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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > UK > UK Technical Forum > Anti trap window sensor ?



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      03-23-2014, 05:43 AM   #1
Batts335d
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Anti trap window sensor ?

I keep getting the anti window trap light come on every few months and stopping the window completey I can over come this by unplugging the battery for a bit then the window works again , I'm guessing the sensor is starting to go up it's own arse and any one confirm this or a part number ?
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      03-23-2014, 06:24 AM   #2
Dan-danGT
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Is the sensor built into the motor? Does the door control unit not sensor too much draw and stop the window going up?
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      03-23-2014, 07:34 AM   #3
Digitalize
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I think it measures the amount of draw the motor is using, or the rate at which it raises. I'd be considering something making it slower, a blockage etc.
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      03-23-2014, 09:23 AM   #4
E91-Gaz
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As above probably measures current draw therefore windows are a bit stiff in the runners.

Try spraying some lubricant in the runners

http://www.halfords.com/webapp/wcs/s...egoryId_165705

HTH
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      03-23-2014, 09:50 AM   #5
Batts335d
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Nothing blocking the window and the motor was fine , I have had the window motor apart before and nothing was out of place , I have unplugged the battery for a few hours and hasn't fixed it this time
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      03-24-2014, 09:51 AM   #6
335DEE
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think you have to do the window reset procedure , can't remember what the full procedure is , but it's something like wind window down, when at bottom hold down button for a few seconds , then wind up and hold button up for a few seconds after it's up. Then down and up .
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