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

WARNING: This page is about a different car, the 2013 BMW X5 M, 2012 BMW X5 M, 2011 BMW X5 M, and 2010 BMW X5 M. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

51 2 190

Necessary preliminary tasks

Remove SOUND INSULATION
E70 Security: Slacken screws for protective mat.

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

Disconnect Bowden cable to outer door handle 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 can not be opened if Bowden cable (1) is incorrectly laid.

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

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

Fig 2: Uncliping Locking Rod From Door Lock

Courtesy of BMW OF NORTH AMERICA, INC.

Version with Soft Close Automatic:

Disconnect plug connection (1).

Unfasten screws (2).

Fig 3: Identifying Plug Connection And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Do not damage door lock seal during removal.

Release screws (1).

Remove door lock (2) from inside and carefully feed out.

IMPORTANT: To avoid leaking and electrical malfunction:
Pull door lock (2) with special tool into corner (3), see Figs.
R51 3381 and R51 7594.

Fig 4: Identifying Door Lock, Corner And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

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

Adapter switching socket (4) must be correctly engaged.

Door wiring harness must be correctly laid in guide (3).

Fig 5: Locating Door Lock Gasket

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Version with Soft Close Automatic:

Make sure Automatic Soft Close system 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 Soft Close Automatic Drive, Bowden Cable, Control Line And Guides

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

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 note:

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 panel (water ingress).

Fig 8: Pre-Tensioning Door Lock With Knurled Screw Using Special Tool (51 2 190)

Courtesy of BMW OF NORTH AMERICA, INC.

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

Installation note:

Carry out function check of child safety catch (1) and door lock (2) with door opened.

Fig 9: Checking Function Of Child Safety Catch And Door Lock

Courtesy of BMW OF NORTH AMERICA, INC.