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 545i and 2004 BMW 545i. However, it is still accessible from the selected car via links, so may be relevant.

Necessary Preliminary Tasks:

Remove front seat. Refer to 52 17 000 REMOVING AND INSTALLING LEFT OR RIGHT FRONT SEAT (COMFORT) .
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 17 041 REMOVING AND INSTALLING/REPLACING INNER COVER ON LEFT OR RIGHT FRONT SEAT (COMFORT) .
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).

Installation:

Lay cables (3) without kinks.

Disconnect plug connection (2) on drive.

Fig 1: View Of Cable In Front Seat

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

Fig 2: Locating Rivets For Adjusting Elements

Courtesy of BMW OF NORTH AMERICA, INC.