2003 Mercedes C-Class Owner's Manual - Page 79

Safety and Security Anti-theft systems Anti-theft systems Immobilizer The immobilizer prevents unauthorized persons from starting your vehicle. Activating Removing the key from the starter switch activates the immobilizer. Deactivating Inserting the key in the starter switch deactivates the immobilizer. Anti-theft alarm system Once the alarm system has been armed, a visual and audible alarm is triggered when someone opens a door the trunk the hood The alarm system will also be triggered when someone attempts to raise the vehicle the vehicle is opened with the mechanical key Arming the alarm system The alarm system is armed after locking the vehicle with the remote control. The turn signal lamps blink three times to indicate that the alarm system is activated. A red indicator lamp in the switch for the tow-away alarm ( page 80) will blink after approximately ten seconds when the alarm system is completely armed. i If the turn signal lamps do not blink three times, the tow-away sensor* is malfunctioning or one of the following elements may not be properly closed: a door the trunk lid the hood Close the respective element and lock the vehicle again. i In case the engine cannot be started (yet the vehicle's battery is charged), the system is not operational. Contact an authorized Mercedes-Benz Center or call 1-800-FOR-MERCedes (in the USA), or 1-800-387-0100 (in Canada). i If the alarm stays on for more than 20 seconds, an emergency call is initiated automatically by the Tele Aid system* ( page 209) provided Tele Aid service was subscribed to and properly activated, and that necessary cellular service and GPS coverage are available. 79