
R
R
es
estr traint syst
aint syst em
em Pr
ot
Pr otection pro
ection pro vided b
vided by t
y the r
he r es
estrtraint syst
aint syst em
em The
restraint system includes thefo llowing com-
ponents:
R Seat belt system
R Airbags
R Child restraint system
R Child seat secu ring systems
The restraint system can help pr eventtheve hicle
occupants from coming into contact with parts of
th eve hicle interior in theev ent of an accident. In
th eev ent of an accident, there straint system can
also reduce thefo rc es towhich theve hicle occu-
pants are subjected.
A seat belt can only pr ovide the best le vel of pro-
te ction if it is worncor rectl y.Depending on the
de tected accident situation, seat belt tensioners
and/or airbags supplement the pr otection o.ered
by a cor rectly wornseat belt. Seat belt tensioners
and/or airbags are not deplo yed in every acci-
dent. In order
forth ere straint system toprov ide the
intended le vel of pr otection, each vehicle occu-
pant must obser vethefo llowing information:
R Fasten seat belts co rrectl y.
R Sit in an almost up right seat position with their
back against the seat backrest.
R Sit with their feet resting on the 0oor, if possi-
ble.
R Always secure persons under 1.50 m tall in an
additional restraint system suitable for
Mercedes-Benz vehicles.
Ho wever,no system available today can com-
ple tely eliminate injuries and fatalities in every
accident situation. In particular, the seat belt and
airbag generally do not pr otect against objects
penetrating theve hicle from the outside. It is also
not possible tocomple tely rule out therisk of
injury caused bythe airbag deploying. Limit Limit
ations of t
ations of t he prot
he pr otection pro
ection pro vided b
vided by t
y the
he
r
r es
estr traint syst
aint syst em
em &
W
WARNING
ARNING Risk of injury or death due to
modi/cations tothere straint system
Ve hicle occupants may no lon ger be pr otected
as intended if alterations are made tothe
re straint system. #
Never alter the parts of there straint sys-
te m. #
Neverta mp er with the wiring or any elec-
tronic component parts or their soT-
wa re. If it is necessary
tomodify theve hicle toaccom-
modate a person with disabilities, contact a quali-
/ed specialist workshop.
Mercedes-Benz recommends that you use driving
aids which ha vebeen appr ovedfo ryo ur vehicle by
Mercedes-Benz. Occupant sa
fety
43
43

R
R
es
estr traint syst
aint syst em functionality
em functionality When
theve hicle is switched on, a self-test is per-
fo rm ed, during which the6 restraint system
wa rning lamp lights up. It goes out no later than a
few seconds aTer theve hicle is star ted. The com-
ponents of there straint system are then func-
tional. Malfunctioning r
Malfunctioning r
es
estrtraint syst
aint syst em
em A malfunction has occur
red in there straint sys-
te m if:
R the6 restraint system warning lamp does
not light up when theve hicle is switched on
R the6 restraint system warning lamp lights
up continuously or repeatedly during a journey &
D DAN AN GER
GER Risk of fatal injuries due to
re straint system malfunctions
Co mp onents in there straint system ma y be
acti vated unintentionally or not deploy as plan-
ned in an accident. In theev ent of an acci-
dent, the high-voltage on-board electrical sys-
te m may not be deactivated as intended. Yo
u may su.er an electric shock if youto uch
th e damaged components of the high-voltage
on-board electrical system. #
Have there straint system checked and
re paired immediately at a quali/ed spe-
cialist workshop. #
ATer an accident, switch o. theve hicle
immediatel y. F
F
unction of t
unction of t he r
he res
estrtraint syst
aint syst em in an accident
em in an accident How
there straint system works depends on the
se verity of the impact de tected and the apparent
type of accident:
R Frontal impact
R Rear impact
R Side impact
R Rollover
The activation thre sholds forth e components of
th ere straint system are de term ined based on the
ev aluation of the sensor values measured at vari-
ous points in theve hicle. This process is pre-e mp-
tive in nature. The triggering/deployment of thecomponents of
there straint system must take
place in good time at the start of the collision.
Fa ctors which can only be seen and measured
aTer a collision has occur red cannot play a deci-
sive role in airbag deployment. Nor do they pro-
vide an indication of airbag deployment.
The vehicle may be deformed signi/cantly without
an airbag being depl oyed. This is the case if only
parts which are relatively easily deformed are
a.ec tedand thera te of vehicle deceleration is
not high. Con versely, an airbag may be depl oyed
ev en though theve hicle su.ers only minor defor-
mation. If very rigid vehicle parts such as longitu-
dinal membe rsare hit, this may result in su1-
ciently high le vels of vehicle deceleration.
Depending on the de tected deployment situation,
th e components of there straint system can be
acti vated or deplo yed independently of each
ot her:
R Seat belt tensioner: frontal impact, rear
impact, side impact, rollo ver
R Driver's airbag, front passenger airbag: frontal
impact
R Knee airbag: frontal impact 44
44
Occupant saf
ety

