealership experience
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Driver's side window is not working, regulator is working

Customer Question

Driver's side window is not working
JA: What is the model/year of your Mercedes?
Customer: regulator is working good ,,,2007 s550
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: With a friend we . Ck the regulator the Window. Goes up and down . But the switch byt the door . Don't move the window,,
JA: Anything else you think the mechanic should know?
Customer: That's all for now
Submitted: 1 year ago.
Category: Mercedes
Expert:  sprinkles08 replied 1 year ago.

Hello and welcome to JustAnswer!

It sounds as if you are unable to open and close the window from the switch, but if you apply power and ground to the window motor directly then it will move. Is that correct? If so then the most likely cause would be the switch itself.

Have you tested power and ground at the motor when pressing the switch?