Page 28 of 480
27 At a glance
Instrument cluster
Item
Page
5
Tachometer with:
133
AHigh beam head-
lamp indicator
129
úEngine malfunction
indicator lamp, USA
only
±Engine malfunction
indicator lamp,
Canada only
335
CRoll bar warning
lamp
339
-Antilock Brake Sys-
tem (ABS) indicator
lamp
333
Item
Page
1Supplemental
Restraint System
(SRS) indicator lamp
341
340
XCombination low tire
pressure/TPMS mal-
function telltale*
342
6
Right multifunction
display with:
Gear selector lever
position
164
Outside temperature
display
134
Program mode
163
7
Fuel gauge with:AFuel reserve warning
lamp
338
Page 36 of 480

35 Getting started
Unlocking
Unlocking with KEYLESS-GO*
With the KEYLESS-GO function, you can
lock and unlock the vehicle without using
the remote control buttons on the
SmartKey and start the engine without in-
serting the SmartKey in the starter switch.
The function of the SmartKey overrules the
KEYLESS-GO function.
Grasp an outside door handle.
All turn signal lamps flash once. The
locking knobs on the doors move up.
The anti-theft alarm system is dis-
armed.
The electro-hydraulic brake system is
activated.If the SmartKey with KEYLESS-GO is inside
the vehicle, pressing the KEYLESS-GO
start/stop button on the gear selector le-
ver corresponds to turning the SmartKey
to the various starter switch positions
(
page 37).
For more information, see “SmartKey with
KEYLESS-GO*” (
page 100).
Warning!
G
When leaving the vehicle, always take the
SmartKey with KEYLESS-GO* with you, and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. Unsupervised use of vehi-
cle equipment may cause an accident
and/or serious personal injury.
iTo unlock the vehicle, the SmartKey
with KEYLESS-GO must be outside the
vehicle, no further than approx. 3 feet
(1 meter) away from the door. iIf the vehicle has been parked for more
than 72 hours, you must pull an outside
door handle in order to activate the
KEYLESS-GO function.
iOpening a door causes the windows on
that side of the car to open slightly.
They will return to the up-position when
the door is closed.
Page 37 of 480

36 Getting startedUnlockingStarter switch positions SmartKey
Starter switch0For removing SmartKey
1Power supply for some electrical con-
sumers, such as seat adjustment
2Ignition (power supply for all electrical
consumers) and driving position
All lamps (except high beam headlamp
indicator lamp and turn signal indicator
lamps unless activated) in the instru-
ment cluster come on. If a lamp in the
instrument cluster fails to come on
when the ignition is switched on, have
it checked and replaced if necessary.If a lamp in the instrument cluster re-
mains on after starting the engine or
comes on while driving, refer to “Lamps
in the instrument cluster”
(
page 332).
3Starting position
Warning!
G
When leaving the vehicle, always remove the
SmartKey or the SmartKey with
KEYLESS-GO* from the starter switch, take
it with you, and lock the vehicle. Do not
leave children unattended in the vehicle, or
with access to an unlocked vehicle. Unsu-
pervised use of vehicle equipment may
cause an accident and/or serious personal
injury.
iWhen you switch on the ignition, the in-
dicator and warning lamps (except high
beam headlamp indicator lamp and
turn signal indicator lamps unless acti-
vated) in the instrument cluster come
on. The indicator and warning lamps
(except high beam headlamp indicator
lamp and turn signal indicator lamps if
activated) should go out when the en-
gine is running. This indicates that the
respective systems are operational.iThe SmartKey can only be removed
from the starter switch with the gear
selector lever in position P.
Page 38 of 480

37 Getting started
Unlocking
SmartKey with KEYLESS-GO*
You can also use the SmartKey with
KEYLESS-GO like a normal SmartKey.KEYLESS-GO start/stop button1USA only
2Canada only
The SmartKey with KEYLESS-GO must be
located in the vehicle.
Make sure the gear selector lever is set
toP.
Do not depress the brake pedal.Position 0
Before you press the KEYLESS-GO
start/stop button, the vehicle’s on-board
electronics have the status0 (as with
SmartKey removed).
Position 1
Press the KEYLESS-GO start/stop but-
ton once.
This supplies power for some electrical
consumers, such as seat adjustment.
!If the SmartKey cannot be turned in the
starter switch, the starter battery may
not be sufficiently charged.
Check the starter battery and
charge it if necessary (
page 413).
Get a jump start (
page 419).
To prevent accelerated battery dis-
charge or a completely discharged bat-
tery, always remove the SmartKey from
the starter switch when the engine is
not in operation.
iIf you now press the KEYLESS-GO
start/stop button
once again, the ignition (position2)
is switched on
twice, the power supply is again
switched off
Page 39 of 480