R
Side airbag: side impact
R Centre airbag: side impact, rollo ver
R Window airbag: side impact, rollo ver,frontal
impact
R PRE- SAFE®
Impulse Side: side impact
The front passenger airbag can only be deplo yed
in an accident if thePA SSENGER AIR BAG OFF
indicator la mpis o.. If the front passenger seat is
occupied, make sure, bo thbefore and during the
journe y,that the status of the front passenger air-
bag is cor rect (/ page 54). &
W
WARNING
ARNING Risk of burns from hot airbag
components
The airbag parts are hot aTer an airbag has
been deplo yed. #
Do not touch the airbag parts. #
Have a depl oyed airbag replaced at a
qu ali/ed specialist workshop as soon as
possible. Mercedes-Benz
recommends that you ha vethe
ve hicle towe dto aqu ali/ed specialist workshop aTer an accident.
Take this into account, particu-
lar lyif a seat belt tensioner is triggered or an air-
bag deplo yed.
If th e seat belt tensioners are triggered or an air-
bag is deplo yed, you will hear a bang, and a small
amount of powder may also be released:
R The bang will not generally a.ect your hearing.
R Ingeneral, the powder released is not hazard-
ous tohealth but may cause short- term
breathing di1culties topersons su.ering from
asthma or other pulmonary conditions.
Pr ov ided it is safe todo so, lea vetheve hicle
immediately or open the window in order to
pr ev ent breathing di1culties. Seat belts Seat belts
Pr
ot
Pr otection pro
ection pro vided b
vided by t
y the seat belt
he seat belt Alw
aysfa sten your seat belt cor rectly before
starting a journe y.A seat belt can only pr ovide
th e best le vel of pr otection if it is worncor rectl y. &
W
WARNI NG
ARNI NGRisk of injury or dea thdue to
incor rectly fastened seat belt
If th e seat belt is not worncor rectl y,it cannot
per form its intended pro tective function.
In addition, an incor rectly fastened seat belt
can also cause injuries, forex ample, in the
eve nt of an accident or when braking or
ch anging direction suddenl y. #
Always ensu rethat all vehicle occupants
ha ve their seat belts fastened co rrectly
and are sitting proper ly. Alw
ays obser vethe instructions about the cor rect
driver's seat position and adjusting the seat
(/ page 110).
In order forth e cor rectly wornseat belt toprov ide
th e intended le vel of pr otection, each vehicle
occupant must obser vethefo llowing information:
R The seat belt must not be twisted and must /t
tightly and snugly across the body.
R The seat belt must be routed across the
cent reofthe shoulder and as low down across
th e hips as possible. Occupant saf
ety
45 45

R
The shoulder section of the seat belt should
not touch your neck nor be routed under your
arm or behind your bac k.
R Avoid wearing bulky clo thing, e.g. a winter
coat.
R Push the lap belt down as far as possible
across your hips and pull tight with the shoul-
der section of the belt. Neverro ute the lap
belt across your abdomen.
Pregnant women must also take particular
care with this.
R Neverro ute the seat belt across sharp, poin-
te d, abrasive or fragile objects.
R Only one person should use each seat belt at
any one time.
R Never secure objects with a seat belt if the
seat belt is also being used byone of theve hi-
cle's occupants.
Also ensu rethat no objects, e.g. a cushion,
are ever placed between a person and the
seat. If
ch ildren are tr avelling in theve hicle, be sure to
obser vethe inst ructions and saf ety no tes on
"Child ren in theve hicle" (/ page 60).
Alw ays obser vethe inst ructions for loading the
ve hicle when securing objects, lug gage or loads
(/ page 124). Limit Limit
ations of t
ations of t he prot
he pr otection pro
ection pro vided b
vided by t
y the seat
he seat
belt
belt &
W
WARNING
ARNING Risk of injury or death due to
incor rect seat position
The seat belt will not o.er the intended le vel
of pr otection if you ha venot mo vedth e seat
backrest toan almost vertical position.
In particular, you may slip under the seatbelt
and injure yourself. #
Adjust the seat proper lybefore begin-
ning your journe y. #
Always ensu rethat the seat backrest is
in an almost vertical position and that
th e shoulder section of your seat belt is ro
uted across the centre of your shoul-
der. &
W
WARNING
ARNING Risk of injury or death when
additional restraint systems are not used
fo r persons with a smaller stature
Pe rsons under 1.50 m tall cannot wearthe
seat belt cor rectly without a suitable addi-
tional restraint system. #
Always secure persons under 1.50 m tall
in a suitable restraint system. &
W
WARNING
ARNING Risk of injur y or death due to
damaged or modi/ed seat belts
Seat belts cannot pr ovide pr otection in thefo l-
lowing situations:
R the seat belt is damaged, has been modi-
/ed, is extremely dirty, blea ched or dyed
R the seat belt buckle is damaged or
ex tremely dirty 46
46 Occupant saf
ety

