2001 Mercedes C-Class Owner's Manual - Page 34

Central locking system 4 Radio frequency and infrared remote control The electronic main key has an integrated radio frequency and infrared remote control. Due to the extended operational range of the remote control, it could be possible to unintentionally lock or unlock the vehicle by pressing the transmit button. If one of the transmit buttons is pressed, the battery check lamp lights up briefly - indicating that the batteries are in order. See page 332 for checking batteries. The vehicle doors, trunk and fuel filler flap can be centrally locked and unlocked via remote control. Opening and closing the windows and sliding/pop-up roof can only be done with the infrared portion of the remote control. Aim transmitter eye at a receiver (6 or 7), press and hold transmit button Œ or ‹, see page 29. With vehicle centrally locked, the trunk can also be opened by using the remote control. If the electronic key is inserted in starter switch, the vehicle cannot be locked or unlocked, and the trunk lid cannot be opened with the remote control. Central locking system Instruments and controls Operation Driving Instrument cluster display 25 Practical hints Car care Technical data Index 1 Transmit button ‹ Locking Œ Unlocking Š Opening trunk (if not separately locked) 2 Lamp for battery check (see page 332 for changing batteries if it does not light up briefly) 3 PANIC button 4 Transmitter eye 5 Locking tab for mechanical key 3 2 1 5 P80.35-2032-26