62 Getting startedParking and locking
Exit the vehicle and close all doors and
the trunk.
Locking with the SmartKey
After exiting the vehicle, press lock
button‹ on the SmartKey
(page 36).
With the trunk and all doors closed:
All turn signal lamps flash three
times.
An acoustic signal sounds three
times.
For more information, see “Factory
setting” (
page 108).
The locking knobs in the doors
move down.
The anti-theft alarm system is
armed.
For more information, see “Locking and
unlocking” (
page 102).
Locking with KEYLESS-GO*
1Lock button
After exiting the vehicle, press lock
button1 at the outside door handle or
on the trunk lid.
With the trunk and all doors closed:
All turn signal lamps flash three
times.
An acoustic signal sounds three
times.
For more information, see “Factory
setting” (
page 108).
The locking knobs in the doors
move down.
The anti-theft alarm system is
armed.
For more information, see “Locking and
unlocking” (
page 102).
i
If you hear a warning signal you have forgot-
ten to switch off the headlamps before opening
the driver’s door.
In addition the message
Switch off lights
appears in the multifunction display.
Switch off the headlamps.
72 Safety and SecurityOccupant safetyWarning!
G
If the 75 indicator lamp illumi-
nates when an adult or someone larger than
a small individual is in the front passenger
seat, have the front passenger re-position
himself or herself in the seat until the
75 indicator lamp goes out, or
check whether objects are caught under or
around the seat.
More information about air bag display mes-
sages (
page 362).
In the event of a collision, the air bag control
unit will not allow front passenger front
air bag deployment when the OCS classified
the front passenger seat occupant as being
up to or less than the weight of a typical
12-month-old child in a standard child re-
straint or if the front passenger seat is
sensed as being empty.
When the OCS senses that the front passen-
ger seat occupant is classified as being up
to or less than the weight of a typical
12-month-old child in a standard child re-
straint, the 75 indicator lamp
will illuminate when the engine is started
and remain illuminated, indicating that the
front passenger front air bag is deactivated.
When the OCS senses that the front passen-
ger seat is classified as being empty, the
75 indicator lamp will illumi-
nate when the engine is started and remain
illuminated, indicating that the front passen-
ger front air bag is deactivated.
When the OCS senses that the front passen-
ger seat occupant is classified as being
heavier than the weight of a typical
12-month-old child seated in a standard
child restraint or as being a small individual
(such as a young teenager or a small adult),
the 75 indicator lamp will illu-
minate for approximately 6 seconds when
the engine is started and then, depending on
occupant weight sensor readings from the
seat, remain illuminated or go out. With the
75 indicator lamp illuminated,
the front passenger front air bag is deacti-
vated. With the 75 indicator
lamp out, the front passenger front air bag is
activated.
When the OCS senses that the front passen-
ger seat occupant is classified as an adult or
someone larger than a small individual, the
75 indicator lamp will illumi-
nate for approximately 6 seconds when the
engine is started and then go out, indicating
that the front passenger front air bag is acti-
vated.
107 Controls in detail
Locking and unlocking
Important notes on using KEYLESS-GO
You can also use the SmartKey with
KEYLESS-GO like a normal SmartKey
(page 102).
You can combine KEYLESS-GO func-
tions with normal SmartKey functions
(e.g. unlocking with KEYLESS-GO and
locking with button ‹).
Always carry the SmartKey with
KEYLESS-GO with you.
Never store the SmartKey with
KEYLESS-GO together with:
Electronic items such as a cellular
phone or another SmartKey with
KEYLESS-GO
Metallic objects such as coins or
metal foil
Doing so could impair the function of
the KEYLESS-GO system.
To lock or unlock the vehicle, the
SmartKey with KEYLESS-GO must be
located outside the vehicle within ap-
proximately 3 ft (1 m) of a door or the
trunk lid.
In order to start the engine with the
SmartKey with KEYLESS-GO:
The SmartKey with KEYLESS-GO
must be located in the vehicle.
The brake pedal must be firmly de-
pressed. Do not depress the accel-
erator.
If the SmartKey with KEYLESS-GO is
positioned farther away from the vehi-
cle, the system may no longer recog-
nize the SmartKey with KEYLESS-GO.
