ignition MERCEDES-BENZ C-CLASS CABRIOLET 2019 Owner's Manual

Re
stra int system functiona lity When
theignition isswitc hedon,aself-t estis
per form ed, during whic hth e0075 restra int sys‐
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 the0075 restra int system warning lam pdoes
no tlight upwhen theignition isswitc hedon
R the0075 restra int system warning lam p
light sup con tinuousl yor repeat edly during a
jour ney 000A
WARNIN GRisk ofinju ryor fata linj ury
due toamalf unctionin there stra int sys‐
te m
If th ere stra int system ismalfunct ioning,
re stra int system com ponen tsma ybe trig‐ ge
redunint entionall yor might notbe trig‐
ge redat all intheev ent ofan acciden t.This
ma yaf fect theEmer gency Tensi oni ng Device
or airba g,forex am ple. 0007
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 ofth
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, forex am‐
ple, this ma yre sult insuf ficie ntly highleve ls of
ve hicle deceler ation. 34
Occupant safety

0007
Mak esur eth at theseat belts are
undamag ed,notwo rnand clean. 0007
Alw aysha ve theseat belts checked
immed iatelyaf te ran accide ntata
qu alif ied spec ialistwo rkshop. Onl
yuse seat belts whichha ve been approved
fo ryo ur vehicle byMer cedes-Ben z. 000A
WARNIN GRisk ofinju ryor deat hfrom
deplo yedpy rotech nic Emerg encyTen‐
si oni ng Device s
Py rotech nic Emerg encyTensi oni ng Device s
th at have been deployedar eno long eroper a‐
tion aland areunable toper form their inten‐
ded protect ive func tion. 0007
Ther efor e, have deplo yedpy rotech nic
Emerg encyTensi oni ng Device simm edi‐
at ely replaced ataqu alif ied spec ialist
wo rkshop. Mer
cedes-Benz recomme ndsthat youha ve the
ve hicle towe dto aqu alif ied spec ialistwo rkshop
af te ran accide nt. 000E
NO
TEDama gecau sed bytrap ping the
seat belt If
an unused seatbeltisno tfully retract ed,it
ma ybe come trap pe din thedoor orinthe
seat mechanism. 0007
Alw aysensur eth at an unus edseat belt
is full yre tract ed. Ex
tending/r etra ctin gth eseat beltextender The
seat beltextende rfo rth efront seat helps
yo ufa sten your seat belt.When thedoor is
closed, theseat beltextende rex tends.
The seatbe ltex tende rbu tton mayal so be loca‐
te din thecon trol panel abovethelight switc hin
Mer cedes- AMGvehicles.
Yo ucan also extend theseat beltextende rus ing
th eseat beltextende rbu tton. 0007
Swi tchon theignition . 0007
Press seat beltextende rbu tton 1.
The seatbe ltex tende rex tends.
The seatbe ltex tende rre tracts again in thefo l‐
lo wing cases :
R The seat belttongu eis eng aged intheseat
belt buckle 38
Occupant safety

R
The front passeng erseat hasbeen moved
as farbac kas possi ble.
R The person isseat edcor rectl y. 0007
Ensu re,bo th bef oreand during thejour‐
ne y,that thest atus ofthefront
passeng erairbag iscor rect. If
th efront passeng erseat isoccupied, theclas‐
sif ication oftheper son orchild restra int system
on thefront passeng erseat take splace afte rth e
fr ont passeng erfront airbagshut offself-t est.
The PASSENGER AIRBAGind icat orlam psdis‐
pla yth est atus ofthefront passeng erfront air‐
bag.
Alw aysobser vetheno teson thefunc tion ofthe
PA SSENGER AIRBAGind icat orlam ps
(0013 page45). Fu
nction ofthePA SSEN GERAIRBAGindic a‐
to rlam ps Se
lf-te st of aut oma ticfront passeng erfront
air bag shutoff
When theignition isswitc hedon,aself-t estis
per form ed dur ing whic hth etw oPA SSENGER
AIR BAGON and OFFind icat orlam pslight up
simul taneou sly. The
status ofthefront passeng erfront airbag is
displa yedaf te rth eself-t est:
R PASSENGER AIRBAGON light sup for
60 seconds ,sub sequently both indic ator
lam psareof f(P AS SENGER AIR BA GON and
OF F): thefront passeng erfront airbag isable
to deplo yin theeve ntofan acci dent.
R PASSENGER AIRBAGOF Flight sup con tinu‐
ousl y:thefront passeng erfront airbag isdis‐
abled. Itwill then notbe deplo yedin the
eve ntofan acci dent.
If th ePA SSENGER AIRBAGON indicat orlam pis
of f,on lythePA SSENGER AIRBAGOF Find icat or
lam psho wsthest atus ofthefront passeng er
fr ont airbag. ThePASSENGER AIRBAGOF Find i‐
cat orlam pma ybe litcon tinuousl yor be off.
If th ePA SSENGER AIRBAGOF Find icat orlam p
and the0075 restra int system warning lam p
light upsimultaneousl y,thefront passeng erseat
ma yno tbe used. Alsointhis case, donotins tall
a ch ild restra int system onthefront passeng er
seat. Have aut omat icfron tpasse nger fron tair‐
bag shut offch eckedand repair edimmediat elyat
a qu alif ied spec ialistwo rkshop. Occupant
safety 45

