engine MERCEDES-BENZ C-CLASS CABRIOLET 2020 Owners Manual

Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
0075 Re stra int system warning
lam p The
redre stra int system warning lam pis lit while theengine isrunning .
*Th ere stra int system ismalfunct ioning(/page35). &
WARNIN GRisk ofinju rydue tomalfu nctions inthere stra int system
If th ere stra int system ismalfunct ioning,restra int system com ponen tsma ybe trigg ered unint entionall yor ma y
no tdeplo yas intended during anacciden t.This mayaf fect theEmer gency Tensi oni ng Device sor airba gs, for
ex am ple. #
Have there stra int system checkedand repair edimmediat elyataqu alif ied spec ialistwo rkshop. #
Drive on car efully . #
Notethemessag eson themultifunc tiondispla y. #
Visit aqu alif ied spec ialistwo rkshop immediat ely. Dis
play messa gesand warning/ indic ator lam ps 49
1

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.
*T he seat 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, 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.
*T he driver or front passeng erhas notfa stened their seat beltwhile theve hicle isin mo tion. #
Fasten your seat belt(/ page40 ).
*T her ear eobject son thefront passeng erseat. #
Remo vetheobjec tsfrom thefront passeng erseat. 492
Displa ymessag esand 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 malfunctio 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 as
soon astheye llo wChec kEn gine warning lam plight sup. #
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.
*T her eis amalfunction intheelectr ics. #
Obser vethemessag eson themultifunc tiondispla y.
00B6
Fu elreser vewarning lam p The
yello wfuel reser vewarning lam pis lit while theengine isrunning .
*T he fuel supply hasdropped intoth ere ser verang e. #
Refuel . 49
4
Displ aymessa 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 plight sup while drivin g.
*Ther ehas been pressur eloss inthefuel system. Thefuel filler cap isno tclos edcor rectly orthefuel system isleak‐
ing. #
Close thefuel filler cap.
If th efuel filler cap hasalready been closedcor rectl y: #
Visit aqu alif ied spec ialistwo rkshop.
00AC Coola ntwa rning lam p The
redcoolant warning lam pis lit while theengine isrunning .
*P oss ible cau ses are:
R The temp eratur esensor ismalfunct ioning
R The coolant leve lis toolow
R The airsupply tothera diat orisobs truct ed
R The radiat orfanis faulty
If th er eis an additional warning tone, thecoolant temp eratur ehas exceeded themaximum permissible temp eratur e. &
WARNIN GDang erofburnswhen opening thehood
If yo uopen thehood when theengine hasoverheat edordur ing afire intheengine compartmen t,yo uco uld
co me intoco ntact withho tga ses orother escaping operating fluids. #
Beforeopen ingthehood, allowtheengine tocool down. Disp
lay mess ages and warning/ indic ator lam ps 495

Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions #
Intheeve ntofafire intheengine compartmen t,ke ep thehood closed andcallthefire ser vice. #
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. #
Obs erve themessag 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.
or #
Exit theve hicle andkeep asaf edis tance from itunti lth eengine hascooled down. #
Chec kth ecoolant leve l(/ page353) . #
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. 496
Displa ymessag esand warning/ indic ator lam ps

Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
0077 Ti re pressur emonit oring
sy stem warning lam p
fl ashes The
yello wtirepr essur emon itor ing system warning lam p(pr essur eloss/ malfun ction) flashes forapp roxima tely one
minut eand then remains lit.
*The tirepr essu remonit oring system isdef ective. &
WARNIN GThe reisarisk ofan accident ifth etir epr essur emonit oring system ismalfunct ioning
If th etir epr essur emonit oring system ismalfunct ioning,itis no table toissue awa rning ifth er eis pressur eloss
in one ormor eof thetir es.
Un der inflated tires ma y,forex am ple, impair thedr iving, steer ing and braking charact eristic s. #
Have thetir epr essur emonit oring system checkedat aqu alif ied spec ialistwo rkshop. #
Visit aqu alif ied spec ialistwo rkshop. Ve
hicl e Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
Ù Wa rning lam pfo relectr ic
po we rst eer ing The
redelect ric po we rst eer ing warning lam pis lit while theengine isrunning .
*Th epo we r-assis tedsteer ing orthesteer 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. 498
Displa ymes sagesand warning/ indic ator lam ps

