MERCEDES-BENZ SL ROADSTER 2019 Service Manual

Door
controlpa nel Fun
ction Pa
ge 0043
Ope
nsthedoo r 80
0044
00360037Unlocks/lock
s
the vehicle 80
0087
Adjusts
theseats 97
0085
008D
003700380040
Stores seat,exteri ormirr or
and steering column adjust-
ment settings 107
0096
Adjuststhe front-
pa sse nger seatfrom the
dri ver’ ssea t 99 Fun
ction Pag
e 0083
008A
Opens/clo sesthe
trunk lid 85
0084
006200700071
Adjuststhe
exteri ormirr orselectri cally 105
006B
0062
Opens/clo sestheside
wi ndow s 87Do
orcontrol panel
39Atagl anc e

Panic
alarm X
To activate: press0033button 0043for at
least onesecond.
A visual andaudib lealarm istriggered ifthe
alarm system isarmed.
X To deactivat e:press 0033button 0043again.
or X Insert theSmartK eyinto theignition lock.
or X Press theKEYLE SS-GO Start /Stopbutton.
The KEYLE SS-GO key must beinthe vehicle. Occupant
safety Introduct
iontothe restr aintsystem
The restraint systemcanreduce therisk of
vehicle occupants comingintocontactwith
parts ofthe vehicle's interiorinthe event ofan
accident. Therestraint systemcanalso reduce
the forces towhich vehicle occupants aresub-
ject edduring anaccident.
The restraint systemincludes thefollowing
componen ts:
R seat beltsystem
R air bags
The componen tsof the restraint systemwork
in conj unction witheach other. Theycanonly
deploy theirprotect ivefunct ionif,at all times,
all vehicle occupants:
R have fastened theirseatbelts correct ly
(Y page 43)
R have theseat andhead restraint adjusted
properly (Ypage 97)
As the driver, youalso have tomake surethat
the steering wheelisadjusted correctly. Observe
theinformation relatingtothe correct
driver's seatposition (Ypage 97).
You also have tomake surethatanair bag can
inflate properly ifdeploye d(Y page 45).
An airbag supplements acorrect lyworn seat
belt. Asanadditional safetydevice, theairbag
increases thelevel ofprotect ionforvehicle
occupants inthe event ofan accident. For
example, if,inthe event ofan accident, the
protect ionoffered bythe seat beltissufficient,
the airbags arenot deploye d.When anacci-
dent occurs, onlytheairbags thatincrease
protect ioninthat particular accidentsituation
are deploye d.However, seatbelts andairbags
generally donot protect againstobjectspene-
tratin gthe vehicle fromtheoutside.
Inform ationonrestraint systemoperation can
be found under "Triggering ofthe Emergen cy
Tensioning Devicesandairbags"
(Y page 53).
See "Chil dren inthe vehicle" forinformation
on children traveling withyouinthe vehicle as
well ason child restraint systems
(Y page 57). Import
antsafety notes G
WARNING
Modifications tothe restraint systemmay
cause itto no longer workasinten ded.The
restraint systemmaythen notperform its
inten dedprotect ivefunct ionand may failin
an accident ortrigger unexpect edly,for
example. Thisposes anincreased riskof
injury oreven fatalinjury.
Never modify partsofthe restraint system.
Never tamper withthewiring, theelectron ic
componen tsor their software.
If it is necessary tomodify componen tsof the
restraint systemtoaccommodate aperson
with disabil ities,contactanauthorized
Mercedes-B enzCenter fordetails. USAonly:
for further information contactour Customer
Assistanc eCenter at1-80 0FOR-MERCED ES
(1‑800‑3 67‑6372).
Mercedes-B enzrecommen dsthat youonly use
driving aidswhich havebeen approved specifi-
cally foryour vehicle byMercedes-B enz. 40
Occ
upantsafetySafety

