
Cockpit
Function Page
:
Steering wheel gearshift pad-
dles 158
;
Combination switch 117
=
Instrument cluster 29
?
Horn
A
DIRECT SELECT lever 154
B
PARKTRONIC warning dis-
play
199
C
Overhead control panel 35
D
Climate control systems 126
E
Ignition lock 146
Start/Stop button 146 Function Page
F
Adjusts the steering wheel
manually
108
G
Adjusts the steering wheel
electrically
108
Steering wheel heating 109
H
Cruise control lever 179
I
Opens the bonnet 319
J
Diagnostics connection 24
K
Electric parking brake 169
L
Light switch 115Cockpit
27At a glance 

Function Page
:
Overhead control panel 35
;
PARKTRONIC warning dis-
play
199
=
Combination switch 117
?
Instrument cluster 29
A
Horn
B
DIRECT SELECT lever 154
C
Steering wheel gearshift pad-
dles 158
D
Light switch 115
E
Electric parking brake 169 Function Page
F
Diagnostics connection 24
G
Opens the bonnet 319
H
Ignition lock 146
Start/Stop button 146
I
Adjusts the steering wheel
manually
108
J
Adjusts the steering wheel
electrically
108
Steering wheel heating 109
K
Cruise control lever 179
L
Climate control systems 12628
CockpitAt a glance 

Multifunction steering wheel
Function Page
:
Multifunction display 237
;
Multimedia system display
= ?
Switches on voice-operated
navigation or LINGUA-
TRONIC
8
Mute
WX
Adjusts the volume
~
Rejects or ends a call 242
Exits telephone book/redial
memory
6
Makes or accepts a call
Switches to the redial mem-
ory Function Page
?
=;
Selects a menu 236
9:
Selects a submenu or scrolls
through lists 236
a
Confirming the selection 236
Hides display messages 253
%
Back 236
Switches off voice-operated
navigation or LINGUA-
TRONIC i
In vehicles with multimedia system
COMAND Online you can find further infor-
mation:
R on the multimedia system in the Digital
Owner's Manual
R on the DVD changer or single DVD drive in
the Digital Owner's Manual
R on LINGUATRONIC in the separate operat-
ing instructions i
You can find further information in vehicles
with an Audio 20 multimedia system:
R on the multimedia system in the Digital
Owner's Manual
R on voice-controlled navigation in the man-
ufacturer's operating instructions 32
Multifunction steering wheelAt a glance 

Door control panel
Function Page
:
Opens the door 85
;
%&Unlocks/locks
the vehicle
85
=
r
45=
Stores settings for the seat,
exterior mirrors and steering
column (memory function) 114
?
Adjusts the seats 102
A
7
Zö\
Adjusts and folds the exterior
mirrors in/out electrically 111 Function Page
B
W
Opens/closes the side
windows 93
C
q
Opens/closes the tail-
gate 91
D
Ü
Swings the ball cou-
pling in/out 228
E
n
Activates/deactivates
the override feature for the
side windows in the rear
compartment 6336
Door control panelAt a glance 

Useful information
i This Owner's Manual describes all models,
series and optional equipment for your vehi-
cle that were available at the time of going to
press. National variations are possible. Note
that your vehicle may not be equipped with all
of the functions described. This is also the
case for systems and functions relevant to
safety.
i Read the information on qualified specialist
workshops: (Y page 25). Panic alarm
X
To prime: press the!button :for
approximately one second.
A visual and audible alarm is triggered if the
alarm system is primed.
X To deactivate: press the!button :
again.
or
X Insert the key into the ignition lock.
or, on vehicles with KEYLESS‑GO: X Press the Start/Stop button.
The key must be in the vehicle.
The panic alarm function is only available in cer- tain countries. Occupant safety
Introduction to the restraint system
The restraint system can reduce the risk of vehi- cle occupants coming into contact with parts of
the vehicle's interior in the event of an accident.
The restraint system can also reduce the forces to which vehicle occupants are subjected during
an accident.
The restraint system comprises:
R Seat belt system
R Airbags
R Child restraint system
R Child seat securing systems
The components of the restraint system work in
conjunction with each other. They can only
deploy their protective function if all vehicle
occupants always:
R fasten their seat belts correctly
(Y page 40)
R adjust their seat and head restraint properly
(Y page 102).
As the driver, you also have to make sure that
the steering wheel is adjusted correctly.
Observe the information relating to the correct
driver's seat position (Y page 101).
You also have to make sure that an airbag can
inflate properly if deployed (Y page 42).
An airbag supplements a correctly fastened seat belt. As an additional safety device, the airbag
increases the level of protection for vehicle
occupants in the event of an accident. For exam-
ple, if the protection of the seat belt is sufficient in an accident, the airbags are not deployed. In
the event of an accident, only the airbags that
increase protection in the relevant accident sit- uation are deployed. However, seat belts and
airbags generally do not protect against objects penetrating the vehicle from the outside.
Information on the restraint system operation
can be found under "Triggering of belt tension-
ers and airbags" (Y page 49).
For more information about children travelling
with you in the vehicle, see "Children in the vehi-
cle" (Y page 52). Important safety notes
G
WARNING
If the restraint system is modified, it may no
longer work as intended. The restraint system
may then not perform its intended protective function by failing in an accident or triggering
unexpectedly, for example. There is an
increased risk of injury, possibly even fatal. Occupant safety
37Safety
Z 