Ac
tiv atin g/deac tivatin gthe trunk lid ope ning
hei ght restriction Mult
imed iasystem:
0018 Vehicle 0019
î Vehicle Setting s
0019 Trunk LidRestric tion
This function allowsyouto avo idbum ping the
tr unk lid on alow ga rage ceiling, forex am ple. 0007
Activate0073 ordeacti vate 0053 thefunc tion. Side
windo ws Opening
andclosing theside windo ws 000A
WARNIN GRisk ofentr apment when
ope ning asid ewi ndo w
Whe nope ning asid ewi ndo w,par tsof the
body could bedraw nin or become trap pe d
be twee nth eside windo wand windo wframe. 0007
When opening ,mak esur eth at nobody
is touc hin gth eside windo w. 0007
Ifsomeone istrappe d,release thebut‐
to nimm ediate ly or pullit in order to
clos eth eside windo wag ain. 000A
WARNIN GRisk ofbeco ming trap ped
whe nclos ingasid ewi ndo w
Whe nclos ingasid ewi ndo w,body parts
could betrapped intheclosing area inthe
pr ocess. 0007
When closing,mak esur eth at no body
par tsarein theclosing area. 0007
Ifsomeon eis tra pped, release thebut‐
to nimm ediate ly or pres sth ebutt onin
or der toreopen theside windo w. 000A
WARNIN GRisk ofbeco ming trap ped
whe nch ildr enopera tetheside windo ws
Childr encould become trapped ifth ey oper‐
at eth eside windo ws,par ticular lywhen unat‐
te nde d. 0007
Neverlea vechildr enunat tende din the
ve hicle. 0007
When leaving theve hicle, alwaysta ke
th eSmar tKey wit hyo uand lockth e
ve hicle. Re
quirement s:
R The powe rsupp lyor theignition isswitc hed
on. Openin
gand closing 73

1
Close s
2 Open s
The buttons on thedr iver's door take prece‐
denc e. 0007
Tostar taut omatic operation :pr ess the
0062 buttonbeyond thepoint ofresis tance
or pulland release it. 0007
Tointerru pt aut omatic operation :pr ess or
pul lth e0062 buttonagain.
0009 Automatic operation forclosi ngisavailable
on lyforth efront side windo ws.
When theve hicle isswitc hedoff,th eside win‐
do ws can continu ebei ng ope rated.
The func tion isavailable forar ound five minut es
or until adoor isopened . All
side windo wscan beope ned orclos edsim ul‐
ta neou slyusing button 1. 0007
Swi tchon theignition . 0007
Toopen: press and hold button1 tothe
point ofresis tance. 0007
Toopen fully:pr ess and hold button1
be yond thepoint ofresis tance. 0007
Toclose: pulland hold button1.
Au tomatic reve rsing funct ionoftheside win‐
do ws
If an object blocksaside windowduring the
clos ingproces s,theside windo wopens again
aut omaticall y.The automatic reve rsing func tion
is onl yan aid and isno ta subs titutefo ryo ur
att entiven ess . 0007
When closing,mak esur eth at no body parts
ar ein theclosing area. 74
Opening andclosing

