2007 Mercedes C-Class Owner's Manual - Page 91

Safety and Security Anti-theft systems Arming the alarm system The indicator lamp is in the center console. Lock the vehicle with the SmartKey. The turn signal lamps flash three times and an acoustic signal sounds three times, to indicate that the alarm system is armed. Indicator lamp 1 begins to flash after approximately 30 seconds after arming the alarm system. Disarming the alarm system Unlock the vehicle with the SmartKey. The turn signal lamps flash once and an acoustic signal sounds once, to indicate that the alarm system is disarmed. i If the turn signal lamps do not flash three times, one of the following elements may not be properly closed: i The alarm system will rearm automatically after approximately 40 seconds if neither a door nor the trunk lid was opened. Canceling the alarm To cancel the alarm: Press the Œ or ‹ button on the SmartKey. or Insert the SmartKey in the starter switch. 1 Indicator lamp a door the trunk Close the respective element and lock the vehicle again. 90