X
To unlock the vehicle: touch the inner
surface of the door handle.
X
To lock the vehicle: touch sensor
surface
:
.
X
Convenience closing feature: touch
recessed sensor surface
;
for an
extended period (
Y
page 85).
If you pull on the handle of the trunk lid, only
the trunk of the vehicle is unlocked.
Changing the settings of the locking
system
You can change the setting of the locking
system in such a way that only the driver's
door and the fuel filler flap are unlocked. This
is useful if you frequently travel on your own.
X
To change the setting: press and hold
down the
%
and
&
buttons
simultaneously for approximately six
seconds until the battery check lamp
(
Y
page 74) flashes twice.
i
If the setting of the locking system is
changed within the signal range of the
vehicle, pressing the
&
or
%
button
locks or unlocks the vehicle.
The SmartKey now functions as follows:
X
To unlock the driver's door: press the
%
button once.
X
To unlock centrally: press the
%
button twice.
X
To lock centrally: press the
&
button.
The KEYLESS-GO function is changed as
follows:
X
To unlock the driver's door: touch the
inner surface of the door handle on the
driver's door.
X
To unlock centrally: touch the inner
surface of the door handle on the front-
passenger door or the rear door.
X
To lock centrally: touch the outer sensor
surface on one of the door handles.
Restoring the factory settings
X
Press the
%
and
&
buttons
simultaneously for approximately six
seconds until the battery check lamp
flashes twice.
Mechanical key
General notes
If the vehicle can no longer be locked or
unlocked with the SmartKey, use the
mechanical key.
If you use the mechanical key to unlock and
open the driver's door or the trunk lid, the
anti-theft alarm system will be triggered
(
Y
page 67).
There are several ways to turn off the alarm:
X
To turn the alarm off with the
SmartKey: press the
%
or
&
button
on the SmartKey.
or
X
Insert the SmartKey into the ignition lock.
or
X
To deactivate the alarm with KEYLESS-
GO: press the Start/Stop button in the
ignition lock. The SmartKey must be in the
vehicle.
or
X
Lock or unlock the vehicle using KEYLESS-
GO. The SmartKey must be outside the
vehicle.
If you unlock the vehicle using the mechanical
key, the fuel filler flap will not be unlocked
automatically.
X
To unlock the fuel filler flap: insert the
SmartKey in the ignition lock.
SmartKey
73
Opening/closing
Z
Summary of Contents for 2012C-Class Sedan
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