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

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Special tools required:

51 2 190

Necessary preliminary tasks:

Remove SOUND INSULATION

Installation:

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:

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.

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

Courtesy of BMW OF NORTH AMERICA, INC.

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

Unclip locking rod (1).

Fig 2: Identifying Locking Rod

Courtesy of BMW OF NORTH AMERICA, INC.

Version with Soft Close Automatic:

Disconnect plug connection (1).

Unfasten screws (2).

Tightening torque 51 22 7AZ .

Fig 3: Identifying Plug Connection And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

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 Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

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

Fig 5: Locating Door Lock Seal

Courtesy of BMW OF NORTH AMERICA, INC.

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

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

Courtesy of BMW OF NORTH AMERICA, INC.

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 7: Sliding Special Tool (51 2 190) Into Opened Rotary Striker
Courtesy of BMW OF NORTH AMERICA, INC.

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

Courtesy of BMW OF NORTH AMERICA, INC.

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