Page 51 of 474

49 Getting started
Driving
Release the brake pedal.
Carefully depress the accelerator 
pedal.Once the vehicle is in motion, the automat-
ic central locking system engages and the 
locking knobs drop down.
After a cold start, the automatic transmis-
sion shifts at a higher engine revolution. 
This allows the catalytic converter to reach 
its operating temperature earlier.
For more information, see “Driving instruc-
tions” (
page 273).
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 damaging 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 only when the vehicle is 
stopped.
!If you hear a warning signal and a mes-
sage appears in the multifunction dis-
play when driving off, you have 
forgotten to release the parking brake.
Release the parking brake.!Do not run cold engine at high engine 
speeds. Running a cold engine at high 
engine speeds 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 doors only when condi-
tions are safe to do so.
You can deactivate the automatic lock-
ing using the control system 
(page 168). 
     
        
        Page 55 of 474

53 Getting started
Driving
Intermittent wiping
Set the wiper switch to position I.
Single wipe
Press the combination switch briefly in 
direction of arrow1.
The windshield wipers wipe one time 
without washer fluid.
Wiping with windshield washer fluid
Press switch in the direction of 
arrow1 past the resistance point.
The windshield wiper operates with 
washer fluid.
For information on filling up the washer 
reservoir, see “Windshield washer system 
and headlamp cleaning system*” 
(
page 295).iIntermittent wiping is interrupted when 
the vehicle is at a standstill and a front 
door is opened.
!If anything blocks the windshield wip-
ers (leaves, snow, etc.), switch them off 
immediately.
For safety reasons, 
turn off the engine by turning 
the SmartKey to position0 and 
withdraw SmartKey from starter 
switch
or
turn off the engine by pressing 
the KEYLESS-GO* start/stop 
button (
page 35) and open 
the driver’s door (with the driv-
er’s door open, starter switch is 
in position0, same as with 
SmartKey removed from starter 
switch)
before attempting to remove any 
blockage.
Remove blockage.
Turn the windshield wipers on 
again.
If windshield wipers fail to function at 
all in switch positionI,
set the combination switch to the 
next highest wiper speed
have the windshield wipers 
checked at the nearest authorized 
Mercedes-Benz Center 
     
        
        Page 59 of 474

57 Getting started
Parking and locking
Switching off headlamps
Turn the exterior lamp switch toM.
For more information, see “Lighting” 
(
page 131).
Turning off the engine 
Place the gear selector lever in 
positionP.
Turning off with the SmartKey
Turn the SmartKey in the starter switch 
(page 34) to position0 and remove 
it. 
The immobilizer is activated.
Press the seat belt release button 
(page 44).
Allow the retractor to completely re-
wind the seat belt by guiding the latch 
plate.
Turning off the engine with 
KEYLESS-GO* 
Place the gear selector lever in 
positionP.
Press the KEYLESS-GO start/stop 
button (
page 35) to shut off the en-
gine.With the driver's door closed, the start-
er switch is now in position1. With the 
driver’s door opened, the starter switch 
is set to position0, same as SmartKey 
removed from starter switch 
(
page 34).
Press the seat belt release button 
(page 44).
Allow the retractor to completely re-
wind the seat belt by guiding the latch 
plate.
iAlways set the parking brake in addi-
tion to shifting to position P.
On slopes, turn the front wheels to-
wards the curb.
iThe SmartKey can only be removed 
from the starter switch with the gear 
selector lever in positionP.iWith the SmartKey removed and the 
driver’s door open, a warning sounds if 
the vehicle’s exterior lamps are not 
switched off.
!If you hear a warning signal, you have 
either
forgotten to turn off the lights be-
fore opening the driver’s door 
or
tried to turn off the engine while the 
gear selector lever is not inP.
Turn off the lights or place the gear se-
lector lever inP. 
     
        
        Page 60 of 474

58 Getting startedParking and lockingLocking Locking with the SmartKey
After exiting the vehicle press the lock 
button‹ on the SmartKey 
(page 32).
All turn signal lamps flash three times. 
The locking knobs on the doors move 
down.
For more information, see “SmartKey” 
(
page 92).Locking with KEYLESS-GO*
1Lock button on the outside door handle
After exiting the vehicle, press lock 
button1 on the outside door handle 
or on the trunk lid (
page 101).
The turn signal indicators come on 
briefly. The vehicle locks. The locking 
knobs in the doors move down. The an-
ti-theft alarm system is armed. 
For more information, see “SmartKey with 
KEYLESS-GO*” (
page 96).
Warning!
G
To prevent possible personal injury, always 
keep hands and fingers away from the door 
openings when closing the doors. Be espe-
cially careful when small children are 
around.
Before closing doors, make sure there is no 
possibility of someone getting caught in a 
door during closing.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. Unsupervised use of vehi-
cle equipment may cause an accident 
and/or serious personal injury. 
     
