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 750xi, 2011 BMW 750Lxi, 2010 BMW 750xi, and 2010 BMW 750Lxi. 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 REAR PANEL (NORMAL/ELECTRIC SEAT) or REAR PANELS (COMFORT SEAT)

Unfasten plug connection (1) and disconnect.

Release clips (2).

Feed out drive unit for lumbar support in upward direction.

Installation:

Replace faulty clips (2).

Fig 1: Removing Lumbar Support Drive Unit To Upward Direction

Courtesy of BMW OF NORTH AMERICA, INC.

Release cable tie (1) from jacket (2).

Feed out drive unit for lumbar support out of jacket (2).

Detach hose (3).

NOTE: Gently heat hose (3) if stuck.

Installation:

Make sure hose (3) is laid without kinks.

Fig 2: Identifying Lumbar Support Drive Unit Cable Tie, Jacket And Heat Hoses

Courtesy of BMW OF NORTH AMERICA, INC.