2003 BMW 330I Electrical system Problems

“All passenger doors except driver door cannot be unlocked or opened using any method--the key or any unlock button, or using either inside or outside door handles. This leaves only the front driver door openable. This is a huge safety risk. I can't drive the car this way--I would not be able to get my kids out of the back seat. It happens whether the car is running or not, and moving or not.”

“Please note that this incident happened prior to the date and mileage noted above as the previous owner had to also deal with this problem. I report the dates as when I received the car when it came into my ownership only. Driver's door lock failed to electronically and mechanically unlocked from the inside. The door can only be opened from the outside with a key. This poses a potentially grave safety concern as no one can open the door from inside - essentially passengers may become locked-in. …”

“Central locking mechanism is going crazy. If I were in a crash, the car is supposed to unlock the doors, turn on the flashers, etc. This will not happen with the central locking mechanism working intermittently. If I am injured in an accident it may be more difficult for paramedics to get to me. I was actually locked in my car today when I arrived at school. I had to crawl out the window and thankfully I was able to roll up the window with the key in the door. I have read that this may stop working as well. …”

“The passenger doors fail to open with the internal door unlock button. This is due to failure of door unlock relays in the gm5 module. This could result in a significant safety issue if a failure of the unlock relay happens when attempting to unlock passenger doors in an emergency to retrieve passengers.”

“Erratic engine idle and stall.at idle engine rpms will drop causing a stall/stutter. This happens frequently and in all types of weather conditions. This effects all 330I zhp (performance pkg) model.”