52 14 050 Replacing lumbar cushion on front left or right seat

WARNING: This page is about a different car, the 2013 BMW 550i GT, 2012 BMW 550i GT, 2011 BMW 550i GT, and 2010 BMW 550i GT. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks

Remove rear panel . See 52 14 198 REMOVING AND INSTALLING OR REPLACING REAR PANEL ON LEFT OR RIGHT FRONT SEAT BACKREST or 52 17 205 REMOVING AND INSTALLING/REPLACING BOTH REAR PANELS ON LEFT OR RIGHT FRONT SEAT BACKREST on rear seat backrest.

Remove valve housing in direction of arrow from backrest frame.

Installation:

Check that valve housing is correctly seated.

Fig 1: Removing Valve Housing From Backrest Frame

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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 Air Hoses

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 3: Identifying Lumbar Cushion

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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 Air Hoses And Lumbar Cushion At Top And Bottom

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Carry out FUNCTION TEST.