Vehicle - Mercedes-Benz 2015 M-Class Operator's Manual

Doors
88
Automatic locking feature
To disarm: press and hold button : for
X
about five seconds until a tone sounds.
To arm: press and hold button ; for about
X
five seconds until a tone sounds.
i
If you press one of the two buttons and do
not hear a tone, the relevant setting has
already been selected.
The vehicle is locked automatically when the
ignition is switched on and the wheels are
turning.
You could therefore be locked out if:
the vehicle is being pushed.
R
the vehicle is being towed.
R
the vehicle is on a roller dynamometer.
R
You can also switch the automatic locking
function on and off using the on-board com-
puter ( page 279).
Y
Power closing
Power closing pulls the doors and trunk lid
into their locks automatically even if they are
only partly closed.
To power close a door: push the door into
X
the lock up to the first detent position.
Power closing will pull the door fully closed.
To power close the tailgate: lightly press
X
the tailgate downwards.
Power closing will pull the tailgate fully
closed.
Unlocking the driver's door (mechan-
ical key)
If the vehicle can no longer be unlocked with
the SmartKey, use the mechanical key.
If you use the mechanical key to unlock and
open the driver's door, the anti-theft alarm
system will be triggered (
Take the mechanical key out of the Smart-
X
Key ( page 82).
Y
Insert the mechanical key into the lock of
X
the driver's door as far as it will go.
Turn the mechanical key counter-clockwise
X
to position 1.
The door is unlocked.
Turn the mechanical key back and remove
X
it.
Insert the mechanical key into the Smart-
X
Key.
Locking the vehicle (mechanical key)
If the vehicle can no longer be locked with the
SmartKey, use the mechanical key.
Open the driver's door.
X
Close the front-passenger door, the rear
X
doors and the tailgate.
Press the locking button (
X
Check whether the locking knobs on the
X
front-passenger door and the rear doors
are still visible. Press down the locking
knobs by hand, if necessary.
Close the driver's door.
X
page 77).
Y
page 87).
Y