38 Getting startedUnlockingIgnition (or Position 2)
Press the KEYLESS-GO start/stop but-
ton twice.
This supplies power for all electrical
consumers. All lamps (except high
beam headlamp indicator lamp and
turn signal indicator lamps unless acti-
vated) in the instrument cluster come
on.
For more information, see “SmartKey with
KEYLESS-GO*” (
page 100).
For information on starting the engine us-
ing the KEYLESS-GO start/stop button,
see “Starting with KEYLESS-GO*”
(
page 50).
iIf you now press the KEYLESS-GO
start/stop button once, the power sup-
ply is again switched off.
iWhen you switch on the ignition, the in-
dicator and warning lamps (except high
beam headlamp indicator lamp and
turn signal indicator lamps unless acti-
vated) in the instrument cluster come
on. The indicator and warning lamps
(except high beam headlamp indicator
lamp and turn signal indicator lamps if
activated) should go out when the en-
gine is running. This indicates that the
respective systems are operational.
Page 45 of 480

44 Getting startedAdjusting
Mirrors
Adjust the interior and exterior rear view
mirrors before driving so that you have a
good view of the road and traffic condi-
tions.Interior rear view mirror
Manually adjust the interior rear view
mirror.
For more information, see “Rear view mir-
rors” (
page 177).
Exterior rear view mirrors
iIf the current position for the steering
wheel is in the uppermost tilt position,
the steering wheel will no longer be
able to move upward when the
easy-entry/exit feature is activated.
The adjustment procedure is briefly in-
terrupted when the engine is started.Warning!
G
Let the system complete the adjustment
procedure before setting the vehicle in mo-
tion. All steering wheel adjustment must be
completed before setting the vehicle in mo-
tion. Driving off with the steering wheel still
adjusting could cause the driver to lose con-
trol of the vehicle.
Warning!
G
In case of an accident, liquid electrolyte may
escape the mirror housing if the mirror glass
breaks.
Electrolyte has an irritating effect. Do not al-
low the liquid to come into contact with
eyes, skin, clothing, or respiratory system.
In case it does, immediately flush affected
area with water, and seek medical help if
necessary.!Electrolyte drops coming into contact
with the vehicle paint finish can only be
completely removed while in their liq-
uid state and by applying plenty of wa-
ter.
Warning!
G
Exercise care when using the passenger
side exterior rear view mirror. The mirror
surface is convex (outwardly curved surface
for a wider field of view). Objects in mirror
are closer than they appear. Check your in-
terior rear view mirror or glance over your
shoulder before changing lanes.
Page 50 of 480

49 Getting started
Driving
Starting the engine Automatic transmission
Gearshift pattern for automatic
transmissionP Park position with gear selector lever
lock
R Reverse gear
N Neutral
D Drive position
For more information, see “Automatic
transmission” (
page 162).Starting with the SmartKey
Make sure the gear selector lever is set
to P.
Do not depress the accelerator.
Turn the SmartKey in the starter switch
to position3 and hold until the engine
starts (
page 36).
For information on turning off the engine
with the SmartKey, see “Turning off with
the SmartKey” (
page 60).
Warning!
G
Inhalation of exhaust gas is hazardous to
your health. All exhaust gas contains carbon
monoxide, and inhaling it can cause uncon-
sciousness and possible death.
Do not run the engine in confined areas
(such as a garage) which are not properly
ventilated. If you think that exhaust gas
fumes are entering the vehicle while driving,
have the cause determined and corrected
immediately. If you must drive under these
conditions, drive with at least one window
fully open.
iYou can also use the “touch-start”
function. Turn the SmartKey to
position3 and release it again immedi-
ately. The engine then starts automati-
cally.
Page 51 of 480

50 Getting startedDrivingStarting with KEYLESS-GO*
You can start your vehicle without the
SmartKey in the starter switch using the
KEYLESS-GO start/stop button on the
gear selector lever.KEYLESS-GO start/stop button1USA only
2Canada only
Make sure the gear selector lever is set
to P.
Depress the brake pedal during the
starting procedure. Do not depress ac-
celerator.
The selector lever lock is released.
Press KEYLESS-GO start/stop
button1 once.
The engine starts if the SmartKey with
KEYLESS-GO is in the vehicle.
For information on turning off the engine
with KEYLESS-GO, see “Turning off with
KEYLESS-GO*” (
page 60).
Starting difficulties
If the engine does not start as described,
carry out the following steps:
If you are starting the engine with the
SmartKey: Turn SmartKey in starter
switch to position0 and repeat starting
procedure.
If you are starting the engine with
KEYLESS-GO*: Close any doors that
may be open to allow for better detec-
tion of the SmartKey with
KEYLESS-GO.
Or:
Start the engine with the SmartKey as
radio signals from another source may
be interfering with the SmartKey with
KEYLESS-GO*.
Repeat the starting procedure
(page 49). Remember that extended
starting attempts can drain the battery.
Get a jump start (
page 419).
If the engine does not start after several
starting attempts, there could be a mal-
function in the engine electronics or in the
fuel supply system.
Notify an authorized Mercedes-Benz
Center.