I have a 94 530i with 78,000 miles. My daughter was waiting for about 30 minutes with the car idling when the radio died and then the car died. After that, the car would not crank. From her description I thought maybe the alternator went out or serpentine belt broke and she had been running on battery power until it gave out. I had the car towed to my work so I could check it out. Belt was fine, all electrical was working but the car will not turn over. Used jumper cables to charge the battery from another car but still nothing. I thought that maybe the antitheft code got activated and went through the procedure to deactivate it by disconnecting the battery for 5 minutes and then waiting 15 minutes with the key in position 1. Still nothing.
Does anyone have any words of wisdom?
I've read something about an immobilizer relay??? Is this real? If so, where is it and how do you check it?
Thanks.