Driver's window re-opening by itself after closing - FIXED

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Driver's window re-opening by itself after closing - FIXED

Postby DubSteve68 » Sat Sep 12, 2020 12:54 pm

So,

One day last week I got to my car after a day at work only to find the driver's window was halfway down. I drove to work with the windows up, and I have to hold the lock button on the fob to activate mirror folding which I definitely did. After a day at work I was pretty knackered and didn't think too much on it, was just grateful it was a dry day and I didn't have a mobile swimming pool to drive home in. Window wound up fine and stayed there.

Dropped my car off this morning for its service, no problems, but when I came to collect it the window was at halfway again. Again I didn't think too much about it as I presumed the mechanic may have put it down for whatever reason. Went to wind the window up and lo and behold, it would not stay up, dropping back to halfway as soon as it hit TDC. It would do this EVERY time I tried to close it.

First up I tried resetting the window motor, no problem at the bottom but it was simply not possible to hold it for the required five seconds at the top as it would come down immediately. VCDS showed no door controller faults.

Having spent ten minutes online looking at similar problems I thought I'd try the one thing that sorted my "wonky" BCM (definitely not working properly but no fault codes produced) when I was experimenting with LEDs earlier in the year - disconnecting the battery for five minutes.

Boom. Correct function restored and the window now stays up when it hits the top :)

Moral of the story? Don't overlook the simple fixes that can apply equally to any piece of technology like a computer or a smartphone before going down the rabbit hole of diagnosing electrical/electromechanical faults.
Genuine VCDS and VCP System available in North West - Burnley/Pendle/Ribble Valley/Craven areas. PM me if in need.
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Re: Driver's window re-opening by itself after closing - FIX

Postby edwheels » Wed Oct 28, 2020 7:01 pm

That's interesting.

Ever since I have owned my Scirocco, since 2016, had similar issues with the windows. Occasionally come back to the car and windows are half down, once they were both completely down (and it was raining - that was fun). Also, frequently, especially in wet weather, the windows will not go up all the way - they stop and go down again (which is what they are supposed to do if the find an obstruction)... eventually you can make them go all the way up.

Anyway, dealer tried to fix it - replaced window motors (under warranty).

Finally I also tried what you suggested - unplugged the battery for a while. Since then they have behaved fine apart from 1 time the driver's window did it's little 'obstruction' trick - but I'll let that go - it's only once in months - it used to do it almost all the time.

Fingers crossed!
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Re: Driver's window re-opening by itself after closing - FIX

Postby char » Sat Oct 31, 2020 11:12 am

I had similar, I just wound both windows down all the way at the same time and held the down buttons a few secs afterwards and then both up all the way. This resets it I believe and I've not had any trouble since (touchwood)
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