52 17 055 Removing and installing/replacing both adjusting units for backrest width adjustment on driver's seat

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 SIDE AIRBAG (front seat)
Remove BACKREST COVER for front seat

Release rivets (1) on left and right and remove trim (2).

Fig 1: Identifying Rivets And Trim

Courtesy of BMW OF NORTH AMERICA, INC.

Release cable tie (1).

Installation:

Lay cables (3) without kinks.

Disconnect plug connection (2) on drive.

Fig 2: Identifying Cable Tie, Cables And Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Release rivets (1) on left and right and remove adjusting elements (3).

Release rivets (2) for drive.

Remove complete adjusting unit.

NOTE: Adjusting element, cables and drive form a single unit and can only be replaced completely.

Fig 3: Identifying Adjusting Elements And Rivets

Courtesy of BMW OF NORTH AMERICA, INC.