#
T
To adjus
o adjus t t
t the seat belt height
he seat belt height: :press button 3
on the seat belt outlet and slide the seat belt
outlet tothe desired position. #
T
To eng
o eng ag
age t
e t he seat belt outlet
he seat belt outlet: :re lease button
3 and ensure that the seat belt outlet
engages.
% A seat belt can only pr ovide the best le vel of
pr otection if it is worncor rectl y.Obser vethe
no tes on fastening the seat belt (/ page 45).
* NO
NO TE
TEDeployment of components of the
re straint system when the front passenger
seat is unoccupied and a seat belt is
buckled When
the front passenger seat is unoccupied
and the seat belt tongue of the seat belt is
engaged in the seat belt buckle, components
of there straint system ma y deployunnecessa-
ri ly on the front passenger side, e.g. the seat
belt tensioner. #
Only buckle the seat belts as intended. %
Obser vethe no tes on st owage areas
(/ page 124). Information on /tting a
child restraint system
and on children tr avelling in theve hicle can
be found in the "Children in theve hicle" sec-
tion (/ page 63). Seat belt adjus Seat belt adjustment function
tment function V
V
ehicles wit
ehicles wit h PRE-S
h PRE-SAFE
AFE®
®
:
:aTer a front seat belt
has been fastened, the automatic seat belt adjust-
ment may apply a cer tain tightening forc e. Do not
hold the seat belt tightly while it is adjusting.
Yo u can activate and deactivate the seat belt
adjustment function using the multimedia system
(/ page 48). A
A
ctiv
ctiv ating/deactiv
ating/deactiv ating seat belt adjus
ating seat belt adjustment via tment via
t
t he multimedia syst
he multimedia syst em
em Multimedia system:
4 © 5
Settings 5
Vehicle
5 Occupant protection #
Activate or deactivate Belt adjustment. R
R
eleasing seat belts
eleasing seat belts #
Press there lease button in the seat belt
buckle and guide the seat belt back with the
seat belt tongue. Seat belt w
Seat belt w
ar
arning function f
ning function f or t
or the dr
he dr iv
iver and fr
er and fr ont
ont
passeng
passeng er
er The
ü seat belt warning lamp in the driver's
display is a reminder that all vehicle occupants
must weartheir seat belts cor rectl y.
In addition, a warning tone may sound.
As soon as the driver and front passenger fasten
th eir seat belts, the seat belt warning goes out. F
F
unction of t
unction of t he r
he rear seat belt st
ear seat belt st atus display
atus display The
rear seat belt status displ ayis only available
fo r cer tain countries. 48
48
Occupant saf
ety

When
theve hicle is switched on, there ar seat
belt status displ ayinforms youfo r a cer tain
amount of time which rear seat belt is not fas-
te ned.
The status of there ar seat belt can be recognised
by the colour of the symbol in the driver's displa y:
R Grey:th e seat belt tongue of a rear seat belt is
not engaged in the seat belt buckle of the cor-
re sponding seat.
R Green: the seat belt tongue of a rear seat belt
is engaged in the seat belt buckle of the cor re-
sponding seat. Every
vehicle occupant must alw aysfa sten
th eir seat belt cor rectly before starting a jour-
ne y.
R Red: a vehicle occupant in there ar passen ger
compartment has released the seat belt
buckle using there lease button and may not
be proper lysecured.
If a vehicle occupant unfastens a seat belt in the
re ar, there ar seat belt status displ ayappears
again.
In addition, a warning tone may sound. Airbags Airbags
Ov
Ov
er
er vie
vie w of airbags
w of airbags Driver's/front passenger seat:
1 Knee airbag
2 Driver's airbag
3 Front passenger airbag
4 Window airbag
5 Side airbag
6 Centre airbag 1
1) Only for cer tain countries. Occupant saf
ety
49
49

