
Protection bythea irbags
Depending on thea ccidents ituation,anairbag
can add tothep rotection of fere dbyac orrectly
fast ened seat belt.
&
WARNING Risk of injury or deathdueto
incor rect seatp osition
If yo ud eviat ef romt he cor rect seatp osition,
th ea irbag cann otper form its intended pro‐
te ctiv efunction and deployment ma yeven
cause fur ther injuries.
To avo id hazardous situations ,alway sm ake
sur ethat all vehicle occupants:
RAres eated properly and keep as fara wa y
as possible from thea irbags.
RObser vethef ollowing information.
#Alw aysm akes uret hat ther ea reno
objects between thea irbag and the
ve hicle occupant.
To avo idrisk sr esulting from thed eployment of
th ea irbag:
RBefor estartin gy our journe y,adjus tyour seat
cor rectly ;the driver's seat and front
passenger seat should be mo vedasf ar back
as possible.
When doing so, alw ayso bser vethei nforma‐
tion on thec orrect driver's seatp osition
(
→page 81).
ROnl yhold thes teering wheel bythes teering
wheel rim. This all owsthe airbag tobe fully
deplo yed.
RAlw aysl ean agains tthe seat backres twhen
th ev ehicle is in motion. Do no tlean forw ards
or lean agains tthe door or side windo w.You
ma yotherwise be in thed eployment area of
th ea irbags.
RAlw aysk eep your feet on thef loor .Don ot
put your feet on thec ockpit, fore xamp le.
Yo ur feet ma yotherwise be in thed eploy‐
ment area of thea irbag.
RIfch ildren ar etrave ling in thev ehicle,
obser vethea dditional no tes(→pag e45).
RAlw ayss towa nd secur eobject scorrectly. Objects in
thev ehicle interior ma ypreve nt an
airba gfromf unctioning cor rectly .There fore
alw ayse nsur ethat:
RTher eareno people, animals or objects
between thev ehicle occupants and an air‐
bag.
RTher eareno objectsb etwe en thes eat, door
and door pillar (B-pillar).
RNo hardobjects, e.g. coat hangers, ar ehang‐
ing on theg rabh andles or coat hooks.
RNo accessories, suc hascup holders, are
attached tothev ehicle within thed eploy‐
men t area of an airbag, e.g. todoors, side
windo wsor side paneling.
RNo heavy ,sharp-edged or fragile objectsa re
in thep ockets of your clo thing. Stores uch
object sinas uitable place.
38
Occupant saf ety

RAlwayso bser vethec hild restra int sy stem
manufacturer's ins tallation instructions.
RNe verp lace objects under or behind the
ch ild restra int sy stem, e.g. cushions.
RFu llyr etra ct thes eat cushion lengt hadjust‐
ment.
RThe entir ebase of thec hild restra int sy stem
mus talway sr estont he seat cushion of the
front-passenger seat.
RThe backres toftheforw ard-facin gchild
re stra int sy stem mus tlie as flat as possible
agains tthe backres tofthe front-passenge r
seat.
RThe child restra int sy stem mus tnot to ucht he
ro of or be put under stra in by theh ead
re stra ints. Adjus tthe seat backres tinclina‐
tion and theh ead restra int setting accord‐
ingly.
& WARNING Risk of injury or deathdueto
object sbetwe en thes itting sur face and
th ec hild restra int sy stem
Objects between thes itting sur face and the
ch ild restra int sy stem could af fect thef unc‐
tion of thea utomatic front passenger airbag
shutoff.
This could result in thef ront passenger air‐
bag no tfunctioning as intended during an
accident.
#Do no tplace an yobjects between the
sitting sur face and thec hild restra int
sy stem.
#The entir ebase of thec hild restra int
sy stem mus talway sr estont he sitting
sur face of thef ront passenger seat.
#The backres toftheforw ard-facin gchild
re stra int sy stem mus tlie as flat as pos‐
sible agains tthe backres tofthe front
passenger seat.
#Alw aysc ompl ywitht he child restra int
sy stem manufacturer's ins tallation
instructions.
Ap erson in thef ront passenger seat mus t:
RHave their seat belt fastened cor rectly.
