67 66 013 Removing and installing / replacing drive unit for lumbar support on left or right front seat (M3 Coupe)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2006 BMW M3, 2005 BMW M3, 2004 BMW M3, 2003 BMW M3, and 2002 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.

Detach backrest cover from backrest frame. Refer to 52 16 405 REPLACING BACKREST COVER ON FRONT LEFT OR RIGHT SEAT (SPORTS/ELECTRIC) .

Release cable ties (1).

Fig 1: Releasing Cable Ties

Courtesy of BMW OF NORTH AMERICA, INC.

Open clips (2) and open drive unit cover (3) in direction of arrow.

Disconnect plug connection (1).

Fig 2: Removing Drive Unit For Lumbar Support

Courtesy of BMW OF NORTH AMERICA, INC.

Remove drive unit for lumbar support (2) and detach hose (3) in direction of arrow.

NOTE: If necessary, gently heat hose (3) if firmly seated.

Installation:

Make sure drive unit for lumbar support (2) is correctly seated.

Make sure all hoses are laid without kinks.