MERCEDES-BENZ SLC ROADSTER 2019 Service Manual

Res
traint system warn inglamp
The functi onsofthe restrai ntsystem are
checke dafte rthe igniti onisswi tched onand
at reg ular inter valswh ile the engi neisrunni ng.
The refo re,mal functi onscanbedete cted in
goo dtime .
The 0075 restrai ntsystem warning lamp on
the instru ment cluster lights upwhen the igni-
tion isswi tched on.Itgoe sou tno later than a
few seco ndsafterthe vehicleis star ted. The
comp onents ofthe restrai ntsystem arein
ope rationa lrea diness .
A mal functi onhasoccu rredifthe 0075
res trai ntsystem warning lamp:
R doe snot light upafte rthe igniti onis
swi tched on
R doe snot gooutafte ra few seco ndswith the
engi nerunni ng
R lights upagain wh ile the engi neisrunni ng G
WARNI
NG
If the restrai ntsystem ismal functi oning,
res trai ntsystem components maybetrig -
ger edunintentio nallyor may notdeployas
intend edduring anacci dent. Thiscan affect
for exa mpl ethe Emerg encyTensioning
Devi ceorthe airba g. Thi spos esan
incre ased riskof inju ryor eve nfata linju ry.
Have therestrai ntsystem checke dand
rep aired inaqu alifi ed spe cialist wo rksho p
as soo nas pos sible. PA
SSE NGER AIRBAG indic ator lamp PASSENG
ERAIR BAG ONindicator lamp 0043
and PASSENG ERAIR BAG OFFindicator
la mp 0044are partof the Occu pant Clas sif ica -
tion System (OCS). The
indicator lamps displ aythe statu sof the
front-p asseng erfront airba g.
R PASSENG ERAIR BAG ONlights upfor 60
seco nds, subse quently bothindicator lamps
are off(PASSEN GERAIRBAG ONand OFF) :
the front-p asseng erfront airba gis ab leto
dep loyin the eventofan acci dent.
R PASSENG ERAIR BAG OFFlights up:the
front-p asseng erfront airba gis dea ctiva ted.
It wi llthen notbedep loye din the eventof
an acci dent.
If the PASSENG ERAIR BAG ONindicator lamp
is off, only thePASSENG ERAIR BAG OFFindi-
cato rla mp showsthe statu sof the front-
pa sse nger front airba g. The PASSENG ERAIR
BAG OFFindicator lamp may belit continu -
ou sly orbe off.
Depe nding on the person inthe front-
pa sse nger seat,the front-p asseng erfront air
ba gmus tei ther bedea ctiva tedorena bled;
see thefollowi ng points. Youmus tmake sure
of this both before and during ajou rney .
R Chi ldre nin achi ldres train tsys tem:
wh ethe rthe front-p asseng erfront airba gis
ena bled ordea ctiva teddepends onthe
insta lled childres trai ntsystem, andtheage
and size ofthe child.The refo re,besure to
obs erve thenotes onthe "Occup antClas sif i-
cati onSys tem (OCS)"(Ypage 46)and on
"C hildre nin the vehicle" (Y page 53).
The reyouwi llal so find instr uctions onrea r-
wa rdand forw ard-faci ngchildres trai ntsys-
tems onthe front-p asseng ersea t.
R Allothe rpers ons:dep endi ngon the classi-
fica tion ofthe person inthe front-p asseng er
sea t,the front-p asseng erfront airba gis
ena bled ordea ctiva ted(Ypage 46). Be
su re to obs erve thenotes on"Se at
bel ts“ (Ypage 39)and "Airba gs"
(Y page 43). Thereyoucan also find infor-
mati ononthe corre ctsea tpos ition. Se
at belts
In troduc tion Sea
tbel tsare the most effective meansof
res tricti ngthe move ment ofveh icleoccu pants
in the eventofan acci dent orthe vehiclerol l-
ing over.Thi sred uce sthe riskof veh icleoccu -
pa nts comi nginto conta ctwith parts ofthe
veh icleinter ioror bei ng ejecte dfrom thevehi-
cle .Furth ermore,the seatbel thel pstokeep Oc
cupan tsafe ty
39Safety Z

the
vehicleoccu pant inthe best po sitio nin
rel ation tothe airba g.
The seat beltsy ste mcomp rises:
R Sea tbe lts
R Emer gency Tensi oni ng Devi cesand seat belt
for ce limi ters
If the seat beltis pu lled quickl yor sha rplyby
the seat beltgu ide, the inertia reello cks. The
be ltstra pcann otbe extra ctedanyfurthe r.
