
Changing the settings of the locking
system
You can change the settings 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 the %
and & buttons simultaneously for
approximately six seconds until the battery
check lamp 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: touch the
inner surface of the door handle on the
driver's door.XTo unlock centrally: touch the inner
surface of the front-passenger door handle.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 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 71).
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.
GWarning!
Batteries are toxic and contain caustic
substances. For this reason, keep batteries
out of the reach of children.
If a battery has been swallowed, visit a doctor
immediately.
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Problems with the SmartKeyProblemPossible causes/consequences and M SolutionsYou cannot lock/
unlock the vehicle
using the SmartKey.The SmartKey battery is discharged or nearly discharged.XPoint the tip of the SmartKey at the driver's door handle from a
distance of approximately 1.5 ft (50 cm) and try to unlock or
lock the vehicle again.
If this does not work:
XLock or unlock the vehicle using the mechanical key
( Y page 77).XCheck the key battery and replace it if necessary ( Y page 78).The SmartKey is faulty.XLock the vehicle as described in the "Locking the vehicle
(mechanical key)" section ( Y page 82) or unlock it using the
mechanical key ( Y page 77).XHave the SmartKey checked at a qualified specialist workshop.You can no longer
lock/unlock the
vehicle using KEYLESS-
GO.KEYLESS-GO is in standby mode because the vehicle has not been
unlocked for an extended period.XPull the door handle and then turn the SmartKey to position 2
in the ignition lock.There is a malfunction with KEYLESS-GO.XLock/unlock the vehicle using the remote control function of
the SmartKey. Point the tip of the SmartKey at the driver's door
handle from close range and press the %/& button.XHave the SmartKey checked at a qualified specialist workshop.There is interference from a powerful source of radio waves.XLock/unlock the vehicle using the remote control function of
the SmartKey. Point the tip of the SmartKey at the driver's door
handle from close range and press the %/& button.You have lost a
SmartKey.XHave the SmartKey canceled at an authorized Mercedes-Benz
Center.XReport the loss immediately to the vehicle insurers.XIf necessary, have the locks changed as well.You have lost the
mechanical key.XReport the loss immediately to the vehicle insurers.XIf necessary, have the locks changed as well.SmartKey79Opening and closingBA 207 USA, CA Edition B 2011; 1; 3, en-USd2sboikeVersion: 3.0.3.62010-05-20T10:38:09+02:00 - Seite 79Z

ProblemPossible causes/consequences and M SolutionsThe SmartKey cannot
be turned in the ignition
lock.The SmartKey has been in position 0 for a considerable time.XRemove the SmartKey and re-insert it into the ignition lock.XCheck the starter battery and charge it if necessary
( Y page 293).XStart the engine.The on-board voltage is too low.XSwitch off non-essential consumers, e.g. seat heating or interior
lighting, and try to turn the SmartKey again.
If this does not work:
XCheck the starter battery and charge it if necessary
( Y page 293).
or
XJump-start the vehicle ( Y page 296).
or
XConsult a qualified specialist workshop.Doors
Important safety notes
GWarning!
When leaving the vehicle, always remove the
SmartKey from the starter switch. Always
take the SmartKey with you and lock the
vehicle. Do not leave children unattended in
the vehicle, even if they are secured in a child
restraint system, or with access to an
unlocked vehicle. A child's unsupervised
access to a vehicle could result in an accident
and/or serious personal injury. The children
could
R injure themselves on parts of the vehicle
R be seriously or fatally injured through
excessive exposure to extreme heat or cold
R injure themselves or cause an accident with
vehicle equipment that can be operated
even if the SmartKey is removed from the
starter switch or removed from the vehicle,
such as seat adjustment, steering wheel
adjustment, or the memory function
If children open a door, they could injure other
persons or get out of the vehicle and injure
themselves or be injured by following 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 the child could be burned by 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
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Unlocking and opening doors from
the inside
You can open a door from inside the vehicle
even if it has been locked.
