See also:

Activating audio AUX mode
When you connect an external audio source, audio AUX is not selected automatically. Select Audio in the main function bar by sliding and turning the COMAND controller and press to confirm. ...

Tire pressure loss warning system (Canada only)
Important safety notes While the vehicle is in motion, the tire pressure loss warning system monitors the set tire pressure using the rotational speed of the wheels. This enables the system to ...

Charging the battery
WARNING Never charge a battery still installed in the vehicle unless a battery charger unit approved by Mercedes-Benz is being used. Gases may escape during charging and cause explosions tha ...