Page 25 of 474
23 At a glance
Cockpit
Item
Page
1
Combination switch
Turn signals
Windshield wipers
High beam
51
52
135
2
Cruise control lever
Cruise control
Distronic*
221
214
217
3
Instrument cluster
24
4
Multifunction steering 
wheel
26
5
Steering wheel gearshift 
control (S 55 AMG only)
181
Item
Page
6
Lever for voice control sys-
tem*, see separate operat-
ing instructions
7
Front Parktronic* warning 
indicator for right 
front area 
237
8
Overhead control panel
29
9
Glove box lock
244
a
Glove box lid release
244
b
Glove box
244
c
Center console
27, 28
d
Starter switch
34
e
Horn
Item
Page
f
Steering wheel adjustment 
stalk
Heated steering wheel*
       40
253
g
Parking brake pedal
48
h
Hood lock release
286
j
Parking brake release
48
k
Door control panel
30
l
Exterior lamp switch
131
m
Headlamp washer button*
186
n
Front Parktronic* warning 
indicator for left front area 
237 
     
        
        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 288 of 474

286 OperationEngine compartmentHood
Opening
The hood lock release lever is located in 
the driver’s footwell to the left of the park-
ing brake pedal.
1Release lever
Pull release lever 1 in direction of ar-
row.
The hood is unlocked and handle2 
will extend out of the radiator grille.
2Handle for opening the hood
Pull handle 2 to its stop out of radiator 
grille.
Pull up on the hood (do not pull up on 
the handle) 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 vehi-
cle is in motion. Otherwise the hood could 
be forced open by passing air flow. 
!To avoid damage to the windshield wip-
ers 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 ap-
proximately 30 seconds or even restart af-
ter the engine has been turned off. Stay 
clear of fan blades. 
     
        
        Page 336 of 474

334 OperationVehicle care
Clean the wiper blade inserts with a 
clean cloth and detergent solution.Window cleaning
Turn on the wipers and place it in a ver-
tical position.
For information how to place the wipers in 
a vertical position, see “Replacing wiper 
blades” (
page 396).
Use a window cleaning solution on all 
glass surfaces. 
An automotive glass cleaner is recom-
mended.
Warning!
G
For safety reasons, switch off wipers and re-
move SmartKey from starter switch (vehi-
cles with KEYLESS-GO*: Make sure the 
vehicle's on-board electronics have status 
0) before cleaning the wiper blades. Other-
wise, 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.
!The windshield wipers must be in a ver-
tical position before folding them away 
from the windshield. They could other-
wise damage the hood. Warning!
G
For safety reasons, switch off wipers and re-
move SmartKey from starter switch (vehi-
cles with KEYLESS-GO*: Make sure the 
vehicle's on-board electronics have status 
0) before cleaning the wiper blades. Other-
wise, 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. 
     
        
        Page 399 of 474
397 Practical hints
Replacing wiper blades
Installing wiper blades
Slide the wiper blade onto wiper arm 
until it locks in place
Rotate the wiper blade into position 
parallel to wiper arm.
Fold the wiper arm backward to rest on 
the windshield. Make sure you hold 
onto the wiper when folding the wiper 
arm back.
!Never open the hood when the wiper 
arm is folded forward.
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.
Do not allow the wiper arms to contact 
the windshield glass without a wiper 
blade inserted.
Make certain that the wiper blades are 
properly installed. Improperly installed 
wiper blades may cause windshield 
damage.
For your convenience, we recommend 
that you have this work carried out by 
an authorized Mercedes-Benz Center.