It's been bugging me ever since I have owned the car and at times I think I have sorted it, but unfortunately not.
When you lower the roof occasionally neither rear side window come back up, or just one does, and the same when you raise the roof.
If you lower all the side windows and raise them holding the respective button in for 5 seconds after they have stopped moving it seems to be fine for a little while, but eventually it will play up again.
What can I do about it? It's so annoying, has anyone else had a similar problem and if so do you live with it or how did you get it fixed?
Sometimes they come loose with the vibration causing bad connections and intermittent faults.
Really you need to run a proper diagnostic on it using the bmw dis this will narrow it down properly or you may find you just case your self round.
If you can get a Bentley manual from Amazon there will worth the money but get the one with diagnostic section
If you have the lead and the dis and have loaded it all up and can get it to connect you basically want from page 35/36 onwards. Select your model and the.n follow the steps.
Once you get to page 41 look for a x next to the title for the convertable then you can click on the green arrow and follow the task and test.
You can't do any harm with the dis if in doubt quit is a very good tool, the only thing I would say is if you have an x run a quick delete to clear the faults as they may be an old stored fault and you my start to chase a problem that is not there if you follow.
The more you use it the more you will get used to it, you can then go in to component activations an do tests.
Will try to dig out some stuff for you you tube os a good source of info
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