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 545i and 2004 BMW 545i. 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) .

Cut through cable tie (1).

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

Fig 1: View Of 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: Locating Cable Tie On Jacket Of Drive Unit

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).

Replacement:

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

Fig 3: Removing Drive Unit For Lumbar Support

Courtesy of BMW OF NORTH AMERICA, INC.