52 14 125 Replacing Left Lumbar Support Valve Unit

52 14 125 Replacing left lumbar support valve unit







Necessary preliminary tasks:
- Partially remove backrest cover







Remove valve body (2) from spring wire in direction of arrow.
Unfasten plug connection (1) and disconnect.

Installation note:
Check that valve body is correctly seated.







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

Valve unit for lumbar support:
1. Hose (clear) lumbar support pump
2. Hose (blue/red), lumbar support

Installation note:
Connections are coded against incorrect assembly.
Connect plug connection (3).







NOTE: Carry out function check.