Depressurize air suspension circuit

This function must be performed before work on the air suspension begins, to make the pneumatic suspension depressurized.
Note:
Check that no people or objects can become trapped under the vehicle and that the wheels are free in the wheel arches during lowering.
The vehicle must stand on the wheels.
Set the suspension in the lowest position, to ensure that the evacuation of the pressure is completed.
The function is in progress for about 3 minutes.
The battery must be disconnected, when the function is complete.
Preconditions for the test:
Procedure:
  1. Start the function and follow the instructions in the program.
  2. A dialogue box presents "Function complete"/"Operation failed".
  3. Funcţia este executată.
  4. Turn off the ignition and wait for about 15 minutes.
  5. Disconnect the battery.
  6. Ready.