
X To unlock the vehicle: pull the door
handle.XTo lock the vehicle: touch sensor
surface :.
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.
XTo change the setting: press and hold
down the % and & buttons
simultaneously for approximately six
seconds until the battery check lamp
( Y page 80) flashes twice.
The SmartKey now functions as follows:
XTo unlock the driver's door: press the
% button once.XTo unlock centrally: press the %
button twice.XTo lock centrally: press the & button.
The KEYLESS-GO function is changed as
follows:
XTo unlock the driver's door : pull the door
handle on the driver's door.XTo unlock centrally: pull the door handle
on the front-passenger door or on the rear
doors.XTo lock centrally: touch sensor
surface : on one of the door handles.
Restoring the factory settings
XPress the % and & buttons
simultaneously for approximately six
seconds until the battery check lamp
flashes twice.Mechanical key
General notes
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 73).
There are several ways to turn off the alarm:
XPress the % or & button on the
SmartKey.
or
XInsert the SmartKey into the ignition lock.
or
XPress the Start/Stop button in the ignition
lock. The SmartKey must be in the vehicle.
or
XLock or unlock the vehicle using KEYLESS-
GO. The SmartKey must be outside the
vehicle.
Removing the mechanical key
XPush release catch : in the direction of
the arrow and at the same time, remove
mechanical key ; from the SmartKey.
SmartKey battery
Important safety notes
It is advisable to have batteries replaced at a
qualified specialist workshop, e.g. at an
authorized Mercedes-Benz Center.
SmartKey79Opening and closingZ

Unlocking and opening the doors
from the inside
You can open a door from inside the vehicle
even if it has been locked, unless the child-
proof locks have been activated (Y page 65).
Open the door only when the traffic
conditions permit.
If the vehicle has been opened with the
SmartKey or KEYLESS-GO key, opening from
inside triggers the anti-theft alarm system.
Switch off the alarm (Y page 73).
XPull door handle ;.
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. This feature may be useful if,
for example, you wish to unlock the front-
passenger door from the inside or lock the
vehicle before you pull away.
The central locking/unlocking button does
not lock or unlock the fuel filler flap.
XTo lock: press button ;.
The vehicle locks itself when the front-
passenger door is closed.
XTo unlock: press button :.
You can open a front door from inside the
vehicle even if it has been locked. Open the
door only when the traffic conditions permit.
If the vehicle has been locked with the locking
button for the central locking function:
Rand the SmartKey has been reset to the
factory settings, the complete vehicle is
unlocked when a front door is opened from
the inside
Rand the SmartKey has been set to an
individual setting, only the front door that
is opened from the inside is unlocked
If the vehicle has been locked centrally with
the SmartKey or with KEYLESS-GO, it is not
unlocked if you use the unlocking button for
the central locking system.
Automatic locking
The vehicle locks automatically when the
ignition is switched on and the wheels of the
vehicle are moving at a speed above 9 mph
(15 km/h). Therefore, there is a risk of being
locked out when the vehicle is being pushed,
towed or tested on a dynamometer.
You can switch off the automatic locking
function via COMAND (Y page 261).
Doors83Opening and closingZ

