Page 41 of 409
40 Getting startedUnlockingStarter switch positions
Starter switch
0For removing SmartKey
1Power supply for some consumers
2Ignition (power supply for all consum-
ers) and drive position. All lamps (ex-
cept high beam headlamp indicator
lamp and turn signal indicator lamps
unless activated) in the instrument
cluster come on. If a lamp in the instru-
ment 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 remains on after
starting the engine or comes on while
driving, see “Lamps in instrument clus-
ter” (
page 298).
Warning!
G
When leaving the vehicle, always remove the
SmartKey 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. Unsuper-
vised use of vehicle equipment may cause
an accident and/or serious personal injury.
Page 42 of 409

41 Getting started
Unlocking
iWhen you switch on the ignition, the
indicator and warning lamps (except
high beam headlamp indicator lamp
and turn signal indicator lamps unless
activated) in the instrument cluster
come on. The indicator and warning
lamps (except high beam headlamp in-
dicator lamp and turn signal indicator
lamps if activated) should go out when
the engine is running. This indicates
that the respective systems are opera-
tional.
!If the SmartKey is left in the starter
switch position0 for an extended peri-
od of time, it can no longer be turned in
the starter switch.
Remove the SmartKey from the
starter switch and reinsert.
If the SmartKey can still not be turned
in the starter switch, the starter battery
may not be sufficiently charged.
Have the starter battery checked
and charged if necessary
(page 358). Contact an autho-
rized Mercedes-Benz Center.
To prevent accelerated battery
discharge and a possible dead battery,
always remove the SmartKey from the
starter switch when the engine is not in
operation.
Page 50 of 409
49 Getting started
Driving
Starting the engine
Gearshift pattern P Park position with gear selector lever
lock
R Reverse gear
N Neutral
D Drive position
For more information, see “Automatic
transmission” (
page 167).1Cover
2Start button
Make sure the gear selector lever is set
toP.
Do not depress the accelerator.
Switch on the ignition (
page 40).
Lift up cover1.
Press start button2 once.
The engine starts.
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 garage) which are not properly ven-
tilated. If you think that exhaust gas fumes
are entering the vehicle while driving, have
the cause determined and corrected imme-
diately. If you must drive under these condi-
tions, drive only with at least one window
fully open.
Page 51 of 409

50 Getting startedDriving
Close cover1.
For information on turning off the engine,
see “Turning off the engine” (
page 58).Starting difficulties
If the engine does not start as described,
carry out the following steps:
Turn the SmartKey in the starter switch
to position0 and repeat starting
procedure (
page 49).
Remember that extended starting at-
tempts can drain the battery.
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.
Parking brake
1Release button
2Parking brake lever
Warning!
G
Make sure the cover of the start button is
closed after starting the engine. Otherwise
you could be injured on the open cover in an
accident or during driving maneuvers.
Warning!
G
When leaving the vehicle, always remove the
SmartKey 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. Children
could release the parking brake, which
could result in an accident and/or serious
injury.
Page 52 of 409

51 Getting started
Driving
Pull lever2 upwards slightly, press re-
lease knob1 and move the lever
down to the stop.
The warning lamp; (USA only)
or3 (Canada only) in the
instrument cluster goes out.
Driving off
Depress the brake pedal.
The gear selector lever lock is released.
Place the gear selector lever in
positionD orR.
Release the brake pedal.
Carefully depress the accelerator
pedal.
Once the vehicle is in motion, the auto-
matic central locking system engages.
Warning!
G
It is dangerous to shift the gear selector le-
ver out ofP orN if the engine speed is high-
er than idle speed. If your foot is not firmly
on the brake pedal, the vehicle could accel-
erate quickly forward or in reverse. You
could lose control of the vehicle and hit
someone or something. Only shift into gear
when the engine is idling normally and when
your right foot is firmly on the brake pedal.Warning!
G
On slippery road surfaces, never downshift
in order to obtain braking action. This could
result in drive wheel slip and reduced vehi-
cle control. Your vehicle’s ABS will not pre-
vent this type of loss of control.
!In order to avoid damage to the trans-
mission:
Wait for the gear selection process
to complete before setting the vehi-
cle in motion.
Place the gear selector lever in
positionR or P only when the vehi-
cle is stopped.
Page 53 of 409

52 Getting startedDrivingAfter a cold start, the transmission engag-
es at a higher revolution. This allows the
catalytic converter to reach its operating
temperature earlier.
Switching on headlamps
Low beam headlamps
The exterior lamp switch is located on the
dashboard to the left of the steering wheel.Exterior lamp switch1Lights off
2Low beam headlamps on
Turn switch toB.
For more information on headlamps, see
“Lighting” (
page 105).
!If you hear a warning signal and the
message:Release
parking brakeappears in the multifunction display
when driving off, you have forgotten to
release the parking brake.
Release the parking brake.!Do not run cold engine at high engine
speed. Running a cold engine at high
engine speed may shorten the service
life of the engine.
!Simultaneously depressing the acceler-
ator pedal and applying the brake re-
duces engine performance and causes
premature brake and drivetrain wear.iYou can open a locked door from the
inside. Open door only when conditions
are safe to do so.
You can deactivate the automatic lock-
ing using the control system
(page 137).
Page 57 of 409

56 Getting startedDrivingProblems while driving
The engine runs erratically and misfires
An ignition cable may be damaged.
The engine electronics may not be op-
erating properly.
Unburned gasoline may have entered
the catalytic converter and damaged it.
Give very little gas.
Have the problem repaired by an au-
thorized Mercedes-Benz Center as
soon as possible.The coolant temperature is
above 248°F (120°C)
The coolant is too hot and is no longer
cooling the engine.
Stop the vehicle as soon as possible in
a safe location and turn off the engine.
Allow engine and coolant to cool.
Check the coolant level and add cool-
ant if necessary (
page 250).In case of accident
If the vehicle is leaking gasoline:
Do not start the engine under any cir-
cumstances.
Notify local fire and/or police authori-
ties.
If the extent of the damage cannot be de-
termined:
Notify an authorized Mercedes-Benz
Center.
If no damage can be determined on the
major assemblies
fuel system
engine mount:
Start the engine in the usual manner.
Page 58 of 409

57 Getting started
Parking and locking
Parking and locking
You have now completed your first drive.
You have properly stopped and parked
your vehicle. End your drive as follows.
Parking brake
1Parking brake lever
Pull parking brake lever1 up a s m a ny
notches as possible.
When the engine is running, the
warning lamp; (USA only)
or3(Canada only) in the
instrument cluster will be illuminated.
Warning!
G
With the engine not running, there is no
power assistance for the brake and steering
system. In this case, it is important to keep
in mind that a considerably higher degree of
effort is necessary to brake and steer the
vehicle.
Warning!
G
Do not park this vehicle in areas where com-
bustible materials such as grass, hay or
leaves can come into contact with the hot
exhaust system, as these materials could be
ignited and cause a vehicle fire.
To reduce the risk of personal injury as a re-
sult of vehicle movement, before turning off
the engine and leaving the vehicle always:
Keep right foot on brake pedal.
Pull the parking brake lever up as many
notches as possible.
Move the gear selector lever to
positionP.
Slowly release brake pedal.
When parked on an incline, turn front
wheels towards the road curb.
Turn the SmartKey in the starter switch
to position0 and remove the SmartKey
from the starter switch.
Take the SmartKey and lock the vehicle
when leaving.