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

WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2015 BMW Alpina B7L, 2015 BMW Alpina B7, 2015 BMW 750i, 2015 BMW 750Li, and 2015 BMW 740i. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove SOUND INSULATION

Installation note:

Check function of child safety catch, as problems may arise:

Lock does not center in body aperture
Lock scrapes on inner door panel
Lock snags on inner door panel

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

Installation note:

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 can not be opened if Bowden cable (1) is incorrectly laid.

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

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Unclip locking rod (1).

Fig 2: Identifying Locking Rod

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Version with Soft Close Automatic:

Disconnect plug connection (1).

Unfasten screws (2).

Tightening torque 51 22 7AZ .

Fig 3: Identifying Plug Connection And Screws

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IMPORTANT: Do not damage door lock seal when removing.

Release screws (1).

Tightening torque 51 22 1AZ .

Remove door lock if necessary with Soft Close Automatic.

Fig 4: Identifying Door Lock With Screws

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Installation note:

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

Fig 5: Identifying Seal And Door Lock

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Installation note:

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 control line (3) is correctly laid in guides (4).

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

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Installation note:

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 7: Sliding Special Tool (51 2 190) Into Rotary Striker

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Installation note:

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 8: Installing Pre-Tension Door Lock With Knurled Screw Using Special Tool (51 2 190)

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