This may be a stupid question, but this is my first BMW and I dont have the owner's manual. I've got a 1990 325i, 4-door. I can't seem to lock my doors without using the key. When all the doors are shut I can press down the door lock button and they lock. When I open the driver's side door and attempt to press down the lock, it doesnt budge. So I have to shut the door and use the key. Is this just how this model is, or am I missing something? Thanks for your help.