iMake sure that you have the SmartKey on
your person and that it has not been left in
the vehicle.XClose the front-passenger door.XMake sure that the doors and the trunk are
locked.
i If you lock the vehicle as described above,
the fuel filler flap is not locked. The anti-
theft alarm system is not primed.
Trunk
Important safety notes
Do not leave the SmartKey in the trunk. You
could otherwise lock yourself out.
GWarning
When leaving the vehicle, always remove the
SmartKey from the ignition lock. Always take
the SmartKey with you and lock the vehicle.
Do not leave children unsupervised in the
vehicle, even if they are secured in a child
restraint system, and do not give them access
to an unlocked vehicle. A child's unsupervised
access to a vehicle could result in an accident
and/or serious personal injury. They could:
R injure themselves on vehicle parts
R be seriously or fatally injured by extreme
heat or cold
R injure themselves or have an accident with
vehicle equipment that may still be in
operation even after the SmartKey has
been removed from the ignition, such as the
seat adjustment, steering wheel
adjustment or memory function.
If children open a door, they could cause
severe or even fatal injury to other persons; if
they get out of the vehicle, they could injure
themselves when doing so or be seriously or
even fatally injured by any passing traffic.
Do not expose the child restraint system to
direct sunlight. The child restraint system's
metal parts, for example, could become very
hot, and a child could be burned on these
parts.GWarning!
Do not carry heavy or hard objects in the
passenger compartment or trunk unless they
are firmly secured in place.
Unsecured or improperly positioned cargo
increases a child's risk of injury in the event
of
R strong braking maneuvers
R sudden changes of direction
R an accident
GWarning
Make sure the trunk lid is closed when the
engine is running and while driving. Among
other dangers, deadly carbon monoxide (CO)
gases may enter the vehicle interior resulting
in unconsciousness and death.
! The trunk lid swings upwards when
opened. Therefore, make sure that there is
sufficient clearance above the trunk lid.
You can limit the opening angle of the trunk
lid. This could be useful, for example, if there
is insufficient space above the trunk lid. You
can switch the trunk lid opening height
restriction function on or off via COMAND
( Y page 261).
For the trunk lid to be opened fully, there must
be a minimum clearance from floor to ceiling
of 5.90 ft (1.80 m).
The trunk lid can be:
R opened and closed manually from outside
R opened and closed automatically from
outside
R opened and closed automatically from
inside
R locked separately
R unlocked with the mechanical key
R opened using the emergency release
button inside the trunk
Trunk85Opening and closingZ

Stolen Vehicle Recovery Services
If your vehicle has been stolen:
XContact the police.
The police will issue an incident report. This
report has a number.XThis number will be forwarded to the
Response Center together with your PIN.
The Response Center will then attempt to
covertly contact the mbrace system. The
Response Center contacts you and the
local law enforcement authority if the
vehicle is located. However, only the law
enforcement authority is informed of the
location of the vehicle.
i If the anti-theft alarm system remains
activated for longer than thirty seconds,
mbrace is automatically connected to the
Customer Assistance Center.
Garage door opener
Important safety notes
The remote control integrated in the rear-view
mirror allows you to operate up to three
different door and gate systems.
i Certain garage door openers are not
compatible with the integrated remote
control. If you experience problems when
programming the integrated remote
control, contact an authorized Mercedes-
Benz Center or call the following service
hotlines:
R USA: Mercedes-Benz Customer
Assistance Center under
1-800-FOR-MERCedes
R Canada: Customer Service under
1-800-387-0100
GWarning
Before programming the integrated remote
control to a garage door opener or gate
operator, make sure people and objects are
out of the way of the device to prevent
potential harm or damage. When
programming a garage door opener, the door
moves up or down. When programming a gate
operator, the gate opens or closes.
Do not use the integrated remote control with
any garage door opener that lacks safety stop
and reverse features as required by U.S.
federal safety standards (this includes any
garage door opener model manufactured
before April 1, 1982). A garage door that
cannot detect an object - signaling the door
to stop and reverse - does not meet current
U.S. federal safety standards.
When programming a garage door opener,
park vehicle outside the garage.
Do not run the engine while programming the
integrated remote control. Inhalation of
exhaust gas is hazardous to your health. All
exhaust gas contains carbon monoxide (CO),
and inhaling it can cause unconsciousness
and possible death. All exhaust gas contains
carbon monoxide (CO), and inhaling it can
cause unconsciousness and possible death.
i USA only:
This device complies with part 15 of the
FCC requirements. Operation is subject to
the following two conditions:
1. The device must not cause harmful
interference.
2. The device must withstand any
interference received, including
interference that may cause undesired
operation.
Unauthorized modification of this device
could void the device's operating permit.
i Canada only:
This device complies with the RSS-210
requirements of Industry Canada.
Operation is subject to the following two
conditions:
1. The device must not cause harmful
interference.
2. The device must withstand any
interference received, includingFeatures439Loading, stowing and featuresZ