2005 Mercedes S-Class Owner's Manual - Page 101
2005 Mercedes S-Class Manual
Page 101 highlights
Controls in detail Locking and unlocking If the SmartKey with KEYLESS-GO is removed from the vehicle while the ignition is switched on (e.g. if passenger exits the vehicle with the SmartKey with KEYLESS-GO), the message KEY NOT RECOGNIZED Factory setting Global unlocking Grasp the outside door handle. All turn signal lamps flash once. The locking knob in the doors move up. The anti-theft alarm system is disarmed. i The vehicle could inadvertently be unlocked if the SmartKey with KEYLESS-GO is within 3 ft. (1 m) of the vehicle and: the outside door handle is splashed with water, or you attempt to clean the outside door handle. Global locking Press lock button at the outside door handle ( page 58) or trunk lid ( page 101). All turn signal lamps flash three times. The locking knobs in the doors move down. The anti-theft alarm system is armed. will appear in the multifunction display while driving off. Find the SmartKey or change its present location immediately (e.g. place it on the front passenger seat or insert it in shirt pocket). Remember that the engine can be started by anyone with a SmartKey with KEYLESS-GO that is left inside the vehicle. If you leave the SmartKey with KEYLESS-GO behind when exiting and locking the vehicle, the message KEY STILL IN VEHICLE i If the vehicle has been parked for more than 72 hours, you must pull the outside door handle in order to activate the KEYLESS-GO function. The vehicle will lock again automatically and reactivate the anti-theft alarm system within approximately 40 seconds of unlocking if: neither door nor trunk is opened the central locking switch is not activated. will appear in the multifunction display. 99