Rear seat belt status indicator
The seat belts on the left and centre rear seats,
when viewed in the direction of travel, are not
fastened. (Example)
The rear seat belt status indicator is only avail-
able for certain countries.
The rear seat belt status indicator shows which rear seat belt is not fastened.
Hiding the rear seat belt status indicator imme-
diately (Y page 253). Airbags
Introduction The installation location of an airbag is identified
by the AIRBAG symbol.
An airbag supplements a correctly worn seat
belt. It is not a replacement for the seat belt. The airbag offers additional protection in corre-
sponding accident situations.
Not all airbags are deployed in an accident. The
different airbag systems work independently of
each other (Y page 49).
However, no system available today can com-
pletely eliminate injuries and fatalities.
It is also not possible to completely rule out a
risk of injury caused by an airbag due to the
speed at which the airbag must be deployed.
Important safety notes G
WARNING
If you deviate from the correct seat position,
the airbag cannot perform its intended pro-
tective function and can even cause addi-
tional injuries when deployed. There is an
increased risk of serious or even fatal injuries. In order to avoid such risks, always ensure
that all vehicle occupants:
R fasten their seatbelts correctly, including
pregnant women
R are seated correctly and maintain the fur-
thest possible distance from the airbags
R observe the following notes
Always ensure that there are no objects loca-
ted between the airbag and the vehicle occu-
pant.
R Adjust the seats properly before beginning
your journey. Always make sure that the seat is in an almost upright position. The centre of
the head restraint must support the head at
about eye level.
R Move the driver's and front-passenger seats
as far back as possible. The driver's seat posi-
tion must allow the vehicle to be driven safely.
R Only hold the steering wheel on the outside.
This allows the airbag to be fully deployed.
R Always lean against the backrest while driv-
ing. Do not lean forwards or lean against the
door or side window. You may otherwise be in
the deployment area of the airbags.
R Always keep your feet in the footwell in front
of the seat. Do not put your feet on the dash-
board, for example. Your feet may otherwise
be in the deployment area of the airbag.
R Always secure persons less than 1.50 mtall in
suitable restraint systems. Up to this height,
the seat belt cannot be worn correctly.
If a child is travelling in your vehicle, also
observe the following notes:
R Always secure children under twelve years of
age and less than 1.50 mtall in suitable child
restraint systems.
R Child restraint systems should be fitted to the
rear seats.
R Only secure a child to the front-passenger
seat when the front-passenger front airbag is
disabled, and only then in a rearward-facing
child restraint system. If the PASSENGER AIR BAG OFF indicator lamp is permanently lit, the
front-passenger front airbag is disabled
(Y page 38).
R Always observe the instructions and safety
notes on the "Automatic front-passenger
front airbag deactivation system"
(Y page 45) and on "Children in the vehicle" 42
Occupant safetySafety 

