52 25 048 Removing and installing/replacing pump for lumbar and massage

WARNING: This page is about a different car, the 2011 BMW 750xi, 2011 BMW 750Lxi, 2010 BMW 750xi, and 2010 BMW 750Lxi. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Partially remove BACKREST FOR LEFT OR RIGHT REAR SEAT

Release backrest only and move forwards

Release screws (1).

Fig 1: Identifying Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten plug connection (1) and disconnect.

Pull off air hose (2).

NOTE: Gently heat the air hoses if too tightly seated on the valve block.

Open quick connectors and detach air hoses (3) and (4).

(2) Air hose (blue), outlet to valve block for massage

(3) Air hose (grey), outlet to valve block for lumbar

(4) Air hose (grey), access from valve block for massage

Fig 2: Identifying Air Hose

Courtesy of BMW OF NORTH AMERICA, INC.