I have a 2001 330xi and on the drive home, the cabin fans weren't on for a few minutes. They eventually kicked in and I couldn't replicate the problem. I had the temperature set to 70 degrees auto, auto air control, and AC enabled. Now, it was roughly the same temperature outside but I can't imagine the fans would just turn off like that. I'd like to check to make sure the power cable is securely connected to the blower motor but I don't know where that is located on the car. Could anyone help me out or otherwise tell me if I'm off the mark?