My wife was driving my 98 328 last night. When she came home she said a alarm was going off. When you open the drivers side door a loud alarm sounds until you close the door and start the engine. My car has very low miles (70,000) and has never had an issue. All of the obvious devices are turned off. I have tried all of the lights and the car alarms system. All doors are closed and the truck is shut. I am really scratching my head for answers. Does anyone have any ideas for me. The manual is not helping me out much.