MERCEDES-BENZ A-CLASS SEDAN 2021 Owner's Guide

Benz
AGrecomme ndsusing only few elec trical
ve hicle systems and/or maintaining adis tance
fr om thecom ponen ts.
Onl yha ve repair sand maint enanc ewo rkinthe
ar ea ofthefo llo wing compone ntscar ried out by
a qu alif ied spec ialistwo rkshop:
R Vehicle component scar rying livevo ltag e
R Trans miss ionantenn a
R Mult imed iasystem and sound system
If yo uha ve anyqu eries orsugg estion s,con sult a
qu alif ied spec ialistwo rkshop. Pr
oblems withyour vehicl e
If yo usho uld exper ience apr oblem withyo ur
ve hicle, particular lyone that youbelie vema y
af fect its safeope ratio n,we urge youto cont act
an author ized Mercedes-B enzCent erimmedi‐
at ely tohave thepr oblem diagnosed andrecti‐
fi ed. Ifth epr oblem isno tre sol vedto your sat is‐
fa ction, plea se discu ssthepr oblem again with
an aut hor ized Mercedes- BenzCenteror,if nec‐
essar y,cont actusatone ofthefo llo wing
addr esses : In
theUS A:
Mer cede s-Benz USA,LLC
Cus tomer Assis tance Center
One Mercedes-Be nzDrive
Sand ySpr ings,GA 30328
In Can ada:
Mer cedes-Be nzCanad a,Inc.
Cu stomer Relation sDepar tment
98 Vande rhoof Avenue
To ronto, Ont ario M4G 4C9 Re
por ting safetydef ects
US Aonl y:
The follo wing text ispu blished asrequ ired of
manuf acturersunder Title 49, Code ofU.S. Fed‐
er al Re gulations, Part57 5pur sua nttothe
"N atio nalTraf fic and MotorVe hicle SafetyAc tof
19 66".
If yo ubelie vethat your vehicle hasadef ect
whic hcould cause acr ash orcould cause injury
or deat h,yousho uld imm ediat elyinf orm the Na
tional HighwayTraf fic Saf etyAd minis tration
(NHT SA)in addition tonotify ing Mercede s-Benz
US A,LLC.
If NHT SArecei vessimilar complaints, itma y
open aninve stigation ,and ifit finds that asaf ety
def ect exists inagr oup ofvehicles, itma yor der
a re cal land remedy campaign. However,NHT SA
canno tbeco meinvo lved inindiv idual problems
be tween you, your dealer ,or Mer cedes-Ben z
US A,LLC.
To cont actNHT SA,yo uma ycall theVe hicle
Saf etyHo tlin e to ll-f reeat 1-8 88-327-4 236
(TT Y:1-800-42 4-9153);go tothehtt ps:/ /
www .safercar .go v/;or write to :Ad minis trat or ,
NHT SA,400 SeventhSt reet,SW .,Wa shingt on,
DC 20590,: USA.
Yo ucan also obtain other information about
mo torve hicle safetyfrom: http s://
www .saf er car .gov
Cana daonl y:
The follo wing text ispu blished asrequ ired of
manuf acturersunder subsec tion18.4 (4) ofthe
Mo torVe hicle SafetyRe gulations. Gener
alno tes 29

If
yo ubelie vethat your vehicle hasadef ect
whic hcould cause acr ash orcould cause injury
or deat h,yousho uld imm ediat elyinf orm Trans ‐
por tCanada inaddit iontonotify ing Mercede s-
Benz Canad aInc.
If Trans portCanada recei vedsimilar complaints,
it ma yopen aninve stigation ,and ifit finds that a
saf etydef ectex ists inagr oup ofvehicles, itma y
or der are cal land remedy campaign. Howe ver,
Tr ans portCanada cannotbec ome invo lved in
individual problems between you, your dealer or
Mer cedes-Ben zCanad aIn c.
