2020 MERCEDES-BENZ SL CLASS belt

section
forsecuring objects,luggageorloads
(Y page 252).
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
seat-belt adjustment isan integral partof
the PRE-SA FE®
conven iencefunction. This
function adjuststhedriver's andfront -
passenger seatbelttothe upper bodyofthe
vehicle occupants.
The belt strap istightened slightlywhen:
R the belt tongue isengaged inthe buckle and
R the ignition isswitched on
The seat-belt adjustment willapply acertain
retraction forceifany slack isdetected
between thevehicle occupant andtheseat
belt. Donot hold ontothe seat belttightly
while itis adjusting.
You canswitch theseat-belt adjustment on
and offinthe on-board computer
(Y page 204).
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 the fron tpassenger airbag hasbeen acti-
vated, achild onthe fron tpassenger seat
may behit bythe fron tpassenger airbag in
the event ofan acciden t.There isarisk of
inj ury orfatal injury.
NEV ERuse arearward-f acingchildrestraint
system onaseat prote cted byan ACTIVE
FRONT AIRBAG;DEATH orSERIOUS INJURY
to the CHILD canoccur.
When installing achild restraint system onthe
fron tpassenger seatobserve thevehicle- spe-
cific notes(Y page 59).Youmust observe
the noteson rearward andforward- facingchild
rest raint systems onthe fron t-passenger seat. G
WARN
ING
If you deviate fromthecorr ectseat position ,
the airbag cann otperfor mits intended pro- tec
tive func tion anddeployment mayeven
cause furtherinjuries. Thisposes an
incr eased riskofinjury oreven fatalinjury.
To avoid anyrisks ,each vehicle occupant
must always makesureofthe following:
R Faste nthe seat beltcorrectly.Inthe case
of pregnan twomen inpartic ular,make
sure thatthelapbelt isnever routed
across thestom achorabdomen.
R Adopt thecorr ectseat position andkeep
as far away aspossible fromtheairbags.
R Observe thefollowing notes.
Always makesurethatthereare noobjec ts
between theairbag and vehicle occupant.
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 frontair bag
is disabled, andthen onlyinarearward- Occupant
safety
45Safet y Z

Knee
bags Dr
ive r's kn ee bag 0043depl oysunderthest eer -
ing column andfron t-pass enger knee bag 0044
und ertheglov ebox .The driver 'sand fron t-
pass enger knee bags aretrigge redtoget her
wit hth efron tair bags .
The driver 'sand fron t-pass enger knee bags
off eraddit ionalthigh, knee and lower legpro-
te ction .
Sid eim pact air bag s G
WAR
NING
Un suit able seat cover scan obstruct orpre -
ven tdepl oyme ntoftheair bags integr ated
int oth eseat s.Con sequen tly, theair bags
can notpro tect veh icleoc cup antsas they
are designed todo. Inaddit ion,th eoper a-
ti on oftheoc cup ant clas sificat ion syst em
(OCS )co uld beadve rsely affected. This
pos esan increas edriskof injury oreve n
fat alinj ury.
You should onlyuse seat cover sth at hav e
been approvedfor theres pec tive seat by
Mer cedes -Ben z. Sid
eimp act airbags 0043depl oynext to the
out erbols terof theseat backrest .
Whe ndepl oyed, theside impact airbag offers
addit ionalthora xpro tection .Ho wev er,itdoes
no tpro tect the:
R head
R ne ck
R arm s
If th eres train tsyst emcontrol unitdet ects a
side impact,th eside impact airbag is
depl oyed ontheside onwhic hth eimp act
oc cur s.
The side impact airbag onthefron tpass enger
side deploysunderthefol lowin gco nd ition s:
R theOCS systemdetects that thefron t
pass enger seat isoc cup iedor
R theseat beltbuckle to ng ue isen gage din
th ebelt buckle of thefron tpass enger seat
If th ebelt tong ue isen gage din thebelt
buc kle, theside impact airbag onthefron t
pass enger side deploysifan appr opriateacc i-
den tsit uati onoccur s.In this cas e,depl oyme nt
is ind epen dentof whet herthefron tpass enger
seat isoc cup iedornot.