The Emer gency Tensi oni ng Devi cetighte nsthe
se at beltin an acc ident, pulling the beltclo se
ag ainst the body.How everit do es not pullthe
veh icleoccu pant back inthe directi onofthe
ba ckre st.
The Emer gency Tensi oni ng Devi cedoes not
corr ectaninco rrectseat positio nor the rout-
ing ofan inco rrectly faste ned seat belt.
Wh entrig gered ,a se at beltfor ce limi ter helps
to red uce theforce exe rted bythe seat belton
the vehicleoccu pant.
The seat beltfor ce limi ters aresy nchro nized
wi th the frontairba gs which absor bpa rtof
the decel era tionfor ce. Thiscan reduce the
for ce exe rted onthe vehicleoccu pants durin g
an acc ident.
! If
the front-pa ssenge rse at isnot occu pied ,
do not engagethe seat belttong ueinthe
bu ckle onthe front-pa ssenge rse at. Othe r-
wi se ,in the eventofan acc ident theEmer -
ge ncy Tensi oni ng Devi ceand theside
im pact airba g,in ad ditio nto othe rsy ste ms,
ma ybe trig gered and have tobe rep laced .
Impo rtant safety notes The
useof seat belts and childres traint sys-
tems isreq uired bylaw in:
R all50 states
R the U.S. territories
R the Distric tof Co lumbi a
R allCa nad ian pro vinces
Even where thisis not required bylaw, allveh i-
cle occu pants should corr ectlyfa ste nthe ir
se at belts befor esta rtin gthe journey . G
WA
RNING
If the seat beltis not worncorr ectly,itcan-
not perfo rm itsinte ndedpro tecti vefunctio n.
An inco rrectly faste ned seat beltcan also
cau seinju ries,for exa mpl e,inthe eventof an
acc ident orwh en bra king orcha nging
di rec tionab ruptl y.Th ispo sesan incr eased
ris kof inju ryor eve nfa tal inju ry.
Alw aysens uretha tal lveh icleoccu pants
ha ve the irse at belts faste ned correctlyand
ar esitting properly.
The comp onents ofthe restraint syste mwo rk
in conju nctionwi th each othe r.Th ey can only
de ploy the irpro tecti vefunctio nif, at alltim es,
al lveh icleoccu pants:
R ha ve faste ned theirse at belts corr ectly
(Y page 41)
R ha ve the seat and head res traint adjus ted
pro perly (Ypage 85) G
WA
RNING
The seat beltdo es not offerthe intended
le vel ofpro tecti onifyo uha ve not mov edthe
ba ckre stto an almos tver tica lpo sitio n.
Wh enbra king orinthe eventofan acc ident,
yo ucou ldslid e und erne aththe seat beltand
su sta inab do men orneck injuries,for exa m-
pl e. Thispo sesan incr easedris kof inju ryor
eve nfa tal inju ry.
Adju stthe seat pro perly befor ebe ginning
yo ur jou rney .Alw aysens uretha tthe back-
res tis in an almos tver tica lpo sitio nand that
the shoulde rse ctio nof your seat beltis
rou ted across thecente rof your sho ulde r. G
WA
RNING
Pe rso nsless tha n5 ft (1.5 0m) tallcann ot
we arthe seat beltcorr ectlywi thou tan addi-
tio nal and suita ble res traint syste m. Ifthe
se at beltis not worncorr ectly,itcann otper-
for mits inte ndedpro tecti vefunctio n.An
inco rrectly faste ned seat beltcan also cau se
inju ries,for exa mpl e,inthe eventofan acc i-
de nt or wh en bra king orcha nging directi on
ab ruptl y.Thi spo sesan incr easedris kof
inju ryor eve nfa tal inju ry.
For thisrea son ,al wa yssecur epe rso ns
und er5ft (1.5 0m) tallin suita ble ad ditio nal
res traint syste ms. 40
Oc
cupant safetySafe ty

If
achild younger thantwelve yearsold and
under 5ft (1.5 0m) inheight istravelin gin the
vehic le:
R always securethe child inachild restraint
syst emsuitable forthis Merc edes- Benz
vehic le.The child restraint systemmust be
appropr iatetothe age, weight andsize of
the child.
R always observethe instruct ions andsafet y
not eson "Children inthe vehic le"
(Y page 53)inaddition tothe child
rest raint systemmanuf acturer' sinst allation
and operat inginst ruct ions
R always observethe instruct ions andsafet y
not eson the "Occ upant Classific ationSys-
tem (OCS)" (Ypage 46) G
WARN
ING
The seat belts maynotperf orm theirint en-
ded protective func tion if:
R the yare damaged, modified,extreme ly
dirt y,bleache dor dyed
R the seat beltbuck leisdamaged or
ext reme lydirt y
R the Emergen cyTens ionin gDev ices, belt
anc horage sor iner tiareels havebeen
modif ied.
