52 14 050 Replacing lumbar cushion on front left or right seat (older version)

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Necessary preliminary tasks:

Remove rear panel. See REAR PANEL (VERSION 1) or UPPER REAR PANEL (VERSION 2) .

Remove valve housing in direction of arrow from backrest frame.

Installation:

Check that valve housing is correctly seated.

Fig 1: Removing Valve Housing

G09879978

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock quick connectors and detach air hoses (1).

Valve unit for lumbar support:

Hose (blue/red), lumbar cushion

Installation:

Connections are coded against incorrect installation.

Fig 2: Identifying Lumbar Support Air Hoses

G09879979

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 3: Identifying Lumbar Cushion

G09879980

Courtesy of BMW OF NORTH AMERICA, INC.

Disengage backrest cover at bottom and side left or right from backrest frame.

Detach lumbar cushion (1) from spring wire.

Installation:

Hook lumbar support cushion (1) over second and fourth wires.

Remove lumbar cushion (1) sideways between backrest frame and padding.

Installation:

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

Air hoses (3) must be laid without kinks.

Fig 4: Identifying Lumbar Cushion And Air Hoses

G09879981

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Carry out FUNCTION TEST .