Sy
stem limit ations ...............................2 02
Ac tiv eSe rvice System PLUS
see ASSYST PLUS
Ac tiv eSpe edLimit Assist <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 178
Dis play <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011> 178
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011>178
Ac tiv eSte ering Assis t.............................1 80
Ac tivati ng/d eactiv ating ........... ............182
Ac tiveEmerg encyStop Assis t.............1 84
Ac tiveLa ne Chang eAssi st<0011001100110011001100110011001100110011001100110011001100110011
00110011> 182
Dis play sin theIns trument Display...... 185
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>180
Sy stem limit ations ...............................1 80
Ad aptiv ecr uise contr ol
see ActiveDis tance AssistDIS TRONI C
Ad aptiv eHighb eamAssist
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011>117
Swi tching on/of f<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011> 118
Ad diti onalvalue rang e
Se tting displa ycont ent ........................ 223
Ad diti ves.................................................. 426
En gine oil............................................ 426
Fu el ..................................................... 426 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
Ad vanced soundsystem ......................3 46
Bur mes ter®
sur round soun dsy stem ...345
Ad jus tingthe sound focus
Bur mes ter®
sur round soun dsy stem ...345
Ad jus tingtreb le,mid- rang eand bass
se ttings
Ad vanced soundsystem ......................3 45
Bur mes ter®
sur round soun dsy stem ...345
ADS PLUS dam ping system
see AIRMA TIC
Ad vanced sound system
Ac tivati ng/d eactiv ating automatic
vo lume adjustment .............................. 346
Ad jus ting thebalance/f ader............ ... 346
Ad jus ting treb le,mid -rang eand bass
se tting s............. ..................................345 Ca
lling upthesound menu .................. 345
Inf ormation .......................................... 345
Af ter-sales service center
see ASSYSTPL US
Air bag
Re duced protect ion ...............................4 4
Air cond itioning system
see Climat econ trol
Air distribut ion
Se tting .................................................1 27
Air inle t
see Air-water duct
Air pressu re
see Tire pressur e
Air suspension
see AIRMA TIC
Air vents ................................................... 129
Ad jus ting (front) ............ ...................... 129
Ad jus ting (rea r) ............ ........................ 129
Ad jus ting theAIRSC ARFvents ............. 130
Air vents
see Airvents
Ai r-re cir cula tion mode............................ 128 Inde
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Assis
tance systems
see Drivin gsaf etysy stem
ASS YSTPL US <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011>347
Batt erydi sconne ctionpe riods .............3 48
Displ aying theser vice duedate........... 347
Fu nctio n/no tes ................................... 347
Re gular maint enance work <0011001100110011001100110011001100110011001100110011001100110011
00110011> 347
Spec ialser vice requ iremen ts.............. 347
ATA (anti-thef tala rm system) ...................8 7
Dea ctivating thealar m.......................... 88
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 87
AT TENTI ONASSIST <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> 208,209
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>208
Se tting <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 209
Sy stem limit ations ...............................2 08
At tention assistant
see ATTENTION ASSIST
Au dio mode
Ac tivati ng med iamod e........... .............327
Co nnecti ngUSB devic es ........... .......... 328
Co pyrights ...........................................3 27
Inf ormation ........ ............................. .....3 25
Inser ting/r emoving anSD card....... ....327
Medi asea rch ................................. ...... 332 Ov
ervie w .......................................... ... 328
Pa use and playbac kfun ction ...............3 29
Selecti ngatrac k ....... .......................... 329
Selecti ngplayba ckoptions ............ ...... 329
Tr ac klis t.............................................. 329
Au thorized Mercedes- BenzCenter
see Qualif iedspec ialistwo rkshop
Au thorized workshop
see Qualif iedspecialis two rkshop
Au tomatic distanc eco ntr ol
se eAc tiveDis tance AssistDIS TRONI C
Au tomatic drivin glights ........... ............ ...115
Au tomatic engine star t(E CO star t/
sto pfunc tion) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> .......139
Au tomatic engine sto p(E CO star t/
sto pfunc tion) <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> .......139
Au tomatic fron tpass engerfr on tair‐
bag shutoff <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> 45,46
Fu nctio nof theaut omatic front
passeng erfront airbag shutoff......... ..... 45
PA SSENGER AIRBAGind icat orlam p.....4 6 Au
tomatic fron tpass engerfr on tair‐
bag shutoff
see Automatic front pass engerfront
airb agshut off
Au tomatic mirrorfo lding function
Ac tivati ng/d eactiv ating ........... ............125
Au tomatic trans mis sion
DIR ECT SELEC Tleve r..... ......................145
Dr ive pr ogr am disp lay ............ ..............144
Dr ive pr ogr ams............ ........................ 143
DY NA MIC SELE CTswitc h.................... 143
Eng aging drive po sitio n............ ........... 146
Eng aging neu tral ............ ...................... 146
Eng aging park position ........................ 146
Eng aging reve rsege ar .........................1 46
Kic kdo wn ....... ......................................148
Manual gearshif ting.............................1 47
St eer ing wheel paddle shifters ............ 147
Tr ans miss ionposit iondispla y.............. 145
Tr ans miss ionposit ions........................ 145
Au tomatic trans mis sion (problem)
se eTr ans miss ion(problem ) In
de x 503

