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61 31... Remount operating unit for additional seat function (clipped version)

Necessary preliminary tasks: 

Removal 

Release all latch mechanisms on the operating unit (1) using screwdriver (3-mm blade).

Fig 1: Removing Operating Unit Latch Mechanisms Using Screwdriver
G09881166Courtesy of BMW OF NORTH AMERICA, INC.

Feed out the operating unit (1) from the rear panel (2).

Fig 2: Removing Operating Unit From Rear Panel
G09881167Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect the connector from the printed circuit board (2) and remove the operating unit (1).

Fig 3: Identifying Operating Unit And Printed Circuit Board
G09881168Courtesy of BMW OF NORTH AMERICA, INC.

Unclip the button (1) using screwdriver (2) and pull out forwards.

Fig 4: Removing Operating Unit Button Using Screwdriver
G09881169Courtesy of BMW OF NORTH AMERICA, INC.

Installation 

Fit the memory button to the operating unit and press to lock into place.

Fig 5: Identifying Memory Button (Operating Unit)
G09881170Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Ensure keypads (1) are seated correctly.

Fig 6: Identifying Operating Unit Keypads
G09881171Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect the connector from the printed circuit board (2) and remove the operating unit (1).

Fig 7: Identifying Operating Unit And Printed Circuit Board
G09881168Courtesy of BMW OF NORTH AMERICA, INC.

Fit the operating unit (1) to the rear panel (2) and press to lock into place.

IMPORTANT: Pay attention to the freedom of movement and function of the remounted button!
Fig 8: Identifying Operating Unit And Rear Panel
G09881173Courtesy of BMW OF NORTH AMERICA, INC.

Required follow-up work