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

Special tools required:

51 2 190

Necessary preliminary tasks:

If necessary, close side window
Remove SOUND INSULATION IN REAR DOOR

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.

Fig 1: Disconnecting Bowden Cable From Door Lock

Courtesy of BMW OF NORTH AMERICA, INC.

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

Lever out locking rod (1).

Unfasten plug connection (2) and disconnect.

Release screws (3) and maneuver out door lock above door aperture.

IMPORTANT: Do not damage gasket at door lock during removal (water ingress).

Fig 2: Identifying Door Locking Rod And Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Install door lock (1) and screw in screws (2) but to not tighten.

Slide special tool 51 2 190 into opened rotary striker until striker engages in first stage

Fig 3: Installing Special Tool (51 2 190) Into Rotary Striker

Courtesy of BMW OF NORTH AMERICA, INC.

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 panel (water ingress).

Fig 4: Identifying Door Lock, Knurled Screw And Special Tool (51 2 190)

Courtesy of BMW OF NORTH AMERICA, INC.

Tighten screws of door lock

Observe tightening sequence: bottom - top - inner.

Tightening torque 51 22 1AZ .

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