1999 BMW 323

Electrical problem
1999 BMW 323 20000k miles

why do my windows open and sun roof open auto sometime on there own?
December 1, 2007.

There can be many reasons for the issues you state. The systems at fault can be scanned for fault codes by a knowledgeable BMW technician with the correct equipment. When does this happen? Does it occur by itself or when you are driving the car?

Dr. Hagerty
Dec 1, 2007.