42 problems related to electrical system have been reported for the 2008 BMW 335. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 BMW 335 based on all problems reported for the 2008 335.
The doors will not unlock. The lights flash on the outside but even when pushing the unlock button from the inside of the car the doors stay locked. I'm being told it is a fuse, but literally none of the doors will lock or unlock. The only way I was able to exit my car was by crawling out of my window.
Door locks wouldn't open or close. Inside unlock capabilities not working either. Only access in or out is through the keyed entry. Cannot even open the other three doors.
Sudden failure of windshield washer pump. Occurred while I was driving at highway speed and washer was under constant use due to heavy rain and road conditions.
The door lock actuators failed on my car, this caused the remote fob and also inner central locking button to stop working, the only way to get out of the car was to roll down the drivers window and take the key fob apart to reveal the metal key inside, this could then be used from the outside to open the door by putting your arm out the window however all other doors remain locked from inside or outside, the other doors do not have a keyhole and the inner door handles were disconnected and would not work. My passengers then had to crawl over the front seats to escape the car thru the drivers door and in an accident or fire they would have been stuck. I think this is extremely dangerous and from searching online I see it is a common problem on this model.
Side mirrors move up and down even when not set to adjust when going into reverse. Mirrors are adjusted prior to driving, yet at times move the highest or lowest position resulting in mirrors pointed to sky, or road pavement. This has occurred repeatedly. In addition to the problem with the mirrors, passenger and/or driver side power windows roll down after being rolled up. Several trips to dealership made in which computer was "reset" with no resolution to problem. Mirror issue nearly caused accident when trying to avoid an obstacle while driving on highway.
Engine malfunction. Loss of power.
Three fuel pump failures, BMW factory rep looked at car at BMW cleveland, in solon, ohio. One week later car caught on fire while sitting in parking lot at work.