Page 38 of 474

36 Getting startedUnlockingPosition 0
Before you press the KEYLESS-GO 
start/stop button1, the vehicle’s 
on-board electronics have status 0 (as with 
SmartKey removed).
Position 1
Press KEYLESS-GO start/stop 
button1 once.
This supplies power to some electrical 
consumers, such as seat adjustment.Ignition (or position 2)
Press KEYLESS-GO start/stop 
button1 twice.
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 instrument cluster” (
page 338).
For information on starting the engine us-
ing the KEYLESS-GO start/stop button, 
see “Starting with KEYLESS-GO*” 
(
page 47).
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
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. This indicates that the respective 
systems are operational. The indicator 
and warning lamps (except high beam 
headlamp indicator lamp and turn sig-
nal indicator lamps unless activated) 
should go out when the engine is run-
ning. 
     
        
        Page 42 of 474

40 Getting startedAdjustingSteering wheel Steering wheel adjustment
The stalk for steering wheel adjustment is 
located on the steering column (lower left).
1Adjusting steering column, in or out
2Adjusting steering column, up or down
Switch on ignition (
page 34).
or
Open the driver’s door.Adjusting steering column in or out
Move stalk forward or back in the direc-
tion of arrow1 until a comfortable 
steering wheel position is reached with 
your arms slightly bent at the elbow.
Adjusting steering column up or down
Move the stalk up or down in the direc-
tion of arrow2. 
Make sure your legs can move freely 
and all the displays (incl. malfunction 
and indicator lamps) on the instrument 
cluster are clearly visible.
For more information, see “Heated steer-
ing wheel*” (
page 253).
Warning!
G
Do not adjust the steering wheel while driv-
ing. Adjusting the steering wheel while driv-
ing could cause the driver to lose control of 
the vehicle.
When leaving the vehicle, always remove the 
SmartKey or SmartKey with KEYLESS-GO* 
from the starter switch, take it with you, and 
lock the vehicle.
Even with the SmartKey or SmartKey with 
KEYLESS-GO* removed from the starter 
switch or the SmartKey with KEYLESS-GO* 
removed from the vehicle, the steering 
wheel adjustment feature can be operated 
when the driver’s door is open. Therefore, 
do not leave children unattended in the ve-
hicle, or with access to an unlocked vehicle. 
Unsupervised use of vehicle equipment may 
cause an accident and/or serious personal 
injury.
iThe memory function (
page 128) lets 
you store settings for the steering 
wheel together with the settings for the 
exterior rear view mirrors and the seat 
position. 
     
        
        Page 50 of 474

48 Getting startedDrivingParking brake 
1Parking brake pedal
2Parking brake release handle
Release the parking brake by pulling 
handle2.
The indicator lamp ; (USA only) or 
3 (Canada only) in the instrument 
cluster goes out.Driving
Depress the brake pedal.
Move gear selector lever to positionD 
orR.
Warning!
G
When leaving the vehicle, always remove the 
SmartKey or SmartKey with KEYLESS-GO* 
from the starter switch, take it with you, and 
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an 
unlocked vehicle. Children could release the 
parking brake, which could result in an acci-
dent and/or serious injury.
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. 
     
        
        Page 58 of 474

56 Getting startedParking and lockingParking brake
1Parking brake
2Release handle
Step firmly on parking brake1.
When the engine is running, the 
indicator lamp ; (USA only) or 
3 (Canada only) in the instrument 
cluster illuminates.
Warning!
G
When leaving the vehicle, always remove the 
SmartKey or SmartKey with KEYLESS-GO* 
from the starter switch, take it with you, and 
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an 
unlocked vehicle. Children could release the 
parking brake and/or move the gear selec-
tor lever from positionP, either of which 
could result in an accident and/or serious 
injury.
Warning!
G
Getting out of your vehicle with the gear se-
lector lever not fully engaged in positionP is 
dangerous. Also, when parked on an incline, 
positionP alone may not prevent your vehi-
cle from moving, possibly hitting people or 
objects.
Always set the parking brake in addition to 
shifting to positionP (
page 177). 
When parked on an incline, turn front wheels 
towards the road curb. 
     