The vehicle cannot be locked or the
engine started via the KEYLESS-GO
system.
If the SmartKey with KEYLESS-GO is re-
moved from the vehicle (e.g. if passen-
ger exits the vehicle with the SmartKey
with KEYLESS-GO)
when pressing the KEYLESS-GO
start/stop button or trying to lock
the vehicle with the outside door
handle the message
Key not rec-
ognized
appears in the multifunc-
tion display
with the engine running, the mes-
sage
Key not recognized
appears
in the multifunction display while
driving off.
Find the SmartKey with KEYLESS-GO or
change its present location immediate-
ly (e.g. place it on the front passenger
seat or insert it in shirt pocket).
If you have started the engine with the
KEYLESS-GO start/stop button, you
can turn it off again with:
the KEYLESS-GO start/stop button
the SmartKey with KEYLESS-GO in-
serted in the starter switch, when
the automatic transmission is in
positionP
108 Controls in detailLocking and unlocking
Remember that the engine can be
started by anyone with a SmartKey
with KEYLESS-GO that is left inside the
vehicle.
Possibility 1: (One SmartKey with
KEYLESS-GO in the vehicle, one
SmartKey with KEYLESS-GO outside
the vehicle):
If you leave the SmartKey with
KEYLESS-GO behind when exiting and
locking the vehicle, no message
appears in the multifunction display.
Possibility 2: (One SmartKey with
KEYLESS-GO in the vehicle, no
SmartKey with KEYLESS-GO outside
the vehicle):
When exiting and trying to lock the ve-
hicle, the message
Key still in ve-
hicle
appears in the multifunction
display. The vehicle will not be locked.Factory setting
Global unlocking
Pull an outside door handle.
All turn signal lamps flash once.
An acoustic signal sounds once.
The locking knobs in the doors
move up.
The anti-theft alarm system is dis-
armed.
The vehicle will lock again automatically
and rearm the anti-theft alarm system
within approximately 40 seconds if:
neither a door nor the trunk is opened
the central locking switch is not acti-
vatedGlobal locking
Press lock button on an outside door
handle (
page 62).
With the trunk and all doors closed:
All turn signal lamps flash three
times.
An acoustic signal sounds three
times.
The locking knobs in the doors
move down.
The anti-theft alarm system is
armed.
i
When unlocking or locking the vehicle with
the SmartKey or with the KEYLESS-GO function
an acoustic signal sounds. The acoustic signal is
activated at the factory. If you wish to deactivate
the feature, or adjust its signal volume, contact
an authorized Mercedes-Benz Center.
111 Controls in detail
Locking and unlocking
Opening the doors from the inside
You can open a locked door from the in-
side. Open door only when conditions are
safe to do so.
1Locking knob
2Inside door handleFront doors
Pull on door handle2 on the respec-
tive front door to open door.
If door was locked, locking knob1 will
move up.
Rear doors
Pull up locking knob1 on the
respective rear door to unlock door.
Pull on door handle2 on the
respective rear door to open door.
i
If the vehicle has previously been locked
with the SmartKey or KEYLESS-GO*, opening a
door from the inside will trigger the anti-theft
alarm system.
To cancel the alarm, do one of the following:
Press button Œ or ‹ on the SmartKey
or SmartKey with KEYLESS-GO*.
Insert the SmartKey or SmartKey with
KEYLESS-GO* in the starter switch.
In vehicles with KEYLESS-GO*
Press the KEYLESS-GO* start/stop button
(page 39).
The SmartKey with KEYLESS-GO* must be
inside the vehicle.
Pull an outside door handle.
The SmartKey with KEYLESS-GO* must be
within 3 ft (1 m) of the vehicle.
i
When you open a door, the side window on
that side lowers slightly. Once you close the
door, the window moves up again.
i
If you hear a warning signal you have forgot-
ten to switch off the headlamps before opening
the driver’s door.
In addition the message
Switch off lights
appears in the multifunction display.
Switch off the headlamps.
128 Controls in detailLightingFor information on how to switch on the
headlamps and use the turn signals, see
“Switching on headlamps” (
page 55)
and see “Turn signals” (
page 55).
