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.Google+
Car Problem Reports
BMW 528i Noise From Top of Front/Rear Doors When Windows Are Fully Up
BMW 528i Problem
Average Mileage: 100,000 mi (33,000 mi - 137,000 mi)
Visitor, 2010 BMW 528i, 33,000 mi
Bought the car a few months ago (CPO). The dealer attempted to fix it but not resolved. Yesterday, another dealer attempted to fix this problem (cleaning seals and applying teflon tape) but already noticed creaking noise again (not as bad). Will bring it back until resolved. I had the same problem with a 07 530i and it was fixed, so I'm hopeful.
Visitor, 1998 BMW 528i, 130,000 mi
Light creaking sound from front windows when rolled up.
Visitor, 2010 BMW 528i
Creak in the driver's door when driving a low speeds, especially going over bumps, turning, or starting from a stop.