Hea dair bag s Hea
dbags 0043depl oyinthearea oftheside
win dows atthefron t.
Whe ndepl oyed, thehead bagenhan cesth e
lev elof pro tection forthehead .Ho wev er,it
does notpro tect the:
R ch est
R arm s
If th eres train tsyst emcontrol unitdet ects a
side impact,th ehead bagisdepl oyed onthe
side onwhic hth eimp act occur s.
If th esyst emdeterm inesth at they can offer
addit ionalpro tection tothat pro vided bythe Occup
antsafety
47Safet y Z

seat
belt, ahead bagmay bedeploy edinother
accident situations (Ypage 53).
The head bagonthe front -passenger side
deploy sunder thefollowi ngconditions:
R the OCS system detects thatthefront -
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 deploy sif an appropria teaccident situa-
tion occurs. Inthis case, deploy mentisinde-
pendent ofwhether thefront -passenger seatis
occupied ornot. Occupant
ClassificationSystem
(OCS)
Introduction The
Occupant Classification System(OCS)cat-
egorizes theperson inthe front -passenger
seat. Depending onthat result, thefront -
passenger frontairbag and front -passenger
knee bagareeither enabled ordeactivated.
The system doesnotdeactivate:
R the side impact airbag
R the headba g
R the Emergenc yTensioning Devices
Requirements To
be classified correctly,the front passenger
must sit:
R with theseat beltfastened correctly
R in an almost upright position withtheir back
agai nstthe seat backrest
R with their feetresting onthe floor, ifpossi-
ble
If the front passenger doesnotobserve these
conditions, OCSmayproduce afalse classifi-
cation, e.g.because thefront passenger:
R transfers theirweight bysupporting them-
selves onavehicle armrest
R sits insuch away that their weight israised
from theseat cushion
If you install achild restraint systemonthe
front -passenger seat,besure toobserve the
correct positioning ofthe child restraint sys-
tem. Never placeobjects underorbehind the child
restraint system,e.g.acushion. Fully
retract theseat cushion length.Theentire
base ofthe child restraint systemmustalways
rest onthe seat cushion ofthe front -
passenger seat.Thebackrest ofthe forward-
facing childrestraint systemmustlieasflat as
possible againstthe backrest ofthe front -
passenger seat.
The child restraint systemmustnottouch the
roof orbe subjected toaload bythe head
restraint. Adjusttheangle ofthe seat backrest
and thehead restraint positionaccordingly.
Only thencanOCS beguara nteed tofunction
correct ly.Always observe thechild restraint
system manufacturer's installationandoperat-
ing instruct ions.
Occupant ClassificationSystem opera-
tion (OCS) 0043
PASSE NGERAIRBAG ONindicator lamp
0044 PASSE NGERAIRBAG OFFindicator lamp
The indicator lampsinform youwhether the
front -passenger frontairbag isdeactivated or
enabled.
X Press theStart/ Stopbutton onceortwice,
or turn theSmartKey toposition 0047or0048 in
the ignition lock.
The system carriesout<00560048004F004900100047004C0044004A0051005200560057004C00460056
0011[
The PASSE NGERAIRBAG OFFand
PASSE NGERAIRBAG ONindicator lampsmust
light upsimultaneousl yfor approximately six
seconds.
Then theindicator lampsdisplaythe status of
the front -passenger frontairbag:
R PASSE NGERAIRBAG ONlights upfor
60 seconds, subsequentlybothindicator
lamps areoff(PASSE NGERAIRBAG ONand 48
Occ
upant safetySafety

OFF):
thefront -passenger frontairbag is
able todeploy inthe event ofan accident.
R PASSE NGERAIRBAG OFFlights up:the
front passenger frontairbag isdeactivated.
It will then notbedeploy edinthe event of
an accident.
