i have a 2002 bmw 330cic convertible! the top won't go down! i just bought it at an auction. the right rear window will not go down. the airbag light is on. i'm wondering if the airbag light being on or the window not going down is tripping some computer into not letting the top move! any help would be greatly appreciated!!! i have replaced a couple of regulators on my 2001 325xi before. i'm thinking the motor might be bad or maybe the switch!