To cont actTrans portCanada, youma ycall the
Def ect Inve stigation sand Recal lsDivi sionto ll-
fr ee inCanada at1-800 -333- 0510 or
81 9-99 4-3328 intheGatineau-Ot tawa area or
int ernat ionally; youma yalso gotothefo llo wing
we bsit esformor einf ormation:
R Eng lish:https://www .tc.gc.ca/recalls
R Frenc h:htt ps:/ /www .tc.gc .ca/ rappels Limit
edWa rranty
* NO
TEDama getotheve hicle arising
fr om violation ofthese oper ating instruc‐
tion s. Damag
eto theve hicle canarise from viola‐
tion ofthese oper ating instruction s.
This damag eis no tco veredeit her bythe
Mer cedes-Ben zim plied warrant yor by the
Ne w‑ orUsed- Vehicle Warrant y. #
Followtheins truction sin these oper at‐
ing instruction son proper operation of
yo ur vehicle aswellas on possible vehi‐
cle damag e. QR
code forre scue card
QR codes areatt ached inthefuel filler flap and
on theopposit eside ontheB-pillar .In theeve nt
of an acci dent, rescue services canusetheQR
code toquickl yfind theappr opriatere scue card
fo ryo ur vehicle. Thecurrent rescue cardcon‐
ta ins themos tim por tant informa tionab ou tyo ur ve
hicle inacom pact form ,e.g. thero utin gof the
electr iclines.
Fu rther information canbeobt ained athttps: //
www .mercedes-benz .de/qr-code. Data
storage Data
processi ngintheve hicl e Ele
ctroni cco ntr olunits
Electr oniccontr olunits areins talled inyour vehi‐
cle. Contr olunits process datawhic h,forex am‐
ple, they recei vefrom vehicle sensor s,ge ner ate
th emselv esorexch ang ebe tween themselv es.
Some control units arere qu ired forth esaf e
oper ation ofyour vehicle, some assistyo uwhen
dr ivin g,suc has driver assis tance systems, while
ot her senable comfortor infotainm entfunction s.
The follo wing prov ides youwit hge ner alinf orma ‐
tio nre ga rding datapr oces sing intheve hicle.
Ad dition alinf ormation rega rding exact lywh ich
da ta inyour vehicle arecollect ed,save dand
tra nsm itted tothird par ties and forwha tpur‐
pose, canbefound intheinf ormation direct ly
re lat ed tothefunc tionalch aract eristic sin qu es‐ 30
Gener alno tes

tio
nin their respectiv eoper ating instructions.
This information isalso available online and,
depen dingon theve hicle equipment, digitally.
Pe rsonal data
Ev eryve hicle isidentif iedbyauniq uevehicle
identif ication number .Depending onthecoun‐
tr y, this vehicle identif ication number canbe
used by,fo rex am ple, government alau thor ities
to determ ine theidentit yof theow ner .The reare
ot her possibili tiestouse dataco llec tedfrom the
ve hicle toident ifytheow ner ordriver ,su ch as
th elicense platenumber .
Ther efor e, dat age ner ated orproce ssedby con‐
tr ol uni tsma ybe attr ibut ab leto aper son or,
unde rcer tain con dition s,becom eatt ribut able to
a per son .De pen dingon whic hve hicle dataar e
av ailable, itma ybe poss ibletomak einf erences
abou t,forex am ple, your drivin gbeha vior,yo ur
loc atio n,your routeor your use pattern s.
Leg alrequ irement sre ga rding thedisclos ure
of data
If leg allyre qu ired todo so, manuf acturersar e, in
individual cases,legallyoblig edtoprov ide gov‐
er nm ent alent ities ,upon requ estand tothe ex
tent requ ired, datast or ed bythemanuf ac‐
tur er.Fo rex am ple, this ma ybe thecase during
th einve stigation ofacr imin aloffense.
