This function is used to raise or lower the pressure in the spring plungers.
Lower the pressure to approximately 3 bar before replacing the spring plunger unit.
The vehicle must only be lowered onto its wheels with the air springs filled (>3 bar).
Test conditions:
Ignition on.
Battery voltage above 12 V. Battery charger recommended.
No faults in the system.
Procedure:
Start the function.
Choose whether to raise or lower the pressure in the spring plunger.
Use the activation buttons to confirm your choice.
A correct reading can be made approximately 10 seconds after activation.
Stop the function and disconnect the diagnostic tool before working on the vehicle.