52 14 060 Removing and installing/replacing valve housing for front lumbar support (normal/electric) on left or right

WARNING: This page is about a different car, the 2003 BMW X5, 2002 BMW X5, and 2001 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

Carry Out Following Tasks Beforehand:

Remove rear panel on front seat backrest. Refer to 52 13 198 REMOVING AND INSTALLING/REPLACING REAR PANEL ON LEFT OR RIGHT FRONT SEAT BACKREST (NORMAL/MANUAL) or 52 17 200 REMOVING AND INSTALLING/REPLACING TOP REAR PANEL ON FRONT SEAT BACKREST (LUXURY SEAT) or 52 17 202 REMOVING AND INSTALLING/REPLACING BOTTOM REAR PANEL ON FRONT SEAT BACKREST (LUXURY SEAT) .

Detach backrest cover (1) from backrest frame (2).

Fig 1: Detaching Backrest Cover From Backrest Frame

Courtesy of BMW OF NORTH AMERICA, INC.

Version with lumbar support and backrest width adjustment only:

Detach hoses (1) and (2) at cutting line (heat with hot air blower if necessary).

Hose (blue) upper cushion (lumbar support).
Hose (red) lower cushion (lumbar support).
Hose (white) right cushion (backrest width adjustment).
Hose (white) left cushion (backrest width adjustment).
Motor pump unit (drive unit).

Remove drive unit. Refer to 67 66 010 REMOVING AND INSTALLING/REPLACING LUMBAR SUPPORT DRIVE MECHANISM ON FRONT SEAT, LEFT OR RIGHT .

Fig 2: Detaching Hoses

Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten plug connection (1).

NOTE: If necessary, gently heat air hose when firmly seated.

Disconnect hoses (3)-(5) from valve housing (2).

(3) Hose (blue) top cushion.
(4) Hose (red) bottom cushion.
(5) Hose (transparent), lumbar support pump (on housing black).

Fig 3: Unfastening Plug Connection
Courtesy of BMW OF NORTH AMERICA, INC.