2003 Mercedes C-Class Owner's Manual - Page 212

Controls in detail Useful features 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 Initiating an emergency call manually Warning! G 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. If the indicator lamp in the SOS button is illuminated continuously and there was no voice connection to the Response Center established, then the Tele Aid system could not initiate an emergency call (e.g. the relevant cellular phone network is not available). The message EMERGENCY CALL - CALL FAILED appears in the multifunction display for approx. ten seconds. Should this occur, assistance must be summoned by other means. 1 Cover 2 SOS button Briefly press on cover 1. The cover will open. Press SOS button 2 briefly. The indicator lamp in the SOS button 2 will flash until the emergency call is concluded. Wait for a voice connection to the Response Center. Close cover 1 after the emergency call is concluded. 212