After two weeks in my 323i I just installed both front splash-guards and the Outside Air Thermometer. Had a beautiful drive (The BMW really drives like a dream). Heard windnoise from the right front window. Crank it up and hear a crackling noise. Coming home I try the window. It goes down a bit but will not go up again. I pull it up with the flat of my hands. At least that worked!! Do not know yet if it will stay up. But have to remove the side panel and see what is going on. Look in my Chilton book. Biggest problem maybe the airbag. Any suggestions are welcome.