Go vernment alentities areth emselv es,inindivid‐
ual cases andwithin theapplicable legalframe‐
wo rk,aut hor ized toread out datafrom theve hi‐
cle. Inthecase ofan acciden t,inf ormation that
can help withan inve stigation can,th er efor e, be
ta ke nfrom theairbag control unit, forex am ple.
Oper ational data intheve hicl e
This isdat are ga rding theoper ation oftheve hi‐
cle, whic hha ve been processed bycontr oluni ts.
Thi sincl udes thefo llo wing data,forex am ple:
R Vehicle status informat ionsuchas thespeed,
longitudin alacceler ation,lateral accelera ‐
tion ,number ofwheel revo lution sor thefa s‐
te ned seatbe lts displ ay
R Ambi entcond itions, such astemp eratur e,
ra in sen sor ordis tance sens or
Ge ner ally,th euse ofthese datais temp orar y;
th ey will notbe stor ed beyond theper iod of
oper ation andwillonlybe processed within the
ve hicle itself. Controlunits oftencont ain da ta memor
iesforve hicle keys,fo rex am ple. Their
use permitsth ete mp orar yor per manent docu‐
ment ation oftech nica linf orma tionab ou tth e
ve hicle's operating stat e, com ponent loads,
main tenance requ iremen tsand tech nica leve nts
or ma lfunctio ns.
Dep endingontheve hicle equipment, thefo llo w‐
ing dataar estor ed:
R Oper ating status ofsystem com ponen ts,
suc has fill le ve ls, tirepr essur eor batt ery
st atus
R Malfun ction sor faults inim por tant system
com ponen ts,suc has lights orbrak es
R System react ionsin spec ialdrivin gsit ua‐
tio ns,suc has airbag deploymentor theint er‐
ve ntio nof stabilit ycon trol systems
R Information oneve nts lead ing tovehicle
damag e
In cer taincas es, itma ybe requ ired tostor edat a
th at wo uld have other wise been usedonlyte m‐
por arily. This maybe thecase ifth eve hicle has
de tected amal functi on,forex am ple. Gene
ralno tes 31

If
yo uuse services, suchas repair services and
maint enanc ewo rk,st or ed oper ational dataas
we llas theve hicle identif ication number canbe
re ad out and used. Theycan beread out by
ser vice networkem ployees, suchas workshops
and manuf acturersor third par ties ,suc has
br eakdo wnservice s.The same istrue inthe
case ofwa rrant yclaim sand qualit yassur ance
meas ures.
In gener al,th ere ad out isper form ed via the
leg allypr escr ibed portfo rth ediagnos ticscon‐
nect ionintheve hicle. Theoper ational datath at
ar ere ad out documen tte ch nica lst at es ofthe
ve hicle orofindividua lcom ponent sand assis tin
th ediagnosis ofmalfunct ions,compliance with
wa rrant yoblig ationsand qualit yim prove ment.
To that end ,th ese data,in par ticular information
about componen tloads, tech nica leve nts, mal‐
func tions and other faults maybe trans mitted
alon gwit hth eve hicle identif ication number to
th emanuf acturer.Fu rther mor e,themanuf ac‐
tur erissubject toproduct liability .Fo rth is rea‐
son themanuf actureralso uses operational data
fr om theve hicle, forex am ple, forre cal ls. The se da
ta can also be used toexamin eth ecus tom‐
er's warrant yand guar anteeclaim s.
Fa ult mem ories intheve hicle canberese tby a
ser vice outle tor atyour requ estas par tof repair
or maint enanc ewo rk.
Con venience andinfotainme ntfuncti ons
Yo ucan stor econ venie nce settings andindivid‐
ua lse ttings intheve hicle andchang eor rese t
th em atanytime.
Depen dingontheve hicle equipment, this
inc ludes thefo llo wing settings ,fo rex am ple:
R Seat andsteer ing wheel position s
R Suspension andclimat econ trol settings
R Individual settings, suchas interior lighting
Depen dingontheselect edequipment, youcan
im por tdata intove hicle infotainm entfunction s
yo urself .
