51 22 090 Removing and Installing/Replacing Door Lock In Left or Right Rear Door

WARNING: This page is about a different car, the 2005 BMW 760i. 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 51 22 035 REMOVING AND INSTALLING FUNCTION CARRIER (WITHOUT ROLLER SUN BLIND) ON LEFT OR RIGHT REAR DOOR and/or 51 22 435 REMOVING AND INSTALLING FUNCTION CARRIER (WITH ROLLER SUN BLIND) ON LEFT OR RIGHT REAR DOOR
Remove reflector from door. See 51 21 ... REPLACING DOOR REFLECTOR

Build date up to 09/2004:

Feed out fiber optics cable.

Fig 1: Identifying Fiber Optics Cable

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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

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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 DOOR LOCK TENSIONER into corner (3) .

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

Fig 3: Unclip Lock Knob Control Rod

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Installation:

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

Fig 4: Identifying Special Tool (51 2 190)
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Installation:

Pretension door lock (1) with knurled screw (2) until special tool 51 2 190 DOOR LOCK TENSIONER 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 51 22 REAR DOOR LOCKS

Fig 5: Identifying Special Tool (51 2 190)
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Installation:

Seal (1) must not be damaged.

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

Fig 6: Identifying Seal

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Build date up to 09/2004:

Installation:

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

Fig 7: Identifying Fibre Optics Cable

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Replacement:

Feed out Bowden cable:

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

Fig 8: Pulling Out Bowden Cable Sleeve
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