I recently purchased a 1982 528e, and the power door locks seemed to work okay at first. Now, however, whenever you lock the trunk or driver's side door, all of the door locks engage (which they should), but then immediately disengage. This is maddening, because I can't lock my car!
I'm suspecting the driver's door mechanism, since while it seemed to work at first, I do believe that it didn't always lock all the doors when I pushed down the driver's door lock. Now it does lock them all, but then they immediately unlock. I've also seen that there is a central locking computer, and a vacuum system involved.
I was wondering if anyone has had a similar problem, and could point me in the right direction before I go blindly taking things apart
Thanks,
Scott