Body - Humming Noise When Closing Power Window
SI B 51 03 10Body Equipment
January 2010
Technical Service
SUBJECT
Humming Noise from the Window Motor
MODEL
F07 (5 Series Gran Turismo) produced up to 10/4/09
SITUATION
When closing one or more of the windows, a humming noise can be heard through the upper 1/3 travel of the window.
CAUSE
Faulty power window regulator
CORRECTION
Inspect the window regulator and, if necessary, replace the affected window regulator with an updated part.
PROCEDURE
1. Lower the affected window fully and remove the outer belt molding by carefully levering it up off the outer door panel. This should be performed carefully, such that the molding is not distorted and the door is not scratched.
2. Inspect the upper part of the window regulator adjacent to the white pulley for an inspection paint dot.
^ If a white or green paint dot is present, the latest window regulator is installed. Perform further troubleshooting to identify the root cause of the noise.
^ If no paint dot is present, replace the affected window regulator per Repair Instruction REP 51 33 000 (Front) or REP 51 37 000 (Rear).
PARTS INFORMATION
WARRANTY INFORMATION