2004 Mercedes C-Class Owner's Manual - Page 83

Controls in detail Locking and unlocking ! To prevent possible malfunction, avoid exposing the SmartKey to high levels of electromagnetic radiation. Factory setting Global unlocking Press button Œ. All turn signal lamps flash once. The locking knobs in the doors move up. The vehicle will lock again automatically within approximately 40 seconds of unlocking if: neither door nor trunk is opened the SmartKey is not inserted in the starter switch the central locking switch is not activated Global locking Press button ‹. All turn signal lamps flash three times. The locking knobs in the doors move down. Selective setting If you frequently travel alone, you may wish to reprogram the SmartKey so that pressing Œ only unlocks the driver's door and the fuel filler flap. Press and hold buttons Œ and ‹ simultaneously for about five seconds until battery check lamp 5 flashes twice. The SmartKey will then function as follows: Unlocking driver's door and fuel filler flap Press button Œ once. Global unlocking Press button Œ twice. Global locking Press button ‹. Restoring to factory setting Press and hold buttons Œ and ‹ simultaneously for about six seconds until battery check lamp 5 flashes twice. Warning! G When leaving the vehicle, always remove the SmartKey from the starter switch, take it with you and lock the vehicle. Do not leave children unattended in the vehicle, or with access to an unlocked vehicle. It is possible for children to open a locked door from the inside, which could result in an accident and/or serious injury. 83