2003 Mercedes C-Class Owner's Manual - Page 215
2003 Mercedes C-Class Manual
Page 215 highlights
Controls in detail Useful features See system self-check ( page 210) when the indicator lamp does not light up in red or stays on longer than approximately ten seconds. If the indicator lamp in the Information button ¡ is illuminated continuously and there was no voice connection to the Response Center established, then the Tele Aid system could not initiate an Information call (e.g. the relevant cellular phone network is not available). The message INFO - CALL FAILED appears in the multifunction display. Information calls can be terminated using the ì button on the multifunction steering wheel. ! If the indicator lamps do not start flashing after pressing one of the buttons or remain illuminated (in red) at any time, the Tele Aid system has detected a fault or the service is not currently active, and may not initiate a call. Visit your Mercedes-Benz Center and have the system checked or contact the Response Center at 1-800-756-9018 (in the USA) or 1-888-923-8367 (in Canada) as soon as possible. Upgrade signals The Tele Aid system processes calls using the following priority: Automatic emergency - First priority Manual emergency - Second priority Roadside assistance - Third priority Information - Fourth priority Should a higher priority call be initiated while you are connected, an upgrade (alternating) tone will be heard, and the appropriate indicator lamp will flash. If certain information such as vehicle identification number or customer information is not available, the operator may need to retransmit. During this time you will hear a beep and voice contact will be interrupted. Voice contact will resume once the retransmission is completed. Once a call is concluded, a beep will be heard and the appropriate indicator lamp will stop flashing. The COMAND* system operation will resume. 215