De pen dingon theve hicle equipment, this
inc ludes thefo llo wing data,forex am ple:
R Mult imed iadat a,suc has music ,fi lms orpho‐
to sfo rpla yba ckinan integr ated multim edia
sy stem R
Address book datafo ruse inconnection with
an integr ated hands-fr eesystem oran inte‐
gr ated navig ation system
R Entere dna vig ation destinations
R Dat aabout theuse ofInt erne tser vices
These datafo rcon venie nce and infotainm ent
fun ction sma ybe save dlocally intheve hicle or
th ey ma ybe locat edon ade vice whichyo uha ve
connect edtotheve hicle, suchas asmar tphone,
USB flash drive or MP3 player.If yo uha ve
ent ered these datayo urself ,yo ucan deletethem
at anytime.
This datais tra nsmit tedfrom theve hicle tothird
par ties onlyat your requ est.This applies, inpar‐
ticular ,when youuse onlineser vices inacc ord‐
anc ewit hth ese ttings that youha ve select ed.
Smar tphone integratio n(e .g. Android Au toor
App leCar Play)
If yo ur vehicle isaccor dinglyeq uipped, youcan
co nn ect your smar tphon eor ano ther mobile end
de vice totheve hicle. Youcan then con trol them
by means ofthecon trol element sint egr ated in
th eve hicle. Imagesand audiofrom thesmar t‐
phone canbeoutput viathemultimedia system. 32
Gener alno tes

Cer
tain inf ormatio nis simult aneousl ytransf er‐
re dto your smar tphon e.De pen dingon thetype
and integr ation, this inc ludes positiondata,the
da y/night modeandother gener alvehicle sta‐
tus es. Formor einf ormation pleaseconsult the
Oper ator's Manual oftheve hicle/inf otainm ent
sy stem.
This integr ation allowstheuse ofselect ed
smar tphon eapps, suchas navig ation ormusic
pla yerapp s.Ther eis no further interaction
be tween thesmar tphon eand theve hicle; inpar‐
ticular ,ve hicle datais no tdir ectl yaccessible.
The type ofadditional datapr ocessing isde ter‐
mined bythepr ov ider oftheapp being used.
Whic hse ttings youcan make,ifan y,depends on
th especif icapp andtheoper ating system of
yo ur smar tphon e. Onlin
eser vices Wi
reless netw orkconnection
If yo ur vehicle hasawir eless networkconn ec‐
tion, itenables datato be exc hang edbetween
yo ur vehicle andadditional systems. Thewire‐
less networkcon nect ionismade possible bythe ve
hicle's owntrans mitt erand recei veror by a
mobil eend device that youha ve brought intoth e
ve hicle, forex am ple, asmar tphon e.On line func‐
tio ns can beused viathewir eless networkcon ‐
nect ion.This includes onlineservices andappli‐
cation s/apps prov ided toyouby themanuf ac‐
tur eror by other prov ider s.
Manu factu rer's services
Re garding themanuf acturer'sonline services,
th eindividual functionsar edescr ibedbythe
manuf acturerinasui table place, forex am ple, in
th eOper ator's Manual oron themanuf acturer's
we bsit e,wher eth ere leva nt data protect ion
inf ormation isalso given. Personal datama ybe
used forth epr ov ision ofonlin eser vice s.Dat a
ar eexc hang edvia asecur econn ection, suchas
th emanuf acturer'sdesignat edITsystems. Any
per sonal datawhic har ecollect ed,processed
and used, other than forth epr ov ision ofser v‐
ices, isdone soexc lusiv elyon thebasis ofleg al
per mission. Thisisthecase, forex am ple, fora
leg ally prescr ibed emerg encycallsystem, acon ‐
tra ctual agreement orwhen consent hasbeen
giv en. Yo
ucan have ser vices andfunctions, someof
whic har esubject toafe e, activ ated ordeactiv a‐
te d. This excludes legallypr escr ibed functions
and service s,suc has an emer gency callsy stem.