Seat belts maybedamaged inan acc ident ,
althoug hthe damage maynotbevisible, e.g.
due tosplint ersofglass. Modifie dor dam-
aged seatbelts maytearorfail, e.g. inan
acc ident .Modifie dEm ergen cyTens ionin g
Dev ices could accident allytrigger orfail to
deploy whennecessary. Thisposes an
inc reased riskofinjury oreven fatalinj ury.
Never modifythe seat belts ,Em ergen cyTen-
sion ingDev ices, beltanchorage sand inertia
reels. Make surethattheseat belts are
undamage d,not worn outand clean .Follow-
ing anacc ident ,have theseat belts checked
immed iatelyataqualified specialist work-
shop.
Only useseat belts thathave been approv ed
for your vehic leby Merc edes- Benz. Prop
eruse oftheseat belts Obser
vethe safet ynot eson the seat belt
(Y page 40).
Ev ery vehic leocc upant mustobservethe fol-
lowing notestoens ure aproper lyworn seat
belt canprov idefull prot ection. Also make
sure thatallvehic leocc upant sare always
wearin gthe seat beltcorrectlywhile thevehi-
cle isin mot ion.
When fastenin gthe seat belt, always make
sure that:
R the seat beltbuck leton gue isinse rted only
int othe belt buck lebelon gingtothat seat
R the seat beltispulled tightacro ssyour body
Av oid wearin gbulky clothing ,e.g. awint er
coat .
R the seat beltisnot twist ed
Only thencan theforces which occurbe dis-
tr ibuted overthearea ofthe belt.
R the shoulder sectionofthe belt isrout ed
acro ssthe centerofyour shoulder
The shoulder sectionofthe seat beltshould
not touc hyour neckor be rout edunder your
arm orbehin dyour back.
R the lapbelt istaut andpasses acrossyour
lap aslow down aspossible
The lapbelt must always berout edacro ss
your hipjointsand notacro ssyour abdo-
men .This applies particularly topregn ant
women .If nec essary, pushthelapbelt down
to your hipjointand pullittigh tusing the
shoulder sectionofthe belt.
R the seat beltisnot rout edacro sssharp,
point edorfragile objects
If you have such itemslocat edon orinyour
clot hing ,e.g. pens ,keys oreyeglasses ,
sto rethe seinasuitable place.
R only oneperso nis using aseat belt
Inf ant sand childr enmust nevertravel sit-
tin gon the lapofavehic leocc upant .In the
even tof an acc ident ,the ycould becrus hed
betwee nthe vehic leocc upant andseat belt.
R obje ctsare neversecur edwith aseat beltif
the seat beltisalso being usedbyone of
the vehic le'soccupant s
Also ensure that thereare neverobje cts
betwee naperso nand theseat, e.g.cush-
ions .
Seat belts areonly intended tosecur eand
rest rain vehic leocc upant s.Always observethe
not esinthe "Stowage options/com partmen ts" Occupa
ntsaf ety
41Safety Z

section
forsecuring objects,luggageorloads
(Y page 225).
Fastening seatbelts Observe
thesafety notesonthe seat belt
(Y page 40)and thenotes oncorrect useof
seat belts (Ypage 41). Basic
illustration
X Adjust theseat (Ypage 85).
The seat backrest mustbeinan almost
upright position.
X Pull theseat beltsmoothly outofseat belt
guide 0087and engage belttongue 0044into
belt buckle 0043.
The seat beltonthe driver’s seatandthe
front -passenger seatmaybetightened auto-
matically ,see "Belt adjustment"
(Y page 42).
X Ifnecessary, pullupon the shoulde rsection
of the seat belttotighten thebelt across
your body.
In order toattach thechild restraint system
securely inthe vehicle, theseat beltonthe
front -passenger seatisequip pedwith aspe-
cial seat beltretractor .Further information on
the "Special seatbeltretractor "(Y page 54).
Releasing seatbelts !
Make
surethattheseat beltisfully rolled
up. Otherwise, theseat beltorbelt tongue
will betrapped inthe door orinthe seat
mechanism. Thiscould damage thedoor,
the door trimpanel andtheseat belt. Dam- aged
seatbelts cannolonger fulfilltheir
protective functionandmust bereplaced.
Visit aqual ified speciali stworkshop.
X Press therelease buttoninthe belt buckle,
hold thebelt tongue firmlyandguide the
belt back.
Seat beltadjustment Mercedes-AMG
vehicles:the "belt adjust-
ment" function isnot avail able.
