2021 MERCEDES-BENZ C-CLASS SEDAN engine oil

No
teson windshield washer fluid Obser
vetheno teson oper ating fluids
(/ page36 9). &
WARNIN G‑Ri sk offire and injuryfrom
wind shieldwa sher concen trat e
Wi ndsh ield wa sher concen trat eis highly
fl ammab le.Itcoul dign ite if it com esinto
con tact with hotengine component partsor
th eex haus tsy stem. #
Mak esur eth at no wind shieldwa sher
concen trat espills outnext to thefiller
open ing. *
NO
TEDama getotheex terior lighting
due touns uitable windshieldwa sher fluid Uns
uitable windshieldwa sher fluid maydam‐
ag eth eplas ticsur face oftheex terior light‐
ing. #
Onlyuse windshield washer fluid whic h
is also suitable foruse onplastic sur fa‐
ces, e.g.MBSumm erFitor MB Winter‐
Fit. *
NO
TEBlocked spr aynozzl escau sed by
mixing windshieldwa sher fluids #
Donotmix MBSum merFitand MBWin‐
te rFit withot her windshield washer flu‐
ids. Do
notuse distilled orde- ionizedwa ter.Ot her‐
wise, thefill le ve lsen sor maybe trigg ered erro ‐
neou sly.
Re comme ndedwindsh ield wa sher fluid:
R Abo vefreezing point:e.g. MBSummerFi t
R Belo wfreezing point:e.g. MBWinterFi t
Fo rth ecor rect mixi ngratio ,re ferto theinf orma‐
tion ontheantif reeze container .
Mix washer fluid withwind shieldwa sher fluid all
ye ar round . Re
frig er ant No
teson refrig er ant
Obser vetheno teson oper ating fluids
(/ page36 9). *
NO
TEDama gedue toinc orrect refrig er‐
ant If
anon-appr ovedre frig er ant isuse d,thecli‐
mat econ trol system maybe damag ed. #
USA:use onlyR‑1 34a refrig er ant. #
Canada: useonlyR‑1 234yf refrig er ant. *
NO
TEDama getotheclimat econ trol
sy stem due toinc orrect refrig er ant com‐
pr essor oil #
Onlyuse refrig er ant com pressor oilthat
has been approvedby Mer cedes-Ben z. #
Donotmix theappr ovedre frig er ant
com pressor oilwithadif fere nt refrig er‐
ant com pressor oil. Wo
rkon theclimat econ trol system maybe car‐
ri ed out onlyby aqu alif ied spec ialistwo rkshop.
All appli cable regulations, aswellas SAEstand‐
ar dJ63 9,mus tbe adher edto.
The information labelforth eclimat econ trol sys‐
te m rega rding there frig er ant type andthere frig‐ Te
ch nica lda ta 37
5

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
Run FlatIndicat orInopera-
tive *C
anada only:
The tirepr essur eloss warning system ismalfunct ioning. #
Consult aqu alif ied spec ialistwo rkshop. Engine
oil Displa
ymessag es
Possible causes/conseq uencesand0050 0050
Solutions
00B3 Check Engine OilAtNext
Refueling *T
heengine oilleve lhas dropped totheminimum leve l.
* NO
TEEngi nedama gecau sed bydriving withinsuf ficie ntengi neoil #
Avoid long journeys wit hins ufficie ntengi neoil. #
Checkth eengine oilleve lwhen next refuel ing.
Ad dengin eoil (/ page305 ).
No teson engine oil(/ page37 2). 422
Displaymessa gesand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
00B3 Check Engine OilLevel
(Add 1quart) *D
ispla ymess ageonl yfo rcer tainengi nes:
The engineoille ve lhas dropped totheminimum leve l.
* NO
TEEngi nedama gecau sed bydriving withinsuf ficie ntengi neoil #
Avoid long journeys wit hins ufficie ntengi neoil. #
Whe nne xt refuel ing, add 1.1 US qt(1l)of engine oil(/ page305) .
No teson engine oil(/ page37 2).
00B3 Engine OilRed uce OilLevel *D
ispla ymess ageonl yfo rcer tain engin es:
The engin eoil leve lis toohigh.
* NO
TEEngi nedama gecau sed bydriving withexc ess engine oil #
Avoid long journeys wit hex cess engineoil. #
Consul ta qu alif ied spec ialistwo rkshop immediat elyand have theengine oilleve lre duced.
00B3 En gine OilLevel LowStop
Vehicle TurnEngine Off *D
ispla ymess ageonl yfo rcer tainengi nes:
The engineoille ve lis toolow. Dis
play messa gesand warning/ indic ator lam ps 423

