2021 MERCEDES-BENZ C-CLASS CABRIOLET Owner's Manual

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
00B3 En gine OilLevel Cannot Be
Measured *T
heelectr icalconn ection totheoil leve lsen sor has been interru pte dor theoil leve lsen sor isfaulty . #
Con sult aqu alif ied spec ialistwo rkshop. Wa
rning and indicat orlam ps Ov
ervie wof indicat orand warning lam ps Som
esy stems willperform aself -tes twhen the
ignit ionisswitc hedon.Som eindic ator and
wa rning lam psma ybr ief lylight uporflash. This
beha viorisno n-cr itical. Thes eind icat orand
wa rning lam psindic ateamalfun ction onlyif th ey
light uporflash afte rth eengine hasbeen star‐
te dor dur ing ajour ney. Ins
trum ent displa y(s tand ard) Wi
des cree nco ckpit instrumen tdispl ay Dep
endingonthedispla yse tting, theposition s
of theindicat orlam pson theins trument display
ma ydif ferfr om theex am ple shown. Dis
playmes sagesand warning/ indic ator lam ps 44
7

Indi
catorand warning lam ps:
0075 Re
stra int system (/ page44 9)
00E9 Seat
belt(/ page44 9)
Ù Powe rst eer ing (/ page450)
ÿ Coolanttemp eratur e(/ page45 1)
00B9 Chec
kEn gine (/page45 1)
003D Elect
rical mal functi on(/ page 451)
00B6 Re
ser vefuel withfuel filler flap loca‐
tio nind icat or(/ page45 1)
0049 US
A:elec tric par kingbr ak e(red)
(/ page45 4)
0024 Canada:
electric par kingbr ak e(red)
(/ page45 4)
0024 Ele
ctric pa rking brak e(yello w)
(/ page45 4)
00C6 US
A:Recup erati ve Brak eSy stem
(/ page45 4)
004D Canada:
brak es (yello w)
(/ page45 4)
0027 US
A:brak es (red) (/ page45 4)
004D Canada:
brak es (red) (/ page45 4) L
Distance warning (/ page45 7)
ä AIRMA TIC(/ page45 7)
ä DYNA MIC BODY CONTR OL
(/ page45 7)
0025 ABS
(/page458)
00E5 ESP®
(/ page458)
00BB ESP®
OFF (/page458)
0077 Ti
re pressur emonit oring system
(/ page460)
0060 Pa
rking lam ps(/ page10 8)
0058 Lo
wbe am (/ page10 8)
0057 Hi
gh beam (/ pag e10 9)
003E003D Tu
rn signal lights(/page10 9)
005E Re
ar foglam p(/ page10 8) 44
8
Dis play messa gesand warning/ indic ator lam ps

Occupant
safety Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
0075 Re stra int system warning
lam p *T
he redre stra int system warning lam pis lit while theengine isrunning .
The restra int system ismalfunct ioning(/page36). &
WARNIN GRisk ofinju rydue tomalfu nctions inthere stra int system
Com ponen tsinthere stra int system maybe activ ated unint entionally ornotdeplo yas planned inan acciden t. #
Have there stra int system checkedand repair edimmediat elyataqu alif ied spec ialistwo rkshop. #
Drive on car efully . #
Notethemessag eson themultifunc tiondispla y. #
Con sult aqu alif ied spec ialistwo rkshop immediat ely.
00E9
Sea tbel twa rning lam p *T
he redseat beltwarning lam pflashes andanintermit tent wa rning tone sou nds.
or
The redseat beltwarning lam plight sup forsix seconds oncetheengine hasstar ted.
In addition, anintermitt entwarning tone maysou nd.
The redse at beltwa rning lam pflashes andanintermit tent wa rning tone sounds:
The driver or front passeng erhas notfa stened hisorher seat beltwhile theve hicle isin mo tion. #
Fasten your seat belt(/page40 ).
Ther ear eobj ect son thefront passeng erseat. Displa
ymessag esand warning/ indic ator lam ps 44
9

Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions #
Remo vetheobjec tsfrom thefront passeng erseat.
The redse at beltwa rning lam plight sup once theengine hasstar ted:
In addition, anintermitt entwarning tone maysou nd.
The redseat beltwarning lam pre minds thedr iver and front passeng ertofasten their seat belts. #
Fasten your seat belt(/page40 ).
If yo uha ve placed objectson thefront passeng erseat, there dseat beltwarning lam pma yre main lit. Ve
hicl e Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
Ù Po we rst eer ing warning
lam p(red) *T
he redpo we rst eer ing system warning lam pis lit while theengine isrunning .
The powe rassi stanc eor thesteer ing itself ismalfunct ioning. &
WARNIN GRisk ofacci dent ifsteer ing capability isim pair ed
If th esteer ing does notfunc tion asintended, theve hicle's operating safetyis jeopar dized. #
Pull overand stop theve hicle safely assoon aspossible, paying attention toroad and traf fic condi tions.Do
no tcontinu edr ivi ng und eranycir cums tances. #
Consu ltaqu alif ied spec ialistwo rkshop. #
Notethemessag eson themultifunc tiondispla y. 450
Displa ymessag esand warning/ indic ator lam ps

