See also:

General information
Portable electronic devices in the vehicle may seriously impair radio reception. ...

Service messages
Information on the type of service and service intervals (see separate Service Booklet). You can obtain further information from an authorized Mercedes-Benz Center or at http://www.mbusa.com (USA ...

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 ...