51 21 090 Removing And Installing/Replacing Door Lock In Left Or Right Front Door

Necessary preliminary tasks:

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

Installation:

Make sure Bowden cable (1) is correctly routed.

Fig 1: Disengaging Bowden Cable From Locking Lever And Guide

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

Fig 2: Releasing Plug Connection And Linkage From Door Lock

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Release screws (1).

Tightening torque: 6 Nm

Fig 3: Identifying Screws

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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).

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

Fig 4: Identifying Door Lock, Paddle And Lock Cylinder

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Replacement:

Release screw (1) and remove door lock lever (2).

Tightening torque: 3 Nm

Remove cable guide (3).

Fig 5: Identifying Door Lock Lever And Cable Guide

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Open cover (1).

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

Fig 6: Removing Bowden Cable From Door Lock

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