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

Remove window guide rail at rear. Refer to 51 33 000 Removing and installing power window regulator in left or right front door .

Disconnect plug connection (1) on door lock (2).

Fig 1: Disconnecting Plug Connection On Door Lock

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Release screws (1) on door lock (2).

Fig 2: Releasing Screws On Door Lock

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Installation:

Replace screws (1).

Tightening torque, 51 21 1AZ. Refer to BODY EQUIPMENT - TIGHTENING TORQUES .

Lever pressure rod (1) out of door lock (2).

Fig 3: Removing Door Lock

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Lever door lock (2) out of paddle (3) and remove.

Installation:

Journal (1) must be located in notch (2) in paddle take-up of door lock (3).

Fig 4: Identifying Journal Located In Notch

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Installation:

Rubber grommet (2) must be fitted on paddle (1).

Fig 5: Installing Rubber Grommet On Paddle

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Push paddle take-up (3) of door lock onto paddle (1).

NOTE: For purposes of clarity, the door lock is shown removed.

CAUTION: For adjustment of pressure rod, centering pin (1) must be inserted in door lock (2).
Centering pin (1) secures lever (3) with door lock (2).
Correct adjustment is not possible without the centering pin and the door will not be able to be opened from either the inside or the outside.

Fig 6: View Of Centering Pin

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Installation:

Lever (3) must be pretensioned with centering pin (see Fig 6).

Spring (1) must be in initial engagement setting.

Fit pressure rod (2) on lever (3).

Fig 7: Fitting Pressure Rod On Lever

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Press spring (1) fully into pressure rod (2).

Pressure rod (2) is now free of play.

Remove centering pin (see Fig 6).

Replacement only:

Lift out lock (1) and detach Bowden cable (2) from fixture (3).

Fig 8: Removing Bowden Cable Nipple From Lever

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Remove Bowden cable nipple (4) from lever (5).

Installation:

Perform function check with door open.