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

Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
00C6 Re cup erati ve Brak eSy stem
wa rning lam p(US Aonl y)
004D
Brak eswarning lam p(yel‐
lo w) (Canada only) *
The yello w00C6 warning lam p(US Aonl y)or theye llo w004D brak es warning lam p(Canada only)islit while the
engine isrunning . &
WARNIN GRisk ofan acci dent dueto abr ak esy stem malfunct ion
If th ebr ak esy stem ismalfunct ioning,braking charact eristic sma ybe impair ed. #
Drive on car efull y. #
Have thebr ak esy stem checkedimmediat elyat aqu alif ied spec ialistwo rkshop. #
Adjus tyo ur spee dand drive on car efull y,lea vingasuit able distance totheve hicle infront. #
Ifth emultifunc tiondispla ysho wsadispla ymes sage,obse rveit. #
Consult aqu alif ied spec ialistwo rkshop. Displa
ymessag esand warning/ indic ator lam ps 455

Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
0027 Br ak ewa rning lam p(US A
onl y)
004D Br ak esy stem warning lam p
(Canada only) *T
he redbr ak esy stem warning lam pis lit while theengine isrunning .
Po ssible causes:
R The brak efo rc eboos tingismalfunct ioningandthebr aking charact eristic sma ybe affect ed.
R The reisinsuf ficie ntbrak efluid inthebr ak efluid reser voir. #
Notethemessag eson themultifunc tiondispla y. &
WARNIN GRisk ofacci dent andinjuryifbr ak efo rc eboos tingismalfunct ioning
If br ak efo rc eboos tingismalfunct ioning,increased brak epedal forc ema ybe neces saryfo rbr aking. Thebraking
ch aract eristic sma ybe impair ed.The brakin gdis tance canincrease ineme rgency braki ng situa tions. #
Stop inasaf elocation immediat ely.Do notcont inue driving. #
Consult aqu alif ied spec ialistwo rkshop. &
WARNIN GRisk ofan acci dent dueto low brak efluid leve l
If th ebr ak efluid leve lis toolow, thebr aking effect and thebr aking charact eristic sma ybe impair ed. #
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. #
Donotadd brak efluid. 456
Displaymes sagesand warning/ indic ator lam ps

Dr
ivin gsy stems Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
L Wa rning lam pfo rdis tance
wa rning func tion *T
he reddis tan cewarning lam plight sup while theve hicle isin mo tion.
The distance totheve hicle infront istoosmall forth espeed selected.
If th er eis an additional warning tone, youar eappr oachingan obs tacle attoohigh aspeed. #
Beprepar edtobrak eimmediat ely. #
Incr ease thedis tance.
Fu nctio nof ActiveBr ak eAssi st(/ pag e17 0).
ä
Suspe nsionwarning lam p
(y ello w) *T
he yello wAIRMA TICwarning lam pis lit.
The yello wDY NA MIC BODY CONTR OLwarning lam pis lit.
A malfun ction has occurredin AIRMA TIC.
A malfunc tionhasoccurredin theDY NA MIC BODY CONTR OL. #
Notethemessag eson themultifunc tiondispla y. Dis
play messa gesand warning/ indic ator lam ps 45
7

Dr
ivin gsaf etysy stems Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
0025 ABS warning lam p *T
he yello wAB Swa rning lam pis lit while theengine isrunning .
ABS isma lfunctio ning.
If th er eis an additional warning tone, EBD isma lfunctio ning.
Ot her drivi ng systems anddriving safetysy stems mayalso bemalfunct ioning. #
Notethemessag eson themultifunc tiondispla y. &
WARNIN GThe reisarisk ofskidding ifEBD orABS ismalfunctioning
The wheels mayloc kdur ing braking.
The steer ability andbraking charact eristic sar ehea vilyim pair edand thebr aking distan cema yincr ease. Inaddi‐
tion, other driving safetysy stems areswitc hedoff. #
Drive on car efull y. #
Have thebr ak esy stem checkedimmediat elyat aqu alif ied spec ialistwo rkshop. 00E5
ESP ®
wa rning lam p *
The yello wES P®
wa rning lam pflashes whiletheve hicle isin mo tion.
or
The yello wES P®
wa rning lam pis lit while theengine isrunning .
The yello wESP ®
wa rning lam pflashes whiletheve hicl eis in mo tion:
One ormor ewhee lshas reac hed itsgrip limit (/page15 2). 45
8
Dis play messa gesand warning/ indic ator lam ps

Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions #
Adaptyo ur drivin gst yle to suit thero ad and weather condition s.
Th eye llo wESP warning lam p®
islit while theengine isrunning.
ES P®
is malfunct ioning.
Ot her driving systems anddriving safetysy stems (e.g. BAS)ma yal so be mal functi oning. #
Notethemessag eson themultifunc tiondispla y. &
WARNIN GRisk ofskid ding ifESP ®
is mal functi oning
If ESP ®
is mal functi oning,ESP ®
canno tcar ryout vehicle stabiliz ation.Inaddit ion,ot her driving safetysy stems
ar eswitc hedoff. #
Drive on car efull y. #
Have ESP ®
ch eckedat aqu alif ied spec ialistwo rkshop. 00BB
ESP ®
OFF warning lam p *
The yello wES P®
OFF warning lam pis lit while theengine isrunning .
ESP ®
is de acti vated.
Ot her driving systems anddriving safetysy stems mayalso beinoper ative. &
WARNIN GRisk ofskid ding whe ndr ivi ng with ESP ®
de acti vated
ESP ®
do es notact tostabiliz eth eve hicle. Theavailabilit yof fur ther driving safetysy stems isalso limited. #
Drive on car efull y. Dis
play messa gesand warning/ indic ator lam ps 459

Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions #
Deact ivat eESP ®
onl yfo ras long asthesituation requ ires.
If ES P®
can notbe act ivat ed, ESP®
is malfun ctionin g. #
Have ESP ®
ch eckedimmediat elyat aqu alif ied spec ialistwo rkshop. #
Obser vetheno teson deactiv atingESP®
(/ page15 2). Ti
re pres sur emoni tor Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
0077 Ti re pressur emonit oring
sy stem warning lam p *The
yello wtirepr essur emon itor wa rning lam p(pr essur eloss/ malfun ction) flashes forapp roxima tely one minu te and
th en remains lit.
or
The yello wtirepr essur emon itor ing system warning lam p(pr essur eloss/ malfun ction) islit.
Th eye llo wtirepr essur emonit orwa rning lam p(pr essur eloss/ma lfunction)flashes forappr oxima tely one
min uteand then remain slit:
The tirepr es su re monit orismalfu nctioning. &
WARNIN GThe reisarisk ofan accident ifth etir epr essur emonit oring system ismalfunct ioning
The tirepr essur emonit oring system cann otissue awa rning ifth er eis pressur eloss inone ormor eof thetir es. 460
Displa ymessag esand warning/ indic ator lam ps

Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
Ti re swit hinsuf ficie nttirepr ess urema yim pa irth edr iving charact eristic sas wellas steer ing and braking. #
Have thetir epr essur emonit oring system checkedat aqu alif ied spec ialistwo rkshop. The
yello wtirepr essur emonit oring system warning lam p(pr essur eloss/ma lfunction)islit:
The tirepr essur emon itor ing system has detected tirepr ess urelos sin at leas tone ofthetir es. &
WARNIN GRisk ofan acci dent dueto insuf ficie nttirepr ess ure
R The tires can burst.
R The tires can wearexc essiv elyand/or unevenly.
R The driving charact eristic sas wellas thesteer ing and braking maybe greatl yim pair ed.
Yo uco uld then lose control of theve hicle. #
Obser vethere comme ndedtirepr ess ures. #
Adjus tth etir epr essur eif neces sary. #
Stop theve hicle inaccor dance withth etra ffic con dition s. #
Chec kth etir epr essur eand thetir es. Displa
ymessag esand warning/ indic ator lam ps 46
1

1,
2, 3...
4MA TIC
Fu nctio n...<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011>140
12 Vbatt ery
see Battery(v ehi cle)
12 Vso cket
see Socket(1 2 V)
36 0° Camer a
Fu nctio n...<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011>187
Opening thecamer aco ver(r ear view
camer a).......... ........... ............................ 189
Sel ecting avie <005A001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 189
Se tting favo rite s.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 189 A
A/C funct ion
Swit ching on/ off(con trol panel).... ........ 121
ABS (Anti-lockBr ak ing System) ...............1 52
Ac celer ation
see Kickdo wn
Ac ciden tand Break down Manag e‐
men t
Mer cedesme connect........................... 287 Ac
ous ticlocking verificat ion signa l
Ac tivati ng/d eactiv ating........... ................64
Ac tiv atin g/deac tivatin gaut omati c
vo lum eadj ustm ent
Bur mes ter®
sur round soun dsy stem.. ....3 14
Ac tiv eBli nd Spo tAs sist
Br ak eap plica <0057004C00520051001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> ..178
Fu nctio n...<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011>177
Sy stem limit ations. ........................... ..... 177
Ac tiv eBr ak eAs sist
Fu nctio n/no tes.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 170
Se tting <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 174
Ac tiv eDi stance AssistDI ST RO NIC
Ac tiveEmerg encyStop Assis t............... 168
Ac tiveLa ne Chang eAssi st<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 169
Callin gup aspee d.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 162
Fu nctio n...<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011>159
Incr easi ng/decr easingspeed ............. ... 162
Re quiremen ts.................................. ...... 162
Ro ute-based speedadap tatio n.............. 164
St eer ing wheel buttons... .................. ..... 162
St or ing aspeed. .................................... 162
Swi tching off/de activating ........... ......... 162
Swi tching on/a ctivating<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 162 Sy
stem limit ations. ................................ 159
Ac tiv eEme rgency Stop Assis t.. ...............1 68
Ac tiv eLan eCha ngeAs sist
Ac tivati ng/d eactiv ating........... ..............170
Fu nctio n...<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011>169
Ac tiv eLan eKe eping Assist
Ac tivati ng/d eactiv ating........... ..............181
Ac tivati ng/d eactiv ating thewa rning.... .182
Fu nctio n...<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011>179
Sy stem limits. ........................................1 79
Ac tiv ePa rking Assis t
Ex itin gapar kingspace.. ........................ 196
Fu nctio n...<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011>193
Pa rking. .................................................1 95
Sy stem limit ations. ................................ 193
Ac tiv eSe rvice System PLUS
see ASSYST PLUS
Ac tiv eSpe edLimit Assist
Dis play <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 163
Fu nctio n...<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011>163
Ac tiv eSt eer ing Assis t
Ac tivati ng/d eactiv ating........... ..............167
Ac tiveEmerg encyStop Assis t............... 168 462
Index