RSit in an almos tupright position wi th their
bac kagains tthe seat backrest.
RSit wit htheir feet resting on thef loor ,ifp os‐
sible.
Otherwise, thef ront passenger air bag ma ybe
deactivated bymis take ,for example because the
front passenger:
RTr ans fers their weight bysupporting them‐
selves on avehicle armrest.
RSits in suc hawaythat their weight is raised
from thes itting sur face.
&
WARNING Risk of injury or deathdueto
deactivated front passenger airbag
If th eP ASSENGER AIR BAGO FFindicator
lam pisl it,the front passenger airbag is disa‐
bled. It will no tbedeployedint heeve nt of
an accident and canno tperform its intended
pr otectiv efunction.
40
Occupant saf ety

Status display
If th ef ront passenger seat is occupied, ensure,
bo th befor eand during thej ourne y,that thes ta‐
tus of thef ront passenger air bag is cor rect for
th ep reva ilings ituation.
Af teri nstalling arear ward-facing child
re stra int sy stem on thef ront passenger
seat: PASSENGER AIR BAGO FFmus tbel it con‐
tinuousl y.
&
WARNING Risk of injury or deathcaused
by usingar earward-facing child restra int
sy stem when thef ront passenger airbag
is enabled
If yo us ecur eac hild in arear ward-facing
ch ild restra int sy stem on thef ront passenger
seat and theP ASSENGER AIR BAGO FFindi‐
cator lam pisoff,t he front passenger airbag
can deplo yintheevent of an accident.
The child could be stru ck bythea irbag.
Alw aysm akes uret hat thef ront passenger
airbag is disabled. The PASSENGER AIR BAG
OFF indicator lam pmustbel it.
When ins talling achild restra int sy stem on the
front passenger seat, observ ethe vehicle-spe‐
cific information (
→pag e39).
Depending on thec hild restra int sy stem and the
st atur eoft hechild, theP ASSENGER AIR BAG
OFF indicator lam pmaybe off. In this case, do
no tins tallth er ear ward-facing child restra int
sy stem on thef ront passenger seat.
Ins tead, ins tallth er ear ward-facing child
re stra int sy stem on asuitable rear seat.
Af teri nstalling aforwa rd-facin gchild
re stra int sy stem on thef ront passenger
seat: depending on thec hild restra int sy stem
and thes tatur eoft hechild, PASSENGER AIR
BA GO FFma ybel it continuousl yorbeoff.
Alw ayso bser vethef ollowing information.
&
WARNING Risk of injury or deathdueto
incor rect positioning of thef orwa rd-
fa cing child restra int sy stem
If yo us ecur eac hild in aforwa rd-facin gchild
re stra int sy stem on thef ront passenger seat
and youp ositio nthe front passenger seat too
clos etot he cockpit, in thee vent of an acci‐
dent, thec hild could:
RCome int ocontact wi thparts of thev ehi‐
cle interior if theP ASSENGER AIR BAG
OFF indicator lam pislit,fore xamp le.
RBe stru ck bythea irbag if theP ASSENGER
AIR BAGO FFindicator lam pisoff
#Alwaysm ove thef ront passenger seat
as farb ackasp ossible and fully retract
th es eat cushion lengt hadjustment.
Alw aysm akes uret hat thes houlder belt
st ra pisc orrectly routed from thes eat
belt outle tonthevehicle tothes houl‐
der belt guide on thec hild restra int sys‐
te m. The shoulder belt stra pm ustb e
ro uted forw ards and down wardsf rom
th es eat belt outlet. If necessar y,adjust
42
Occupan tsafet y

thes eat belt outle tand thef ront
passenger seat accordingly.
#Alw ayso bser vethec hild restra int sys‐
te mm anufacturer's ins tallation instruc‐
tions.
When ins talling achild restra int sy stem on the
front passenger seat, observ ethe vehicle-spe‐
cific information (
→pag e39).
If ap erson is sitting in thef ront passenger
seat: PASSENGER AIR BAGO FFma ybel it con‐
tinuousl yorbeo ff,d ependingont he person's
st ature. Alw ayso bser vethef ollowing informa‐
tion.
