I have a 2003 325ti Sport Compact. I am just back from a weeks holiday and went to start my car and the battery was flat. I managed to jump start it but now I'm having major electrical issues. When I turn on the lights the lights go on but the dash does not light up. The indicators are working but the repeaters on the inside dash do not work. My iPod connection no longer works and there is s swoosh swoosh noise when I start the ignition. The doors do not automatically lock when I start driving and seem to lock at random times. Occasionally the lights on the dash come on again and the indicators work but then they just seem to go off again at random times. I have tried disconnecting the battery and connecting it again but this does not seem to help. Everything was working fine before I went on holiday and the battery seems to be charging itself fine now!
Any help would be very welcome.