The belt adjustment isaconven iencefunction
integrated intoPRE-SA FE®
.With thisfunction,
the driver's andfront -passenger seatbelts are
adjusted tothe upper bodyofthe vehicle
occupant.
The seat beltstrap willslightly tightenif:
R the belt tongue isinserted intothebuckle
and
R the ignition isswitched on
The seat beltadjustment willapply acertain
tightening forceifany slack isdetected
between thevehicle occupant andtheseat
belt. Donot grab holdofthe seat belt.
The belt adjustment canbeswitched onand
off using theon-board computer
(Y page 178).
Belt warning forthe driver andfront
passenger The
0076 seatbeltwarning lampinthe instru-
ment cluster isareminder thatallvehicle
occupants mustweartheirseatbelts. Itmay
light upcont inuously orflash. Inaddition,
there maybeawarning tone.
Regard lessofwhether thedriver's seatbelt
has alread ybeen fastened, the0076 seatbelt
warning lamplights upfor sixseconds each
time theengine isstarted. Ifthe doors are
closed andthedriver's orfront -passenger seat
belt hasnotbeen fastened, the0076 seatbelt
warning lamplights upagai nafter thesixsec-
onds. Assoon asthe driver's andfront -
passenger seatbelts arefastened orafront
door isopened again,the 0076 seatbeltwarn-
ing lamp goesout.
If the driver's seatbeltisnot fastened after
the engine isstarted, anadditional warning
tone willsound. Thewarning toneswitches off
after sixseconds oronce thedriver's seatbelt
is fastened. 42
Occ
upant safetySafety

If
the vehicle 'sspeed exceeds 15mph
(25 km/h) onceandthedriver's andfront-
passe ngerseatbelts arenot fastened, awarn-
ing tone sounds. Awarning tonealsosounds
with increasing intensityfor60seconds or
until thedriver orfront passe ngerhave fas-
tened theirseatbelts.
If the driver orfront passe ngerunfasten their
seat belts duringthe journey, theseat belt
warning isactivated again. Air
bags
Introductio n The
installa tionpoint ofan airb agcan berec-
ognized bythe AIRBAG marking.
An airb agcomplements thecorrectly fastened
seat belt. Itis no substitu tefor the seat belt.
When deployed ,an airb agcan increase the
protection providedfor the respective vehicle
occupant.
Not allairb ags aredepl oyed inan accident.
The variou sairb ags work indepe ndently of
each other (Ypage 50).
However, nosystem availabletoday cancom-
pletel yelimi nate injuries andfatali ties.
It is also notpossib leto rule outarisk ofinjury
cause dby an airb agdue tothe high speed at
which theairbagmust bedepl oyed .
Important safetynotes G
WARNING
If you donot sitinthe correct seatpositio n,
the airbag cannot protect asintended and
could evencause additional injurywhen
depl oyed .This poses anincreased riskof
injury oreven fatalinjury.
To avoid hazardo ussitua tions, always make
sure thatallofthe vehicle 'soccupants:
R have fastened theirseatbelts correctly,
includi ngpregnant women
R are sitting correctly andmaintain the
greatest possibledistance tothe airbags
R follow thefollow inginstructions
Alway smake surethatthere arenoobjects
betwee nthe airbag and thevehicle 'soccu-
pants. All
vehicle occupants mustobserve thefollow -
ing notes toavoid risksposed bythe airbag
when itdepl oys.
R Adjust theseats properl ybefore beginning
you rjourney. Alwaysmake surethatthe
seat isin an almos tupri ghtpositio n.The
center ofthe head restraint mustsupport
the head atabou teye level .
R Move thedriver's andfront-passenger seats
as far back aspossib le.The driver's seat
positio nmust allow the vehicle tobe driven
safel y.
R Only holdthesteering wheelonthe outsid e.
This allows theairbagtobe fullydepl oyed .
R Alway slea naga inst thebackrest whiledriv-
ing. Donot leanforward orlea naga inst the
door orside window .You may otherwise be
in the depl oyment areaofthe airbags.
R Alway skeep yourfeet inthe footwell in
front ofthe seat. Donot putyourfeet onthe
dashb oard,forexample .Your feetmay oth-
erwis ebe inthe depl oyment areaofthe air-
bag.
R For this reason, always secure persons less
than 5ft (1.50 m)tall insuita blerestraint
systems. Uptothis heigh t,the seat belt
cannot beworn correctly.
If achil dis traveling inyour vehic le,also
obse rvethe followi ngnotes:
R Alway ssecure childrenunder twelve years
of age and less than 5ft (1.50 m)tall insuit-
abl echild restraint systems.
