See also:

Air volume, manual
To be able to manually adjust the air volume, switch off the AUTO program first. Press the left or right side of the button: decrease or increase air volume. The selected air volume is shown ...

Malfunction
A message is displayed in the instrument cluster. HDC is not available, e.g., due to elevated brake temperatures. ...

Reference
This chapter contains technical data, short commands for the voice activation system, and an index that will quickly take you to the information you need. ...