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
* NO
TEEngi nedama gecau sed bydriving withinsuf ficie ntengi neoil #
Avoid long journeys wit hins ufficie ntengi neoil. #
Stop theve hicle immediat elyinaccor dance withth etraf fic condi tions.Do notcontinu edr ivi ng und eranycir‐
cums tances. #
Swi tchof fth eengine. #
Add1.1 US qt(1l)of engine oil(/ page305) . #
Che cktheengine oilleve l.
No teson engine oil(/ page37 2).
00B3 Engi neOilPre ssu reStop
Swi tch OffEngi ne *D
ispla ymess ageonl yfo rcer tainengi nes:
The oilpr ess ureis toolow.
* NO
TEEngi nedama gecau sed bydriving withinsuf ficie ntoil press ure #
Avoid driving withinsuf ficie ntoil press ure. #
Stop theve hicle immediat elyinaccor dance withth etraf fic condi tions.Do notcontinu edr ivi ng und eranycir‐
cums tances. #
Consu ltaqu alif ied spec ialistwo rkshop. 42
4
Displa ymessag esand warning/ indic ator lam ps

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 425

Ac
tiv eSte ering Assis t
Ac tivati ng/d eactiv ating........... ..............175
Ac tiveEmerg encyStop Assis t................ 176
Ac tiveLa ne Chang eAssi st<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 177
Fu nctio n...<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>174
Sy stem limits. ........................................1 74
Ad aptiv ecr uise contr ol
see ActiveDis tance AssistDIS TRONI C
Ad aptiv eHighb eamAssist
Fu nctio n...<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011>117
Swi tching on/of f.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 118
Ad diti ves
Engi neoil.... ............ ...............................372
Fu el....................................................... 372
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.. ......................2 99
Bur mes ter®
sur round soun dsy stem.. ...298 Ad
jus tingthe bass,mid- rang eand
tr eble
Bur mes ter®
sur round soun dsy stem ..... 298
Ad jus tingthe mid- rang e,treble and
bass
Burmes ter®
sur round soun dsy stem ..... 298
Ad jus tingthe sound focus
Bur mes ter®
sur round soun dsy stem ..... 298
Ad jus tingtreb le,mid- rang eand bass
se ttings
Ad vanced soundsystem.. ......................2 99
Bur mes ter®
sur round soun dsy stem ..... 298
ADS PLUS dam ping system
see AIRMA TIC
Ad vanced sound system
Ad jus ting thebalance/f ader............ ..... 299
Ad jus ting treb le,mid -rang eand bass
se tting s.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 299
Ca lling upthesound menu.................... 299
Inf ormation.. .................................... ...... 298
Switc hingvolume adjustment on/ off... .2 99
Af ter-sales service center
see ASSYSTPL US Air
bag
Re duced protect ion.. ...............................4 4
Air distribut ion
Se tting. .................................................. 126
Air inle t
see Air-water duct
Air pressu re
see Tire pressur e
Air suspension
see AIRMA TIC
Air vents
Ad jus ting (front) ............ ........................ 129
Ad jus ting (rea r)............. .........................130
Air vents
see Airvents
Ai r-condi tioningsystem
see Climat econ trol
Air -recir cula tion mode..............................1 29
Air -water duct
Ke eping free... ....................................... 307
Airbag Activati on........... .....................................36
Fr ont airbag (driver ,fr ont passeng er)....... 41 Inde
x44
1

