See also:

Deleting all music files
This function deletes all music files from the MUSIC REGISTER. The deletion procedure may take several minutes. In order to prevent malfunctions, do not use COMAND during this period. Select ...

Cleaning the headliner and carpets
Roof lining: use soft brushes or dry shampoo if it is particularly dirty. Carpets: use carpet and textile cleaners that have been approved and recommended by Mercedes-Benz. ...

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 ...