If the PASSE NGERAIRBAG ONindicator lamp
is off, only thePASSE NGERAIRBAG OFFindi-
cator lampshows thestatus ofthe front -
passenger frontairbag. ThePASSE NGERAIR
BAG OFFindicator lampmaybelitcont inu-
ously orbe off.
If the status ofthe front -passenger frontair
bag changes whilethevehicle isin motion, an
air bag displa ymessage appearsinthe instru-
ment cluster (Ypage 218). When thefront -
passenger seatisoccupied, alwayspay atten-
tion tothe PASSE NGERAIRBAG OFFindicator
lamp. Beawa reofthe status ofthe front -
passenger frontairbag both before andduring
the journey. G
WARNING
If the PASSE NGERAIRBAG OFFindicator
lamp islit, the front -passenger frontairbag
is disabl ed.Itwill notbedeploy edinthe
event ofan accident andcannot perform its
intended protective function.Aperson inthe
front -passenger seatcould then,forexam-
ple, come intocontactwith thevehicle's
interior, especiallyifthe person issitting too
close tothe dashboa rd.This poses an
increased riskofinjury oreven fatalinjury.
When thefront -passenger seatisoccupied,
alwa ysensure that:
R the classification ofthe person inthe
front -passenger seatiscorrect andthe
front -passenger frontairbag isenabled or
disabl edinaccordance withtheperson in
the front -passenger seat
R the front -passenger seathasbeen moved
back asfar back aspossible .
R the person isseated correctly.
Make sure,bothbefore andduring thejour-
ney, thatthestatus ofthe front -passenger
front airbag iscorrect . G
WARNING
If you secure achild inarearward-facing
child restraint systemonthe front -
passenger seatandthePASSE NGERAIR
BAG OFFindicator lampisoff, thefront -
passenger frontairbag candeploy inthe
event ofan accident. Thechild could be
struck bythe airbag. Thisposes an
increased riskofinjury oreven fatalinjury.
Make surethatthefront -passenger frontair
bag hasbeen deactivated. ThePASSE NGER
AIR BAG OFFindicator lampmust belit.
NEVER usearearward-facing childrestraint
on aseat protected byan ACTIVE FRONT
AIRBAG infront ofit;DEA THorSERIOUS
INJURY tothe child canoccur.
If the PASSE NGERAIRBAG OFFindicator lamp
stays off,donot install arearward-facing child
restraint systemonthe front -passenger seat.
You canfind more information onOCS under
"Proble mswith theOccupant Classification
System" (Ypage 51). G
WARNING
If you secure achild inaforward-facing child
restraint systemonthe front -passenger seat
and youposition thefront -passenger seat
too close tothe dashboa rd,inthe event of
an accident, thechild could:
R come intocontactwith thevehicle's inte-
rior ifthe PASSE NGERAIRBAG OFFindi-
cator lampislit, for example
R be struck bythe airbag ifthe
PASSE NGERAIRBAG OFFindicator lamp
is off
This poses anincreased riskofinjury or
even fatalinjury.
Alway smove thefront -passenger seatasfar
back aspossible andfully retract theseat
cushion length.Alwaysmake surethatthe
shoulde rbelt strap iscorrect lyrouted from
the vehicle seatbeltguide tothe shoulde r
belt guide onthe child restraint system.The
shoulde rbelt strap mustberouted forwards
and downwards fromtheseat beltguide . Occ
upant safety
49Safety
Z

passenger
frontair bag isdeactiv ated.Itwill
not bedeployed inthe event ofan acciden t.
In this case, thefron t-passenger frontair
bag cann otperfor mits intended protective
func tion,e.g. when aperson isseated inthe
fron t-passenger seat.
