51 21 140 Removing And Installing/Replacing Complete Lock Cylinder

Remove plate (1).

Fig 1: Removing Plate

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Installation: 

1. Fit new plate (1).

Release screw (1).

Fig 2: Releasing Screw

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Removing cover (1) on outside handle:

Fig 3: Removing Cover On Outside Handle

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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).

Fig 4: Detaching Cover From Lock Cylinder

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Installation: 

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

3 Lock cylinder

Fig 5: Identifying Lock Cylinder

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Installation: 

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

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2. Only in this position will installation of the lock barrel be guaranteed.