Only open the door if traffic conditions allow
you to do so.
If the vehicle has previously been locked with
the SmartKey or with KEYLESS-GO, opening
a door from the inside will trigger the anti-
theft alarm system. Switch off the alarm
(Y page 71).
XPull door handle ;.
If the door is locked, locking knob : pops
up. The door is unlocked and can be
opened.
iWhen a door is opened, the side window
on that side opens slightly. When the door
is closed, the side window closes again.
! The side windows will not open/close if
the battery is discharged or if the side
windows have iced up. It will then not be
possible to close the door. Do not attempt
to force the door closed. You could
otherwise damage the door or the side
window.
Centrally locking and unlocking the
vehicle from the inside
The locking or unlocking buttons of the
central locking do not lock or unlock the fuel
filler flap.
XTo unlock: press button :.XTo lock: press button ;.
The vehicle locks when all the doors are
closed.
The vehicle locks when all front-passenger
doors are closed.
If the vehicle has been locked centrally with
the SmartKey or with KEYLESS-GO, it does
not unlock if you use the unlocking button of
the central locking.
Automatic locking
iThe vehicle locks automatically when the
ignition is switched on and the wheels of
the vehicle are moving at a speed of more
than 9 mph(15 km/h). You may therefore
lock yourself out if the vehicle is being
pushed, towed, or located on a test rig.
XTo deactivate: press and hold button :
for about five seconds until a tone sounds.
XTo activate: press and hold button ; for
about five seconds until a tone sounds.
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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:
Rinjure themselves on vehicle parts
Rbe seriously or fatally injured by extreme
heat or cold
Rinjure 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
Rstrong braking maneuvers
Rsudden changes of direction
Ran 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.
For the trunk lid to be opened fully, there must
be a minimum clearance from floor to ceiling
of 5.58 ft (1.70 m).
The trunk lid can be:
Ropened and closed manually from outside
Ropened automatically from outside
Ropened automatically from inside
Opening and closing manually
Opening
You can only open the trunk lid after
unlocking it first.
You can only unlock the trunk lid when the
vehicle is stationary.
XPress the % button on the SmartKey.XPull handle :.XRaise the trunk lid.
Closing
GWarning
To prevent possible personal injury, always
keep hands and fingers away from the trunk
opening when closing the trunk lid. Be
especially careful when small children are
around.
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metal parts, for example, could become very
hot, and the child could be burned by 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!
When opening or closing the windows, make
sure there is no danger of anyone being
harmed by the opening/closing procedure.
The door windows are equipped with the
express operation and automatic reversal
function. If in express operation mode a door
window encounters an obstruction that
blocks its path, the automatic reversal
function will stop the door window and open
it slightly.
The windows operate differently when the
switch is pulled and held. See the "Closing
when a window is blocked" section in this
chapter for details.
The closing of the door windows can be
immediately halted by releasing the switch or,
if the switch was pulled past the resistance
point and released, by either pressing or
pulling the respective switch.
The closing of the rear side windows can be
immediately halted by releasing the switch.
Activate the override switch when children
are riding in the back seats of the vehicle. The
children may otherwise injure themselves,
e.g. by becoming trapped in the window
opening.
GWarning!
Do not keep any part of your body up against
the window pane when opening a window. The
downward motion of the pane may pull that
part of your body down between the window
pane and the door frame and trap it there. If
there is a risk of entrapment, release the
switch and pull it to close the window.
Opening and closing the side
windows
:Front left;Front right=Rear right?Rear left
The switches for all side windows are located
on the driver's door. There is also a switch on
the front-passenger door as well as on the
doors in the rear compartment on the left and
right-hand sides for the respective side
window.
i Operation of the side windows in the rear
compartment is not possible when the
override switch for the side windows is
activated.
XTurn the key to position 2 in the ignition
lock.
i You can continue to operate the side
windows after you switch off the engine.
This function remains active for five
minutes or until one of the doors is opened.
