52 15 060 Replacing an air cushion for left or right backrest width adjustment

WARNING: This page is about a different car, the 2008 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove Rear Panel On Front Seat

Detach backrest cover (1) from backrest frame.

Fig 1: Detaching Backrest Cover From Backrest Frame

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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.

Fig 2: Identifying Air Cushion And Spring

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Installation:

Insert air cushion without kinks.

Check air cushion for damage.

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

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NOTE: Carry out Function Check .