Front Door Latch: Service and Repair

51 21 090 - Removing and installing/replacing door lock in left or right front door





Necessary preliminary tasks:
- Remove door trim panel Removing and Installing Front Left or Right Door Trim Panel
- Release rear guide rail Service and Repair of power window
- Release cable Removing and Installing/Replacing Inside Handle on Left or Right Front Door on inside door handle
Driver's side only:
- Remove outside door handle Service and Repair





Passenger side only:
Pull door handle cable (1) downwards to disconnect cable from door locking lever (2).
Disconnect door handle cable (1).

Installation:
Make sure cable is correctly routed.





Release Bowden cable from clips (1 and 2).
Remove grommet (3) of Bowden cable from inner door panel.
Feed Bowden cable back through opening.





Driver's side only:
Remove rubber plug (1) and screw (2).
Tightening torque 51 21 3AZ 51 21 Front Door Locks.





Detach plug connector (1) from door lock.
Remove linkage (2) from door lock.





Release screws (1).
Tightening torque 51 21 4AZ 51 21 Front Door Locks.





Driver's side only:
Release lock cylinder (1) on outer side of door.
Remove door lock and lock cylinder (1) from door.

Installation:
Make sure lock cylinder is correctly connected to door lock.

Passenger side only:

Remove door lock.

Installation:
Before being installed in the door, the guide of the door lock cable must be correctly positioned.





Replacement:
Remove screw (1) and then door lock lever (2).
Tightening torque 51 21 5AZ 51 21 Front Door Locks.
Remove cable guide (3).





Remove cover (1).
Remove outer Bowden cable (2) from door lock.
Remove inner Bowden cable (3) from door lock.