2010 Mercedes E-Class Owner's Manual - Page 75

Locking and unlocking RThe 73 vehicle could be inadvertently unlocked if the SmartKey is within 3 ft (1 m) of the vehicle and - X Global locking: Touch outside of a door handle :. an outside door handle is splashed with water or you attempt to clean an outside door handle Selective setting If you frequently travel alone, you may wish to reprogram the SmartKey. Grasping the driver's outside door handle will then only unlock the driver's door and the fuel filler flap. X Switching on/off: Press and hold buttons % and & simultaneously for approximately 6 seconds until the battery check lamp (Y page 73) flashes twice. KEYLESS-GO will then function as follows: X Unlocking driver's door and fuel filler flap: Grasp the driver's outside door handle. X Global unlocking: Grasp the outside door handle on the passenger side. X Global locking: Touch outside of a door handle :. RRemember that the engine can be started by anyone with a SmartKey that is left inside the vehicle. Possibility 1 (One SmartKey in the vehicle, one SmartKey outside the vehicle): If you leave the SmartKey behind when exiting and locking the vehicle, no message appears in the multifunction display. Possibility 2 (One SmartKey in the vehicle, no SmartKey outside the vehicle): When exiting and trying to lock the vehicle, the message Key Detected in Vehicle appears in the multifunction display. The vehicle will not be locked. Checking SmartKey batteries Factory setting X Global unlocking: Grasp an outside door handle. Unless you open a door or the trunk within approximately 40 seconds after unlocking the vehicle: RThe RThe vehicle will be locked again. anti-theft alarm system will be rearmed. X Press button & or % on the SmartKey. Battery check lamp : comes on briefly to indicate that the SmartKey batteries are in order. If the battery check lamp does not come on briefly during check, the SmartKey batteries are discharged. X Replace the batteries (Y page 274). Z Controls in detail -