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

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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 Body From Backrest Frame

G09927428

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 Air Hoses

G09927429

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 3: Identifying Hook Lumbar Support Cushion

G09927430

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 Top And Bottom

G09927431

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Carry out FUNCTION TEST .