52 14 060 Removing and installing/replacing valve body for left or right front lumbar support

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Necessary preliminary work:

Normal/electric seat: Remove REAR PANEL .
Comfort seat: Remove BOTH REAR PANELS .

Remove valve body in direction of arrow from backrest frame.

Installation note:

Check that valve body is correctly seated.

Fig 1: Removing Valve Body From Backrest Frame

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock plug connection (3) and disconnect.

Unlock quick connectors and detach air hoses (1) and (2).

Valve unit for lumbar support:

Hose (clear), lumbar support drive
Hose (blue/red), lumbar support

Installation note:

Connections are coded against incorrect assembly.

Fig 2: Identifying Air Hoses And Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Carry out a FUNCTIONAL CHECK .