Removing backrest width adjustment with valve (M CFRP bucket seat)

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Preliminary work

Refer to REMOVING DRIVER'S SEAT .
Refer to REMOVING OUTER COVER ON FRONT SEAT .
Refer to REMOVING INNER COVER FROM THE FRONT SEAT .
Refer to REMOVING THE INSERT OF THE HEAD RESTRAINT (M CFRP BUCKET SEAT) .
Refer to REMOVING THE EMBLEM FROM THE BACKREST OF THE FRONT SEAT (M CFRP BUCKET SEAT) .
Refer to REMOVING THE FRONT APERTURE TRIM (M CFRP BUCKET SEAT) .
Refer to REMOVING THE REAR APERTURE TRIM (M CFRP BUCKET SEAT) .
Refer to REMOVING THE BACKREST COVERING WITH THE CUSHION (M CFRP BUCKET SEAT) .

Carefully release all the marked attachment points of the backrest width adjustment (1).
Unlock plug connections (2) and disconnect.
Release the yellow-marked cables and lines from the backrest frame carefully .
Remove the backrest width adjustment with valve (1).

Courtesy of BMW OF NORTH AMERICA, INC.