That person could,forexample, comeinto
con tact with thevehicle's interior, especially
if the person issitt ing too close tothe dash-
board. Thisposes anincr eased riskofinjury
or even 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
deactiv atedinaccor dance withtheper-
son inthe fron t-passenger seat
R the person isseated properly withacor-
rect lyfasten edseatbelt
R the fron t-passenger seathasbeen moved
as far back aspossible
If the PAS SENGER AIRBAGOFF indicat or
lamp remains litwhen itshould not,the
fron t-passenger seatmust notbeused. Do
not installachild restraint system onthe
fron t-passenger seat.Have theOcc upant
Classification System(OCS)checkedand
repaired immediately ataqualified specialist
worksh op. G
WARN
ING
Objec tsbetween theseat surface andthe
child restraint system couldaffect OCS operation
.This could result inthe fron t-
passenger airbag notfunc tioningasinten-
ded during anacciden t.This poses an
incr eased riskofinjury oreven fatalinjury.
Do not place anyobjec tsbetween theseat
surface andthechild restraint system. The
ent irebase ofthe child restraint system
must always restonthe seat cushion ofthe
fron t-passenger seat.Thebackr estofthe
forward- facingchild restraint system must,
as far aspossible, berest ingonthe back-
rest ofthe fron t-passenger seat.Always
comply withthechild restraint system man-
ufactur er'sinstallation instruct ions.
Aft erthe self-t est,thePAS SENGER AIRBAG
OFF orthe PAS SENGER AIRBAGON indicat or
lamp displays thestatusofthe fron t-
passenger frontairbag (Ypage 48).Ifthe
fron t-passenger frontairbag isenabled, the
PAS SENGER AIRBAGON indicat orlamp lights
up for 60secon dsand then goes out.
If the PAS SENGER AIRBAGON indicat orlamp
is off, only thePAS SENGER AIRBAGOFF indi-
cator lampshows thestatusofthe fron t-
passenger frontairbag. ThePASSENGER AIR
BA GOFF indicat orlamp maybelitcon tinu-
ously orbe off.
For more information abouttheOCS, see
"Problems withtheOcc upant Classification
System "(Y page 51).
Problems withtheOccupant Classification System(OCS) Be
sure toobserve thenoteson "System self-test"(Ypage 50). Occupant
safety
51Safet y Z

Problem
Possible
causes/co nsequences and0050 0050
Solutions The
PASS ENGER AIR
BAG OFFindicator lamp
lights upand remains
lit, even though the
front -passenger seatis
occupied byan adult or
a person ofastature
correspondin gto that of
an adult. The
classification ofthe person onthe front -passenger seatisincor-
rect.
X Make surethecondition sfor acorrect classification ofthe per-
son onthe front -passenger seataremet (Ypage 48).
X Ifthe PASS ENGER AIRBAG OFFindicator lampremains lit,the
front -passenger seatmaynotbeused.
X Have OCScheck edassoon aspossible atan authorized
Mercedes-Ben zCenter. The
PASS ENGER AIR
BAG OFFindicator lamp
does notlight up
and/or doesnotstay
on.
The front -passenger
seat is:
R unoccupied
R occupied bythe
weight ofachild up
to twelve monthsold
in achild restraint
system OCS
ismalfunctionin g.
X Make surethere isnothin gbetween theseat cushion andthe
child seat.
X Make surethattheentire baseofthe child restraint systemrests
on the seat cushion ofthe front -passenger seat.Thebackrest of
the forward-facing childrestraint systemmustlieasflat aspossi-
ble against thebackrest ofthe front passenger seat.Ifnecessary,
adjust theposition ofthe front -passenger seat.
X Make surethattheseat cushion lengthisfully retract ed.
X When installing thechild restraint system,makesurethatthe
seat beltistight. Donot pull theseat belttight using thefront -
passenger seatadjustment .This could result inthe seat beltand
the child restraint systembeingpulled tootightly.
X Check forcorrect installation ofthe child restraint system.
Make surethatthehead restraint doesnotapply aload tothe
child restraint system.Ifnecessary, adjustthehead restraint
accordingly.
X Make surethatnoobject sare apply ingadditional weightontothe
seat.
X Ifthe PASS ENGER AIRBAG OFFindicator lampremains off
and/or thePASS ENGER AIRBAG ONindicator lamplights up,do
not install achild restraint systemonthe front -passenger seat.
