2004 Mercedes CLK-Class Owner's Manual - Page 93

Controls in detail Locking and unlocking ! If you can no longer lock or unlock the vehicle with the SmartKey with KEYLESS-GO, then the batteries in the SmartKey are discharged, the SmartKey with KEYLESS-GO is malfunctioning or the vehicle battery is drained. Check the batteries in the SmartKey and replace them if necessary ( page 345). Use the mechanical key to unlock the doors ( page 343) and the trunk ( page 344). Have the vehicle battery and the battery connections checked. Use the mechanical key to lock the doors and the trunk (if applicable) ( page 344). If the SmartKey with KEYLESS-GO is malfunctioning, contact an authorized Mercedes-Benz Center. or Vehicles with trunk lid opening/closing system*, press the KEYLESS-GO locking/closing switch at the trunk lid ( page 102). The vehicle locks. The turn signals blinks three times to confirm locking. Locking the vehicle Checking the batteries Press button ‹ or Œ. Battery check lamp 5 comes on briefly to indicate that the SmartKey batteries are in order. ! If battery check lamp 5 does not come on briefly during check, then the SmartKey batteries are discharged. 1 lock button at trunk Press the lock button 1. or Press the lock button at the driver's door ( page 55). Replace the batteries ( page 345). You can obtain the required batteries at any authorized Mercedes-Benz Center. i If the batteries are checked within signal range of the vehicle, pressing the ‹ or Œ button will lock or unlock the vehicle accordingly. 93