Removing the rear left and right head restraint guides

NOTE: Description is for left component only. Procedure on the right side is identical.

NOTE: To provide a better overview: Schematic diagram with partially hidden components.

Release detents (1) of head restraint guides (2) from inside using special tool 0 494 627 (52 0 070).
Remove head restraint guides (2) upwards.

Courtesy of BMW OF NORTH AMERICA, INC.