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  #1  
Old 04-15-2002, 01:36 PM
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Join Date: Oct 2001
Location: Lake City Fl
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Unhappy power window regulator--Test motor?

Right rear window quit working, I could get it to move up a little but not down. Took the panel off and found what looks to me to be a warped up window regulator mechanisam--unscrewed the motor and by using the switch (used a known good one) the motor would turn when I pushed up, but would not work when switch is in down position. I can't understand why it works one way and not the other.
I am ordering new regulator. does this mean I need a window motor also?
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  #2  
Old 04-15-2002, 01:41 PM
Matt Crooke
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Try spraying the motor and associated bits with WD40, also have you made sure that its not the switch thats worn out?
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  #3  
Old 04-15-2002, 01:48 PM
J.HIDALGO's Avatar
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Does it work with the console switch?

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J.H.
'86 300E
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  #4  
Old 04-15-2002, 02:02 PM
Matt Crooke
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The WD40?
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  #5  
Old 04-15-2002, 02:05 PM
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Location: Lake City Fl
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power window

Door switch was working on other side, pulled it to test right side window. Motor is free as a bird, goes when switch is in up position but not in down position.
Console switch will not move window up or down. Can this affect the door switch?
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  #6  
Old 04-15-2002, 02:07 PM
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What kind of car? Some of the MBs have the regulator and motor made together.
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  #7  
Old 04-15-2002, 02:12 PM
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Location: Lake City Fl
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power window

1982 diesel
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  #8  
Old 04-15-2002, 02:27 PM
Chris17H
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u know iv noticed if a window were to go out on a Mercedes it's always the rear right one...mines also out...strange isn't it

Oh well, i don't sit it the back
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  #9  
Old 04-15-2002, 02:28 PM
Steve019
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With the door panel off, locate the terminal block that the motor wires go to. Disconnect the wires and use a battery charger to checck the motor. just reverse polarity for up and down. If you r window doesn't move in one direction, listen for the motor noise. I hope this will help isolate the problem. On my model the console switch will not operate if the door switch is bad or not installed.
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  #10  
Old 04-15-2002, 02:48 PM
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Location: Lake City Fl
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BINGO!!! Now I am really confused, I hooked up the battery charger and window motor works perfectly! I was using a 12 volt battery before. Why will a charger work and not battery?
Does this mean that the console switch is not letting the door switch activate in the down position?
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  #11  
Old 04-15-2002, 08:54 PM
Steve019
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You probably have a half bad switch or possibly a broken wire, most likely in the door hinge area. Try cleaning the switches with some electrical contact cleaner. I know the console will not operate the windows if the door switch is bad. Also clean and re-seat connectors.
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