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 9 other vehicles, including the 2008 BMW 760Li, 2008 BMW 750i, 2008 BMW 750Li, 2007 BMW 760Li, and 2007 BMW 750i. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

51 2 190

Necessary preliminary tasks:

Close window in rear door
Remove function carrier.
See REMOVING AND INSTALLING/REPLACING FUNCTION CARRIER ON LEFT OR RIGHT FRONT DOOR or REMOVING AND INSTALLING FUNCTION CARRIER (WITH ROLLER SUN BLIND) ON LEFT OR RIGHT REAR DOOR
Remove REFLECTOR from door

Build date up to 09/2004:

Feed out fibre optics cable.

Fig 1: Removing Fibre Optics Cable

Courtesy of BMW OF NORTH AMERICA, INC.

Feed out Bowden cable on carrier.

Pull out Bowden cable towards bottom
Pull out Bowden cable sideways

NOTE: Only fit clip (3) on Bowden cable with blue sealing cap.

Fig 2: Pulling Out Bowden Cable

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT:

Do not damage door lock seal when removing.

Unclip lock knob control rod (1).

Release screws (2).

Remove door lock from inside (twist out).

IMPORTANT:

To avoid leakage and electrical malfunction, pull door lock with special tool 51 2 190 into corner (3), refer to next work step.

Door lock must be at zero current with Soft Close Automatic (risk of damage).

Fig 3: Uncliping Lock Knob Control Rod

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 latch until latch engages in first stage.

Fig 4: Identifying Special Tool 51 2 190
Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Pretension 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 turn knurled screw (2) by a further 1 to 1.5 turns (max.) (risk of damage).
Door lock seal must be uniformly positioned (water ingress).

Tighten down door lock screws (1), tightening torque: 51 22 1AZ . See REAR DOOR LOCKS for specs.

Fig 5: Identifying Knurled Screw And Special Tool 51 2 190
Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Seal (1) must not be damaged.

Door lock must be replaced if seal (1) is faulty.

Fig 6: Identifying Seal

Courtesy of BMW OF NORTH AMERICA, INC.

Build date up to 09/2004:

Installation:

Fibre optics cable (1) must be routed below bridge (2).

Fig 7: Identifying Fibre Optics Cable

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement:

Feed out Bowden cable:

Pull out Bowden cable sleeve.
Turn Bowden cable and pull out.

Fig 8: Pulling Out Bowden Cable Sleeve
Courtesy of BMW OF NORTH AMERICA, INC.