X Have OCScheck edassoon aspossible atan authorized
Mercedes-Ben zCenter. Roll
bar G
DANGER
If the rollbar has developed amalfunction, it
may notfunct ion,e.g. inthe event ofan
accident. Therollbars maythen notprotect
the vehicle occupants asinten ded.This
poses anincreased riskofinjury oreven
fatal injury.
Have rollbars check edimmediately ata
quali fiedspecialist workshop. G
WARNING
If you place object sor clothing onthe roll
bar covers, thesecouldimpair rollbar exten -
sion. Therollbars maythen notprotect the
vehicle occupants asinten ded.Inaddition,
object scould endanger thevehicle occu-
pants whentherollbar isexten ding.This
poses anincreased riskofinjury oreven
fatal injury.
Ensure thatthemovement areaofthe roll
bar covers iskept clear. Always stowall
object sin the vehicle correctly. 52
Occ
upantsafetySafety

The
rollbars arelocated inthe rear area ofthe
vehicle underthetwo outer rearcompart ment
trim covers.
They exten difsystems detectthatthevehicle
is in danger ofrollover. Thetwo outer rear
compart menttrimcovers areopened andthe
roll bars areexten dedwithin fractions ofa
second.
Once therollbars areexten ded,youcan no
longer lowerthem. Anopen roofcannolonger
be closed. Inthis case, visitthenearest quali-
fied specialist workshop. Deployment
ofEmergency Tension-
ing Devic esand airbags
Import antsafety notes G
WARNIN
G
The airbag parts arehot after anair bag has
been deployed. Thereisarisk ofinjury.
Do not touch theairbag parts. Havea
deployed airbag replaced ataqualified spe-
cialist workshop assoon aspossible. G
WARNIN
G
A deployed airbag nolonger offersanypro-
tect ionand cann otprovide theinten dedpro-
tect ioninan accident .There isan increased
risk ofinjury.
Have thevehicle towedtoaqualified spe-
cialist workshop inorder tohave adeployed
air bag replaced.
For your ownsafety andthat ofyour front
passenger, itis important thatyouhave
deployed airbags replaced anddefect iveair
bags repaired. Thiswillhelp tomake surethe air
bags continue toperform theirprotec tive
funct ionforthe vehicle occupant sin the event
of acrash. G
WARNIN
G
Emergen cyTensionin gDevices thathave
deployed pyrotechn icallyarenolonger
operational andareunable toperform their
inten dedprotec tivefunct ion.This poses an
increased riskofinjury oreven fatalinjury.
Have pyrotechn icallytriggered Emergency
Tensionin gDevices replaced immediately at
a qualified specialist workshop.
An electric motorisused byPRE-S AFE®
to
trigger thetighten ingofthe seat beltinhaz-
ardous situations. Thisprocedure isreversible.
If Emergen cyTensionin gDevices aretriggered
or air bags aredeployed, youwillhear abang,
and some powder mayalsobereleased. The
0075 restraintsystem warning lamplights up.
Only inrare cases willthebang affect your
hearing. Thepowder thatisreleased generally
does notconst ituteahealth hazard, butitmay
cause short-termbreathing difficulties inpeo-
ple with asthma orother respiratory problems.
Provided itis safe todo so, you should leave
the vehicle immediately oropen thewindow in
order toprevent breathing difficulties.
Air bags andpyrotechn icEmergen cyTension-
ing Devices (ETDs)cont ainperchlorate mate-
rial, which mayrequire specialhandling and
regard forthe environ ment.National guide-
lines must beobserved duringdisposal. InCal-
ifornia, seewww .dtsc.ca.gov/
Haza rdousW aste/Perchlora te/index.cfm.
Method ofoperat ion During
thefirst stage ofacollision, the
restr aintsystem controlunit evaluates impor-
tant physical datarelating tovehicle decelera-
tion oracceleration ,such as:
R duration
R direction
R inten sity
Based onthe evaluation ofthis data, the
restr aintsystem controlunit triggers theEmer-
gency Tensionin gDevices duringahead-on or
rear-en dcollision. Occupant
safety
53Safety Z