1991 BMW 320 Window only goes down & not up

Tiny
DUC
  • MEMBER
  • 1991 BMW 320
Electrical problem
1991 BMW 320 Automatic 230000 miles

Hi, im having some issues with one of the windows not being able to shut. I can manage to put them down but seeing as though they cant be put back up I have to cover it every night for the last 2 nights. I've had the problem once in the past, but I was able to shut it after a few hours. Is the fuse playing up? I just need your help! WHat do you think the problem is?
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Sunday, April 27th, 2008 AT 2:36 AM

4 Replies

Tiny
LEGITIMATE007
  • EXPERT
Well I would start with the fuse and then the switch. Because the only thing that makes a motor go back and forth or up and down is reversing the polarity. So when you hit the switch down. Then that would be negative polarity and up would be positive polarity so with that being said the "up" part of the switch is probably bad. Understand? So yes, check fuse then switch then motor, the motor has the same concept except the problem may be in the switch not the motor and vice versa. I hope I didn't confuse you. Get back if you need clarification
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Sunday, April 27th, 2008 AT 4:54 AM
Tiny
DUC
  • MEMBER
Thanks for the quick reply, all is good I managed to shut the window. I tried different variations of how I was to press the button and I found that once I presed it down, I had to give it an extra 'angled' push.

So I think was the switch which was playing up, but I still cant help but think the issue revolves around the regulator. And now im not sure what I should do about the problem. Is should probably take it out to the mechanics and have it looked at.

Cheers for the advise
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Sunday, April 27th, 2008 AT 5:26 AM
Tiny
DR. HAGERTY
  • MEMBER
Swap the switches for the rear windows in there, or replace the switch
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Sunday, April 27th, 2008 AT 7:25 AM
Tiny
LEGITIMATE007
  • EXPERT
Awesome, your welcome
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Sunday, April 27th, 2008 AT 7:57 AM

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