Mercedes-Benz E-Class Sedan Operator's Manual page 223

Command
Vehicle commands
Command
Function
To create a message. All address book names are available.
To reply to a message
To forward a message
You can use the vehicle commands to directly
call up the corresponding menus for the vehicle
settings.
Function
To display ambient light settings
To show display settings
To display assistance settings
To display fragrancing settings
To display energy flow settings
To display ionization settings
To display climate control settings
Voice Control System 221