Exterior lamp switchExterior lamp switch
i
If you drive in countries where vehicles drive
on the other side of the road than the country
where the vehicle is registered, you must have
the headlamps modified for symmetrical low
beams. Relevant information can be obtained at
your authorized Mercedes-Benz Center.
i
Vehicles equipped with active Bi-Xenon*
headlamps: The active Bi-Xenon headlamps
monitor your steering angle and driving speed,
then automatically shift their beams to either
side to better follow the curvature of the road
ahead, increasing usable illumination over con-
ventional headlamps.
1‚
Standing lamps, left (turn left two
stops)
2ˆ
Standing lamps, right (turn left
one stop)
3M
Off
Daytime running lamp mode
(page 130)
4U
Automatic headlamp mode
Daytime running lamp mode
(page 130)
5C
Parking lamps (also side marker
lamps, tail lamps, license plate
lamps, instrument panel lamps)
6B
Low beam headlamps or high
beam headlamps when the com-
bination switch is pushed for-
ward. The tail lamps, license
plate lamps, side marker lamps,
parking lamps and instrument
panel lamps also come on.
7‡
Front fog lamps
8†
Rear fog lamp
i
If you hear a warning signal you have forgot-
ten to switch off the headlamps before opening
the driver’s door.
In addition the message
Switch off lights
appears in the multifunction display.
Switch off the headlamps.
138 Controls in detailInstrument clusterFor a full view illustration of the instrument
cluster, see “At a glance” (
page 26).
1Reset button
The instrument cluster is activated when
you
open a door
switch on the ignition
press the reset button1
switch on the exterior lamps
You can modify the instrument cluster set-
tings in the instrument cluster submenu of
the control system (
page 157).Adjusting instrument cluster
illumination
Use the reset button (
page 138) to ad-
just the illumination brightness for the in-
strument cluster.To brighten illumination
Turn the reset button (
page 138)
clockwise.
The instrument cluster illumination will
brighten.
To dim illumination
Turn the reset button (
page 138)
counterclockwise.
The instrument cluster illumination will
dim.
Warning!
G
No messages will be displayed if either the
instrument cluster or the multifunction dis-
play is inoperative.
As a result, you will not be able to see infor-
mation about your driving conditions, such
as speed or outside temperature, warn-
ing/indicator lamps, malfunction/warning
messages or the failure of any systems.
Driving characteristics may be impaired.
If you must continue to drive, please do so
with added caution. Visit an authorized
Mercedes-Benz Center as soon as possible.
i
The instrument cluster illumination is
dimmed or brightened automatically to suit am-
bient light conditions.
The instrument cluster illumination will also be
adjusted automatically when you switch on the
vehicle’s exterior lamps.
139 Controls in detail
Instrument cluster
Coolant temperature indicator
Resetting trip odometer
Make sure you are viewing the trip odome-
ter display (
page 141).
If it is not displayed, press the è or
ÿ repeatedly until the trip odome-
ter appears.
Press and hold the reset button
(page 138) until the trip odometer is
reset.
Tachometer
The red marking on the tachometer de-
notes excessive engine speed.
To help protect the engine, the fuel supply
is interrupted if the engine is operated
within the red marking.
Warning!
G
Driving when your engine is overheated
can cause some fluids which may have
leaked into the engine compartment to
catch fire. You could be seriously
burned.
Steam from an overheated engine can
cause serious burns and can occur just
by opening the hood. Stay away from
the engine if you see or hear steam com-
ing from it.
Stop the vehicle in a safe location away from
other traffic. Turn off the engine, get out of
the vehicle and do not stand near the vehicle
until the engine has cooled down.
!
Excessive coolant temperature triggers the
coolant temperature warning lamp (
page 347)
and a warning in the multifunction display
(
page 374).
The engine should not be operated with the cool-
ant temperature above 248°F (120°C). Doing so
may cause serious engine damage which is not
covered by the Mercedes-Benz Limited Warran-
ty.
i
During severe operating conditions, e.g.
stop-and-go traffic, the coolant temperature may
rise close to 248°F (120°C).
!
Avoid driving at excessive engine speeds, as
it may result in serious engine damage that is not
covered by the Mercedes-Benz Limited Warran-
ty.