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      07-14-2023, 04:45 PM   #16
Opie55
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Drives: '15 650i Convertible
Join Date: Apr 2018
Location: US

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Quote:
Originally Posted by BrandChemist View Post
I have the same issue. But I have a weird symptom that may lend a clue as to whats really wrong. My windows work perfectly fine WHEN THE CAR IS MOVING. Its only when I am stopped do the driver and passenger windows go bananas with a mind of their own. I also have to go up in 2 inch increments in order to get them all the way up.
I thought I was a genius when I considered the alternator may be why the windows work when the car is moving, so it MUST be a battery problem. Checked the battery, and sure enough, it was only producing half power. I MUST be right! Right? $300 later with a new battery and the windows are still wonkadoo. /facepalm

The stealership says I need 2 new window motors, but why would the motors be broken if they work perfectly fine while driving?
When you say "stopped" do you mean engine still running, like at a red light, or do you mean engine off?
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