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      05-29-2012, 10:48 AM   #6
Lieutenant Colonel

Drives: AW 07 e92 335i + AW 11 X5 35d
Join Date: Jun 2007
Location: Atlanta GA

iTrader: (13)

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2007 E92 335i  [0.00]
As far as possibilities of issues...

Could be the switch panel (can be ruled out if the remote fob doesn't work).

Could be the window regulator motor itself (dirty motor brushes). -assuming only one window doesn't work...

And then there's the umbrella issue of having a flaky connection in a wiring harness or solder joint in related circuits.

Do you not know anyone else with a similar car? It's easy enough to pop the switch panel off and try. Or ebay a used one.