Operating Touch Control (MBUX multimedia system)
Shows the home screen
swipe in the direction of the arrow (navigate)
Press (confirm)
Returns to the previous display 
Makes or accepts a call
Rejects or ends a call
Reduce volume: swipe down
Switches off the sound: press 
Calls up favourites (press briefly) or adds favourites (press and hold)
Starts the MBUX Voice AssistantTo operate Touch Control in the most effective way, use the tip of your thumb if possible.
You can navigate through menus and lists via the touch-sensitive surface of Touch Control using a single-finger swipe, for example:
To enter a character:
select a character using the keyboard and press on Touch Control . To select a menu option:
scroll in a list and press Touch Control . To move the digital map:
swipe in any direction.