2019 MERCEDES-BENZ CLA COUPE airbag disable

and
tohave anymalf unctionin gair bags
repai red.This willhelp tomak esure theair bags
con tinue toperf orm their prot ective function for
th eveh icle occupant sin theeven tof acr ash. G
WAR
NING
Em erg enc yTen sion ingDevic es that have
deplo yedpyrot echnically arenolon ger oper a-
tio nal and areunabl eto perf orm their inten-
ded protective function .This pose san
inc reas edrisk ofinjury oreven fatalinj ury.
Hav epyrot echnically trigger edEm erg enc y
Ten sion ingDevic esrepl aced immediat elyata
qualifi edspec ialist workshop.
If Em erg enc yTen sion ingDevic es are trigger ed
or air bags aredeplo yed,youwillhear abang ,
and somepowder mayalsoberele ased. The
0075 restraint systemwarn inglamp lightsup.
On lyin rar ecas eswill thebang affect your hear-
ing .The powder that isrele ased generally does
no tcon stitut eahealt hhaz ard, butitmay cause
shor t-te rm breat hingdiff icult iesinpeopl ewith
ast hma orother respirat oryprob lems .Pro vide d
it is safe todo so, you shoul dleave theveh icle
imm ediat elyoropen thewind owinorde rto pre-
ven tbreat hingdiff icult ies.
Air bags andpyrot echnicEmerg enc yTen sion ing
De vic es (ET Ds)con tain perc hloratemat erial,
whic hmay requi respec ialhan dlingand regard
for theenv iron men t.Nat ionalguideli nesmust
be obse rved durin gdispo sal.InCalifo rnia, see
www.d tsc.ca .gov/Ha zardousW aste/
Per chlor ate/ind ex.cfm .
Met hod ofoper ation Dur
ingthefir st stage ofacol lision ,th eres traint
syst emcontrol unit evaluat esimpo rtant physi-
cal datarelat ingtoveh icle deceler ationor acc el-
erat ion,suc has:
R durat ion
R dire ction
R int ens ity
Bas edon theevaluat ionofthis dat a,the
res traint systemcontrol unit trigger sth eEm er-
gen cyTen sion ingDevic es durin gahead- onor
rear -endcol lision . An
Emerg enc yTen sion ingDevic ecan onlybe
tr igger ed,if:
R theign ition isswit ched on
R thecom ponentsof theres traint systemare
oper ational. You canfindfur ther inform ation
unde r"Rest raintsyst emwarn inglamp"
(Y page 41)
R theseat beltbuck letong ue has engaged in
th ebelt buck leof theres pec tivefron tseat
The Emerg enc yTen sion ingDevic es intherear
passe nger com partmen tare trigger edinde-
pen dentlyoftheloc kst atus oftheseat belts.
If th eres traint systemcontrol unit detectsa
mor esev ere acciden t,fur ther com ponentsof
th eres traint systemare activat edindepen d-
ent lyof each other incer tain fron tal collision
sit uatio ns:
R Fron tair bags aswell asdriv er'sand fron t-
passe nger knee bags
R Win dow curtain airbag, ifth esyst emdeter-
min esthat deplo ymentcan offeraddit ional
prot ection tothat prov ided bytheseat belt
De pen dingon thepers oninthefron t-passe nger
seat ,th efron t-passe nger fron tair bag iseit her
disable dor enab led.Thefron t-passe nger fron t
air bag canbedeplo yedinan acc iden ton lyifth e
PA SS EN GER AIRBA GOF Find icat orlamp isoff .
Obse rveth einf orm ationon thePA SS EN GER AIR
BA Gind icat orlamps (Ypage 41).
Your vehicle has two-stag efron tair bags. Atthe
fir st deplo ymentth res hold thefron tair bag fills
with gas.Ifth esec onddeplo ymentth res hold is
th en reac hedwith inafew millis econds,th efron t
air bag isfille dwith themax imum quantityof
gas.
The activat ion thres hold oftheEm erg enc yTen -
sion ingDevic es and theair bags isdet erm ined
by evaluat ingtherat eof veh icle deceler ationor
acc eler ationwhic hocc urs atvar ious pointsin
th eveh icle.This processispre- empt ivein
nat ure. Deploym entshoul dtak eplace ingood
tim eat thest art ofthecol lision .
The rateof veh icle deceler ationor acc eler ation
and thedire ction ofthefor ce are esse ntially
det erm inedby:
R thedist ribut ionoffor ces durin gth ecol lision
R thecol lision angle
R thedefo rmatio nch arac terist ics oftheveh icle
R thech arac terist ics oftheobj ect with which
th eveh icle has collided
Fac tors whic hcan onlybe seen andmeas ured
aft eracol lision hasoccurre ddo notplay adec i- Occup
antsafety
53Safety Z