Sof
tto p Opening
andclosing thesof tto pusi ng the
so ft-top swi tch 000A
WARNIN GRisk ofbeco ming trap ped
du eto thesof tto plowe ring une xpect‐
ed ly
If yo udo notfull yopen /close thesof tto p,
th esof t-to phy draulics depressur izeafte ra
shor ttime.
This caus esthesof tto pto lowe rune xpect‐
edly andmaycaus eyo uor other sto be trap‐
ped. 0007
Alw aysfully open orclose thesof tto p. 000A
WARNIN GRisk ofbeco ming trap ped
whe nope ning/cl osing thesof tto p.
When openin gor closin gth esof tto p, ther e
is arisk that par tsof thebody could become
tr apped bymo ving partssuc has thero of
mec hanism, thetrunk lid,ortheside win‐
do ws . 0007
When opening orclosing, makesur e
th at no body partsarein thevicinit yof
mo ving componen ts. 0007
Release thebutt onifsomebody
becomes trapped. 000E
NO
TEPossible damag eto thesof tto p
when openingorclos ing The
softto pcan bedamag edwhen openin g
or closin g. 0007
Mak esur eth er eis suf ficie ntcle arance
ab ove it. 0007
Onlyload thetrunk belowthetrunk
separ ator so that itwill notbe pushe d
upw ards. 0007
Mak esur eth at thetrunk lidisclosed. 0007
Ifth esof tto pis dir ty,we tor froze n,do
no top en thesof tto p. 000E
NO
TEDama getothesof tto pcaused by
hea vyobject s Hea
vyobject splaced onthesof t-to pcom‐
par tmen tco vercan dama gethesof tto por
sof t-to pcom partmen tco ver. 0007
Donotpl ace heavyobj ects on thesof t-
to pcom partmen tco ver. 0007
Donotsi ton thesof t-to pcom partmen t
co ver. Fo
rsaf etyre ason s,Mer cedes-Ben zre comme nds
ope ning orclos ingthesof tto pwhen theve hicle
is statio nary.
To open orclose thesof tto pwhile youar edr iv‐
ing ,do notexc eed amaximum speedof30 mph
(50 km/ h).Toavo idint erru pting theclosing
pr ocess whileyouar esligh tly ex ceed ingthis
speed, donotdr ive at aspeed great erthan
37 mph(60 km/h). 0007
Mak esur eth at thetrunk partition isclosed. 0007
Close thetrunk lid. 0007
Switc hon theignition . 78
Opening andclosing

R
Awi nd screenbe hind both rear seat head
re stra int s
When AIRC AP isacti vated, thewind deflect or
and thewind screen extend simu ltane ously .
AIR CAPcan beactiv ated ordeactiv ated at
speeds ofup toappr oximat ely10 0mp h
(1 60 km/ h). 000A
WARNIN GRisk ofbeco ming trap ped
whe nre tracti ngAIR CAP
It is possib leforper sons tobecome trapped
when retracti ngAIR CAP. 0007
Mak esur eth at per son sdo nothold
on to theupper frame ofthewindshield
and donotto uc hth ewind deflect oror
th ewind screen. 0007
Switc hon theignition . 0007
Toactiv ate: pul lbutt on1.
AIR CAPex tends and theindicat orlam pon
butt on1 lights up. 0007
Todeac tivate: press button 1.
AIR CAPre tracts andtheindicat orlam pon
butt on1 goes out. If
th eve hicle ispar kedwit hth esof tto popen
and theignition isswitc hedoff,AIR CAPwill
re tract automatical ly.
When youre star tth eengine afte rha ving been
par ked, AIR CAPwill extend again au tomatical ly. Ins
tall ing and remo ving the folding wind
scr een 000A
WARNIN GRisk ofacci dent whenus ing
th ewind screen inpoor visibility condi‐
tion s
The wind screen impair syo ur vie wto the
re ar,par ticular lywh en dark or inpoor visibil‐
ity condit ions. 0007
Onlyuse thewind screen ingood visibil‐
ity con ditions . Openin
gand closing 81

Fo
llowtheins truction sin reve rseor der to
re mo vethefo lding windscreen. Pr
oblems withth esof tto p Pr
oblem
Possible causes/conseq uencesand0050 0050
Solutions
The softto pwill notopen orclose. Theignit ionisno tswitc hedon. 0007
Mak esur eth at theignition isswitc hedon.
The on-boar delectr icalsystem voltag eis toolow. 0007
Startth eengine.
The softto phas been opened andclosed severaltim esinarow .The soft-top drive ha sbee nsw itched off
au tomatical lyand willbeavailable again afte rapp roxima tely tenminu tes. 0007
Repeat theopening orclosing procedur eaf te rapp roxima tely tenminu tes.
The trunk partition isno tclosed. 0007
Remo veoverhanging luggageand close thetrunk partition.
The trunk lidisopen. 0007
Close thetrunk lid(0013 page71 ).
Th eme chanic alsof t-to pcom ponen tsor con trol system aredef ective. 84
Opening andclosing

