67 66 010 Removing and installing/replacing lumbar support drive mechanism on front seat, left or right

WARNING: This page is about a different car, the 2005 BMW 645Ci and 2004 BMW 645Ci. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

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

E53 comfort seat:

Remove rear panel at bottom

Detach backrest cover (1) in direction of arrow from backrest frame (2).

Fig 1: Detaching Backrest Cover

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Disconnect plug connection (1).

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

If necessary, detach fabric adhesive tape (4).

Detach drive unit for lumbar support (5) with jacket in direction of arrow.

Fig 2: Detaching Drive Unit For Lumbar Support

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Installation:

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

Fig 3: Identifying Adhesive Area On Backrest Frame

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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 Protective Film On Jacket

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