52 15 055 Removing and installing or replacing lumbar cushion on front seat

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 BMW X3, 2016 BMW X3, 2015 BMW X3, 2014 BMW X3, and 2013 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove REAR PANEL ON FRONT SEAT

Detach backrest cover (1) from backrest frame.

Fig 1: Detaching Backrest Cover

G09851345

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock quick connectors and detach air hoses (1 and 2) from valve body (3).

NOTE: Connections are coded against incorrect assembly.

Fig 2: Identifying Valve Housing And Air Hoses

G09851360

Courtesy of BMW OF NORTH AMERICA, INC.

Detach lumbar support (1) from spring wire (2).

Installation note:

Attach lumbar support (1) at third and fifth wire from below.

Unclip air hoses (3) and (4) from holder.

Fig 3: Locating Lumbar Supports And Air Hoses

G09851438

Courtesy of BMW OF NORTH AMERICA, INC.

Press back padding (1) a little.

Pull out lumbar cushion (2) towards top.

Feed air hoses out of backrest frame and spring wire.

Fig 4: Pulling Out Lumbar Cushion

G09851362

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

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

Air hoses (3) must not be kinked.

Fig 5: Identifying Lumbar Cushion And Air Hoses

G09851363

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Carry out FUNCTION CHECK .