Mercedes-Benz C-Sedan 2015 Owners Manual - Manual (Page 90)

Meanwhile, the fuel filler flap will not be
locked or unlocked.
You cannot unlock the vehicle centrally from
the inside if the vehicle has been locked with
the SmartKey or KEYLESS-GO.
The doors can be opened from the inside. You
can only open the rear doors from inside the
vehicle if they are not secured by the child-
proof locks (
Y
page 65).
If the vehicle has been locked with the Smart-
Key or with KEYLESS-GO, opening a door from
the inside will trigger the anti-theft alarm sys-
tem. Switch off the alarm (
Y
page 76).
If a locked door is opened from the inside, the
previous unlock status of the vehicle will be
taken into consideration if:
R the vehicle was locked using the locking
button for the central locking, or
R if the vehicle was locked automatically
The vehicle will be fully unlocked if it had pre-
viously been fully unlocked. If only the driver's
door had been previously unlocked, only the
door which has been opened from the inside
is unlocked.
Automatic locking feature
X
To deactivate: press and hold button :
for approximately five seconds until a tone
sounds.
X To activate: press and hold button ; for
approximately five seconds until a tone
sounds.
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 on a roller dynamometer.
i You can also activate and deactivate the
automatic locking function via COMAND or
Audio 20 (see the separate operating
instructions).
Unlocking the driver's door (mechan-
ical key)
If the vehicle can no longer be locked or
unlocked with the SmartKey or KEYLESS-GO,
use the mechanical key.
X
Take the mechanical key out of the Smart-
Key (
Y
page 83).
Vehicles with KEYLESS-GO:
X Insert the tip of the mechanical key into the
slit on the cover of the driver's door lock
and turn it until the cover is released.
X
Insert the mechanical key into the lock of
the driver's door as far as it will go.
X
Turn the mechanical key counter-clockwise
as far as it will go to position 1.
The locking knob pops up and the door
unlocks.
88
Doors
Opening
and
closing