2001 Mercedes C-Class Owner's Manual - Page 36

Locking and unlocking with remote control Unlocking: Press transmit button Œ. All turn signal lamps blink once to indicate that the vehicle is unlocked. The remote control can be programmed for two kinds of unlocking modes (see below): Selective unlocking mode - Press transmit button Œ once to unlock driver's door and fuel filler flap. Press transmit button Œ twice to unlock all doors, fuel filler flap, and trunk. Global unlocking mode - Press transmit button Œ once to unlock all doors, fuel filler flap, and trunk. Notes: If the trunk was previously locked separately, it will remain locked, see page 35. The presently active unlocking mode (selective or global) can only be determined by unlocking the vehicle with the remote control (see below for changing mode). If within 40 seconds of unlocking with the remote control, neither door or trunk is opened, the electronic key is not inserted in the starter switch, or the central locking switch is not activated, the vehicle will automatically lock. Locking: Press transmit button ‹ once. All turn signal lamps blink three times to indicate that the vehicle is locked. If they do not blink three times, a door or trunk is not properly closed. Note: If the vehicle cannot be locked or unlocked by pressing the transmit button, then it may be necessary to change the batteries in the electronic main key (if ok, battery check lamp in electronic main key will light briefly when pressing transmit button) or to synchronize the remote control, see pages 332 and 334. Choosing global or selective mode on remote control Press and hold transmit buttons ‹ and Œ simultaneously for five seconds to reprogram the remote control. Battery check lamp will blink two times indicating the completed mode change. 27 Central locking system Instruments and controls Operation Driving Instrument cluster display Practical hints Car care Technical data Index