Disp
laymes sages Poss
iblecauses/co nsequences and 0050 0050
Solu tions Fro
nt Fro
ntPas senger Pas
senger Air‐ Air
‐
bag DisabledSee bag
DisabledSee
Ope rator'sMan ual Ope
rator'sMan ual The
fron t-pass enger airbag and fron t-pass enger knee bag aredeac -
ti vat ed duri ngthejo urn ey, althoug h:
R an adult
or
R aper son oftheco rresp ondin gst atur eis on thefron t-pass enger seat
If addit ionalfor cesare applie dto theseat ,th esyst emmay interp ret
th eoc cup ant'sweigh tas lower than itact ually is.
G WAR
NING
The fron t-pass enger fron tair bag and fron tpass enger knee bag may
no tbe trigge redintheeve ntofan acc iden t.
The reisan increas edriskof injury.
X Pull overand stop theveh iclesaf ely assoo nas pos sible,payin g
att ention toroa dand traff icco nd ition s.
X Se cur eth eveh icleagain strol lingaway (Ypage 142).
X Swi tchth eign ition off.
X Hav eth eoc cup ant onthefron t-pass enger seat getout oftheveh i-
cle .
X Kee pth eseat unoccupied ,clo sethefron t-pass enger door and
swit chon theign ition .
X Obs erveth ePA SS EN GER AIR BA Gind icat orlamp sin thece nter
co nsole and themult ifunction disp layand checkth efol lowin g:
Se at uno ccupied andignition swit ched on:
R aself -diagn osis iscar riedout .The PASS EN GER AIRBA GOF Fand
PA SS EN GER AIR BA GON indicat orlamp smus tligh tup sim ulta-
ne ousl yfor appr oximat elysixsec onds.
R thePA SS EN GER AIRBA GOF Find icat orlamp mustth en ligh tup
and remainlitaft ertheself -diagn osis.If th eind icat orlamp ison ,
OCS (Occup ant Class ification Sys tem) has deac tivat edthefron t-
pass enger fron tair bag and fron t-pass enger knee bag
(Y page 48)
R theFro ntPassenger Airbag EnabledSee Operator's Fro
ntPassenger Airbag EnabledSee Operator's
Man ual Man
ual orFro ntPassen ger Airbag DisabledSee Opera‐ Fro
ntPassen ger Airbag DisabledSee Opera‐
tor 's tor
'sMan ual Man
ual displaymes sage smus tno tbe sho wnonthemul-
ti fun ction disp lay
X Wait foraper iod ofat least 60sec onds unt ilth ene cessar ysyst em
ch ecks hav ebeen compl eted.
X Mak esur eth at thedisp laymes sage sdo notappear inthemult i-
fun ction disp lay.
If th ese cond ition sare fulfilled ,th efron t-pass enger seat canbeoccu-
pied again .Whe ther thePA SS EN GER AIR BA GOF For ON indicat or
lamp remainslit or goe sout depe ndson how OCS classifies theoc cu-
pan t.
If th eco nd ition sare notfulf illed ,th esyst emisno toper ating correc tly.
X Vis itaqualif iedspecialistwor kshop immediat ely.
Fur ther inform ation about theOc cup ant Class ification Sys tem
(Y page 48). 202
Disp
laymes sage sOn -boar dcomp uter anddi sp lay s

Disp
laymes sages Poss
iblecauses/co nsequences and 0050 0050
Solu tions Fro
nt Fro
ntPas senger Pas
senger Air‐ Air
‐
bag EnabledSee bag
EnabledSee
Ope rator'sMan ual Ope
rator'sMan ual The
fron t-pass enger airbag and fron t-pass enger knee bag areenabled
duri ngthejo urn ey, eventh ough :
R ach ild, asma lladult oran obj ectweigh ingless than thesyst em's
weigh tth res hold isloc ate don thefron t-pass enger seat
or
R thefron t-pass enger seat isuno ccupied
The syst emmay detectobj ectsor for cesapplyin gaddit ionalweigh ton
th eseat .
G WAR
NING
The fron t-pass enger fron tair bag and fron t-pass enger knee bag may
be trigge reduninten tion ally.
The reisan increas edriskof injury.
X Pull overand stop theveh iclesaf ely assoo nas pos sible,payin g
att ention toroa dand traff icco nd ition s.
X Se cur eth eveh icleagain strol lingaway (Ypage 142).
X Swi tchth eign ition off.
X Ope nth efron t-pass enger door .
X Remo vethech ild and thech ild res train tsyst emfrom thefron t-
pass enger seat .
X Mak esur eth at there arenoobj ects on theseat addin gto the
weigh t.
The systemmig htother wise detectth eaddit ionalweigh tand inter-
pre tth eseat occup ant'sweigh tas gre aterth an itact ually is.
X Kee pth eseat unoccupied ,clo sethefron t-pass enger door and
swit chon theign ition .
X Obs erveth ePA SS EN GER AIR BA Gind icat orlamp sin thece nter
co nsole and themult ifunction disp layand checkth efol lowin g:
Se at uno ccupied andignition swit ched on:
R aself -diagn osis iscar riedout .The PASS EN GER AIRBA GOF Fand
PA SS EN GER AIR BA GON indicat orlamp smus tligh tup sim ulta-
ne ousl yfor appr oximat elysixsec onds.
R thePA SS EN GER AIRBA GOF Find icat orlamp mustth en ligh tup
and remainlitaft ertheself -diagn osis.If th eind icat orlamp ison ,
OCS hasdeac tivat edthefron t-pass enger fron tair bag and fron t-
pass enger knee air bag (Ypage 48)
R theFro ntPassen ger Airbag EnabledSee Operator's Fro
ntPassen ger Airbag EnabledSee Operator's
Man ual Man
ual orFro ntPassenger Airbag DisabledSee Opera‐ Fro
ntPassenger Airbag DisabledSee Opera‐
tor 's tor
'sMan ual Man
ual displaymes sage smus tno tbe sho wnonthemul-
ti fun ction disp lay
X Wait foraper iod ofat least 60sec onds unt ilth ene cessar ysyst em
ch ecks hav ebeen compl eted.
X Mak esur eth at thedisp laymes sage sdo notappear inthemult i-
fun ction disp lay.
If th ese cond ition sare fulfilled ,th efron t-pass enger seat canbeoccu-
pied again .Whe ther thePA SS EN GER AIR BA GOF For ON indicat or
lamp remainslit or goe sout depe ndson how OCS classifies theoc cu-
pan t. Disp
laymes sage s
203On -boar dcomp uter anddi sp lay s Z