How do you change the door lock on a 1999 vw jetta When I turn the key nothing happens. Remove the inside door panel. Remove the door lock linkage. Remove  the door lock barrel retaining ring.Reverse the process to install  the new door lock.Edit.n the 2000 you get in the car and have all the doors unlocked. Put the key in the ignition and turn the car to the on position then back to the off position 4 times. Then de â¦ press the lock button on the drivers side. You should hear a chime indicating that the command was accepted. Answered.