BMW 330 owners have reported 191 electrical system related problems since 1996. Table 1 shows the 11 most common electrical system problems. The number one most common problem is related to the vehicle's electrical system (152 problems). The second most common problem is related to the vehicle's wiring (16 problems). For details of each of the problem category, use the links in the table.
Several months ago, my digital cluster on my 2020 330i blacked out briefly and came back on. The other day, after temporarily disconnecting the batter and correctly reconnecting, the digital cluster and driver assist items all failed. Read details...
Passenger side headlight assembly wires break and cause the headlight to stop emitting light or otherwise working. Repeated attempts to repair the wiring harness eventually fail. This occurs with mere normal use of the car and passage of time. Read details...
The contact owns a 2020 BMW 330i. The contact stated that while he was sleeping, the vehicle was parked outside of the garage and had started itself without the key in the ignition then drove itself and crashed into the garage door. Read details...
Vehicle window regulators had to be replaced for passenger and drivers windows (regulators were cheap). Driver side door lock failed. Passenger door locks failing. Passenger headlight fell out. Rear brake lights need constant repair. Read details...
I have owned this vehicle for a while. I was stationary while I discovered the following. Door locks did not work consistently with the key fob, convertible top also, windows sometimes worked, wipers also. I read forums to realize the general module failed relays is a known problem. Read details...