52 25 059 Removing and installing/replacing valve block for lumbar support
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 LEFT OR RIGHT REAR SEAT BACKREST
Release rear seat backrest only and move forwards
Unfasten plug connection (1) and disconnect.
Remove valve block in direction of arrow.
Detach air hoses from valve block.
(2) Outlet, upper lumbar cushion
(3) Outlet, lower lumbar cushion
(4) Supply line from massage pump
NOTE:
Gently heat the air hoses if too tightly seated on the valve housing.