See also:

Cleaning the steering wheel and gear or selector lever
  Thoroughly wipe with a damp cloth or use leather care agents that have been recommended and approved by Mercedes- Benz. ...

Adjusting the head restraint height electrically
To adjust the head restraint height: slide the switch for head restraint adjustment up or down in the direction of the arrow. ...

Hiding/showing the navigation menu
To show: turn or slide the COMAND controller. This function is not available while the DVD's own menu is being displayed. To hide: slide the COMAND controller. or Wait for appro ...