Locking; Unlocking - Mercedes-Benz M-Class Operator's Manual

To unlock centrally: press button =.
X
If you do not open the vehicle within
approximately 40 seconds of unlocking:
the vehicle is locked again.
R
the theft deterrent locking system is
R
armed again.
To lock centrally: press button :.
X
The SmartKey centrally locks/unlocks:
the doors
R
the tailgate
R
the fuel filler flap
R
The turn signals flash once when unlocking
and three times when locking.
You can also set an audible signal to confirm
that the vehicle has been locked. The audible
signal can be activated and deactivated using
the on-board computer (
When it is dark, the surround lighting also
comes on if it is activated in the on-board
computer ( page 275).
Y
KEYLESS-GO
General notes
Bear in mind that the engine can be started
by any of the vehicle occupants if there is a
KEYLESS-GO key in the vehicle.
Locking/unlocking centrally
You can start, lock or unlock the vehicle using
KEYLESS-GO. To do this, you only need carry
the SmartKey with you. You can combine the
functions of KEYLESS-GO with those of a
conventional SmartKey. Unlock the vehicle
by using KEYLESS-GO, for instance, and lock
it using the & button on the SmartKey.
When locking or unlocking with KEYLESS-GO,
the distance between the key and the
corresponding door handle must not be
greater than 3 ft (1 m).
page 276).
Y
KEYLESS-GO checks whether a valid
SmartKey is in the vehicle by periodically
establishing a radio connection between the
vehicle and the SmartKey. This happens:
when the external door handles are
R
touched
when starting the engine
R
while the vehicle is in motion
R
To unlock the vehicle: touch the inner
X
surface of the door handle.
To lock the vehicle: touch sensor
X
surface :.
Convenience closing feature: touch
X
recessed sensor surface ; for an
extended period.
Further information on the convenience
closing feature ( page 95).
Y
If you pull on the handle of the tailgate, only
the cargo compartment of the vehicle is
unlocked.
Changing the settings of the locking
system
You can change the settings of the locking
system. This means that only the driver's door
and the fuel filler flap are unlocked when the
vehicle is unlocked. This is useful if you
frequently travel on your own.
To change the setting: press and hold
X
down the % and & buttons
simultaneously for approximately six
SmartKey
81
Z