engine MERCEDES-BENZ C-CLASS CABRIOLET 2019 Owners Manual

Saf
etysy stems Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
0027 Br ak ewa rning lam p(US A)
004D Brak eswarning lam p(Can‐
ada) The
redbr ak esy stem warning lam pis lit while theengine isrunning .
Po ssible causes are:
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. 000A
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 braking situation s. 0007
Stop inasaf elocation immediat ely.Do notcont inue driving. 0007
Consult aqu alif ied spec ialistwo rkshop. 000A
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. 0007
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. 0007
Consu ltaqu alif ied spec ialistwo rkshop. 0007
Donotadd brak efluid. Dis
playmes sagesand warning/ indic ator lam ps 47
1

Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions 0007
Pull overand stop theve hicle safely assoon aspossible, paying attention toroad and traf fic condi tions.Do not
continu edr ivi ng und eranycir cums tances. 0007
Obs erve themessag eson themultifunc tiondispla y. 0007
Con sult aqu alif ied spec ialistwo rkshop.
0025 ABS warning lam p The
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 malfunct ion. 000A
WARNIN GThe reisrisk ofskidding ifEBD orABS ismalfunctioning
If EBD orABS ismalfunctioning, thewheels couldlockwhen braking
The steer ing capability andbraking charact eristic sar eth us severely im pair ed.The brakin gdis tance inan eme r‐
ge ncy braki ng situa tioncan increase. Inadditio n,other driving safetysy stems areswitc hedoff. 0007
Drive on car efull y. 0007
Have thebr ak esy stem checkedimmediat elyat aqu alif ied spec ialistwo rkshop. 0007
Drive on car efully . 0007
Obser vethemessag eson themultifunc tiondispla y. 0007
Visit aqu alif ied spec ialistwo rkshop. 47
2
Display messa gesand warning/ indic ator lam ps

Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
ESP ®
wa rning lam pflashes
00E5
ES P®
wa rning lam plight s
up The
yello wES P®
wa rning lam pis lit while theengine isrunning .
ESP ®
is mal func tioning
Ot her drivi ng systems anddriving safetysy stems mayalso malfunct ion. 000A
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 are
switc hedoff. 0007
Drive on car efull y. 0007
Have ESP ®
ch eckedat aqu alif ied spec ialistwo rkshop. 0007
Drive on car efully . 0007
Obser vethemessag eson themultifunc tiondispla y. 0007
Visit 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. 47
4
Display messa gesand warning/ indic ator lam ps

Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions 000A
WARNIN GRisk ofskid ding whe ndr ivi ng with ESP ®
de acti vated
If ESP ®
is deactiv ated, ESP ®
canno tcar ryout vehicle stabiliz ation.The availabilit yof fur ther driving safetysy stems
is also limited. 0007
Drive on car efull y. 0007
Onlydeactiv ateESP ®
foras long asthesituation requ ires.
If ES P®
can notbe act ivat ed, ESP®
is malfun ctionin g. 0007
Have ESP ®
ch eckedimmediat elyat aqu alif ied spec ialistwo rkshop. 0007
Obser vetheno teson deactiv atingESP®
(0013 page15 8).
0075 Re stra int system warning
lam p The
redre stra int system warning lam pis lit while theengine isrunning .
The restra int system isfaulty (0013 page34 ). 000A
WARNIN GRisk ofinju ryor fata linj urydue toamalf unctionin there stra int system
If th ere stra int system ismalfunct ioning,restra int system com ponen tsma ybe trigg ered unint entionall yor might not
be trigg ered atall intheeve ntofan acci dent. Thisma yaf fect theEmer gency Tensi oni ng Device orairba g,forex am‐
ple. 0007
Have there stra int system checkedand repair edimmediat elyataqu alif ied spec ialistwo rkshop. 0007
Drive on car efully . Displa
ymessag esand warning/ indic ator lam ps 47
5

Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions 0007
Obser vethemessag eson themultifunc tiondispla y. 0007
Visit aqu alif ied spec ialistwo rkshop immediat ely. Seat
belts Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
0076 Seat beltwarning lam p
light sup The
redseat beltwarning lam pwill light upforsix seconds oncetheengine hasstar ted.
In addition, awa rning tone maysou nd.
The seatbe ltwa rning lam pre minds thedr iver and front passeng ertofasten their seat belts. 0007
Fasten your seat belt(0013 page39 ).
If yo uha ve placed objectson thefront passeng erseat, theseat beltwarning lam pma yre main lit.
0076 Seat beltwarning lam p
fl ashes The
redseat beltwarning lam pflashes andanintermit tent wa rning tone sou nds.
The driver or front passe nger hasno tfa stened their seat beltwhile theve hicle isin mo tion. 0007
Fasten your seat belt(0013 page39 ).
Ther ear eobj ect son thefront passeng erseat. 0007
Remo vetheobjec tsfrom thefront passeng erseat. 47
6
Display messa gesand warning/ indic ator lam ps

