Mercedes-Benz ML320 Cdi Operator's Manual page 117

Controls in detail
Locking and unlocking
Global unlocking
Grasp any outside door handle other
than the driver's outside door handle.
All turn signal lamps flash once. The
locking knobs in the doors move up.
The anti-theft alarm system is dis-
armed.
Global locking
Press the lock button on an outside
door handle ( page 68).
All turn signal lamps flash three times.
The locking knobs in the doors move
down. The anti-theft alarm system is
armed.
116
Restoring to factory setting
Press and hold buttons Œ and ‹
simultaneously for about 5 seconds
until battery check lamp 5
( page 112) flashes twice.
!
If you can no longer lock or unlock the
vehicle with the SmartKey with KEYLESS-GO, 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 with
KEYLESS-GO ( page 116) and replace
them if necessary ( page 480).
Use the mechanical key to unlock the
driver's door ( page 475).
Lock the vehicle as described in the "Practi-
cal hints" section ( page 476).
Have the vehicle battery and the vehicle
battery connections checked ( page 507).
If the SmartKey with KEYLESS-GO is malfunc-
tioning, contact an authorized Mercedes-Benz
Light Truck Center.
Checking the batteries
Press button ‹ or Œ.
Battery check lamp 5 ( page 112)
comes on briefly to indicate that the
SmartKey with KEYLESS-GO batteries
are in order.
i
If battery check lamp 5 ( page 112) does
not come on briefly during check, the SmartKey
with KEYLESS-GO batteries are discharged.
Replace the batteries ( page 480).
You can obtain the required batteries at any
authorized Mercedes-Benz Light Truck Center.
i
If the batteries are checked within signal
range of the vehicle, pressing the
button ‹ or Œ will lock or unlock the
vehicle accordingly.