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 2009 BMW 528xi, 2009 BMW 528i, 2008 BMW 528xi, and 2008 BMW 528i. 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. See 52 14 198 REMOVING AND INSTALLING / REPLACING REAR PANEL ON LEFT OR RIGHT FRONT SEAT BACKREST (NORMAL / ELECTRIC) .

Cut through cable tie (1).

Pull drive unit for lumbar support (2) with jacket slightly out of backrest frame (3).

Fig 1: Removing Drive Unit For Lumbar Support

Courtesy of BMW OF NORTH AMERICA, INC.

Cut through cable tie (1) on jacket of drive unit for lumbar support (2).

Fig 2: Identifying Cable Tie On Jacket Of Drive Unit For Lumbar Support

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:

Fig 3: Removing Drive Unit For Lumbar Support

Courtesy of BMW OF NORTH AMERICA, INC.

Make sure hose (2) is laid without kinks.

Remove drive unit for lumbar support (3).

Replacement:

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