A creak or squeak can be heard from the top of the front or rear doors. This noise is most noticeable when the windows are fully up. The noise is caused by the decay of the flocking material on the door seals. New door seals, Teflon tape, special lube, or a combination of all of these may be needed to eliminate the noise.
Car Problem Reports
BMW 330xi Noise From Top of Front/Rear Doors When Windows Are Fully Up
BMW 330xi Problem
Average Mileage: 142,500 mi (70,000 mi - 215,000 mi)
Visitor, 2002 BMW 330xi, 215,000 mi
Weird squeaky noise that sounds a lot like cracking glass from somewhere, I assume it's the window seals in the
front of car but can't pinpoint origin. I just live with it and the hundred other problems my little German machine throws at me
Visitor, 2005 BMW 330xi, 70,000 mi
High pitched squealing noise from front right of vehicle. Seals were coming apart and had to be replaced.