See also:

Call priority
When service calls are active, e.g. Roadside Assistance or MB Info calls, an emergency call can still be initiated. In this case, an emergency call will take priority and override all other ac ...

Cleaning the display
•► Before cleaning the display, make sure that it is switched off and has cooled down. •► Clean the display surface using a commercially-available microfiber cloth and TFT/LCD displ ...

Changing the battery
You require a CR 2025 3 V cell battery. - Take the mechanical key out of the SmartKey. - Press mechanical key 2 into the opening in the SmartKey in the direction of the arrow until battery t ...