Engine
Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
ÿ Coolant warning lam p *T
he redcoolant warning lam pis lit while theengine isrunning .
Po ssible causes:
R The temp eratur esensor ismalfunct ioning
R The coolant leve lis toolow
R The airsuppl yto thera diat orisobs truct ed
R The radiat orfanis faulty
R The coolan tpum pis faulty
If th er eis an additional warning tone, thecoolant temp eratur ehas exceeded themaximum permissible temp eratur e. &
WARNIN GRisk ofburnswhen opening thehood
If yo uopen thehood when theengine hasoverheat edorwhen ther eis afire intheengine compartmen t,th e
fo llo wing situat ionsmayocc ur:
R Youco uld come intoco ntact withho tga ses.
R Youco uld come intoco ntact withot her hot,escaping operating fluids. #
Beforeopen ingthehood, allowtheove rheat edengine tocool down. #
Intheeve ntofafire intheengine compartmen t,ke ep thehood closed andcallthefire ser vice. Displa
ymessag esand warning/ indic ator lam ps 45
1

Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions #
Stop theve hicle immediat elyinaccor dance withth etraf fic condi tions andswitchof fth eengine. Donotcon tinue
dr iving under anycir cums tances. #
Notethemessag eson themultifunc tiondispla y.
If th ecoolant temp eratur edispla yis at thelowe rend ofthete mp eratur escale: #
Consult aqu alif ied spec ialistwo rkshop.
If th ecoolant temp eratur edispla yis at theupper endofthete mp eratur escale: #
Exitth eve hicle andkeep asaf edis tance from itunti lth eengine hascooled down. #
Chec kth ecoolant leve l(/ page322) . #
Mak esur eth at theair supply tothera diat orisno tobs truct ed. #
Avoiding highloads ontheengine, drive to thenear estqu alif ied spec ialistwo rkshop. Indoing so,ensur eth at the
cool anttemp eratur edispla yre mains belowthere dar ea.
00B9 En gine diagnosis warning
lam p *T
he yello wChec kEn gine warning lam pis lit while theengine isrunning .
A ma lfunctio nha soccu rred intheengine, theex haus tsy stem orthefuel system.
The emission limitvalues maybe exc eeded andtheengine maybe inemer gency mod e.
In som est at es, legalrequ iremen tsstipulat eth at youmus timm ediat elyco nsult aqu alif ied spec ialistwo rkshop as
soon astheye llo wChec kEn gine warning lam plight sup. #
Have theve hicle checkedas soon aspossible ataqu alif ied spec ialistwo rkshop. 452
Displa ymessag esand warning/ indic ator lam ps

Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
003D Elect rical mal functi onwarn‐
ing lam p *T
heredelect rical fault warning lam pis lit.
Ther eis afa ult intheelectr ics. #
Notethemessag eson themultifunc tiondispla y.
00B6
Fu elreser vewarning lam p *T
he yello wfuel reser vewarning lam plight sup while youar edr ivin g.
or
The yello wfuel reser vewarning lam plight sup while theengine isrunning .
The yello wfuel reser vewarning lam plight sup while youar edr ivin g:
Ther ehas been pressu reloss inthefuel system. Thefuel filler cap isno tclos edcor rectl yor thefuel system isleak‐
ing. #
Close thefuel filler cap.
If th efuel filler cap hasalready been closedcor rectl y: #
Consul ta qu alif ied spec ialistwo rkshop.
The yello wfuel reser vewarning lam plight sup while theengine isrunning:
The fuel suppl yhas dropped intoth ere ser verang e. #
Refuel . Displ
aymessa gesand warning/ indic ator lam ps 453

Br
ak es Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
0049 Elect ric pa rking brak eindi‐
cat orlam p(red) (USAonl y)
0024
Elec tric par kingbr ak eindi‐
cat orlam p(red) (Canada
onl y)
0024 The elect ric pa rking brak e
(y ello w)indic ator lam p *T
he redelect ric pa rking brak eindic ator lam pflashes orislit.
The yello welect ric pa rking brak eindic ator lam palso lightsup intheeve ntofama lfunctio n. #
Notethemessag eson themultifunc tiondispla y. 45
4
Displa ymessag esand warning/ indic ator lam ps