My 2007 750li never had any functional issue until I brought it to a BMW trained mechanic to check out the airbag light. He replaced the battery, lights went away but the car stalled right on the way home from the shop! As I was turning(and slowing down), it shifted into Neutral, locked the wheel and gas pedal. I restarted and it was ok, until I slowed down at red light. So every time RPM drops, it shifts to N. I am afraid to take it on the highway now. I replaced the Integrated Module as other forums recommended but it did not solve the issue. Anyone else had this issue? I do not notice any transmission leaks or smell or any weird noises. No other warning signs are present. I am dreading an expensive chain of "fixes"....