991.2 Cabrio - Left Rear Window
Thread Starter
Instructor
Joined: Aug 2016
Posts: 235
Likes: 44
991.2 Cabrio - Left Rear Window
My 991.2 Cabrio just developed a weird problem.
Left side windows are working OK (going up and down) when I use the door switches but when closing the top, the left side windows wont come up automatically.
The read left windows starts going up but halfway through it stops and goes down again. This is avoiding also the front window to go up since the logic is that the rear window goes up first.
Anybody has faced a similar problem ? I tried reseting and teaching window position with no luck.
Left side windows are working OK (going up and down) when I use the door switches but when closing the top, the left side windows wont come up automatically.
The read left windows starts going up but halfway through it stops and goes down again. This is avoiding also the front window to go up since the logic is that the rear window goes up first.
Anybody has faced a similar problem ? I tried reseting and teaching window position with no luck.
Rennlist Member
Joined: Apr 2018
Posts: 522
Likes: 170
From: Miami, FL
Common problem with cabrio's. It's the beginning of the end for the window regulator. You can try the window switch program reset procedure and it may work for a while, but it will return. Under warranty at all? It's a close to $1k repair, less if done at an indy.
Rennlist Member
Joined: Apr 2002
Posts: 773
Likes: 354
From: Boston MA USA
Here is a thread on the subject. Can be the regulator or a pinch sensor issue.
Mine had intermittent problems last year, but seemed to 'fix itself' this year (fingers crossed on one hand and knocking on wood with the other)
https://rennlist.com/forums/991/1179...own-again.html
Mine had intermittent problems last year, but seemed to 'fix itself' this year (fingers crossed on one hand and knocking on wood with the other)
https://rennlist.com/forums/991/1179...own-again.html
Last edited by bb964; Oct 18, 2021 at 12:15 AM.
Rennlist Member
Joined: Sep 2021
Posts: 505
Likes: 304
Makes sense if the anti-pinch is the reason that its not working.
Anti-pinch looks at the current draw of the motor to determine if its struggling against someones arm or hand. So if the motor is struggling against dirty or dry guides or rubber it could be the cause.
Anti-pinch looks at the current draw of the motor to determine if its struggling against someones arm or hand. So if the motor is struggling against dirty or dry guides or rubber it could be the cause.
Thread Starter
Instructor
Joined: Aug 2016
Posts: 235
Likes: 44
UPDATE - Took the car to the dealer since I was still having problems with the rear left window and they confirmed that they will have to change the window motor under warranty. Dealer mentioned that even lubing all rubber should help, it is not normal for the window not to go up if the rubbers are a little bit dry.
By the way, any suggestions on the type of lube I should use for the top mechanism and rubbers ?
By the way, any suggestions on the type of lube I should use for the top mechanism and rubbers ?
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Rennlist Member
Joined: Jan 2021
Posts: 1,249
Likes: 587
From: Phoenix
Interesting thread as I have a cab as well. Regarding the conditioner and protectant, I use this stuff on my slide seals. Goes on as a foam. Maybe I’ll test it. Any thoughts?
Last edited by vanlieremead; Dec 28, 2021 at 10:04 AM.
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