52 17 062 Removing and installing/replacing front left or right lumbar support with valve housing (active 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 on front seat backrest.
Partially remove backrest cover . See 52 17 407 REPLACING BACKREST COVER FOR DRIVER'S SEAT (COMFORT) or 52 17 408 REPLACING BACKREST COVER FOR FRONT PASSENGER SEAT (COMFORT) .

Unfasten plug connection (1) and disconnect.

Detach valve housing from pinetree clips.

Fig 1: Identifying Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 2: Disconnecting Quick Connector And Feed Air Hose Out Of Fleece Mat

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock and disconnect quick connector (1) and feed air hose out of fleece mat.

Pop out upper fleece tabs and disengage from spring wire.

Pop out lower fleece mat.

Unlock and disconnect quick connector (2).

Remove lumbar cushion with valve housing downwards between backrest frame and backrest padding.

Overview of lumbar support with valve housing

Fig 3: Overview Of Lumbar Support With Valve Housing

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Check lumbar cushion for damage.

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

Air hoses must not be kinked.

Make sure valve housing is correctly seated.

NOTE: Carry out FUNCTION TEST.