See also:

Problems with the cooling with air dehumidification function
If you can no longer switch on the cooling with air dehumidification function via COMAND, the cooling with air dehumidification function is switched off due to a malfunction. Consult a qualifi ...

Cleaning the headliner and carpets
  Headliner: use a soft brush or a cleaning agent recommended and approved by Mercedes-Benz to remove heavy soiling.   Carpets: use the carpet and textile cleaning agents recommended ...

Controlling the front climate control using the front control panel
Turn the SmartKey to position 2 in the ignition lock. Set the desired temperature. To switch on: press the rocker switch up or down. The indicator lamp in the rocker switch lights up. ...