67 66 013 Removing and installing / replacing drive unit for lumbar support on left or right front seat (sports seat)

WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2006 BMW 325Ci, 2005 BMW 325xi, 2005 BMW 325i, 2005 BMW 325Ci, and 2004 BMW 325xi. However, it is still accessible from the selected car via links, so may be relevant.

Remove rear panel on front seat backrest. See 52 14 198 REMOVING AND INSTALLING/REPLACING REAR PANEL ON LEFT OR RIGHT FRONT SEAT BACKREST (NORMAL/ELECTRIC)

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

Fig 1: Disconnecting Backrest Cover From Backrest Frame

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Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1).

Detach transparent hose (2) from valve housing (3).

NOTE: If necessary, gently heat transparent hose (2) if firmly seated.

If necessary, detach fabric adhesive tape (4).

Detach drive unit for lumbar support (5) with jacket towards rear.

Fig 2: Disconnecting Drive Unit For Lumbar Support

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Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Clean adhesive area (1) on backrest frame (2).

Fig 3: Identifying Adhesive Area On Backrest Frame

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Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Transparent hose (1) of drive unit for lumbar support must not be kinked.

Pull off protective film (3) from jacket (2).

Stick drive unit for lumbar support to backrest frame.

If necessary, secure jacket (2) with cable strap.

Fig 4: Identifying Transparent Hose And Protective Film On Jacket

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Courtesy of BMW OF NORTH AMERICA, INC.