Thir dpar tyser vices
If yo uuse onlineser vices from other prov ider s
(t hir dpar ties ),th ese services areth ere sponsi‐
bility ofthepr ov ider inqu estion andsubject to
th at prov ider's datapr otect ion conditions and
te rm sof use. Asage ner alrule, themanuf ac‐
tur erhas noinfluence onthecon tent
exc hang ed.
Fo rth is reason ,when services arepr ov ided by
th ird par ties ,please asktheser vice prov ider in
qu estion forinf ormation aboutthetype, extent
and purpose ofthecollect ionand useofper‐
sonal data. Data
protection rights Depen
dingonyour count ryor theeq uipment
and rang eof func tions ofyour vehicle aswellas
th eser vices youuse and theser vices onoffer,
yo uar een titled todiffere nt data protect ion
ri ghts. Further information ondat apr otect ion Gener
alno tes 33

and
your dat apr otect ion rights caneither be
fo und onthemanuf acturer'swebsit eor youwill
re cei vethis inf ormatio nas par tof theva rious
ser vices andservice offers .The reyouwill also
fi nd thecon tact informati onforth emanuf ac‐
tur erand itsdat apr otect ion officer s.
At awo rkshop, forex am ple, withth esuppor tof
a specialis tand possibly fora fe e, youcan have
dat are ad out whic his stor ed onlylocally inthe
ve hicle. MBUX
multim ediasystem/M ercedes me
connect If
th eve hicle iseq uipped withth eMBUX multi‐
media system orMer cedes meconnect ,addi‐
tion aldat aabout theve hicle's operation, theuse
of theve hicle incer tain situat ions,and theloca‐
tion oftheve hicle maybe com piled bythe
MBUX multimedia system orMer cedes mecon‐
nect .
Fo radd itional information, pleasereferto the
"MB UXmult imed iasystem" sectionand/or the
Mer cedes meconn ectTerm sand Conditions. Ev
ent data recor der s US
Aonl y:
This vehicle iseq uipped withan event data
re cor der (EDR ).The mainpu rpose ofan EDRis
to recor d,incer tain crash ornear crash-lik esit‐
uation s,suc has an airbag deployment orhitt ing
a ro ad obs tacle ,da ta that will assis tin unde r‐
st andi nghowave hicle's systems perform ed.
The EDRis designed torecor dda ta relat ed to
ve hicle dynamics andsafetysy stems fora shor t
per iod oftime, typica lly30 seconds orless.
The EDR inthis vehicle isdesigned torecor d
su ch dat aas:
R Howvarious systems inyour vehicle were
oper ating
R Whe ther or notth edr iver and front
passeng erseat belts werebuc kled/f astened
R Howfar(if at all)th edr iver wa sdepr essing
th eaccelera torand/or brak epeda land
R Howfast theve hicle wastrave ling
This datacan help prov ide abe tter under stand‐
ing ofthecir cums tances inwh ich acci dents and
inju ries occur .NO TE: EDRdat ais recor ded by yo
ur vehicle onlyif anon- trivial crash situation
occur s;no dat ais recor ded bytheED Runder
nor mal driving conditions andnoper sonal data
(e.g. name, gende r,ag eand acciden tloc atio n)is
re cor ded .Ho wever,ot her parties, suchas law
enf orcement ,could combine EDRdatawit hth e
typ eof personally identifying dataro utin ely
acq uired dur ing acr ash inve stigation .
To read dat are cor ded byan EDR,spec ialequip‐
men tis requ ired, and access totheve hicle or
th eED Ris needed. Inaddition totheve hicle
manuf acturer,ot her parties that have thespecial
eq uipment, suchas law enf orcemen t,can read
th einf ormation byacc essi ngtheve hicle orthe
EDR.