        
        Page 62 of 474

60 Safety and SecurityOccupant safetyIn this section you will learn the most im-
portant facts about the restraint systems 
of the vehicle.
The restraint systems are:
Seat belts
Emergency tensioning device
Air bags
Child seats
Child seat recognition
Lower anchors and tethers for children 
(LATCH)
Preventive occupant safety (PRE-SAFE)
As independent systems, their protective 
effects work in conjunction with each oth-
er.The 1 indicator lamp in the instrument 
cluster comes on
for about four seconds when you turn 
the SmartKey in the starter switch to 
position1 or press the KEYLESS-GO* 
start/stop button (
page 35) once. It 
then goes out briefly, comes on again 
and remains lit until you start the en-
gine.
for about four seconds when you start 
the engine by turning the SmartKey or 
pressing the KEYLESS-GO* start/stop 
button.The restraint systems are fully operational 
if the 1 indicator lamp is not lit when 
the engine is running.
A malfunction in the system has been de-
tected if the1 indicator lamp:
fails to extinguish after approximately 
four seconds.
does not come on at all.
comes on after the engine was started 
or while driving.
For safety reasons, we strongly recom-
mend that you visit an authorized 
Mercedes-Benz Center immediately to 
have the system checked.
For more information, see “Practical hints” 
(e page 337).
iFor information on infants and children 
traveling with you in the vehicle and re-
straint systems for infants and chil-
dren, see “Children in the vehicle” 
(page 71).
iThe 1 indicator lamp remains lit if 
the SmartKey is turned to position 2 
and left there or the KEYLESS-GO* 
start/stop button is pressed twice. The 
indicator lamp will go out when you 
start the engine. 
     
        
        Page 83 of 474

81 Safety and Security
Driving safety systems
The - indicator lamp in the instrument 
cluster (
page 24) comes on when you 
switch on the ignition (
page 34). It goes 
out when the engine is running.
Braking
At the instant one of the wheels is about to 
lock up, a slight pulsation can be felt in the 
brake pedal, indicating that the ABS is in 
the regulating mode. 
Keep firm and steady pressure on the 
brake pedal while experiencing the pul-
sation.
Continuous, steady brake pedal pressure 
yields the advantages provided by the ABS, 
namely braking power and the ability to 
steer the vehicle.
The pulsating brake pedal can be an indica-
tion of hazardous road conditions and 
functions as a reminder to take extra care 
while driving.Emergency brake maneuver
Keep continuous full pressure on the 
brake pedal.
For more information, see “Practical hints” 
(
page 337).
BAS
The Brake Assist System (BAS) operates in 
emergency situations. If you apply the 
brakes very quickly, the BAS automatically 
provides full brake boost, thereby poten-
tially reducing the braking distance.
Apply continuous full braking pressure 
until the emergency braking situation is 
over.
The ABS will prevent the wheels from 
locking.
When you release the brake pedal, the 
brakes function again as normal. The BAS 
is then deactivated.
Warning!
G
The ABS cannot prevent the natural laws of 
physics from acting on the vehicle, nor can 
it increase braking or steering efficiency be-
yond that afforded by the condition of the 
vehicle brakes and tires or the traction af-
forded. The ABS cannot prevent accidents, 
including those resulting from excessive 
speed in turns, following another vehicle too 
closely, or hydroplaning. Only a safe, atten-
tive, and skillful driver can prevent acci-
dents. The capabilities of an ABS equipped 
vehicle must never be exploited in a reck-
less or dangerous manner which could jeop-
ardize the user’s safety or the safety of 
others.
Warning!
G
If the BAS is malfunctioning, the brake sys-
tem is still functioning normally, but without 
the additional brake boost available that 
BAS would normally provide in an emergen-
cy braking maneuver. Therefore, the braking 
distance may increase. 
     
        
        Page 93 of 474
91 Controls in detail
Locking and unlocking
Seats
Memory function
Lighting
Instrument cluster
Control system
Automatic transmission
Good visibility
Automatic climate control
Power windows
Power tilt/sliding sunroof
Driving systems
Loading
Useful features 
     
        
        Page 137 of 474
135 Controls in detail
Lighting
Combination switch
The combination switch is located on the 
left side of the steering column.
1High beam
2High beam flasherSwitching on high beams
Turn exterior lamp switch to 
positionB or toU 
(page 131).
Push the combination switch in 
direction1.
The high beam indicatorA on the 
instrument cluster comes on 
(page 24).High beam flasher
Pull the combination switch briefly in 
direction2.