2006 Mercedes CLK-Class Owner's Manual - Page 100

Controls in detail Locking and unlocking Restoring to factory setting Press and hold buttons Œ and ‹ simultaneously for about 6 seconds until battery check lamp 5 flashes twice. If the SmartKey is malfunctioning, contact an authorized Mercedes-Benz Center. Checking the batteries Press button ‹ or Œ. Battery check lamp 5 comes on briefly to indicate that the SmartKey batteries are in order. Unlocking and opening the trunk You can unlock and open the trunk separately. A minimum height clearance of 5.41 ft (1.65 m) is required to open the trunk lid. Press and hold button Š until trunk unlocks and begins to open. ! If you can no longer lock or unlock the vehicle with the SmartKey, then the batteries in the SmartKey are discharged, the SmartKey is malfunctioning or the vehicle battery is drained. Check the batteries in the SmartKey ( page 99) and replace them if necessary ( page 435). Use the mechanical key to unlock the driver's door ( page 419) and the trunk ( page 420). Use the mechanical key to lock the driver's door ( page 420) and the trunk ( page 116). Have the vehicle battery and the battery connections checked ( page 453). ! The trunk lid swings open upwards automatically. Always make sure there is sufficient overhead clearance. Vehicles with trunk opening/closing system*: To stop the opening procedure, press button Š. The trunk lid stops moving. ! If battery check lamp 5 does not come on briefly during check, then the SmartKey batteries are discharged. Replace the batteries ( page 435). You can obtain the required batteries at any authorized Mercedes-Benz Center. i If the trunk does not open, it is still locked separately ( page 116). The trunk can also be opened from its inside in an emergency, see "Trunk emergency release" ( page 115). i If the batteries are checked within signal range of the vehicle, pressing the ‹ or Œ button will lock or unlock the vehicle accordingly. 99