Page 24 of 473
23 At a glance
Cockpit
ItemPage
1Steering wheel gearshift
control163
2Cruise control lever245
3Multifunction steering
wheel26,
126
4Horn
5Instrument cluster24,
122
6Overhead control panel29
ItemPage
7Glove box lid release256
8Glove box lock256
9Center console27
aStarter switch33
bHood lock release297
cSteering wheel adjustment
lever38
dRemote trunk opening
switch100
eParking brake pedal46, 54
fDoor control panel30
ItemPage
gParking brake release46
hCombination switch
Turn signals49
Windshield wipers50
High beam49
jExterior lamp switch48,
114
kExterior rear view mirror
adjustment40,
113
lHeadlamp washer button*169
Page 89 of 473

88 Safety and Security
Anti-theft systems
Immobilizer
The immobilizer prevents unauthorized
persons from starting your vehicle.
Activating
Remove the SmartKey from the starter
switch.
Deactivating
Switch on the ignition (page 33).
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 (e. g. a door) is immediately
closed.
The alarm system will also be triggered
when
someone attempts to raise the vehicle
(only vehicles with tow-away alarm)
opening the vehicle with the
mechanical key
someone opens a door from the inside
someone opens the trunk with the
emergency release button
i
Starting the engine will also deactivate
the immobilizer.
In case the engine cannot be started
(yet the vehicle’s battery is charged),
the system is not operational. Contact
an authorized Mercedes-Benz Center
or call 1-800-FOR-MERCedes (in the
USA), or 1-800-387-0100 (in Canada).
i
If the alarm stays on for more than
30 seconds, a call to the Response
Center is initiated automatically by the
Tele Aid system* (
page 264)
provided Tele Aid service was
subscribed to and properly activated,
and that necessary cellular service and
GPS coverage are available.
Page 298 of 473

297 Operation
Engine compartment
Engine compartment
Hood
Opening
The hood lock release lever is located to
the left of the steering wheel under the
dashboard.
1Hood lock release leverPull lever1 downwards (page 297).
The hood is unlocked and handle2.
2Lever for opening the hoodPush lever2 under the hood upwards.
Pull up on the hood and then release it.
The hood will be automatically held
open at shoulder height by gas-filled
struts.
Warning!G
Do not pull the release lever while the
vehicle is in motion. Otherwise the hood
could be forced open by passing air flow.
!
To avoid damage to the windshield
wipers or hood, never open the hood if
the wiper arms are folded forward away
from the windshield.
Warning!G
To help prevent personal injury, stay clear of
moving parts when the hood is open and the
engine is running. Make sure the hood is
properly closed before driving. When closing
the hood, use extreme caution not to catch
hands or fingers.
The radiator fan may continue to run for
approximately 30 seconds or even restart
after the engine has been turned off. Stay
clear of fan blades.
Page 303 of 473

302 Operation
Engine compartment
The coolant expansion tank is located on
the passenger side of the engine compart-
ment.
1Coolant expansion tank
2Cap
Using a rag, turn cap2 slowly approx-
imately one half counterclockwise to
release any excess pressure.
Continue turning the cap counterclock-
wise and remove it.
The coolant level is correct if the level
for cold coolant: reaches the black
top part of the reservoir
for warm coolant: is approx. 0.6 in
(1.5 cm) higher
Add coolant as required.
Replace and tighten cap.
For more information on coolant, see
“Coolants” (
page 439).
Warning!G
In order to avoid any possibly serious burns:
Use extreme caution when opening the
hood if there are any signs of steam or
coolant leaking from the cooling system,
or if the coolant temperature gauge indi-
cates that the coolant is overheated.
Do not remove pressure cap on coolant
reservoir if coolant temperature is
above 158°F (70°C). Allow engine to
cool down before removing cap. The
coolant reservoir contains hot fluid and
is under pressure.
Using a rag, slowly open the cap
approximately1/2 turn to relieve excess
pressure. If opened immediately, scald-
ing hot fluid and steam will be blown out
under pressure.
Do not spill antifreeze on hot engine
parts. Antifreeze contains ethylene
glycol which may burn if it comes into
contact with hot engine parts.
Page 346 of 473

345 Operation
Vehicle care
Cleaning the windows and the wiper
blades
Switch on the ignition (page 33).
Turn combination switch to wiper
settingII (
page 50).
With wiper arms in vertical position,
switch off the ignition (
page 33).
Fold the wiper arms forward until they
snap into place.
Clean the wiper blade inserts with a
clean cloth and detergent solution.
Use a soft, clean cloth and a mild win-
dow cleaning solution on all outside
and inside glass surfaces.
An automotive glass cleaner is recom-
mended.
!
The windshield wipers must be in a ver-
tical position before folding them away
from the windshield. They could other-
wise damage the hood.
Never open the hood when the wiper
arms are folded forward.
Warning!G
For safety reasons, switch off wipers and re-
move SmartKey from starter switch before
cleaning the windshield and/or the wiper
blades. Otherwise, the wiper motor could
suddenly turn on and cause injury.
!
Fold the windshield wiper arms back
onto the windshield before turning the
SmartKey in the starter switch.
Hold on to the wiper when folding the
wiper arm back. If released, the force
of the impact from the tensioning
spring could crack the windshield.
!
To clean the window interior, do not
use a dry cloth, abrasives, solvents or
cleaners containing solvents. Do not
touch the inside of the front, rear or
side windows with hard objects such as
an ice scraper or ring. Doing so may
damage the windows.
Page 403 of 473
402 Practical hints
Replacing wiper blades
Removing and installing wiper bladesRemove SmartKey from starter switch.
Removing wiper blades
1Unlocking
2TabPull the tab2 in the direction of
arrow1.
The wiper blade is unlocked.
Lift up the wiper arm as far as you need
to remove the wiper blade.
Carefully fold the wiper arm back to
rest on the windshield.
Warning!G
For safety reasons, switch off wipers and
remove SmartKey from starter switch be-
fore replacing a wiper blade. Otherwise, the
wiper motor could suddenly turn on and
cause injury.
!
Never open the hood when the wiper
arms are folded forward.
For your convenience, we recommend
that you have this work carried out by
an authorized Mercedes-Benz Center.
!
Hold on to the wiper arm when folding
the wiper arm back. If released, the
force of the impact from the tensioning
spring could crack the windshield.