Valve Block For Lumbar Support

52 25 059 - Removing and installing/replacing valve block for lumbar support





Necessary preliminary tasks:
- Partially remove left or right rear seat backrest Backrest for Left or Right Rear Seat
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.