Hi, I own a 1994 325i, had it since new , 242,000 miles, the A/C heater control panel ( old model with temp contol knobs ), all panel switches, ie. A/C,Recirc, and rear window defrost are disabled including all led's on switches. By disconnecting battery negative cable for a minute and reconnecting the panel starts working. However this condition occours more frequently now.
Shall appreciate any advice, thanks -