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 2011 BMW M3, 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. 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

Disconnect plug connection (1).

Remove drive unit for lumbar support (2) with jacket from backrest frame and expose.

Installation:

Make sure drive unit for lumbar support (2) is in correct installation position.

Fig 1: Identifying Plug Connection And Lumbar Support

Courtesy of BMW OF NORTH AMERICA, INC.

Detach hose (1) from drive unit (2).

NOTE: Gently heat hose (1) if stuck.

Installation:

Hose (1) on drive unit (2) must not be kinked.

Pull jacket (3) off drive unit (2).

Remove drive unit for lumbar support (2).

Fig 2: Disconnecting Hose From Drive Unit

Courtesy of BMW OF NORTH AMERICA, INC.