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

Necessary preliminary tasks:

E53 comfort seat:

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

Fig 1: Detaching Backrest Cover From Backrest Frame

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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 in direction of arrow.

Fig 2: Detaching Transparent Hose From Valve Housing

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Installation:

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

Fig 3: Identifying Cleaning 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: Pulling off protective film from jacket

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