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      10-20-2021, 02:35 PM   #2
DaveS86
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Drives: BMW 640I
Join Date: Nov 2019
Location: UK

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So there is a window reset procedure you can do to calibrate the windows again, you'll have to have a search as I can't remember what it is, might be worth a try.

Unfortunately in convertibles there are loads of microswitches, any of which will stop the function of the roof if they are misbehaving. I'd try the window reset first and go from there, not much help I know.

Here's a video of the window reset: https://m.youtube.com/watch?v=uRpmosAu-qw

Failing that, if it was me I would disconnect the battery for 20 minutes and try again. After that I would get a dealer to diagnose the window regulator itself, which may have died. Dealer or decent garage.
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