51 21 140 Removing And Installing/Replacing Complete Lock Cylinder

Remove plate (1).

Installation: 

1. Fit new plate (1).

Release screw (1).

Removing cover (1) on outside handle:

1. Pull cover (1) approx. 1... 2 mm towards rear.
2. Detach cover (1) with lock barrel (2) towards outside.

Remove catches (1) and detach cover (2) from lock cylinder (3).

Installation: 

1. Catches (1) on cover (2) must not be damaged.

3 Lock cylinder

Installation: 

1. Notch (2) on paddle support (1) must be secured in catch (3).
   Fig 6: Identifying Notch On Paddle Support

   Courtesy of BMW OF NORTH AMERICA, INC.
2. Only in this position will installation of the lock barrel be guaranteed.