52 14 050 Replacing lumbar support on front left or right seat

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

Special tools required:

52 0 050

Necessary preliminary tasks:

Remove rear panel . See 52 17 205 REMOVING AND INSTALLING/REPLACING BOTH REAR PANELS ON LEFT OR RIGHT FRONT SEAT BACKREST or 52 14 198 REMOVING AND INSTALLING OR REPLACING REAR PANEL ON LEFT OR RIGHT FRONT SEAT BACKREST on front seat backrest

Fig 1: Identifying Backrest Cover, Air Hoses And Lumber Support Clamps
Courtesy of BMW OF NORTH AMERICA, INC.

Detach backrest cover (1) at bottom from backrest frame.

Remove valve body . See 52 14 060 REMOVING AND INSTALLING/REPLACING VALVE HOUSING FOR LEFT OR RIGHT FRONT LUMBAR SUPPORT (NORMAL/ELECTRIC) , 52 17 060 REMOVING AND INSTALLING/REPLACING VALVE HOUSING FOR LUMBAR CUSHION (COMFORT) or 52 13 060 REMOVING AND INSTALLING/REPLACING VALVE HOUSING FOR LEFT OR RIGHT FRONT LUMBAR SUPPORT (NORMAL/SEMI-ELECTRIC) .

Disconnect air hoses (2) from valve body.

NOTE: Heat air hoses gently if they are firmly seated on valve body.

Housing of valve block must not be unclipped (leakage). If necessary, release mount and clip housing together.

If necessary, cut all clamps on lumbar support (3) and spring wire.

NOTE: Remove all remnants of clamps. Bend new clamps to shape with special tool 52 0 050 .

Detach lumbar support (3) from spring wire.

Remove lumbar support (3) downwards between backrest frame and seat mechanism.

Installation note:

Make sure air hoses are correctly connected to valve block (color coding).

Air hoses must be laid without kinks.

Check lumbar support for damage.