52 17 110 Replacing left lumbar support (comfort)

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Necessary preliminary tasks:

Partially remove backrest cover. See BACKREST COVER FOR DRIVER'S SEAT or BACKREST COVER FOR FRONT PASSENGER SEAT .

Unfasten plug connection (1) and disconnect.

Unlock quick connectors (2) and detach pressure line.

Detach valve body from pinetree clips.

Installation note:

Make sure valve body is securely seated.

Replace pine tree clips, if necessary.

Fig 1: Identifying Plug Connection, Quick Connectors, And Pine Tree Clips

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock and disconnect quick connector (1).

Unfasten plug connection (2) and disconnect.

Thread out cable and pressure line from fleece padding.

Fig 2: Identifying Plug Connection And Quick Connector

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Pop out upper fleece tabs (1) and disengage from spring wire.

Disengage fleece tabs (2) from spring wire.

Thread out lumbar support with fleece padding to the front.

Installation note:

Engage lumbar support with fleece padding over fourth and sixth wire.

Fig 3: Disengaging Fleece Tabs From Spring Wire

Courtesy of BMW OF NORTH AMERICA, INC.

Overview of lumbar support with valve body:

Installation note:

Check lumbar support for damage.

Make sure lumbar support is correctly fitted on fourth and sixth spring wire from below.

Air hoses must not be kinked.

Make sure valve body is securely seated.

Fig 4: Overview Of Lumbar Support With Valve Body

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Carry out a FUNCTIONAL CHECK .