Requirements: 
 Multimedia system: System → COMAND Touch Connecting and authorizing a new device 
 Authorizing a connected device 
 De-authorizing the device 
 Activating/deactivating child safety lock Multimedia system: System → Parental Control Locking an external device 
 System language Notes on the system language This function allows you to determine the language for the menu displays and the navigation announcements. The selected language affects the characters available for entry. The navigation announcements are not available in all languages. If a language is not available, the navigation announcements will be in English. Setting the system language Multimedia system: System → Language 
 Setting the distance unit Multimedia system: → System → Units 
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Mercedes-Benz C-Class (W205) 2015 - 2021 Owners Manual > Driving: Switching the power supply or ignition on
without starting the engine
    WARNING Risk of accident and injury due to children left unattended in the vehicle If children are left unattended in the vehicle, they could: open doors, thereby endangering other persons or road users. get out of the vehicle and be hit by oncoming traffic. operate vehicle equipment and become tra ...