Door Lock Cylinder: Service and Repair

51 21 140 - Removing and installing/replacing complete lock cylinder in left or right front door





Necessary preliminary tasks:
- Remove outside handle on front door 51 21 170 Removing and Installing or Replacing Outside Door Handle From Left or Right Front Door





Release screws (1).
Remove gearing cover (2).





Detach retaining clip (1).
Remove lock cylinder (2).