51 22 090 Removing and installing/replacing door lock in left or right rear door

Special tools required

51 2 190

Necessary preliminary tasks

Remove acoustic insulation .
Remove REAR FIXED DOOR WINDOW .
If necessary for special equipment, automatic soft close unit:

Removing POWER WINDOW UNIT .

Disconnect Bowden cable at bottom (1) and top (3) from door lock (2).

Installation:

Bowden cable must be correctly engaged in locators in door lock (2).

Bowden cable must be laid without kinks in bend to door lock (2).

Seal (4) must be correctly fitted on Bowden cable.

IMPORTANT: Door cannot be opened if Bowden cable (1) is incorrectly laid.

Fig 1: Disconnecting Bottom And Top Bowden Cable From Door Lock

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Unclip locking rod (1).

Fig 2: Identifying Door Locking Rod

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Version with Soft Close Automatic:

Disconnect plug connection (1).

Unfasten screws (2).

Tightening torque 51 22 6AZ .

Fig 3: Disconnecting Plug Connection

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IMPORTANT: Do not damage door lock seal when removing.

Release screws (1).

Tightening torque 51 22 1AZ .

Fig 4: Identifying Door Lock, Locking Pin And Screws

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Installation:

Seal (1) on door lock (3) must not be damaged.

Fig 5: Identifying Seal Applying Area On Door Lock

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Installation:

Version with Soft Close Automatic:

Make sure Soft Close Automatic drive (1) is installed in correct installation position. Control line (3) must not be twisted around Bowden cable (2).

Make sure the control line (3) and Bowden cable (2) are correctly laid.

Fig 6: Identifying Soft Close Automatic Drive, Control Line And Bowden Cable

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For version with Soft Close Automatic:

IMPORTANT: In order for there to be enough adjustment range in the area (A), the Bowden cable (1) of the Soft-Close-Automatic must be in the recess in area (B) (risk of damage).

Fig 7: Identifying Bowden Cable And Soft-Close-Automatic Adjustment Ranges

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Installation:

Install door lock and insert screws (1), do not tighten down.
Slide special tool 51 2 190 into opened rotary striker until striker engages in first stage

Fig 8: Installing Door Lock Screws Using Special Tool (51 2 190)
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Installation:

Pre-tension door lock (1) with knurled screw (2) until special tool 51 2 190 just contacts corner points (3)

IMPORTANT: To tension door lock (1), it is only permitted to tighten knurled screw (2) by a further 1 to 1.5 turns (max.) (risk of damage).
Door lock seal must rest uniformly on inner door plate (water ingress).

Fig 9: Turning Tension Door Lock Knurled Screw

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Tighten down door lock screws, tightening torque 51 22 1AZ .