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 19 other vehicles, including the 2010 BMW M5, 2009 BMW M5, 2008 BMW M5, 2007 BMW M5, and 2007 BMW 550i. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove SOUND INSULATION in rear area only.
If necessary, remove CRASHPAD .

Only when removing door lock:

Remove BOWDEN CABLE for inside door opener.

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).

IMPORTANT:

Bowden cable must be correctly located in mounts on door lock (2).

Seal (4) must be correctly positioned on Bowden cable.

NOTE:

The operations for "Removing Bowden cable from door lock" end here.

Fig 1: Disconnecting Bowden Cable At Bottom And Top

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Unlock plug connection (1) at lugs (2) and detach from door lock (3).

Unclip locking rod (4) from door lock (3).

Fig 2: Disconnecting Plug Connection

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Version with Soft Close Automatic:

Disconnect plug connection (1).

Unfasten cable tie (2).

Release screw (3) and nuts (4).

Tightening torque: see 10AZ in 51 22 REAR DOOR LOCKS

Fig 3: Identifying Plug Connection, Cable Tie, And Nuts

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IMPORTANT:

Do not damage door lock seal during removal.

Release screws (1).

Remove door lock (2) from inside.

IMPORTANT: To avoid leakage and electrical malfunction:

Pull door lock (2) with special tool into corner (3).

See Fig 6 and Fig 7.

Fig 4: Removing Door Lock From Inside

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Installation:

Seal (1) on door lock (2) must not be damaged.

Fig 5: Installing Seal On Door Lock

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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 6: Installing Door Lock

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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 rest uniformly on inner door plate (water ingress).

Tighten down door lock screws. Tightening torque: see 1AZ in 51 22 REAR DOOR LOCKS .

Fig 7: Tightening Door Lock Screws

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Installation:

Check function of child lock (1) on door lock (2).

Fig 8: Checking Child Lock On Door Lock

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Replacement with Soft Close Automatic:

Release nuts (1) and remove bracket (2).

Tightening torque: see 11AZ in 51 22 REAR DOOR LOCKS

Fig 9: Identifying Nuts And Bracket

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