This is my first post and i'm hoping someone has experience with dodgy windows.
I have a 2005 330 convertable, my windows have stated to bounce back down when they get to the half way level. I've taken it into BMW 4 times now and the results have been the same on every occaision !!
They're saying they can see somthings wrong (so could a blind man) but the computer is showing that all components, motors, switches and sensors are all fine. So my warranty won't pay to investigate.
Funnily enough for two weeks after leaving the BMW dealership the windows work fine, then revert back to the bouncing.
I would be grateful if anyone can help.