The hex head bolt that connects the main wiring harness to terminal #30 may not have been tightened to the proper torque.
Electrical system
BMW 320IA Electrical problems by year
0 complaints filed with NHTSA about the BMW 320IA's electrical system. Dead batteries, warning lights, wiring, alternators, infotainment and electronic module failures.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data