Pr
oblem
Possible causes/conseq uencesand0050 0050
Solutions 0007
Visit aqu alif ied spec ialistwo rkshop.
Yo uar edr ivin gat aspee dgr ea terth an 37 mph(60 km/h). 0007
Reduce your spee dto belo w37 mph(60 km/h). Anti-t
heftpr otection Fu
nction oftheimm obiliz er The
immo bilizerpreve nts your vehicle from being
st ar tedwit hout thecor rect Smar tKey .
The immobilizer isaut omaticall yactiv ated when
th eignition isswitc hedoffand deactiv ated when
th eignition isswitc hedon.
When leaving theve hicle, alwaysta ke theSmar t‐
Ke ywit hyo uand lockth eve hicle. Anyone can
st ar tth eengine ifava lid Smar tKey has been left
inside theve hicle.
0009 Intheeve nttheengine cannotbe star ted
(y et theve hicle ’sstar terbatt eryis ch arge d),
th esy stem isno toper ational. Contactan
aut hor ized Mercedes- BenzCenteror call 1-8
00-FOR-MER Cedes (intheUS A)or
1-8 00-387-0 100(in Canada). ATA
(anti-thef tala rm system) Fu
nction oftheATA system
If th eATA system isarmed, avisual andaudible
alar mistrigg ered inthefo llo wing situat ions:
R when adoor isopen ed
R when thetrunk lidisopened
R when thehood isopened
The ATA system isarmed automaticall yaf te r
appr oximat elyte nseco ndsinthefo llo wing situa‐
tion s:
R afte rloc king theve hicle withth eSmar tKey
R afte rloc king theve hicle using KEYLES S-GO Indicat
orlam p1 flashes whentheAT Asy stem
is armed. Openin
gand closing 85

Seats
Ad
jus tingthe fron tse at mec hanicall yand
el ec tric all y(w ithou tSe at Co mf ortPa ckag e) 000A
WARNIN GRisk ofbeco ming trap ped if
th eseats areadjus tedby childr en
Childr encould becom etrapped ifth ey adjus t
th eseats, particular lywhen unattended. 0007
When leaving theve hicle, alwaysta ke
th eSmar tKey wit hyo uand lockth e
ve hicle. 0007
Neverlea vechildr enunat tende din the
ve hicle. The
seats canbeadjus tedwhen theignition is
switc hedoff. 000A
WARNIN GRisk ofbeco ming trap ped
whe nad jus ting theseats
When youadj usta seat ,yo uor other vehicle
occupants couldbecome trapped, e.g.onthe
seat guide rail. 0007
When adjustingaseat, makesur eth at
no onehas anybody partsinthesw eep
of theseat. Obser
vethesaf etyno teson "Airbags" and"Chil‐
dr en intheve hicle". 000A
WARNIN GRisk ofacci dent dueto the
dr iver's seat notbeing engaged
If th edr iver's seat isno teng aged, itcould
mo veune xpectedl ywhile theve hicle isin
mo tion.
This could cause youto lose control of the
ve hicle. 0007
Alw aysmak esur eth at thedr iver's seat
is eng aged bef orest ar tin gth eve hicle. 000A
WARNIN GRisk ofinju ryfrom adju sting
th eve hicle settin gswhile theve hicle isin
mo tion
Yo uco uld lose contro lof theve hicle inthe
fo llo wing situat ions:
R ifyo uadj ustth edr iver's seat, thehead
re stra int ,th esteer ing wheel orthemir ror
while theve hicle isin mo tion
R ifyo ufa sten your seat beltwhile theve hi‐
cle isin mo tion 0007
Beforest ar tin gth eengine: adjustth e
dr iver's seat, thehead restra int ,th e
st eer ing wheel orthemir rorand fasten
yo ur seat belt. 000A
WARNIN GRisk ofbeco ming trap ped if
th eseat height isadjus tedcar elessl y
If yo uadj ustth eseat height carelessly ,yo u
or other vehicle occupants couldbetrapped
and ther eb yinjur ed. 88
Seats andstow ing