00E5
Currentl yUna vailable See
Opera tor's Manua l........ ...... ...................412
Á Don't Forget Your Key<0011001100110011001100110011001100110011001100110011001100110011
00110011> 384
00CC Drive More Slowly<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 409
00B3 Engine OilLevelCann otBe
Mea sured<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011>......425
00B3 Engine OilLevelLo wStop Vehi‐
cle Turn Engi neOff............ ....................423
00B3 EngineOilPr ess ureSt op
Switc hOf fEngin e... ...............................4 24
00B3 EngineOilRe duce OilLevel.......... 423
0075 Front LeftMalfunction Service
Re quired (exa mp le)...............................3 80
00B6 FuelLevelLo w............................. 393
00B6 GasCap Loose .............................3 93
0025 Inoper ativeSee Oper ator's
Manu al........ ...........................................411
00E5 Inoper ativeSee Oper ator's
Manua l....... ..... ....................................... 412 007A
Inoper ativeSee Oper ator's
Manua l....... ............................................ 413
0053 Inoper ative..... ...............................4 15
: Intell. Light System Inoperativ e....386
Á KeyNo tDe tected (red displ ay
messa ge)<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011001100110011> 384
Á KeyNo tDe tected (whit edis‐
pl ay messa ge)<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 383
0075 LeftSid eCu rtain Airbag Mal‐
fun ction ServiceRe quired (Exam ple) .....3 80
¢ Lowe ring............. <0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> 409
ä Malfunctio nDr ive at Ma x.50
mp h<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 407
: Malfunction SeeOperato r’s
Manual... ............................................... 385
Á ObtainaNe wKe y<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> 383
ç Off<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 403
00D9 Off<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 401
0049 Parking Brak eSee Opera tor's
Manua l......... ......................................... 396 0077
PleaseCor rect Tire Pressur e... ..... 419
0049 Please Release Parking Brak e.. .... 399
006F Rear Lef tBac kres tNo t
La tched (exa mp le).................................3 90
Á Replace KeyBat tery <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 383
003D SeeOperator's Manua l........ ......... 416
0075 SRSMalfunction Service
Re quired ................................................ 380
Ù Steer ing Malfunct ionIncreased
Ph ysical Effort See Operator's Manua l.. 388
Ù Steer ing Malfunct ionStop
Immediat elySee Oper ator's Manual ..... 389
003D Stop Vehicle LeaveEngi neRun‐
ning <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011>........417
003D Stop Vehicle SeeOper ator's
Manual... ................................................ 416
00CC Stop Vehicle Vehicle TooLo w....... 408
ç Suspended ................................... 403
: SwitchOf fLights.... ......................3 86
: SwitchOn Head lamp s<0011001100110011001100110011001100110011001100110011001100110011
00110011> 386 Inde
x44
9

ECO
star t/s topfunc tion
Au tomatic engine star t.......................... 139
Au tomatic engine stop..... .................. ....1 39
Me thod ofoper ation.. ............................1 39
Switc hingoff/on ................................... 140
Electr icpa rking brak e
Appl ying automat ically.<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> 154
App lying orreleasing manuall y.............. 156
Emerg encybraki ng............ ....................156
Re leasing automat ically.<0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> 155
Electr onicStabil ityProg ram
see ESP®
(Electr onicStabilit yPr og ram)
Emer gency
Fir st-ai dkit (softsided)...... .................... 315
Ov ervie wof thehelp functions........ ........ 18
Re flect ive saf etyve st<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011> 314
Re mo ving thewa rning triang le...............3 14
Se tting upthewa rning triang le..............3 15
Emer gency braking ................................... 156
Emer gency braking
see BAS(Br akeAssi stSystem)
Emer gency engine star t....... ..................... 331 Emer
gency key
Loc king adoor ................................... ..... 70
Un loc kin gadoor. .................................... 70
Emer gency oper ation mode
St artin gth eve hicle ........................... ....1 33
Emer gency release
Tr unk lid(from inside) ...................... ........ 76
Emer gency spar ewheel
No tes... ............................................. ....3 64
Emer gency Tensioning Devices
Ac tivati on........... .....................................36
En gine
ECO star t/ stop funct ion.................. ...... 139
Engi nenum ber......... ............. ................368
St artin g(eme rgency operation mode).. .133
St artin g(R emo teOnline).... ............... ....1 34
St artin g(sta rt/s topbutt on).............. .... 132
St artin gassis tance <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> ......325
Swi tching off(s ta rt/s topbutt on)...... .... 150
Engine data
Dis playing ........................................ ...... 143
Engine number.......................................... 368 Engine
oil
Ad ditiv es................................................ 372
Capaci ty................................................ 373
Chec kingth eoil leve lusing theoil
dips tick.... ............................................. 303
Chec kingtheoil leve lusing theon-
boar dcom puter.. ................................... 304
MB- Freig abe orMB- Appr oval.. ...............3 73
Qua <004F004C0057005C001100110011001100110011001100110011001100110011
001100110011> ....................................373
To pping up............................................. 305
Ent ering charact ers
Fu nctio n/no tes.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> 219
On theto uc hpad.. .................................. 221
ESC (Elect ronic Stabil ityContr ol)
see ESP®
(Electr onicStabilit yPr og ram)
ESP ®
Cr osswi ndAssis t....................................161
ESP ®
(Electr onicStabil ityProg ram)
Ac tivati ng/d eactiv ating........... ..............162
Fu nctio n/no tes.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 160
Ext erior light ing
see Ligh ts
Ext erior light ing(car e)..............................3 11 Inde
x453