Mercedes-Benz 2006 C 230 Sport Operator's Manual page 102

Global locking
Press button ‹.
With the trunk and all doors closed, all
turn signal lamps flash three times. The
locking knobs in the doors move down.
The anti-theft alarm system* is armed.
Restoring to factory setting
Press and hold buttons Œ and ‹
simultaneously for about 6 seconds un-
til battery check lamp 5 flashes twice.
The SmartKey is set to factory setting
again.
!
If you can no longer lock or unlock the
vehicle with the SmartKey, then either
the batteries in the SmartKey are dis-
charged, the SmartKey is malfunction-
ing or the vehicle battery is drained.
Check the batteries in the
SmartKey ( page 101) and
replace them if necessary
( page 396).
Use the mechanical key to unlock
the driver's door ( page 389) and
the trunk ( page 390).
Use the mechanical key to lock the
driver's door ( page 390) and the
trunk ( page 106).
Have the vehicle battery and the
battery connections checked
( page 412).
If the SmartKey is malfunctioning,
contact an authorized Mercedes-Benz
Center.
Controls in detail
Locking and unlocking
Checking the batteries
Press button ‹ or Œ.
Battery check lamp 5 comes on
briefly to indicate that the SmartKey
batteries are in order.
i
If battery check lamp 5 does not
come on briefly during check, then the
SmartKey batteries are discharged.
Replace the batteries ( page 396).
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.
101