I can't find a similar thread, so hopefully somebody can help me with this. My drivers door on my '03z4 won't open some of the time. It unlocks and locks just fine with the key and the remote, but sometimes when you pull on the handle (inside or outside) the door just won't open. The handle pulls smoothly and feels like it's working right, but the door won't unlatch and pop open. Sometimes you get lucky and after the 5th or 15th try the door suddenly opens. Sometimes it opens on the first try. Sometimes you have to climb in through the window and you feel really stupid because you are in front of a whole bunch of people at a wedding!
I've taken the panel off and the interior cable seems to work fine. I didn't pull the black foam insulation off because the linkage seemed to be working fine. I've tried pushing and pulling on the door and I've tried lubricating it.
Any ideas???
Thanks in advance.
Doug