R Secure achild tothe front-passenger seat
only when thefront-passenger frontairbag
is deactiva ted,andthen onlyinarearwa rd-
facing childrestraint system.Thefront-
passe ngerfront airbagisdeactiva tedwhen
the PASSENGER AIRBAG OFFindicator
lamp islit continuously (Ypage 39).
R Alway sobserve theinstructions andsafety
notes onthe "Occupa ntCla ssifica tionSys-
tem (OCS)" (Ypage 46)and on"Ch ildre n
in the vehicle "(Y page 53)inaddi tion to
the child restraint systemmanufacture r's
installa tionandopera tinginstructions.
Objects inthe vehic leinterio rmay restrict
the airbag fromfunctio ningcorrec tly.To
avoid risksresultingfrom thespeed ofthe air-
bag asitdepl oys, vehicle occupants must
ensure thefollow ingpoints. Occ
upant safety
43Safety Z

Befor
ecomme ncingyour jour ney,ensu rethat:
R there arenopeo ple, ani mal sor obje cts
betw eenthevehi cleoccu pants and anair-
ba g
R there arenoobje ctsbetw eentheseat,doo r
and B-pil lar
R no acce ssories,such ascup holder s,are
atta ched tothe vehi clewithin thedeploy-
ment areaof an airba g,e.g. todoo rsor sid e
wi ndow s
R no hea vy,sha rp-ed gedorfrag ile obje ctsare
in the pocke tsof your cloth ing.Store such
obje ctsinasui tabl eplace G
WARNI
NG
If yo umodi fythe cover ofan airba gor affi x
obje ctssuch assticke rsto it,the airba g
can nolong erper form itsintend edfuncti on.
The reisan incre asedrisk ofinju ry.
Neve rmodi fythe cover ofan airba gor affi x
obje ctstoit. G
WARNI
NG
Sensor sto control theairba gs are loca ted
in the doors.Mod ificati ons orwor knot per-
forme dcorre ctlytothe doorsor doo rpa nel-
ing, aswellas damag eddoo rs,can leadto
the functi onofthe senso rsbei ng imp aired .
The airba gs mig htthere forenotfuncti on
prop erlyany more .Co nseq uently ,the air
ba gs cannot protectvehi cleoccu pants as
they aredesigne dto do. Thereisan
incre asedrisk ofinju ry.
Neve rmodi fythe doorsor parts ofthe
doo rs.Alw ayshav ewor kon the doorsor
doo rpa neli ngcarri edoutat aqu alifi ed spe -
cia list wor kshop .
Fro ntair bag s !
Do
not place heavyobje ctsonthe front-
pa sse nger seat.Thi scou ldcau sethe sys-
tem toidentify theseatas bei ng occu pied.
In the eventofan acci dent, therestra int
sy stems onthe front-pa ssenger sidemay be
trigg eredand haveto be rep laced. Drive
r'sairba g0043 dep loysin front ofthe
stee ring wheel.Front-pa ssenger front air
ba g0044 dep loysin front ofand above theglove
box.
Whe ndep loyed, the front airba gs offe rad di-
tiona lhea dand thora xprote ction forthe occu -
pa nts inthe driver' sand front-pa ssenger
sea ts.
The PASSENGER AIRBAG OFFindicator lamp
infor msyouab ou tthe statu sof the front-
pa sse nger front airba g(Y page 39).
The front-pa ssenger front airba gwi llonly
dep loyif:
R the system, based onthe OCS weigh tsen-
sor readings, detectsthat thefront-
pa sse nger seatis occu pied (Ypage 46).
The PASSENGER AIRBAG OFFindicator
la mp isnot lit (Y page 46)
R the restra intsystem control unitpre dicts a
hig hacci dent severity
Kn ee bag s Drive
r'sknee bag0043 dep loysund erthe stee r-
ing colu mnand front-pa ssenger knee bag0044
und erthe glovebox. Thedriver' sand front-
pa sse nger knee bags are trigg eredtoge ther
wi th the front airba gs. 44
Oc
cupan tsafe tySafe ty

The
driver's andfront -passenger kneebags
offer additional thigh,kneeandlower legpro-
tect ion.
Side impa ctair bags G
WARNIN
G
Unsuitable seatcovers canobstruct orpre-
vent deployment ofthe airbags integr ated
into theseats. Consequently, theairbags
cann otprotec tvehicle occupant sas they
are designed todo. Inaddition, theopera-
tion ofthe occupant classification system
(OCS) couldbeadversely affected.This
poses anincreased riskofinjury oreven
fatal injury.