EDR data ma ybe used incivil andcrimina lmat‐
te rs as ato ol inaccident recons tructi on,acci ‐
dent claims and vehicle safety. Since theCr ash
Dat aRe trie va l(CDR) tool that isused toextract
da ta from theED Ris comm erciall yav ailable,
Mer cedes-Ben zUS A,LLC("MBUS A")expressl y
disclaims anyand allliability arising from the
ex tracti onofthis inf ormatio nby unaut horized
Mer cedes-Ben zper son nel. 34
Generalno tes

MBUS
Awill notshar eEDR datawit hot her swit h‐
out thecon sent oftheve hicle owner or,if th e
ve hicle isleased, without thecon sent oftheles‐
see. Excep tion sto this repr esent ation include
re sponses tosubpoenas bylaw enf orcem ent;by
fe der al,stat eor loc algo vernment ;in connection
wit hor arising outoflitig ation invo lvin g MBUS A
or its subsidia ries and affiliat es; or,as requ ired
by law.
Wa rning: TheEDRis acom pone ntofthe
Re stra int System Module. Tamp ering with,alt er‐
ing, modifying orremo ving theED Rcom ponen t
ma yre sult inamalfunction oftheRe stra int Sys‐
te m Modu leand other systems.
St atelaws orregulations rega rding EDRs that
con flict withfe der alregulation arepr e-em pted.
This means that intheev ent ofsuc hcon flict ,th e
fe der alregulation governs. As ofDecember
20 16 ,17 stat es have enact edlaws relatin gto
EDRs . Co
pyright Fr
ee and open sourcesof tware In
fo rm atio non lice nsefo rfr ee and open-sou rce
sof twareused inyour vehicle canbefound on
th edat acar rier inyour vehicle document wallet
and withupdat eson thefo llo wing websit e:
htt ps:/ /www .mercedes- benz.com/open source Re
gis tere dtrademar ks R
Bluetoo th®
is are gis tere dtra demar kof Blue‐
to othSIG, Inc.
R DTS™ isare gis tere dtra demar kof DT S,Inc.
R Dolb y®
and MLP ™arere gis tere dtrademar ks
of DOLB YLabor ator ies.
R ESP ®
and PRE-S AFE®
arere gis tere dtra de‐
mar ksofDaimler AG.
R HomeL ink®
is are gis tere dtra demar kof Gen‐
te xCo rporation.
R iPod ®
and iTune s®
arere gis tere dtrademar ks
of Apple Inc. R
Burmes ter®
is are gis tere dtra demar kof
Bur mes terAu diosy steme GmbH.
R Micr osoft®
and Windo wsMedia ®
arere gis‐
te re dtrademar ksofMicr osoftCor poration.
R SIRIUS ®
is are gis tere dtra demar kof Sir ius
XM Radio Inc.
R HD Radio™ isare gis tere dtrademar kof iBiq‐
uity Digit alCor poration.
R Graceno te®
is are gis tere dtra demar kof
Gr aceno te,Inc .
R ZAGA TSur vey®
and relat ed brands arere gis‐
te re dtrademar ksofZag atSur vey, LL C. Gener
alno tes 35

Re
stra int system Pr
otection prov ided bythere stra int system The
restra int system includes thefo llo wing com‐
pone nts:
R Seat beltsystem
R Airbags
R Child restra int system
R Child seatsecur ingsystems
The restra int system can help preve nttheve hi‐
cle occupants from coming intocont actwith
par tsof theve hicle interior intheev ent ofan
acciden t.In theev ent ofan acciden t,th e
re stra int system can also reduce thefo rc es to
whic hth eve hicle occupants aresubject ed.
A seat beltcanonlypr ov ide thebes tle ve lof pro‐
te ction ifit is wo rncor rectl y.Dep endingonthe
de tected acci dent situation, Emerg encyTensi on‐
ing Device sand /or airba gssupp lement thepr o‐
te ction offere dby acor rectl ywo rnseat belt.
