Mercedes-Benz E CLASS 2020 Operator's Manual page 255

Radio voice commands
Voice command
Station <Name>
<Frequency>
Next station
Previous station
Save station
Show station list
Read out station list
Traffic information on
Traffic information off
Radio info on
Radio info off
Function
To call up receivable or saved stations
To enter a frequency directly
To switch to the next available station
To switch to the previous station
To save a station in the station list
To display the names of all receivable stations
To listen to the names of all receivable stations
To switch the traffic information service on/off
To switch information about the current station on/off
Voice Control System 253