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Old 01-02-2012, 02:46 PM
ah-kay ah-kay is online now
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Join Date: Mar 2009
Location: San Diego
Posts: 3,591
It is easy to fix window problem. The fuse is good since window moves. You have the door panel out already then this is what I will do.

1) Check driver side switch and passenger switch. If one is good and other is bad then it is most likely a bad switch. If both do not work then ...

2) Put 12v to motor leads ( only 2 ) and the window should do up or down. Reverse the polarity then the window should go the other direction. This will confirm the motor and the mechanic is OK.

3) Replace the switch with a known good one, either new or from the other side and see whether it works.

4) If all the switches are known good ones then it could be wiring. You need to check for continuity with a meter.

It could be switch, broken wires due to wire fatigue, motor, broken gear etc. It is not rocket science.
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Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed.

W124 Keyless remote, PM for details. http://www.peachparts.com/shopforum/mercedes-used-parts-sale-wanted/334620-fs-w124-chasis-keyless-remote-%2450-shipped.html

1 X 2006 CDI
1 x 87 300SDL
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1 x 87 300TDT wagon
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1 x 84 190D ( 5 sp ) - All R134 converted + keyless entry.
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