You should onlyuseseat covers thathave
been approved forthe respect iveseat by
Mercedes- Benz. Side
impact airbags 0043deploy nexttothe
outer bolster ofthe seat backrest .
When deployed, theside impact airbag offers
additional thoraxprotection.However, itdoes
not protec tthe:
R head
R neck
R arms
If the restr aintsystem controlunit detect sa
side impact, theside impact airbag is
deployed onthe side onwhich theimpact
occurs.
The side impact airbag onthe front passenger
side deploys underthefollowing conditions:
R the OCS system detectsthat thefront
passenger seatisoccupied or
R the seat beltbuckle tongue isengaged in
the belt buckle ofthe front passenger seatIf
the belt tongue isengaged inthe belt
buckle, theside impact airbag onthe front
passenger sidedeploys ifan appropriate acci-
dent situation occurs.Inthis case, deployment
is independent ofwhether thefront passenger
seat isoccupied ornot .
Head airbags Head
bags0043deploy inthe area ofthe side
windows atthe front .
When deployed, thehead bagenhanc esthe
level ofprotec tionforthe head. However, it
does notprotec tthe:
R chest
R arms
If the restr aintsystem controlunit detect sa
side impact, thehead bagisdeployed onthe
side onwhich theimpact occurs.
If the system determin esthat they canoffer
additional protectiontothat provided bythe
seat belt, ahead bagmay bedeployed inother
accident situations (Ypage 50).
The head bagonthe front -passenger side
deploys underthefollowing conditions:
R the OCS system detectsthat thefront -
passenger seatisoccupied or
R the seat beltbuckle tongue isengaged in
the belt buckle ofthe front -passenger seat
If the belt tongue isengaged inthe belt
buckle, thehead bagonthe front -passenger
side deploys ifan appropriate accidentsitua-
tion occurs. Inthis case, deployment isinde-
pendent ofwhether thefront -passenger seatis
occupied ornot . Occupant
safety
45Safety Z

Occupant
Classification System
(OCS)
Introd uction The
Occupant Classification System(OCS)cat-
egorizes theperson inthe fron t-passenger
seat. Depen dingonthat result, thefron t-
passenger frontair bag and front-passenger
kn ee bag areeither enabled ordeactivat ed.
The system doesnotdeactivat e:
R the side impact airbag
R the headbag
R the Emer gencyTension ingDevic es
Requ irement s To
be classified correctly,the fron tpassenger
must sit:
R with theseat beltfasten edcorr ectly
R in an almost upright position withtheir back
against theseat backr est
R with their feetrestin gon the floor, ifpossi-
ble
If the fron tpassenger doesnotobserve these
con ditions ,OCS mayproduce afalse classifi-
cation ,e.g. because thefron tpassenger:
R tran sfers theirweight bysupportin gthem-
selves onavehicle armrest
R sits insuch away that their weight israised
from theseat cushion
If you installachild restraint system onthe
fron t-passenger seat,besure toobserve the
corr ectposition ingofthe child restraint sys-
tem. Never placeobjectsunder orbehind the
child restraintsystem, e.g.acushion. The
ent irebase ofthe child restraint system must
alway srest onthe seat cushion ofthe fron t-
passenger seat.Thebackr estofthe forward-
facing childrestraint system mustlieasflat as
possible againstthebackr estofthe fron t-
passenger seat.
The child restraintsystem mustnottouch the
roof orbe subject edtoaload bythe head
rest raint .Adj ust the angle ofthe seat backr est
and thehead restraintposition accordingly.
Only thencanOCS beguaranteed tofunc tion
corr ectly.Always observe thechild restraint
system manufact urer'sinstallation andoperat-
ing inst ruct ions. Occupant
Classification Systemopera-
tion (OCS) 0043
PAS SENGER AIRBAG ONindicat orlamp
0044 PAS SENGER AIRBAG OFFindicat orlamp
The indicat orlamps informyou whether the
fron t-passenger frontair bag isdeactivat edor
enabled.
X Press theStart/ Stop button onceor twice,
or turn theSmart Keytoposition 0047or0048 in
the ignition lock.
The system carriesoutself-diagn ostics.
The PASSENGER AIRBAG OFFand
PAS SENGER AIRBAG ONindicat orlamps must
light upsimultaneously forapproximat elysix
secon ds.
The indicat orlamps display thestatusofthe
fron t-passenger frontair bag.
R PAS SENGER AIRBAG ONlights upfor
60 secon ds,subsequently bothindicat or
lamps areoff(PASS ENGERAIR BAG ONand
OFF): thefron t-passenger frontair bag is
able todeploy inthe event ofan acciden t.