If th ef ront passenger seat is occupied by:
RAn adul toraperson wit habuild cor respond‐
ing tothat of an adult,t hePASSENGER AIR
BA GO FFindicator lam pmustbeo ff.T his
indicates that thef ront passenger air bag is
enabled.
If th eP ASSENGER AIR BAGO FFindicator
lam pisl it continuousl y,an adult or person
wit hab uild cor responding tothat of an adult shouldn
otuse thef ront passenger seat.
Ins tead, they should use arear seat.
RAp erson wit hasmaller statur e(e.g. ateen‐
ager or small adult), theP ASSENGER AIR
BA GO FFindicator lam peither lightsupa nd
re mains lit depending on ther esult of the
classifi cation or ,alter natively ,goes out.
-PA SSENGER AIR BAGO FFis off: mo ve
th ef ront passenger seat as farb acka s
possible or aperson wit hasmaller stat‐
ur es houldu searear seat.
-Ifth eP ASSENGER AIR BAGO FFindicator
lam pisl it continuously: aperson wit ha
smaller statur eshouldn otuse thef ront
passenger seat.
& WARNING Risk of injury or deathwhen
th eP ASSENGER AIR BAGO FFindicator
lam pisl it
If th eP ASSENGER AIR BAGO FFindicator
lam premain slit af tert he sy stem self-test,
th ef ront passenger air bag is deactivated. It
will no tbedeployedint heeve nt of an acci‐
dent. In this case, thef ront passenger air bag
cannot perform its intended pr otectiv efunc‐
tion ,e.g. when aperson is seated in thef ront
passenger seat.
That person could, fore xamp le, com einto
con tact wi th thevehicle interior ,especially if
th ep erson is sitting tooc lose tothec ockpit.
If th ef ront passenger seat is occupied,
alw ayse nsur ethat:
RThe classification of thep erson in the
front passenger seatisc orrect and the
front passenger air bag is enabled or
deactivated in accordance wit hthe per‐
son in thef ront passenger seat.
RThe person is seated properly wit hacor‐
re ctl yfastened seat belt.
RThe front passenger seat has been mo ved
as farb ackasp ossible.
Further related subjects:RChild restra int sy stem on thef ront passenger
seat (→pag e51).
Occupant saf ety 43

PRE-SAFE®
Information on PRE-SAFE®(anticipatory
occupant pr otection)
PRE- SAFE®is able todetect cer tain critical driv‐
ing situations and implementp re-em ptivem eas‐
ures toprotect thev ehicle occupants.
PRE-SAFE
®can implement thef ollowing meas‐
ures independentl yofeacho ther:
RTighten thes eat belts on thed rive r's seat
and front passenger seat.
RClose thes ide windo ws.
RVehicles with sliding sunroof: Closethe
sliding sunroof.
RVe hicles with memor yfunction: Movethe
front passenger seattoa morefavorable
seat position.
RVe hicles with multicontour seat: Increase
th ea ir pressur einthe seat side bols ters of
th es eat backrest.
RPRE-SAFE®Sound: pr ovided that them ulti‐
media sy stem is switched on, generates a brie
fnoise signaltos timulatethe innat epro‐
te ctiv em echanism of aperson's hea ring.
* NO
TEDama gecaused byobject sinthe
fo ot we ll or behindt he seat
The automatic adjustment of thes eat posi‐
tion ma yresult in damag etothe seat and/or
th eo bject.
#Stow object sinas uitable place.
Reversing theP RE- SAFE®measures
If an accident did no toccur ,the pre-e mptive
measures that weretaken ar ereversed. You
will need toper form certain settings your‐
self.
#If th es eat belt pre-tensioning is no treduced,
mo vethes eat backres tbacks lightl y.
The locking mechanism releases.
PRE- SAFE®PLUS (anticipa tory occupant pro‐
te ction plus)
PRE-SAFE®PLUS can de tect cer tain impacts,
particularly an imminent rear impact ,and take
pre-e mptivem easure stoprotect thev ehicle
occupants. These measures canno tnecessarily
pr eve nt an imminent impact.
PRE-SAFE
®PLUS can implement thef ollowing
measures independentl yofeacho ther:
RTightening thes eat belts on thed rive r's seat
and front passenger seat.
