Hello, my f20 ED is 3 weeks old now with 3.000 km in the odometer. Everything was fine untill 2 days ago when suddenly i heard rattles from all the 4 doors. The strange thing is that with the windows down (even a little bit) those strange noises aytomatically stops. Any ideas? I will definetely go to my bmw dealer to check it (and hope fix it). It is really frustrating for a brand new car of this value and with so few kilometres to have this kind of problem
