52 17 054 Removing and installing/replacing adjusting unit for backrest width adjustment on left or right front seat

WARNING: This page is about a different car, the 2005 BMW 745i, 2004 BMW 745i, 2003 BMW 745i, and 2002 BMW 745i. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove front seat. Refer to 52 14 000 REMOVING AND INSTALLING LEFT OR RIGHT FRONT SEAT (NORMAL/ELECTRIC) .
Remove both rear panels on front seat backrest. Refer to 52 17 205 REMOVING AND INSTALLING/REPLACING BOTH REAR PANELS ON LEFT OR RIGHT FRONT SEAT BACKREST (COMFORT) .
Remove inner cover on front seat. Refer to 52 14 041 REMOVING AND INSTALLING INNER COVER ON LEFT OR RIGHT FRONT SEAT (NORMAL/ELECTRIC) .
Remove backrest cover for front seat. Refer to 52 17 405 REPLACING BACKREST COVER FOR LEFT OR RIGHT FRONT SEAT (COMFORT) .

Unfasten cable clip (1).

Fig 1: Removing Cable Clip And Plug Connection On Drive

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Lay cables (3) without kinks.

Disconnect plug connection (2) on drive.

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

Fig 2: Removing Adjusting Unit

Courtesy of BMW OF NORTH AMERICA, INC.

Release rivets (2) for drive.

Remove complete adjusting unit.

NOTE: Adjusting element (3), cables and drive form a single unit and can only be replaced completely.