Engine
Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
00B9 En gine diagnosis warning
lam p The
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 exceed edand theengine 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 assoon
as theye llo wChec kEn gine warning lam plight sup. 0007
Have theve hicle checkedas soon aspossible ataqu alif ied spec ialistwo rkshop.
003D Electr icalmalfunction warn‐
ing lam p The
redelect rical mal functi onwarning lam pis lit.
Ther eis amalfun ction intheelectr ics. 0007
Obser vethemessag eson themultifunc tiondispla y.
00B6
Fu elreser vewarning lam p The
yello wfuel reser vewarning lam plight sup while drivin g.
Ther ehas been pressur eloss inthefuel system. Thefuel filler cap isno tclos edcor rectly orthefuel system isleaking. 0007
Close thefuel filler cap.
If th efuel filler cap hasalready been closedcor rectl y: 0007
Visit aqu alif ied spec ialistwo rkshop. 47
8
Display messa gesand warning/ indic ator lam ps

Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
00B6 Fu elreser vewarning lam p The
yello wfuel reser vewarning lam pis lit while theengine isrunning .
The fuelsu pp lyha sdr op pedint oth ere ser verang e. 0007
Refuel .
00AC
Coo lant warning lam p The
redcoolant warning lam pis lit while theengine isrunning .
Po ssible causes are:
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
If th er eis an additional warning tone, thecoolant temp eratur ehas exceed edthemaximum permissible temp eratur e. 000A
WARNIN GDang erofburnswhen opening thehood
If yo uopen thehood when theengine hasoverheat edordur ing afire intheengine compartmen t,yo uco uld come
int oco ntact withho tga ses orother escaping operating fluids. 0007
Beforeopen ingthehood, allowtheengine tocool down. 0007
Intheeve ntofafire intheengine compartmen t,ke ep thehood closed andcallthefire ser vice. Displa
ymessag esand warning/ indic ator lam ps 47
9

Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions 0007
Pull overand stop theve hicle safely and switc hof fth eengine, paying attent ion toroad and traffic condi tions.Do
no tcontinu edr ivi ng und eranycir cums tances. 0007
Obs erve themessag eson themultifunc tiondispla y.
If th ecoolant temp eratur edispla yis at thelowe rend ofthete mp eratur escale: 0007
Consult aqu alif ied spec ialistwo rkshop.
or 0007
Exit theve hicle andkeep asaf edis tance from itunti lth eengine hascooled down. 0007
Chec kth ecoolant leve l(0013 page343) . 0007
Mak esur eth at theair supply tothera diat orisno tobs truct ed. 0007
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. Ti
re s Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
0077 The
yello wtirepr essur emon itor ing system warning lam p(pr essur eloss/ malfun ction) islit.
The tirepr essur emon itor ing system has detected tirepr ess urelos sin at leas tone ofthetir es. 480
Displa ymessag esand warning/ indic ator lam ps

Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions 0007
Have thetir epr essur emonit oring system checkedat aqu alif ied spec ialistwo rkshop. 0007
Visit aqu alif ied spec ialistwo rkshop. Ve
hicl e Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
00CC Po we rst eer ing system
wa rning lam p The
redpo we rst eer ing system warning lam pis lit while theengine isrunning .
The powe r-assis tedsteer ing orthesteer ing itself ismalfunct ioning. 000A
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. 0007
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. 0007
Consu ltaqu alif ied spec ialistwo rkshop. 0007
Obser vethemessag eson themultifunc tiondispla y. 482
Displa ymessag esand warning/ indic ator lam ps

Ac
tiv eSe rvice System PLUS
see ASSYST PLUS
Ac tiv eSpe edLimit Assist <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 173
Dis play <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 173
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011>173
Ac tiv eSte ering Assis t.............................1 75
Ac tivati ng/d eactiv ating ........... ............177
Ac tiveEmerg encyStop Assis t.............1 79
Ac tiveLa ne Chang eAssi st<0011001100110011001100110011001100110011001100110011001100110011
001100110011> 177
Dis play sin theIns trument Display...... 179
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011>175
Sy stem limit ations ........................... ....1 75
Ad aptiv ecr uise contr ol
see ActiveDis tance AssistDIS TRONI C
Ad aptiv eHighb eamAssist
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011>115
Swi tching on/of f<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011> 116
Ad diti onalvalue rang e
Se tting displa ycont ent ........................ 216
Ad diti ves................................................... 415
Engi neoil............ ................................. 415
Fu el ...... ................................................ 415 Ad
diti ves(engine oil)
see Additiv es
Ad diti ves(fuel)
see Fuel
Ad dres sbo ok
see Contacts
Ad jus tingthe balanc e/fader
Bur mes ter®
sur round soun dsy stem ...336
Ad jus tingthe sound focus
Bur mes ter®
sur round soun dsy stem ...336
Ad jus tingtreb le,mid- rang eand bass
se ttings
Bur mes ter®
sur round soun dsy stem ...336
ADS PLUS dam ping system
see AIRMA TIC
Af ter-sales service center
see ASSYSTPL US
Air bag
Re duced protect ion ...............................4 2
Air cond itioning system
see Climat econ trol Air
distribut ion
Se tting .................................................1 24
Air inle t
see Air-water duct
Air pressu re
see Tire pressur e
Air suspension
see AIRMA TIC
Air vents ................................................... 126
Ad jus ting (front) ............ ...................... 126
Ad jus ting (rea r) ............ ........................ 126
Ad jus ting theAIRSC ARFvents ............. 127
Air vents
see Airvents
Ai r-re cir cula tion mode............................ 125
Air -water duct .......................................... 344
Ke eping free ........................................3 44
Airb ag.........................................................4 0
Ac tivati on ........... ...................................34
Fr ont airbag ...........................................4 0
Hea dairba g............ ...............................40
Ins tallation locations .............................4 0
Knee airbag........................................... 40 48
4
Inde x