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7 Series / 8 Series
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  #1  
Old 02-20-2010, 08:05 AM
mmihailov mmihailov is offline
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Location: Gaithersburg, MD
 
Join Date: Aug 2009
Posts: 59
Mein Auto: 02 530I and 01 740I
01 740i - Right window rolls up but won't roll down

The right window of my 2001 e38 stopped rolling down. I could hear a click from the motor but no movement. I decided that the regulator or the motor broke, because I have had similar problem with my 530I which I fixed a year ago and bought a used window regulator with the motor for $100 on ebay. I trust the guy from whom I bought it. His ebay link is featured on the www.e38.org website. I installed it last night on my car and pushed the button to close the window up. The window went up fine and closed - the regulator came with the window brackets positioned half way down the rail tracks. However,the window won't roll down again. I hear the same click in the motor that came from it before I replaced the whole thing. I wonder if the problem could be coming from the switch, but why do I hear a click?

Any ideas how to proceed further with troubleshooting this problem? Thank you.
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  #2  
Old 02-20-2010, 11:12 AM
mmihailov mmihailov is offline
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Location: Gaithersburg, MD
 
Join Date: Aug 2009
Posts: 59
Mein Auto: 02 530I and 01 740I
I got it working. I swapped switches and it works now. All windows work all right. I think the problem was a bad connection at the switch, but I might be wrong. Most likely I did not have to replace the window regulator though. I wish I thought about playing with the switches sooner.
  #3  
Old 02-20-2010, 11:53 AM
M.Wong's Avatar
M.Wong M.Wong is offline
E38 E91 (R56 E30 E39)
Location: Seattle WA
 
Join Date: Jan 2003
Posts: 2,323
Mein Auto: The E38
The regulators are common failures, you just did it proactively and can sit back and enjoy a working window for a while!!!

(I do my radiators every 60K miles for the same reason.)
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M.Wong
E38 2000 740iL Orient Blue
E91 2012 328xiT Alpine White

Passed on to new families:
E30 1987 325i Royal Blue
E39 2003 540i/6 Sterling Gray
R56 2010 Mini Cooper S British Racing Green


  #4  
Old 02-20-2010, 01:47 PM
mmihailov mmihailov is offline
Registered User
Location: Gaithersburg, MD
 
Join Date: Aug 2009
Posts: 59
Mein Auto: 02 530I and 01 740I
Right, that is my only consolation - that it would have broken down soon anyhow. I replaced my fuel pump for $230 a month ago thinking it was making a loud noise. It turned out that was not what made the noise. The noise was made by the pressure valve in the fuel tank for $16 only. Rather expensive way to learn but hopefully I get better with time.
 

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