BMW has a bulletin on this issue on their TIS software. For some reason,. some radios, after being unplugged and then replugged loose their code, and i mean they sort of loose the programming that tells them waht code you have to punch to make it work..
this was a production defect..
IS the radio is alredy worn out, light burned and all. just get another at ebay/
My radio always work great, until it started to shut itself up druing operation, and i would have to take the fuses out. then it would come back and the off,
i replaced what seemed a blown capacitor insede the radio, no luck, the thing was gone. so dont freak out/
it happens, and so you have to go looking for another.
You are a BMW driver when you become part of the "Ultimate Driving Machine"
Fraude an Fahren
BMW > Bayerische Motorenwerke
Auf Viedersehen der herr www.clemsonfsae.com