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Vehicles with KEYLESS-GO:
RRelease the sensor surface on the outside
door handle to stop the closing procedure.
RImmediately pull on the same outside door
handle and hold firmly. The windows and
the panorama roof with power tilt/sliding
panel will open for as long as the door
handle is held but the door not opened.
Using the SmartKey
iThe key must be near the handle of the
driver's door.
XPoint the tip of the key at the driver's door
handle.
XPress and hold the & button until the
side windows and the panorama roof with
power tilt/sliding panel are fully closed.
XMake sure that all the side windows and the
panorama roof with power tilt/sliding
panel are closed.
On vehicles with a panorama roof with power
tilt/sliding panel:
XPress and hold the & button again until
the roller sunblind of the panorama roof
with power tilt/sliding panel closes.
XTo interrupt the convenience closing
procedure: release the & button.
Using KEYLESS-GO
The SmartKey with KEYLESS-GO must be
outside the vehicle but no more than 3 ft (1 m)
away from a door.
XClose all the doors.XTouch the sensor surface on door
handle : until the side windows and the
panorama roof with power tilt/sliding
panel are fully closed.
iMake sure you only touch sensor
surface :.
XMake sure that all the side windows and the
panorama roof with power tilt/sliding
panel are closed.
On vehicles with a panorama roof with power
tilt/sliding panel:
XTouch sensor surface : on the door
handle again until the roller sunblind of the
panorama roof with power tilt/sliding
panel closes.
XTo interrupt convenience closing:
release sensor surface : on the door
handle.
Resetting the side windows
You must reset all the side windows if the side
window cannot be closed fully.
XClose all the doors.XTurn the key to position 2 in the ignition
lock.
XPull on the corresponding switch on the
door control panel until the side window is
completely closed (Y page 86).
XHold the switch for an additional second.88Side windowsOpening and closing
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If the side window opens again slightly:XPull the corresponding switch again
immediately and hold it for approximately
one second.
Problems with the side windows
Problem: a side window cannot be closed
because an object is obstructing the side
window.
XRemove the object(s).XClose the side window.
Problem: a side window cannot be closed,
and you cannot see the cause.
GWarning!
Closing the side windows with increased force
or without the anti-entrapment feature could
lead to serious or even fatal injury. Make sure
that nobody can become trapped when
closing the side windows.
If a side window is obstructed during closing
and reopens again slightly:
XImmediately after the window blocks, pull
on the corresponding switch again until the
side window has closed.
The side window is closed with increased
force.
If a side window is obstructed again during
closing and reopens again slightly:
XImmediately after the window blocks, pull
on the corresponding switch again until the
side window has closed.
The side window is closed without the anti-
entrapment feature.GWarning!
Pulling and holding the switch to close the
window immediately after it had been blocked
two times will cause the window to close
without the anti-entrapment feature for as
long as you hold the switch.
Soft top (Cabriolet)
Important safety notes
You can open or close the soft top either
when the vehicle is stationary or when driving
up to a speed of 40 km/h.
If there is a strong head wind, it may not be
possible to close the soft top fully. In this
case, reduce speed or stop in order to close
the soft top fully.
For safety reasons, Mercedes-Benz
recommends that you only open or close the
soft top when the vehicle is stationary.
GRisk of accident and injury
Only drive with the soft top fully open or
closed.
If the soft top does not open or close fully, the
soft-top hydraulics are depressurized and the
soft top is lowered:
R after about seven minutes if the ignition is
switched on
R immediately if the ignition is switched off
A warning tone sounds shortly beforehand.
The Convertible Top Opening/Closing
Not Finished message appears in the
multifunction display.
Lock the soft top again before driving on.
Otherwise, the unlocked soft top could open
during the journey and cause you to lose
control of your vehicle. You or other persons
could be injured as a result.
! Never sit on the soft-top compartment
cover and do not store any heavy objects
on it. You will otherwise damage the soft
top and soft-top compartment cover of the
vehicle.
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