If an accidentd oes notoccur ,the pre-emp‐
tiv em easures that we retake na re re versed .
RIncre asingb rake pressur ewhen thev ehicle
is stationar y.This brak eapplication is can‐
celed automatically when thev ehicle pulls
aw ay.
PRE-SAFE
®PLUS sy stem limitationsRNo me asures ar eimp lemented:
-Ifth ev ehicle is backing up.
RThe brakes ar enotapplied:
-Whils tdriving.
44
Occupant saf ety

#Ifth ec hild restra int sy stem has been
ex posed todirect sunlight ,allowitt o
cool befor esecu ring achild int oit.
#Ne verlea ve children unatte ndedint he
ve hicle.
The use of seat belts and child restra int sy stems
is requ ired bylawi n:
Rall 50 states
Rth eU .S.territories
Rth eD istrict of Columbia
Rall Canadian pr ovinces
All child restra int sy stems mus tmeetthe follow‐
ing standards:
RU. S. Federal Mo torV ehicle Saf etyS tandards
21 3a nd 225
RCanadian Mo torV ehicle Saf etyS tandards
21 3a nd 210.2
Yo uc an obtain fur ther information about the
cor rect child restra int sy stem from an yauthor‐
ized Mercedes-Benz Center. To
impr oveprotection forc hildren younger than
12 yearso ld and unde r5ft(1.50 m) in height,
Mercedes-Ben zrecommends youo bserv ethe
fo llowing no tes:
ROnl ysecur echildren using achild restra int
sy stem whic hissuitable and recommended
fo rM ercedes-Benz vehicles, as well as appro‐
priat etot he size, ag eand weight of the
ch ild. Be sur etoobservethei nstruction sfor
cor rect us eoft hechild restra int sy stem.
RAlw aysi ns tallac hild restra int sy stem on a
re ar seat if possible.
ROnly usethef ollowing securing sy stems for
ch ild restra int sy stems:
-th es eat belt sy stem
-th eL ATCH -type (ISOFIX )mounting
brac ket
-theT op Tether anchorages
RThe manufacturer's ins tallation instructions
fo rt he child restra int sy stem.
RThe warning labels in thev ehicle interior an d
on thec hild restra int sy stem.
&
WARNING Risk of injury causedby
incor rect ins tallation of thec hild
re stra int sy stem
If th ec hild restra int sy stem is incor rectly
ins talled on asuitable seatin gposition, it
canno tperform its intended pr otectiv efunc‐
tion.
The child canno tberestrained in thee vent of
an accident, heavy braking or asudde n
ch ang eofd irection.T his posesani ncreased
ri sk of injur yorevenf atal injur y.
#Alwaysc ompl ywitht he manufacturer's
ins tallation instructions fort he child
re stra int sy stem and its cor rect use.
#Make surethat thee ntir ebase of the
ch ild restra int sy stem alw aysr ests on
th es itting sur face of thes eat.
#Neverp lace objects under or behind
th ec hild restra int sy stem, e.g. acush‐
ion.
#Alw aysu sechild restra int sy stems with
th eo riginal co verd esigned fort hem.
46
Occupant saf ety

#Alwaysr eplace damaged co vers with
ge nuine co vers.
&
WARNING Risk of accident caused by
incor rectl yins tal led child restra int sys‐
te ms
If th ec hild restra int sy stem is no tcorrectly
ins talled or secured, it could release in the
ev ent of an accident, sudden braking or a
sudden chang eind irection.
The child restra int sy stem could be flung
arounda nd hitvehicle occupants. This poses
an increased risk of injur yorevenf atal
injur y.
#Alwaysi ns tallch ild restra int sy stems
cor rectl y,eve nw henn otin use.
#Alw aysc ompl ywitht he child restra int
sy stem manufacturer's ins tallation
instructions.
& WARNING Risk of injury causedbythe
use of damaged child restra int sy stems
Child restra int sy stems or their retainin gsys‐
te ms that ha vebeen subjec tedtoal oad in
an accidentm aythen no tbea bletoper form
th eir intended pr otectiv efunction.
The child canno tberestrained in thee vent of
an accident, heavy braking or asudde n
ch ang eofd irection.T his posesani ncreased
ri sk of injur yorevenf atal injur y.