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 48)and on
"C hildre nin the vehicle" (Y page 57).
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 48). Be
su re to obs erve thenotes on"Se at
bel ts“ (Ypage 41)and "Airba gs"
(Y page 45). 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 - Oc
cupan tsafe ty
41Safety Z

pants
comingint ocon tact with parts ofthe
vehicle interior orbeing ejectedfrom thevehi-
cle. Furthermor e,the seat belthelps tokeep
the vehicle occupant inthe best position in
relation tothe airbag.
The seat beltsystem comprises:
R Seat belts
R Emer gencyTension ingDevic esand seat belt
forc elimiters
If the seat beltispulled quickly orsharply by
the seat beltguide, theinert iareel locks.The
belt strap cann otbe extract edany further.
The Emer gencyTension ingDevic etight ensthe
seat beltinan acciden t,pulling thebelt close
against thebody. However itdoes notpull the
vehicle occupant backinthe direct ionofthe
backr est.
The Emer gencyTension ingDevic edoes not
corr ectanincor rectseat position orthe rout-
ing ofan incor rectlyfasten edseat belt.
When triggered,aseat beltforcelimiter helps
to reduce theforc eexert edbythe seat belton
the vehicle occupant.
The seat beltforcelimiters aresynch ronized
with thefron tair bags which absorb partof
the decelerat ionforc e.This canreduce the
forc eexert edon the vehicle occupants during
an acciden t.
! If
the fron t-passenger seatisnot occupied,
do not engage theseat belttongue inthe
buckle onthe fron t-passenger seat.Other -
wise, inthe event ofan acciden tthe Emer -
genc yTension ingDevic eand theside
impact airbag, inaddition toother systems ,
may betrigge redand have tobe replaced.
Impor tantsafet ynotes The
useofseat belts andchild restraint sys-
tems isrequired bylaw in:
R all 50 stat es
R the U.S.terr itories
R the Dist rictofColumbia
R all Canadian provinces
Even where thisisnot required bylaw, allvehi-
cle occ upants shouldcorrectlyfasten their
seat belts before startingthe journ ey. G
WARN
ING
If the seat beltisnot worn correctly,itcan-
not perfor mits intended protective func tion. An
incor rectlyfasten edseat beltcanalso
cause injuries, forexample, inthe event of
an acciden tor when brakin gor chang ing
direct ionabruptly. Thisposes anincr eased
risk ofinjury oreven fatalinjury.
Always ensurethatallvehicle occupants
have theirseatbelts fasten edcorr ectlyand
are sitting properly.
The compon entsof the rest raint system work
in con junc tion with each other.They canonly
deploy theirprote ctive func tion if,at all times,
all vehicle occupants:
R have fasten edtheir seatbelts correctly
(Y page 43)
R have theseat andhead restraint adjusted
properly (Ypage 97) G
WARN
ING
The seat beltdoes notoffer theintended
level ofprote ction ifyou have notmoved the
backr esttoan almost vertical position .
When brakingor inthe event ofan acciden t,
you could slideundern eaththeseat beltand
sustain abdomen ornec kinj uries, forexam-
ple. This poses anincr eased riskofinjury or
even fatalinjury.
Adj ust the seat properly beforebeginning
your journ ey.Always ensurethattheback-
rest isin an almost vertical position andthat
the shoulder sectionofyour seatbeltis
routed across thecenterofyour shoulder. G
WARN
ING
Person sless than 5ft (1.5 0m) tall cann ot
wear theseat beltcorrectlywithout anaddi-
tion aland suitable restraint system. Ifthe
seat beltisnot worn correctly,itcann otper-
form itsintended protective func tion.An
incor rectlyfasten edseat beltcanalso cause
inj uries, forexample, inthe event ofan acci-
dent orwhen brakin gor chang ingdirect ion
abruptly. Thisposes anincr eased riskof
inj ury oreven fatalinjury.
For this reason, alwayssecurepersons
under 5ft (1.5 0m) tall insuitable additional
rest raint systems . 42
Occupant
safetySafet y

