2003 Mercedes CLK-Class Owner's Manual - Page 86

Controls in detail Locking and unlocking ! If you can no longer lock or unlock the vehicle with the key, then either the batteries in the SmartKey are discharged or the key is malfunctioning. Check the batteries in the key and replace them if necessary ( page 312). or Use the mechanical key to unlock the doors ( page 310) and trunk ( page 311) as required. Lock the vehicle using the mechanical key ( page 311). If the key is malfunctioning, contact an authorized Mercedes-Benz Center. Checking the batteries Press button ‹ or Œ. Battery check lamp 5 lights up briefly to indicate that the key batteries are in order. Unlocking the trunk lid You can unlock the trunk separately. Press and hold button Š until trunk unlocks. ! The trunk lid swings open upwards automatically. Always make sure that there is sufficient overhead clearance. ! If battery check lamp 5 does not light up briefly during check, then the key batteries are discharged. Replace the batteries ( page 312). You can obtain the required batteries at any authorized Mercedes-Benz Center. i If the vehicle was previously centrally locked with the SmartKey, the trunk lid will lock automatically after closing it. The turn signals will flash three times to confirm locking. If the trunk lid was previously separately locked ( page 94), the trunk lid will remain locked. 86