ignition MERCEDES-BENZ C-CLASS CABRIOLET 2020 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 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
If th ere stra int system ismalfunct ioning,
re stra int system com ponen tsma ybe trig‐ ge
redunint entionall yor ma yno tdeplo yas
int ended during anacciden t.This mayaf fect
th eEmer gency Tensi oni ng Device sor air‐
ba gs, forex am ple. #
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. Occupant
safety 35

#
Mak esur eth at theseat belts areno t
damag ed,areno two rnand arecle an. #
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. &
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. #
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. *
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. #
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. #
Swi tchon theignition . #
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 Occ
upant safety 39

R
The front passeng ersits insuc hawa yth at
th eir weight israised from thesitt ing sur‐
fa ce. &
WARNIN GRisk ofinju ryor deat hdue to
deactiv ated front passeng erairbag
If th ePA SSENGER AIRBAGOF Find icat or
lam pis lit,th efront passeng erairbag isdisa‐
bled. Itwill notbe deplo yedin theev ent of
an acciden tand cann otper form itsintended
pr otect ive func tion.
A per son inthefront passeng erseat could
th en, forex am ple, com eint ocon tact with
th eve hicle interior ,especially ifth eper son is
sitt ing tooclose tothecoc kpit.
If th efront passeng erseat isoccupied,
alw aysensur eth at:
R The classificat ion oftheper son inthe
fr ont passeng ersea tis cor rect and the
fr ont passeng erairb agisenabl edordisa ‐
ble din accor dance withth eper son inthe
fr ont passeng ersea t. R
The front passeng ersea thas been moved
as farbac kas possi ble.
R The person isseat edcor rectl y. #
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 erairb agshut offself-t est.The
PA SSENGER AIRBAGind icat orlam psdispla yth e
st atus ofthefront passeng erairbag.
Alw aysobser vetheno teson thefunc tion ofthe
PA SSENGER AIRBAGind icat orlam ps
(/ page46). Fu
nction ofthePA SSEN GERAIRBAGindic a‐
to rlam ps Se
lf-te st of aut oma ticfront passeng erair bag
shu toff
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. 46
Occupant safety

#
Onlyload thetrunk belowthetrunk
separ ator so that itwill notbe pushe d
upw ards. #
Mak esur eth at thetrunk lidisclosed. #
Ifth esof tto pis dir ty,we tor froze n,do
no top en thesof tto p. *
NO
TEDama getothesof tto pcaused by
hea vyobjects Hea
vyobject splaced onthesof t-to pcom‐
par tmen tco vercan dama gethesof tto por
sof t-to pcom partmen tco ver. #
Donotpl ace heavyobj ects on thesof t-
to pcom partmen tco ver. #
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). #
Mak esur eth at thetrunk partition isclosed. #
Close thetrunk lid. #
Switc hon theignition . #
Keep thebr ak epedal depressed whenthe
ve hicle isstatio nary. #
Toopen: pulland hold soft-to pswitc h1
until thesof tto pis full yopen.
The multifun ction displa ywill showtheopen‐
ing process ofthesof tto p. #
Toclose: press and hold soft-to pswitc h1
until thesof tto pis full yclosed.
The multifun ction displa ywill showtheclos‐
ing process ofthesof tto p. &
WARNIN GRisk ofacci dent dueto
exc essiv espeed during thesof t-to p
opening orclosing procedur e
If th eve hicle speed exceeds 37mph
(60 km/ h),thesof tto pstops during the
opening orclosing procedur e.
This impair syo ur vie wto there ar. #
Reduce theve hicle speed tobelo w
37 mph(60 km/h) orstop theve hicle,
pa ying attention toroad and traf fic con‐
di tions . #
Ope rate thesof t-to pswitc hag ain in
or der toopen orclose thesof tto pfull y. 76
Opening andclosing

#
Swi tchon theignition . #
Toactiv ate: pul lbutt on1.
AIR CAPwill extend and theindicat orlam pon
butt on1 will light up. #
Todeac tivate: press button 1.
AIR CAPwill retract and theindicat orlam pon
butt on1 will goout. 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 &
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. #
Onlyuse thewind screen ingood visi‐
bility conditions . &
WARNIN GRisk ofacci dent andinjury
due toan incorrectl yins talled wind
scr een
If th ewind screen isno tcor rectly installed it
can com eloose during thejour neyand
endang erother road user s. #
Install thewind screen asdescr ibed. #
Donotplace objectson theins talled
wind screen. *
NO
TEThe wind screencan bedama ged
if ins talled when thesof tto pis closed The
vehicle interior orthewind screen can
be damag edifins talled when thesof tto p
clos ed. #
Toinstall, open thesof tto p. *
NO
TEDama getothewind screen due to
coll ision with seat backres ts The
wind screen maycollide withth efront
seat backres ts when installed. Open
ingand closing 79

