Necessary preliminary tasks

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Remove REAR PANEL ON FRONT SEAT

Fig 1: Removing Backrest Cover From Backrest Frame
Courtesy of BMW OF NORTH AMERICA, INC.

Detach backrest cover (1) from backrest frame.

NOTE: Removal of the cushion on the left side is depicted; proceed in the same way for the right side.
Air cushion must be completely drained.

Disconnect spring (1).

Lever out clips with plastic wedge.

Feed out air cushion (2) between spring wire and backrest frame.

Installation:

Insert air cushion without kinks.

Check air cushion for damage.

Fig 2: Removing Spring And Air Cushion

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock quick connector and detach air hoses (1 and 2) from valve housing (3).

If necessary, remove VALVE HOUSING .

Installation:

Connections are coded against incorrect assembly.

Air hoses must not be kinked.

Fig 3: Identifying Air Hoses And Valve Housing

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Carry out OPERATIONAL CHECK .