67 66 012 Removing and Installing/Replacing Drive Unit For Lumbar Support On Left Or Right Front Seat (Comfort Seat)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2008 BMW 750i, 2008 BMW 750Li, 2007 BMW 750i, 2007 BMW 750Li, and 2006 BMW 750i. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove both rear panels on front seat . See 52 17 200 REMOVING AND INSTALLING/REPLACING UPPER REAR PANEL ON LEFT OR RIGHT FRONT SEAT BACKREST (COMFORT) and 52 17 202 REMOVING AND INSTALLING/REPLACING LOWER REAR PANEL ON LEFT OR RIGHT FRONT SEAT BACKREST (COMFORT) .

If necessary, unhook backrest cover (1) from backrest.

Cut through cable ties (2).

Unclip wiring harness at point (3) towards front.

Release screw (4) and feed out valve unit (5) towards top.

Fig 1: Identifying Backrest Cover, Cable Ties, Screw & Valve Unit

G04769214

Courtesy of BMW OF NORTH AMERICA, INC.

Cut through cable tie (1).

Push jacket of drive unit for lumbar support (2) in direction of arrow over drive unit for lumbar support (3).

Fig 2: Pushing Jacket Of Drive Unit For Lumbar Support Over Drive Unit For Lumbar Support

G04769215

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1).

Detach hose (2).

NOTE: If firmly seated, gently heat hose (2) on drive unit for lumbar support (3).

Installation:

Make sure hose (2) is laid without kinks.

Remove drive unit for lumbar support (3).

Fig 3: Identifying Plug Connection, Heat Hose, Lumbar Support & Jacket

G04769216

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement:

Pull drive unit for lumbar support (3) out of jacket (4).