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  #1  
Old 08-06-2004, 01:07 AM
hotskillet
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front passenger's window will no longer roll up or down

The window (on my '84 300sd) previously functioned just fine and now does absolutely nothing. There are no motor or mechanical sounds nor are ther any burnt fuses. I've checked the connection to the switch and can't seem to find any problems. What's the usuall suspect?

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  #2  
Old 08-06-2004, 02:14 AM
300SDog's Avatar
gimme a low-tech 240D
 
Join Date: Jan 2003
Location: central ky
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Switch itself is first place to start. Did you try swapping switches with rear window switch?

Otherwise, you might as well pull the door panel and poke around. It could be a simple connection or the window motor regulator itself.
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  #3  
Old 08-06-2004, 09:02 AM
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The first thing to check is whether the driver's rear window works.

If it works fine, then the switch is indeed the most likely culprit.

If it does not work, then replace the fuse, whether it looks good or not.

If the exchange of switches does not work, then you are going to have to pull the door panel and apply 12V and a ground directly to the motor leads to see if you can get the window to operate.
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  #4  
Old 08-06-2004, 04:43 PM
Brandon314159
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If it turns out that your motor will not operate....you can probably still pull it apart, apply what it needs (new brushes most likely) and have a working motor again. My w126 window motors have the same size brushes as briggs and stratton electric starter brushes...keep this in mind
You just have to file down the length until everything fits right
Best of luck to you...those things are tricky at times.
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Old 08-06-2004, 08:58 PM
hotskillet
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thanks

Again for the good advice.
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  #6  
Old 08-09-2004, 09:35 AM
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Join Date: Feb 2004
Location: Northern California
Posts: 163
temperature dependant

I don't know if anyone else had this problem but my passenger window stops working when the temperature drops below~50 deg. Luckily im not too intersted in rolling it down then. However if I left it down the night before im in for a chilly commute.

I will dig into it when it quits altogether.

Stephen
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  #7  
Old 08-09-2004, 12:23 PM
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Dieseldiehard
 
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Location: Bay Area No Calif.
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Another possibility with a temperature sensitive window is likely to be the wires in the rubber tube that is located at the door jamb. One cold day, try opening the door and bending the joint to see if it starts working, if so a wire (or two) needs to be cut and spliced where it has fatigued inside the insulation.
DDH
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Old 08-09-2004, 02:11 PM
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Location: Sacramento-Bay Area Corridor
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If you have a window thats stuck down, and wont roll up, heres a tip for a quick fix when u dont have time to pull everything apart.

Not sure if it works on all MBZ's, but on my w123 it did. Have someone hold the window button on the console for the window that has failed to operate in the up position, then have someone else open the door with the failed window, and slam it shut. The window should roll right up. Then you can wait till u have some time on your hands to pull the thing apart and fix it.

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