52 14 110 Replacing left lumbar support

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Necessary preliminary tasks:

Remove front seat. See REMOVING DRIVER'S SEAT or REMOVING FRONT PASSENGER SEAT .
Partially remove backrest cover from front seat backrest. Partially remove backrest cover. See BACKREST COVER FOR DRIVER'S SEAT or BACKREST COVER FOR FRONT PASSENGER SEAT .

Unlock quick connectors and detach air hoses (1).

Valve unit for lumbar support:

Hoses (blue/red), lumbar support

Installation note:

Connections are coded against incorrect assembly.

Fig 1: Identifying Air Hoses

Courtesy of BMW OF NORTH AMERICA, INC.

Detach lumbar support (1) upward from spring wire.

Installation note:

Attach lumbar support cushion (1) over first and fifth wires.

Fig 2: Detaching Lumbar Support From Spring Wire

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

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

Air hoses (3) must be laid without kinks.

Fig 3: Identifying Lumbar Cushion Top/Bottom Sections And Air Hoses

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Carry out FUNCTION CHECK .