See also:

Restoring the factory settings
Press the and buttons simultaneously for approximately six seconds until the battery check lamp flashes twice. ...

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 ...

Entering a point of interest using the phone number search
This function gives you access to all points of interest that have a phone number. Select By Telephone Number and press to confirm. You will see a list of phone numbers. Enter the phone numb ...