52 16 054 Removing and installing/replacing adjusting unit for backrest width adjustment on left or right front seat

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Necessary preliminary tasks:

Remove backrest cover for front seat. See 52 14 407 REPLACING BACKREST COVER FOR DRIVER'S SEAT (NORMAL/ELECTRIC) , 52 14 408 REPLACING BACKREST COVER FOR FRONT PASSENGER SEAT (NORMAL/ELECTRICAL) , 52 16 407 REPLACING BACKREST COVER (SPORT) FOR DRIVER'S SEAT or 52 16 408 REPLACING BACKREST COVER (SPORT) FOR FRONT PASSENGER SEAT .

Cut open cable strap (1).

Disconnect plug connection (2) on drive.

Installation note:

Lay cables without kinks.

Replace cable tie (1).

Fig 1: Identifying Cable Tie And Plug Connection

G10047243

Courtesy of BMW OF NORTH AMERICA, INC.

Release rivets (1) for drive.

Remove inner electric motor from backrest frame.

Fig 2: Identifying Rivets

G10047244

Courtesy of BMW OF NORTH AMERICA, INC.

Release rivets on left and right and remove adjusting elements.

Remove complete adjusting unit.

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

Fig 3: Identifying Left/Right Rivets

G10047245

Courtesy of BMW OF NORTH AMERICA, INC.