R PAS SENGER AIRBAG OFFlights up:the
fron t-passenger frontair bag isdeactivat ed.
It will then notbedeployed inthe event of
an acciden t.
If the PAS SENGER AIRBAG ONindicat orlamp
is off, only thePAS SENGER AIRBAG OFFindi-
cator lampshows thestatusofthe fron t-
passenger frontair bag. ThePASSENGER AIR
BAG OFFindicat orlamp maybelitcon tinu-
ously orbe off.
If the statusofthe fron t-passenger frontair
bag changes whilethevehicle isin motion ,an
air bag display message appearsinthe instru-
ment cluster (Ypage 191). When thefron t-
passenger seatisoccupied, alwayspay atten -
tion tothe PAS SENGER AIRBAG OFFindicat or
lamp. Beaware ofthe statusofthe fron t- 46
Occupant
safetySafet y

passenger
frontair bag both before andduring
the journ ey. G
WARN
ING
If the PAS SENGER AIRBAGOFF indicat or
lamp islit, the fron t-passenger frontair bag
is disabled. Itwill notbedeployed inthe
event ofan acciden tand cann otperfor mits
int ended protective func tion.A person inthe
fron t-passenger seatcould then,for exam-
ple, come intocon tact with thevehicle's
int erior, especially ifthe person issitt ing too
close tothe dashboard. Thisposes an
incr eased riskofinjury oreven fatalinjury.
When thefron t-passenger seatisocc upied,
always ensure that:
R the classific ationofthe person inthe
fron t-passenger seatiscorr ectand the
fron t-passenger frontair bag isenabled or
disabled inaccor dance withtheperson in
the fron t-passenger seat
R the fron t-passenger seathasbeen moved
back asfar back aspossible.
R the person isseated correctly.
Make sure,bothbefore andduring thejour-
ney, thatthestatusofthe fron t-passenger
fron tair bag iscorr ect. G
WARN
ING
If you secure achild inarearward-f acing
child restraint system onthe fron t-
passenger seatandthePAS SENGER AIR
BA GOFF indicat orlamp isoff, thefron t-
passenger frontair bag candeploy inthe
event ofan acciden t.The child could be
str uck bythe airbag. Thisposes an
incr eased riskofinjury oreven fatalinjury.
Make surethatthefron t-passenger frontair
bag hasbeen deactiv ated.ThePASSENGER
AIR BAGOFF indicat orlamp must belit.
NEV ERuse arearward-f acingchildrestraint
on aseat prote cted byan ACTIVE FRONT
AIRB AGinfron tof it;DE ATH orSERIOUS
INJURY tothe child canoccur.
If the PAS SENGER AIRBAGOFF indicat orlamp
stays off,donot installarearward-f acingchild rest
raint system onthe fron t-passenger seat.
You canfind more information onOCS under
"Problems withtheOcc upant Classification
System "(Y page 49). G
WARN
ING
If you secure achild inaforward- facingchild
rest raint system onthe fron t-passenger seat
and youposition thefron t-passenger seat
too close tothe dashboard, inthe event of
an acciden t,the child could:
R come intocon tact with thevehicle's inte-
rior ifthe PAS SENGER AIRBAGOFF indi-
cator lampislit, for example
R be struck bythe airbag ifthe
PAS SENGER AIRBAGOFF indicat orlamp
is off
This poses anincr eased riskofinjury or
even fatalinjury.
Move thefron t-passenger seatasfar back
as possible. Alwaysmakesurethatthe
shoulder beltstrap iscorr ectlyrouted from
the vehicle beltguide tothe shoulder belt
guide onthe child restraint system. The
shoulder beltstrap must berouted forwards
and downwards fromthevehicle beltguide.
Always observe thechild restraint system
manufact urer'sinstallation instruct ions.
If OCS determ inesthat:
R The front-passenger seatisunocc upied, the
PAS SENGER AIRBAGOFF indicat orlamp
lights upafter theself-t estand remains lit.
This indicat esthat thefron t-passenger front
air bag isdeactiv ated.
R The front-passenger seatisocc upied bya
child ofup totwelve monthsold, inastan d-
ard child restraint system, thePAS SENGER
AIR BAGOFF indicat orlamp lights upafter
the self-t estand remains lit.This indicat es
that thefron t-passenger frontair bag is
deactiv ated.
But even inthe case ofatwelve- month-old
child, inastan dard child restraint system,
the PAS SENGER AIRBAGOFF indicat or
lamp cangoout after theself-t est.This indi-
cates thatthefron t-passenger frontair bag
is activ ated. Theresult ofthe classific ation
is dependen ton, among otherfactors, the
child restraint system andthechild's stat- Occupant
safety
47Safet y Z

ure.
