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BMW Repair/328xi 2007 little motor sound on closing door

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Question
I buy a 2007 bmw 328 xi 4 doors and somethime there is a
sound of a little électric motor sound just after closing
a door like when i close the trunk... The dealer don't know
what it can be... I imagine it is to look whit a bar the door but it is not each time...

Answer
I am thinking that the windows must open slightly when the door is closed to prevent other issues happening as the vehicle has a tight seal inside.When you open the door do the door windows come down slightly?if so that maybe what you are hearing.I have a 325is here and the window does come down slightly then roll back up when the door closes.

BMW Repair

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Don Berlan

Expertise

ASE Master Mechanic for 25 years. Can help with all aspects of BMW repair. I especially enjoy driveablity problems, mechanical or electrical.

Experience

I have been an ASE Master Mechanic for 25 years.I have worked in many dealearships although BMW's are my favorite.I now have my own shop,specializing in BMW's.I have autocrossed and even gotten into mud running with my 4x4.(I am NOT a teacher and don't claim to know everything about the cars I never see.I hope to help you with your repairs and do expect some knowledge on your side.)

Education/Credentials
CMVTI, Auburn Maine

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