Pr
oblems withthesof tto p Pr
oblem
Possible causes/conseq uencesand0050 0050
Solutions
The softto pwill notopen orclose. The
ignit ionisno tswitc hedon. #
Mak esur eth at theignition isswitc hedon.
The on-boar delectr icalsystem voltag eis toolow. #
Startth eengine.
The softto phas been opened andclosed severaltim esinarow .The softto pdr ive has been switchedoff
aut omatic allyand willbeavailable again afte rapp roxima tely tenminu tes. #
Repeat theopening orclosing procedur eaf te rapp roxima tely tenminu tes.
The trunk partition isno tclosed. #
Remo veoverhanging luggageand close thetrunk partition.
The trunk lidisopen. #
Close thetrunk lid(/ page74 ).
The softto pmec hanical componen tsor con trol system aredef ective. #
Visit aqu alif ied spec ialistwo rkshop.
Yo uar edr ivin gat aspee dgr ea terth an 37 mph(60 km/h). #
Reduce your spee dto belo w37 mph(60 km/h). 82
Opening andclosing

Side
windo ws Opening
andclosing theside windo ws &
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. #
When opening ,mak esur eth at nobody
is touc hin gth eside windo w. #
Ifsomeone istrappe d,release thebut‐
to nimm ediate ly or pullit in order to
clos eth eside windo wag ain. &
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. #
When closing,mak esur eth at no body
par tsarein theclosing area. #
Ifsomeon eis tra pped, release thebut‐
to nimm ediate ly or pres sth ebutt onin
or der toreopen theside windo w. &
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. #
Neverlea vechildr enunat tende din the
ve hicle. #
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. 1
Closes
2 Opens
The buttons onthedr iver's door take prece‐
denc e. #
Tostar taut omatic operation :pr ess the
0062 buttonbeyond thepoint ofresis tance
or pulland release it. Open
ingand closing 83

#
Tointerru pt aut omatic operation :pr ess or
pul lth e0062 buttonagain.
% 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. #
Swi tchon theignition . #
Toopen: press and hold button1 tothe
point ofresis tance. #
Toopen fully:pr ess and holdbu tton 1
be yond thepoint ofresis tance. #
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 . #
Dur ing theclosing process, makesur eth at
no body partsarein theclosing area. &
WARNIN GRisk ofbeco ming trap ped
des pite ther ebeing reve rsing protect ion
on theside windo w
The reve rsing func tion does notre act :
R Tosof t,light andthin obje cts, e.g. fing ers
R Dur ing rese ttin g
This means that there ve rsefunc tion cann ot
pr ev ent someon efrom becomin gtrapped in
th ese situation s. #
When closing, makesur eth at no body
par tsarein theclosing area. #
Ifsomeon ebecomes trapped, press the
0062 buttontoopen theside windo w
ag ain. 84
Opening andclosing

Pr
oblem
Possible causes/conseq uencesand0050 0050
Solutions #
Immediat elyaf te rth is, pull thecor responding buttonagain until theside windo whas closed, andhold
th ebutt onforat lea stone moresecond (re-adjus tment).
The side windo wisclosed without theaut omatic reve rsing func tion.
If th eside windo wisobs truct edagain and reopens again immediat ely: #
Immediat elyaf te rth is, pull thecor responding buttonagain until theside windo whas closed, andhold
th ebutt onforat lea stone moresecond (follo w-up adjustm ent).
The side windowisclos edwithout theaut omatic reve rsing func tion.
The side windo wscanno tbe ope ned or
clos edusing thecon venie nce openi ng
fe atur e. The
SmartK ey batt eryis disc hargedor near lydisc harged. #
Chec kth ebatt eryusing thebatt erych ecklam pand replace ifnec essar y(/ page66). 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.
% Intheeve nttheengine cannotbe star ted
(y et theve hicle ’sbatt eryis ch arge d), the
sy 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 Open
ingand closing 87

Seats
Ad
jus tingthe fron tse at mec hanicall yand
el ec tric all y(w ithou tSe at Co mf ortPa ckag e) &
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. #
When leaving theve hicle, alwaysta ke
th eSmar tKey wit hyo uand lockth e
ve hicle. #
Neverlea vechildr enunat tende din the
ve hicle. The
seats canbeadjus tedwhen theignition is
switc hedoff. &
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. #
When adjustingaseat, makesur eth at
no onehas anybody partsinthesw eep
of theseat. Obser
vethesaf etyno teson "Airbags" and"Chil‐
dr en intheve hicle". &
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. #
Alw aysmak esur eth at thedr iver's seat
is eng aged bef orest ar tin gth eve hicle. &
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 #
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. &
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. 90
Seats andstow ing