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 carrier







Disengage Bowden cable (1) from locking lever (2) and guide (3).

Installation:
Make sure Bowden cable (1) is correctly routed.







Release plug connection (1) and linkage (2) from door lock.







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







Passenger side:
Feed out door lock (1).
Driver's side:
Feed out door lock (1) in area (A) from lock cylinder (2) and remove.

Installation:
Paddle (3) must be correctly inserted in door lock (1).







Installation:
Make sure door lock is in the correct position when installing the paddle.

Notch (1) must be located at the marking (2).

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







Replacement:
Release screw (1) and remove door lock lever (2).
Tightening torque 51 21 5AZ.
Remove cable guide (3).







Open cover (1).
Remove Bowden cable on holders (2 and 3) from door lock.