#Alwaysr eplace child restra int sy stems
immediatel ythat ha vebeen damaged or
in vo lved in an accident.
#Ha ve thes ecuring sy stems fort he child
re stra int sy stems checkedataq ualified
specialis tworks hop befor einstalling a
ch ild restra int sy stem again.
Ab oos ters eat ma ybenecessar ytoachieve
proper seat belt positioning forc hildren over
40 lbs (1 8kg) in weight until they reac has ize
wher eathree-point seat belt can be used prop‐
erly without aboos ters eat. The
following no tesm ustbeo bserved:
RWhen ins talling achild restra int sy stem on
th ef ront passenger seat, thei nformation on
ins talling achild restra int sy stem on thef ront
passenger seat (
→pag e51).
RInstructions and saf etyn otes on thea uto‐
matic front passenger air bag shutoff
(
→pag e39).
RSaf etyn otes on thes eat belt (→pag e33).
RInformation on thec orrect us eoft he seat
belt (→pag e36).
Activating/deactivatin gthe child seat saf ety
fe atur eoft he sea tbelt
&
WARNING Risk of injury or deathifa
seat belt is unfas tened whil ethe vehicle
is in motion
If th es eat belt is released while thev ehicle is
in motion, thec hild restra int sy stem is no
longer cor rectly secure d. Thechild seat
saf etyf eatur eisd eactivated and thes eat
belt is dr awnina bitbyt he inertia reel.
Occupant saf ety 47

It istherefor enotpossible toengag ethe seat
belt again.
#Pull overand stop thev ehicle safely as
soon as possible, paying attention to
ro ad and traf ficc onditions.
#Activat ethe child seat saf etyf eature
again and cor rectl ys ecu rethec hild
re stra int sy stem.
When enabled, thes pecial seatbelt retractor
ensures that thes eat belts of ther ear seats do
no ts lac keno nce thec hild restra int sy stem is
secured.
Alw aysc ompl ywitht he manufacturer's ins talla‐
tion instructions when ins talling and removing
th ec hild restra int sy stem.
Ac tivatin gthe child seat saf etyf eature:
#Pull thes eat belt out fully and le tthe inertia
re el retract it again.
When thec hild seat saf etyf eatur eisa ctiva‐
te d,you should hear aratcheting sound.
#Pusht hechild restra int sy stem down until
th es eat belt sits tightly. Deactivating the
child seat saf etyf eature:
#Pres sthe release button of thes eat belt
buckle.
#Hold thes eat belt tonguea nd guid ebackt o
th es eat belt outlet.
LATC H-type (ISOFIX) child seat attachment
Note sonL ATCH-type (ISOFIX) child seat
attachments
& WARNING Risk of injury when usingthe
LA TC H-type (ISOFIX )child restra int sys‐
te ma ndexc eeding thep ermissible
we ight
LA TC H-type (ISOFIX )child restra int sy stems
do no toffer suf ficient pr otection forc hildren
we ighingm oret han 49 lb (22 kg)w ho are
secured using thes eat belt integrated in the
ch ild restra int sy stem.
Fo re xamp le,thec hild ma ynotbe restra ined
cor rectly in thee vent of an accident. This
poses an increased risk of injur yoreven
fa ta linjur y.
#Ifth ec hild weighs mor ethan 49 lb
(22 kg),onl yuseLATC H-type (ISOFIX)
ch ild restra int sy stems wit hwhichthe
ch ild is secured using thes eat belt of
th ev ehicle seat.
#Also secur ethe child restra int sy stem
wit hthe TopT ether belt, if available.
When ins talling achild restra int sy stem, be sure
to obser vethem anufacturer's ins tallation
instructions and thei nstruction sfor cor rect use
of thec hild restra int sy stem.
LA TC H-type (ISOFIX )isastandardized securing
sy stem fors pecialr estraint sy stems. LATC H-type
(ISOFIX )child restra int sy stems ar eappr oved in
accordance wit hECE R-44 .
Onl ychild restra int sy stems that ha vebeen
appr ovedina ccordance wit hECE R-44 maybe
attached toLATC H-type (ISOFIX )mounting
brac kets.
48
Occupant safe ty