52 14 050 Removing and installing/replacing lumbar cushion on front seat

WARNING: This page is about a different variant/trim than selected.

Necessary preliminary tasks:

Detach backrest cover (1) from backrest frame.

Fig 1: Identifying Backrest Cover

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

NOTE: Connections are coded against incorrect assembly.

Fig 2: Identifying Air Hoses And Valve Housing

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Detach lumbar support (1) from spring wire (2).

Installation:

Attach lumbar support (1) to third and fifth wires from below.

Unclip air hoses (3) and (4) from holder.

Fig 3: Identifying Lumbar Support, Spring Wire And Air Hoses

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Press back support (1) a little.

Pull lumbar support (2) up and out.

Feed air hoses out of backrest frame and spring wire.

Fig 4: Identifying Back Support And Lumbar Cushion

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Installation:

Check lumbar support at top (1) and bottom (2) for damage.

Air hoses (3) must not be kinked.

Fig 5: Identifying Air Hoses And Lumbar Support Cushions

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Installation: