Problem with door pin
 

Hi all! I need help here. Recently my left front (pssaenger side) door pin did not work well. Most of time it goes up and dowm slower than the other 3s, sometimes it does not go up when I unlock my X with key or press lock/unlock button in center console (so the door cannot be opened from outside), and sometimes it does not go down when I press lock button in center console or self lock (so the door is still unlocked). Up to now, I can still lock my X with key, but I can clearly see the pin goes down slowly. However I can open the door from inside without problem and the door pin can go down by pressing it with hand or go up by pull inside handle (I can feel the pin is stuck by something). Any solution? Thanks!

Door lock actuator! I had the same problem with 2 of my doors, i changed both actuators and it solved the problem :)