Mercedes-Benz 2012 A Class - Manual (Page 83)

You can only open the rear doors from inside
the vehicle if they are not secured by the
child-proof locks (
Y page 60).
If the vehicle has been locked using the lock-
ing button for the central locking, or has been
locked automatically, and a door is opened
from the inside:
R
the vehicle will be fully unlocked if it had
previously been fully unlocked
R
only the door which has been opened form
the inside is unlocked if only the driver's
door had been previously unlocked
Automatic locking feature
X To deactivate: press and hold button :
for about five seconds until a tone sounds.
X To activate: press and hold button ; for
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.
The vehicle is locked automatically when the
ignition is switched on and the wheels are
turning.
You could therefore be locked out if:
R
the vehicle is being pushed.
R
the vehicle is being towed.
R
the vehicle is being tested on a dynamom-
eter.
You can also switch the automatic locking
function on and off using the on-board com-
puter (
Y page 223).
Unlocking the driver's door (emer-
gency key element)
If the vehicle can no longer be unlocked with
the key, use the emergency key element.
If you use the emergency key element to
unlock and open the driver's door, the anti-
theft alarm system will be triggered
(
Y page 69).
X Take the emergency key element out of the
key (
Y page 75).
X Insert the emergency key element into the
lock of the driver's door as far as it will go.
X Turn the emergency key element anti-
clockwise to position 1.
The door is unlocked.
i On right-hand-drive vehicles, turn the
emergency key element clockwise.
X Turn the emergency key element back and
remove it.
X Insert the emergency key element into the
key.
Locking the vehicle (emergency key
element)
If the vehicle can no longer be locked with the
key, use the emergency key element.
X Open the driver's door.
X Close the front-passenger door, the rear
doors and the tailgate.
X Press the locking button ( Y page 80).
X Check whether the locking knobs on the
front-passenger door and the rear doors
Doors
81
Opening and closing
Z