Procedures
Pressure-Holding Valve
The pressure-holding valve is maintenance-free and may only be replaced in the case of a noticeable leak.
The vehicle must be on a lifting platform to replace the pressure-holding valve. The vehicle wheels must rotate freely.
• The pressure-holding valve is open when the air line is screwed into the air spring shock absorber. If the air line is disconnected from the air spring shock absorber, the pressure-holding valve is closed.