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 57)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 48) 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 42).
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
43Safety Z

section
forsecuring objects,luggageorloads
(Y page 249).
Fastening seatbelts Observe
thesafety notesonthe seat belt
(Y page 42)and thenotes oncorrect useof
seat belts (Ypage 43). Basic
illustration
X Adjust theseat (Ypage 97).
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 44).
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 57).
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 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 202).
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.
If the vehicle's speedexceeds 15mph
(25 km/h) onceandthedriver's andfront - 44
Occ
upant safetySafety

passenger
seatbelts arenot fasten ed,awarn-
ing tonesounds. Awarning tonealso sounds
with increasing intensit yfor 60secon dsor
until thedriver orfron tpassenger havefas-
ten edtheir seatbelts.
If the driver orfron tpassenger unfastentheir
seat belts during thejourn ey,the seat belt
warning isactiv ated again. Air
bags
Introd uction The
installation pointofan airbag canberec-
ogniz edbythe AIRB AGmarkin g.
An airbag complem entsthe corr ectlyfasten ed
seat belt. Itis no substit uteforthe seat belt.
When deployed, anairbag canincrease the
prote ction provided forthe respect ivevehicle
occ upant.
Not allairbags aredeployed inan acciden t.
The various airbags workindepen dentlyof
each other (Ypage 53).
However ,no system available todaycancom-
pletely eliminate injuries andfatalities .
It is also notpossible torule outarisk ofinjury
caused byan airbag duetothe high speed at
which theairbag mustbedeployed.
Impor tantsafet ynotes G
WARN
ING
If you donot sitinthe corr ectseat position ,
the airbag cann otprote ctas intended and
could evencause additional injury when
deployed. Thisposes anincr eased riskof
inj ury oreven fatalinjury.
To avoid hazardous situations,always make
sure thatallofthe vehicle's occupants:
R have fasten edtheir seatbelts correctly,
includin gpregnan twomen
R are sitting corr ectlyand maint ainthe
greatest possible distancetothe airbags
R follow thefollowing instruct ions
Always makesurethatthereare noobjec ts
between theairbag and thevehicle's occu-
pants . All
vehicle occupants mustobserve thefollow-
ing notestoavoid risksposed bythe airbag
when itdeploys.
R Adj ust the seats properly beforebeginning
your journ ey.Always makesurethatthe
seat isin an almost upright position .The
cen terofthe head restraint must support
the head atabout eyelevel.
R Move thedriver' sand front-passenger seats
as far back aspossible. Thedriver' sseat
position mustallow thevehicle tobe driven
safely.
R Only holdthesteer ingwheel onthe outside.
This allows theairbag tobe fully deployed.
R Always leanagainst thebackr estwhile driv-
ing. Donot lean forward orlean against the
door orside window. Youmay other wisebe
in the deployment areaofthe airbags.
R Always keepyourfeetinthe foot well in
fron tof the seat. Donot putyour feetonthe
dashboard, forexample. Yourfeetmay oth-
erwise beinthe deployment areaofthe air-
bag.
R For this reason, alwayssecurepersonsless
than 5ft (1.5 0m) tall insuitable restraint
systems .Up tothis height, theseat belt
cann otbe worn correctly.
If achild istraveling inyour vehicle, also
observe thefollowing notes:
R Always securechildren undertwelve years
of age and less than 5ft (1.5 0m) tall insuit-
able child restraint systems .
R Secur eachild tothe fron t-passenger seat
only when thefron t-passenger frontairbag
is deactiv ated,andthen onlyinarearward-
facin gchild restraint system. Thefront-
passenger frontairbag isdeactiv atedwhen
the PAS SENGER AIRBAGOFF indicat or
lamp islit con tinuously (Ypage 41).
R Always observe theinstruct ions andsafety
not eson the "Occupant Classification Sys-
tem (OCS)" (Ypage 48)and on"Children
in the vehicle" (Ypage 57)inaddition to
the child restraint system manufact urer's
inst allation andoperatin ginst ruct ions.
Objects inthe vehicle interior mayrestrict
the airba gfrom functioning correctly.To
avoid risksresultin gfrom thespeed ofthe air-
bag asitdeploys, vehicleoccupants must
ensure thefollowing points. Occupant
safety
45Safet y 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 there arenohar dobje cts,e.g. coathang ers,
hang ingonthe grabhand lesorcoa thoo ks
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 41).
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 48).
The PASSENGER AIRBAG OFFindicator
la mp isnot lit (Y page 48)
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. 46
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 53).
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
47Safety 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. Fully
retr act the seat cushion length.The entire
base ofthe child restraintsystem mustalway s
rest 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 215). When thefron t-
passenger seatisoccupied, alwayspay atten -
tion tothe PAS SENGER AIRBAG OFFindicat or
lamp. Beaware ofthe statusofthe fron t- 48
Occupant
safetySafet y