The front passenger door button goes up with all the others but when you try and open the door it drops a little and you can not open the door, if you use the key it will open, but if you open and close it 2/3 times the same thing happens, I have sprayed all moving parts with oil, but it has not made any difference with or without the door card on, I have also tried moving the actuator unit backwards and forwards a little on the bracket, any help will be greatly appreciated as I have run out of ideas.
I have a 1993 RR TDI