Depending on
the de tected accident situation, the
wind owairbag on the front passenger side may
deplo y.The airbag is deplo yedre ga rdless of
whe ther the front passenger seat is occupied.
Inf
Inf or
ormation on t
mation on t he centr
he centre airbag
e airbag
When triggered, the centre airbag deplo ys
between the front seats. Do not st owany objects
in the deployment area of the centre airbag. Pr
ot
Pr otection pro
ection pro vided b
vided by t
y t he airbags
he airbags Depending on
the accident situation, an airbag
may supplement the pr otection o.ered bya cor-
re ctly fastened seat belt. &
W
WARNING
ARNING Risk of injur y or death due to
an inco rrect seat position
If yo u deviate from the cor rect seat position,
th e airbag cannot per form its intended pr otec-
tive function. Each
vehicle occupant must make sure of the
fo llowing:
R Fasten seat belts co rrectl y.Pregnant
wo men must take particular care toensure
th at the lap belt ne ver lies across the
abdomen.
R Adopt the cor rect seat position and keep
as farawa y as possible from the airbags.
R Obser vethefo llowing information. #
Always make sure that there are no
objects between the airbag and vehicle
occupant. To
avo idtherisks resulting from the deployment
of an airbag, each vehicle occupant must obser ve
th efo llowing information in particular:
R Before starting your journe y,adjust your seat
cor rectl y;the driver's seat and front
passenger seat should be mo ved as far back
as possible.
When doing so, alw ays obser vethe informa-
tion on the cor rect driver's seat position
(/ page 110). R
Only hold the steering wheel bythe steering
wheel rim. This allo ws the airbag tobe fully
deplo yed.
R Always lean against the seat backrest when
th eve hicle is in motion. Do not lean forw ards
or against the door or side windo w.You may
ot herwise be in the deployment area of the
airbags.
R The occupants must alw ayske ep their feet on
th e 0oor. Do not put your feet on the cockpit,
fo rex ample. Your feet may otherwise be in the
deployment area of the airbag.
R Ifch ildren are tr avelling in theve hicle, obser ve
th e additional no tes (/ page 60).
R Always st owand secure objects cor rectl y.
Objects in theve hicle interior may pr event an air-
bag from functioning cor rectl y.Each vehicle occu-
pant must alw ays make sure of thefo llowing in
particular:
R There are no people, animals or objects
between theve hicle occupants and an airbag.
R There are no objects between the seat, door
and door pillar (B-pillar). Occupant saf
ety
51 51

R
There are no ha rdobjects, e.g. coat hangers,
hanging on thegr ab handles or coat hooks.
R There are no accessories, such as mobile navi-
ga tion devices, mobile phones or cup holders,
within the deployment area of an airbag, e.g.
on the cockpit, on the door, on the side win-
dow or on the side trim.
In addition, no connecting cables, tensioning
straps or retaining straps must be routed or
attached totheve hicle within the deployment
area of an airbag. Alw ays comply with the
accessory manu facturer's ins tallation inst ruc-
tions and, in particular, the no tes on suitable
places for installation.
R There are no heavy, sharp-edged or fragile
objects in the poc kets of your clo thing. Store
such objects in a suitable place. Limit Limit
ations of t
ations of t he prot
he pr otection pro
ection pro vided b
vided by airbags
y airbags &
W
WARNING
ARNING Risk of injury due tomodi/ca-
tions tothe co ver of an airbag
If yo u modify the co ver of an airbag or a1x
objects such as stic kers to it,the airbag can
no longer function as intended. #
Never modify the co ver of an airbag. #
Do not attach any objects tothe co ver. The installation location of an airbag is identi/ed
by the AIRB AGsymbol (/ page 49).
Objects in the deployment area of an airbag may
pr ev ent the airbag from functioning cor rectl y. &
W
WARNI NG
ARNI NGRisk of injury from objects in
th e deployment area of an airbag
Objects in the deployment area of an airbag
can hinder or pr event the cor rect deployment
of the airbag.
The airbag may then deploy in an uncontrolled
manner and may even cause additional inju-
ri es totheve hicle occupants bydeploying. This may be
the case in particular if the airbag
is integ rated into the seat. #
Always st owand secure objects cor-
re ctl y. #
Before commencing your journe y,make
sure that no objects are st owed in the
deployment area of an airbag. Obser
vethe no tes on loading theve hicle
(/ page 124). When triggered, the centre airbag
deplo ysbetween the front seats (/ page 49). &
W
WARNING
ARNING Risk of injury or death due to
th e use of unsuitable seat co vers
Due tounsuitable seat co vers,th e airbags
cannot pr otect vehicle occupants as intended.
In addition, the operation of the automatic
front passenger airbag shuto. could be
re stric ted. #
You should only use seat co vers that
ha ve been appr oved forth e cor respond-
ing seats byMercedes-Benz. 52 52
Occupant sa
fety