E39 528I intermittant electrical issues
I just purchased a 2000 528I 74,000 miles. This is my first Bimmer and I'm hoping that some of you can give me some insight on the following:
After I start the vehicle, sometimes I the airbag indicator light is on. When this occurs, my horn and my radio does not work. The radio has no power. When I shut off the engine and re-start, the radio and the horn works and the air bag light is no longer on. The problem seems to correct itself after turning off the engine and re-starting.
Also, the BRAKE light comes on occasionally. The previous owner just changed the pads. Not sure why the brake light is coming on because everything associated with the brakes seem fine. A friend told me that it might possibly be the brake light switch??
Also, the transmission light intermittantly comes on. Today, it has not come on yet.
Everything else on the vehicle works properly. Outside of the above electrical quirks, there are no problems with the car.
Any ideas as to what might be causing the above problems?