Driver's kneebag
Driver's kneebag
:deploys under the steering
column. The driver's kneebag is triggered
together with the front airbags.
The driver's kneebag offers additional thigh,
knee and lower leg protection for the occupant
in the driver's seat.
i The driver's kneebag is only available in cer-
tain countries.
Sidebags G
WARNING
Unsuitable seat covers can obstruct or pre-
vent the deployment of the airbags integrated into the seats. Consequently, the airbags can-
not protect vehicle occupants as they are
designed to do. In addition, the function of the automatic front-passenger front airbag deac-
tivation system could be restricted. This
poses an increased risk of injury or even fatal
injury.
You should only use seat covers that have
been approved for the corresponding seats by Mercedes-Benz. Front sidebags
:and rear sidebags ;deploy
next to the outer bolster of the seat backrest.
When deployed, the sidebag offers additional
thorax protection. It also offers additional pelvis
protection for occupants in the front seats.
However, it does not protect the:
R head
R neck
R arms
In the event of a side impact, the sidebag is
deployed on the side on which the impact
occurs.
Vehicles with the automatic front-passenger air- bag deactivation system: the sidebag on the
front-passenger side deploys under the follow-
ing conditions:
R an occupant is detected on the front-
passenger seat or
R the belt tongue is engaged in the belt buckle
of the front-passenger seat
If the belt tongue is engaged in the belt buckle,
the sidebag on the front-passenger side deploys if an appropriate accident situation occurs. In
this case, deployment is independent of
whether the front-passenger seat is occupied or
not.
Windowbags Windowbags
:are integrated into the side of
the roof frame and deploy in the area from the A-
pillar to the C-pillar.
When deployed, the windowbag enhances the
level of protection for the head. However, it does
not protect the chest or arms.
In the event of a side impact, the windowbag is
deployed on the side which the impact occurs.
If the system determines that they can offer
additional protection to that provided by the 44
Occupant safetySafety 

Using the radar sensor system, PRE-SAFE
®
PLUS is able to detect that a head-on or rear-end
collision is imminent. In certain hazardous sit-
uations, PRE-SAFE ®
PLUS takes pre-emptive
measures to protect the vehicle occupants.
Important safety notes The intervention of PRE-SAFE
®
PLUS cannot
prevent an imminent collision.
The driver is not warned before the intervention
of PRE-SAFE ®
PLUS.
PRE-SAFE ®
PLUS does not intervene:
R if the vehicle is reversing
R when the vehicle is towing a trailer and there
is a risk of a rear-end collision
When driving, or when parking or exiting a park- ing space with assistance from Active Parking
Assist, PRE-SAFE ®
PLUS will not apply the
brakes.
Function PRE-SAFE
®
PLUS intervenes in certain situa-
tions if the radar sensor system detects an
imminent head-on or rear-end collision.
PRE-SAFE ®
PLUS takes the following measures
depending on the hazardous situation detected:
R if the radar sensor system detects that a
head-on collision is imminent, the seat belts
are pre-tensioned
R if the radar sensor system detects that a rear-
end collision is imminent:
- the rear hazard warning lamps are activa-
ted and flash at a higher frequency
- the brake pressure is increased if the driver
applies the brakes when the vehicle is sta-
tionary
- the seat belts are pre-tensioned.
The PRE-SAFE ®
PLUS braking application is can-
celled:
R if the accelerator pedal is depressed when a
gear is engaged
R if the risk of a collision passes or is no longer
detected
R if DISTRONIC PLUS indicates an intention to
pull away
If the hazardous situation passes without result- ing in an accident, the original settings are
restored. Automatic measures after an acci-
dent
Immediately after an accident, the following
measures may be implemented, depending on
the type and severity of the impact:
R the hazard warning lamps are activated
R the emergency lighting is activated
R the vehicle doors are unlocked
R the front side windows are lowered
R vehicles with a memory function: the electri-
cally adjustable steering wheel is raised
R the engine is switched off and the fuel supply
is cut off
R vehicles with the Mercedes-Benz emergency
call system: automatic emergency call Children in the vehicle
Important safety notes
Accident statistics show that children secured
in the rear seats are safer than children secured in the front-passenger seat. For this reason,
Mercedes-Benz strongly advises that you installa child restraint system on a rear seat. Children
are generally better protected there.
If a child younger than twelve years old and
under 1.50 m in height is travelling in the vehi-
cle:
R always secure the child in a child restraint
system suitable for Mercedes-Benz vehicles.
The child restraint system must be appropri-
ate to the age, weight and size of the child.
R be sure to observe the instructions and safety
notes in this section in addition to the child
restraint system manufacturer's installation
instructions.
R always pay attention to the instructions and
safety notes on the automatic front-
passenger front airbag deactivation system
(Y page 45). 52
Children in the vehicleSafety