See also:

Vehicle remote opening
If you have unintentionally locked your vehicle (e.g. the SmartKey is still in the vehicle) and a replacement SmartKey is not available, the vehicle can be opened by a Mercedes-Benz Customer Assis ...

Checking the battery
•► Press the or button. The battery is working properly if battery check lamp 1 lights up briefly If battery check lamp 1 does not light up briefly during the test, the battery is ...

Switching on satellite radio mode
Notes Important notes on registration, see "Registering satellite radio". Switching on satellite radio mode Select Audio in the main function bar by sliding and turning the COMAND ...