51 21 090 Removing and installing/replacing door lock in left or right front door

WARNING: This page is about a different variant/trim than selected.

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: Disconnecting Bowden Cable From Locking Lever

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

Fig 2: Disconnecting Plug Connection And Linkage From Locking Lever And Guide

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Release screws (1).

Tightening torque 51 21 4AZ .

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).

Fig 4: Identifying Door Lock And Lock Cylinder

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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.

Fig 5: Identifying Notch And Marking

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Replacement:

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

Tightening torque 51 21 5AZ .

Remove cable guide (3).

Fig 6: Identifying Door Lock Lever, Cable Guide And Screws

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Open cover (1).

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

Fig 7: Opening Cover

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