Mercedes-Benz M-Class Owner's Manual page 81

Doors
78
the doors from inside the vehicle. Deactivate
the interior motion sensor (
you lock the vehicle. The doors can then be
opened from the inside after the vehicle has
been locked from the outside.
You can only open the rear doors from inside
the vehicle if they are not secured by the
child-proof locks (
Pull door handle ;.
X
If the door is locked, locking knob : pops
up. The door is unlocked and can be
opened.
Centrally locking and unlocking the
vehicle from the inside
You can centrally lock or unlock the vehicle
from the inside.
The central locking/unlocking button does
not lock or unlock the fuel filler flap.
The buttons are located on both front doors.
i
You cannot unlock the vehicle centrally
from the inside if the vehicle has been
locked with the key or KEYLESS-GO.
i
It is only possible to lock the vehicle cen-
trally if the front-passenger door is closed.
page 69) before
Y
page 60).
Y
To unlock: press button :.
X
To lock: press button ;.
X
Automatic locking mechanism
The vehicle is locked automatically when the
ignition is switched on and the wheels are
turning.
You could therefore be locked out when:
the vehicle is being pushed.
R
the vehicle is being towed.
R
the vehicle is being tested on a dynamom-
R
eter.
To deactivate: press and hold button :
X
for about five seconds until a tone sounds.
To activate: press and hold button ; for
X
about 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.