2005 Mercedes C-Class Owner's Manual - Page 252

Controls in detail Useful features Emergency calls An emergency call is initiated automatically following an accident in which the emergency tensioning devices (ETDs) or air bags deploy. An emergency call can also be initiated manually by opening the cover next to the interior rear view mirror labeled SOS, then briefly pressing the button located under the cover. See ( page 251) for instructions on initiating an emergency call manually. Once the emergency call is in progress, the indicator lamp in the SOS button will begin to flash. The message Connecting call appears in the multifunction display and the audio system is muted. When the connection is established, the message Call connected appears in the multifunction display. All information relevant to the emergency, such as the location of the vehicle (determined by the GPS satellite location system), vehicle model, identification number and color are generated. A voice connection between the Response Center and the occupants of the vehicle will be established automatically soon after the emergency call has been initiated. The Response Center will attempt to determine more precisely the nature of the emergency provided they can speak to an occupant of the vehicle. The Tele Aid system is available if it has been activated and is operational. Activation requires a subscription for monitoring services, connection and cellular air time the relevant cellular phone network and GPS signals are available and pass the information on to the Response Center Warning! G If the indicator lamps in the SOS button, in the Roadside Assistance button and/or in the Information button remain illuminated constantly in red and/or the message Tele Aid malfunction. Drive to workshop is displayed in the multifunction display after the system self-check, a malfunction in the system has been detected. If a malfunction is indicated as outlined above, the system may not operate as expected. Have the system checked at the nearest Mercedes-Benz Center as soon as possible. i Location of the vehicle on a map is only possible if the vehicle is able to receive signals from the GPS satellite network and pass the information on to the Response Center. 250