        
        Page 80 of 474

78 Safety and SecurityOccupant safetyOverride switch for rear passenger compartment
You can disable select functions in the rear 
passenger compartment for added safety 
(for instance when you have children riding 
in the rear passenger compartment).
You can disable the following functions in 
the rear passenger compartment:
rear door window operation 
(page 207)
adjustment of front passenger seat 
from the rear* (
page 118)
cigarette lighter in rear (
page 252)The override switch is located on the driv-
er’s door.
1Override switch
Activating override switch
Slide override switch 1 to the right.
A dot becomes visible. The functions in 
the rear are disabled.
Deactivating override switch
Slide override switch 1 to the left.
The functions in the rear are enabled 
again.
Warning!
G
Activate the override switch when children 
are riding in the back seats of the vehicle. 
The children may otherwise injure them-
selves, e.g. by becoming trapped in the win-
dow opening.
When leaving the vehicle, always remove the 
SmartKey or SmartKey with KEYLESS-GO* 
from the starter switch, take it with you, and 
lock your vehicle. Do not leave children un-
attended 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.iOperation of the rear door windows 
with the switches located in the driver’s 
door is still possible. 
     
        
        Page 89 of 474

87 Safety and Security
Anti-theft systems
Anti-theft alarm system
Once the alarm system has been armed, a 
visual and audible alarm is triggered when 
someone opens:
a door
the trunk
the hood
The alarm will stay on even if the activating 
element (a door, for example) is immedi-
ately closed.The alarm system will also be triggered 
when
someone attempts to raise the vehicle
the vehicle is opened with the 
mechanical key
someone opens a door from the inside 
if the vehicle was locked from the out-
side with the SmartKey
someone opens the trunk lid with the 
emergency release buttonArming the alarm system
The indicator lamp located in the central 
locking switch in on the upper part of the 
front center console.
1Indicator lamp
Lock your vehicle.
The turn signal lamps flash three times 
to indicate that the alarm system is ac-
tivated. The indicator lamp1 flashes 
to indicate that the alarm system is 
armed.
iIf the alarm stays on for more than 
30 seconds, a call to the Response 
Center is initiated automatically by the 
by the Tele Aid system (
page 255) 
provided Tele Aid service was sub-
scribed to and properly activated, and 
that necessary cellular service and GPS 
coverage are available. 
     
        
        Page 90 of 474
88 Safety and SecurityAnti-theft systemsDisarming the alarm system
Unlock your vehicle.
The turn signal lamps flash once to in-
dicate that the alarm system is deacti-
vated.Canceling the alarm
To cancel the alarm:
With the SmartKey
Insert the SmartKey in the starter 
switch.
or
Press the Œ or ‹ button on the 
SmartKey.
The alarm is canceled.With KEYLESS-GO*
Grasp the outside door handle.
The SmartKey with KEYLESS-GO must 
be within 3 ft. (1 m) of the vehicle.
or
Press the KEYLESS-GO* start/stop 
button (
page 35).
The SmartKey with KEYLESS-GO must 
be inside the vehicle.
The alarm is canceled.
iIf the turn signal lamps does not flash 
three times one of the following ele-
ments may not be properly closed:
a door
the trunk 
the hood
Close the respective element and lock 
the vehicle again.
iThe alarm system will rearm automati-
cally again after approximately 40 sec-
onds if no door was opened. 
     
        
        Page 92 of 474
90 Safety and SecurityAnti-theft systemsThe button is located on the upper part of 
the front center console.
1Indicator lamp
2Tow-away alarm off button
Switch off the ignition and remove the 
SmartKey from the starter switch.
Press button2.
The indicator lamp1 in the button 
comes on briefly.
Exit the vehicle and lock it with the 
SmartKey or (vehicles with 
KEYLESS-GO*) the lock button at each 
outside door handle or trunk lid.
iYou cannot disarm the tow-away alarm 
if the ignition is switched on.
iWhen you unlock your vehicle, the 
tow-away protection disarms automati-
cally.
The tow-away alarm remains disarmed 
until you lock your vehicle again.