I have a 02 320 Wagon. I thought it had a problem like this untill I figured out that the seat will not move when you put the key in before you close the door. If you wait to put the key in after you close the door the seat moves, but if you leave the door open it will not move untill you start. Mine will also not move back if it is adjusted to far back, If so the wheel moves but not the seat when you go to get out. Seems dumb to me, I figure if it is not at the rear stop it should move.