Emer gency Tensi oni ng Device sand /or airba gs
ar eno tde ploy ed ineve ryacc iden t. In
order forth ere stra int system toprov ide the
int ended leve lof protect ion, eachve hicle occu‐
pant mustobser vethefo llo wing informatio n:
R Fasten seat belts correctl y.
R Sitinan almos tup right seat position with
th eir bac kag ains tth eseat backres t.
R Sitwithth eir feet resting onthefloor ,if pos‐
sible.
R Alw ayssecur eper sons under 5ft (1.50 m)
ta llin an addition alrestra int system suitable
fo rMer cedes-Benz vehicles.
Ho wever,no system available toda ycan com‐
ple tely elim inat einj uries and fata lities ineve ry
acc iden tsit uatio n.Inpar ticular ,th eseat belt
and airbag gener ally do notpr otect agains t
objec tspene trating theve hicle from theoutside.
It is also notpossible tocom plet elyru le out the
ri sk ofinjur ycaused bytheairbag deploying. Re
duce dre stra int system protection &
WARNIN GRisk ofinju ryor deat hdue to
modif icationstothere stra int system
Ve hicle occupants mayno long erbe protec‐
te das intended ifalt erations aremade tothe
re stra int system. #
Neveralt er thepar tsof there stra int
sy stem. #
Neverta mp erwit hth ewir ing orany
electr oniccomponen tpar tsor their
sof tware. If
it is neces saryto modify theve hicle toacc om‐
modat eaper son withdisabil ities, con tact an
au thor ized Mercedes-B enzCent erforde tails.
US Aonl y:forde tails, con tact ourCu stomer
Assis tance Center on 1-800-F OR-MER Cedes
(1‑80 0‑367‑63 72). Re
stra int system functiona lity When
theignition isswitc hedon,aself-t estis
per form ed, during whic hth e0075 restra int sys‐ 36
Occupant safety

te
m wa rning lam plight sup. Itgoes outnolater
th an afe w sec ond saf te rth eve hicle isstar ted.
The com ponen tsof there stra int system areth en
func tional. Malfu
nctioning restra int system A
malfun ction has occurredin there stra int sys‐
te m if:
R The 0075 restra int system warning lam p
does notlight upwhen theignition is
switc hedon
R The 0075 restra int system warning lam p
light sup con tinuousl yor repeat edly during a
jour ney &
WARNIN GRisk ofinju rydue tomalfu nc‐
tions inthere stra int system
Com ponen tsinthere stra int system maybe
activ ated unint entionall yor notdeplo yas
planned inan acciden t. #
Have there stra int system checkedand
re pair edimmediat elyat aqu alif ied spe‐
cialis two rkshop. Fu
nction ofthere stra int system inan acci‐
dent Ho
wthere stra int system worksis de term ined by
th ese verity of theim pact detected and thetype
of acciden tantic ipated:
R Front alim pact
R Rear impact
R Sideim pact
R Rollover
The activ ation thre sholds forth ecom ponen tsof
th ere stra int system arede term ined based on
th eev aluatio nof thesensor values measur edat
va rious points intheve hicle. Thisprocess ispre-
em ptive in nat ure. The trigg ering/ deplo yment of
th ecom ponen tsof there stra int system mus t
ta ke place ingood timeatthest ar tof thecolli‐
sion.
Fa ctor swhi chcan only besee nand measured
af te ra colli sion hasoccur reddo notpla ya deci‐
siv ero le in thedeplo yment ofan airbag. Nordo
th ey prov ide anindic ation ofairbag deployment .
The vehicle maybe def ormed signif icantl ywit h‐
out anairbag beingdeployed. This isthecase if onl
ypar tswhic har ere lativ elyeasil ydef ormed
ar eaf fect ed and thera te ofvehicle deceler ation
is no thigh. Conversely ,an airbag maybe
deplo yedev en though theve hicle suffers onl y
minor deformation. Ifve ry rigid vehicle parts
suc has longitudinal membersar ehit, this ma y
re sult insuf ficie ntly highleve ls of vehicle decel‐
er ation.