Com
puter
see On-boar dcom puter
Conne ctingthepa rcel ne t...................... 106
Connect ionstatus
Displ aying ............................................ 321
Ov ervie w ........ ................................ ...... 321
Connectivit y
Swit ching transm ission oftheve hicle
position on/off.............................. ...... 259
Cont acts ............ ....................................... 304
Call ingup ....................................... ..... 305
Dele ting ............................................... 306
Do wnloading (from mobile phone) ...... 304
Im por ting ............................................ 305
Im por ting (ove rview) ...................... .....3 05
Inf ormatio n....... ................................... 304
Maki ngacall ....................................... 306
Na me form at .......................................3 05
Op tions .............. ............................ ...... 306
St or ing ................................................ 306
Contr oller
Oper ating ...... ...................................... 250
Con venience closing featur e....... ............. 85 Co
nvenience opening................................ 85
Coolant (engine)
Chec kleve l.......................................... 353
Fillin gcapac ity.................................... 429
No tes .................................................. 428
Cool ing
see Clima tecontr ol
Co pyright
Tr ademar ks<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> 32
Co pyrights
Licen se.................................................. 32
Cor nering light funct ion.......................... 117
Cr oss Traf fic Aler t...................................2 07
Cr osswind Assist
Fu nctio n/no tes ................................... 166
Cr uise contr ol.......................................... 172
Butt ons <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011>........173
Callin gup aspee d...............................1 73
Fu nctio n<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>172
Re quiremen ts:.....................................1 73
Sel ecting <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011001100110011> 173
Se tting aspe ed <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 173
St or ing aspeed .............................. ...... 173 Swi
tching off<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 173
Swi tching on<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 173
Sy stem limit ations ...............................1 72
Cup holder
Re ar ben chseat ..................................1 08
Cup holde rin thecent erconsole
In stallin g/remo ving(aut omat ic
transm ission).......................................1 07
Cus tomer Assist ance Center (CAC ).........2 8
Cus tomer Relat ions Depar tment .............2 8 D
Dash board
see Cockpit
Dashboar dlighting
see Instrument clusterlig hting
Dat aacq uisiti on
Ve hicle .................................................. 29
Data impor t/expor t................................ 263
Fu nctio n/no tes ................................... 263
Im por ting/e xporting ........................... 264
Data storage
Ele ctroni ccontr oluni ts ............ .............29 Inde
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003D
48VBatt erySee Oper ator's
Manu al....... ......................................... 462
0049 ActiveHea dlamps Inoperati ve .... 483
é ATTENTION ASSISTInoper ative
... ..........................................................4 49
é ATTENTION ASSIST: Take a
Br ea k! <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>........449
0049 Automatic HeadlampMode
Inoper ative..... ..................................... 482
0027 CheckBr ak eFlui dLe vel.............4 43
00BD CheckCoolan tLe velSee Oper‐
at or's Manual ...................................... 459
00B3 CheckEn gine OilAtNe xtRe fu‐
eli ng ...... .............................................. 464
00B3 CheckEngi neOilLe vel(A dd 1
qu art) .................................................. 464
0049 CheckLef tLo wBeam (Exam‐
ple) ...................................................... 482
0077 CheckTire s ................................ 472
00B2 CheckWa sher Fluid .................... 479 0059
Convertible TopLo we ring ........... 480
0059 Convertible TopOper ation Pos‐
sible to37 mph................................... 480
00AC Coolant TooHo tSt op Vehicle
Tu rn Engi neOff............ ............. ........... 459
0025 Current lyUn available See
Operat or'sMan ual...............................4 34
00E5 Current lyUn available See
Operat or'sMan ual...............................4 35
Á Don't Forget Your Key.................4 76
00B3 EngineOilLe velCann otBe
Mea sured <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011>...466
00B3 Engine OilLevelLo wStop Vehi‐
cle Turn Engi neOff............ ............. .....465
00B3 EngineOilPr ess ureSt op
Switc hOf fEngin e................................ 466
00B3 EngineOil Reduce OilLevel........ 465
0075 Front LeftMalfunction Service
Re quired (exa mp le) .............................4 44 006F
Front LeftSeat Backres tNo t
Lo cked (Exam ple) ................................ 479
00B6 FuelLevelLo w ............................ 463
00B6 GasCap Loose ...........................4 63
0025 Inoper ativeSee Oper ator's
Manu al....... ......................................... 435
00E5 Inoper ativeSee Oper ator's
Manu al....... ......................................... 436
007A Inoper ativeSee Oper ator's
Manu al....... ......................................... 437
0053 Inoper ative....... .......................... 448
0049 Intell. Light System Inoperativ e
... ..........................................................4 83
Á KeyNo tDe tected (red displ ay
messa ge).............................................4 75
Á KeyNo tDe tected (whit edis‐
pl ay messa ge)...................................... 475
0075 LeftSide Curtain Air bag Mal‐
func tion Service Required (Exam ple) ...4 45
¢ Lowe ring <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> ............450 Inde
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