Makesure that theco nd ition sfor aco r-
rec tclas sificat ion are met .If th e
PA SS EN GER AIR BA GOF Find icat orlamp
rem ains off,do notins tall ach ild res traint
syst emonthefron t-pass enger seat .
R The fron t-pass enger seat isoc cupi edbya
per son ofsmal lerstatur e(e. g.ate en ager or
smal ladult ),th ePA SS EN GER AIR BA GOF F
ind icat orlamp either light sup and remains
lit aft ertheself -test depen dingon theres ult
of theclas sificat ion or,alte rnativ ely, goes
out .
- Ifth ePA SS EN GER AIR BA GOF Find icat or
lamp isoff ,mov eth efron t-pass enger seat
as far back asposs ible.
- Ifth ePA SS EN GER AIR BA GOF Find icat or
lamp islit,a per son ofsmal lerstatur e
sho uld notuse thefron t-pass enger seat .
R The fron t-pass enger seat isoc cupi edbyan
adult oraper son ofcorrespo nding statur e,
th ePA SS EN GER AIR BA GOF Find icat or
lamp goesoutaftertheself -test .This indi-
cat esthat thefron t-pass enger fron tair bag
is act ivat ed.
If ch ildr enare traveli ngintheveh icle,be sure
to obse rveth eno teson "Childr enintheveh i-
cle "(Y page 53).
When theOc cupan tClassi ficatio nSys tem
(OCS )is malf unctionin g,thered 0075 restraint
syst emwarn inglamp ontheins trumen tclus -
te rand thePA SS EN GER AIR BA GOF Find ica-
to rlamp lightupsim ultan eousl y.The fron t-
pass enger fron tair bag isdeac tivate din this
cas eand does notdeplo ydurin gan acc iden t.
Hav eth eOc cupan tClassi ficatio nSys tem
(OCS )ch eck edand repaired immediat elyata
qualif iedspec ialist workshop.Mer cedes-Ben z
rec omm ends that you useanauth orized
Mer cedes-Ben zCen terfor this purpo se.
If th efron t-pass enger seat ,th eseat cover or
th eseat cushion aredamag ed,have thene c-
ess ary repairwork carried outataqualif ied
spec ialist workshop.Mer cedes-Ben zrec om-
men dsthat you useanauth orizedMer cedes-
Ben zCen terfor this purpo se.
For safe tyreas ons,Mer cedes-Ben zrec om-
men dsthat you onlyuse seat accessorie sth at
have been approvedby Mer cedes-Ben z.
De ploym entof thedriv er'sair bag does not
mean that thefron t-pass enger fron tair bag
deplo ysas well. TheOccupan tClassi ficatio n
Sys tem (OCS )cat egor izesth eoc cupan ton the
fr on t-pass enger seat .De pen dingon that res
ult, thefron t-pass enger fron tair bag is
eit her enabled ordeac tivate d.
Self -check oftheOccup antClas sifica-
tion System (OCS) G
DANG
ER
If th ePA SS EN GER AIR BA GOF Fand
PA SS EN GER AIR BA GON indicat orlamps do
no tbot hlight updurin gth eself -test ,th e
syst emismalf unctionin g.The fron t-
pass enger fron tair bag migh tbe trigge red
unin tent ion ally ormigh tno tbe trigge redat
all intheeve ntofan acc iden twit hhigh
dec eler ation.This pose san increas edriskof
inj ury oreve nfat alinj ury.
In this cas eth efron t-pass enger seat may
no tbe used. Donotins tall ach ild res traint
syst emonthefron t-pass enger seat .Hav e
th eOc cupan tClassi ficatio nSys tem (OCS )
ch eck edand repaired immediat elyata
qualif iedspec ialist workshop. G
WAR
NING
If th ePA SS EN GER AIR BA GOF Find icat or
lamp remains litaft ertheself -test ,th efron t-
pass enger fron tair bag isdeac tivate d.Itwill
no tbe deplo yedintheeve ntofan acc iden t.
In this cas e,thefron t-pass enger fron tair
bag cannotper formits intended protective
fun ction ,e.g .when aper son isseat edinthe
fr on t-pass enger seat .
That person could, forexample ,co me into
co ntact withth eveh icle'sint erio r,espe cially
if th eper son issit tin gto oclo setothedash-
boar d.This pose san increas edriskof injury
or eve nfat alinj ury.
When thefron t-pass enger seat isoc cupi ed,
always ensure that:
R theclas sificat ion oftheper son inthe
fr on t-pass enger seat isco rrect and the
fr on t-pass enger fron tair bag isen abled or 48
Occup
antsafetySaf ety