Depending onthede tected dep loyme ntsitu a‐
tion, thecom ponen tsof there stra int system can
be activ ated ordeplo yedindepen dentlyof eac h
ot her :
R Emer gency Tensi oni ng Device :fr ont al
im pa ct, rear impact ,side impact ,ro llo ver
R Driver' sai rba g,front passe nger airba g:fron‐
ta lim pact
R Knee airbag: front alim pact
R Side airbag: sideimpact
R Windo wcur tain airbag: sideimpact ,ro llo ver,
fr ont alim pact
The front passeng erairb agcan onlybe depl oyed
in an acciden tif th ePA SSENGER AIRBAGOF F
ind icat orlam pis off.Ifth efront passeng erseat Occ
upant safety 37

is
occ upied, makesur e,bo th bef oreand during
th ejour ney,that thest atus ofthefront
passeng erairbag iscor rect (/ page 47). &
WARNIN GRisk ofburnsfrom hotair bag
com ponents
The airbag partsareho taf te ran air bag has
been deployed. #
Donotto uc hth eair bag parts. #
Have adeplo yedair bag replaced ata
qu alif ied spec ialistwo rkshop assoon
as possible . Mer
cedes-Benz recomme ndsthat youha ve the
ve hicle towe dto aqu alif ied spec ialistwo rkshop
af te ran accide nt.Take this int oacc ount ,par tic‐
ular lyifan Em erge ncy Tensi oni ng Device istrig ‐
ge redor an airbag deployed.
If th eEmer gency Tensi oni ng Device sar etrig ‐
ge redor an airbag isdeplo yed, youwill hear a
ban g,and asmal lamoun tof powder mayalso be
re leased:
R The bang willnotge ner ally affect your hear ‐
ing . R
Ingener al,th epo wder released isno thaz‐
ar dous tohealt hbut maycause short-term
br eat hing difficul ties toper sons suffering
fr om asthma orother pulmonar yconditions .
Pr ov ided itis saf eto do so, leavetheve hicle
immediat elyoropen thewindo win order to
pr eve ntbrea thing difficul ties .
Airb agsand pyrotech nic Emerg encyTensi oni ng
De vice scont ain pe rchlor atemat erial, whic hma y
re qu ire spec ialhandlin gor environm entalpro‐
te ction measures. Na tional guideline sre ga rding
wa ste disposal mustbe obser ved. InCalif ornia,
see https:/ /dtsc.ca.go v/.Using thesear ch
function, youwill find informa tionon perchlo‐
ra te,fo rex am ple. Seat
belts Pr
otection prov ided bytheseat belt Alw
aysfa sten your seat beltcorrect lybef ore
st ar tin gajo ur ne y.Asea tbe ltcan only prov ide
th ebes tle ve lof protect ion ifit is wo rncor rectl y. &
WARNIN GRisk ofinju ryor deat hdue to
inc orrectl yfa stened seatbelt
If th eseat beltisno two rncor rectly ,it can‐
no tper form itsintended protect ive func tion.
In addition, anincor rectly fastened seatbelt
can also cause injuries,forex am ple, inthe
ev ent ofan acciden tor when braking or
ch ang ingdirect ion sudden ly. #
Alw aysensur eth at all vehicle occu‐
pants have their seat belts fastened
cor rectl yand aresitti ngprope rly. Alw
aysobser vetheins truction sabout thecor‐
re ct driver's seatpos ition and adjus ting theseat
(/ page87 ).
In order forth ecor rectly wornseat belttopro‐
vide theint ended leve lof protect ion, eachve hi‐
cle occupant mustobser vethefo llo wing infor‐
matio n:
R The seat beltmustno tbe twis tedand must
fi t tig htly and snuglyacr oss thebody . 38
Occupant safety