2021 MERCEDES-BENZ C-CLASS SEDAN air condition

R
freq uent operation inmount ainouste rrain or
on poor road sur faces
R whe nth eengine isoftenleft idling forlong
per iods
R oper ation inpar ticula rly dus tycond ition s
and /orif air -rec ircula tion mod eis freq uen tly
used
In these orsimilar operating conditions ,ha ve the
int erior airfilt er ,engin eair clean er,engin eoil
and oilfilt er etc. chang edmor efreq uent ly.The
tir es mus tbe checkedmor efreq uentl yif th e
ve hicle isoper ated under increased loads. Fur‐
th er information canbeobt ained ataqu alif ied
spec ialistwo rkshop. Batt
erydisconne ctionperiods The
ASSYSTPL US service interva ldispla ycan
calc ulateth eser vice duedateonl ywhen the
batt eryis con nected. #
Notedown theser vice duedatedispla yedon
th eins trument displaybef orediscon necting
th ebatt ery(/ page300). Engine
compartment Opening
andclosing thehood &
WARNIN GRisk ofacci dent dueto driv‐
ing withth ehood unlocked
The hood mayopen andblockyo ur vie w. #
Neverre lease thehood when driving. #
Beforeev erytrip, ensur eth at thehood
is loc ked. &
WARNIN GRisk ofacci dent andinjury
when openingand closingthehood
The hood maysuddenl ydr op intoth eend
position .
Ther eis arisk ofinjur yfo ran yone inthe
hood's rang eof mo vement. #
Donotopen orclose thehood ifth er e
is aper son inthehood's rang eof mo ve‐
ment. &
WARNIN GRisk ofburnswhen opening
th ehood
If yo uopen thehood when theengine has
ove rheat edorwhen ther eis afire inthe
engine compartmen t,th efo llo wing situat ions
ma yocc ur:
R Youco uld come intoco ntact withho t
ga ses.
R Youco uld come intoco ntact withot her
ho t,escaping operating fluids. #
Beforeopen ingthehood, allowthe
ove rheat edengine tocool down. #
Intheeve ntofafire intheengine com‐
par tmen t,ke ep thehood closed and
call thefire ser vice. &
WARNIN GRisk ofinju rydue tomo ving
par ts
Com ponents intheengine compartmen tma y
con tinue running orstar tup sudden ly,ev en if
th eignition isswitc hedoff. Maint
enanc eand care30
1

Matt
efinish
R Onlyuse carepr oducts approvedfo r
Mer cedes-Ben z.
R Donotpolish theve hicle andalloywheels.
R Onlyuse carwashes that cor respond tothe
lat estengin eering standar ds.
R Donotuse carwash progr ams withafinal
ho twa xtrea tment.
R Donotus epa int cleane rs,buf fing orpolish‐
ing prod ucts ,gl oss preser vers,e.g. wax.
R Alw aysha ve paintw orkre pair scar ried out at
a qu alif ied spec ialistwo rkshop. No
teson cleaning decorativefo ils Obser
vetheno teson matt efinis hcar ein the
ch ap ter"No teson paintw ork/matt efinis hpa int‐
wo rkcar e"(/ page 309) .The yal so app lyto
matt edecor ativefo ils.
Obser vetheno teson cleaning decorativefo ils to
av oid vehicle damag e. Cleaning
R Forclea ning, useplenty ofwa terand amild
clea ning agent without additivesorabr asive
subs tances, e.g.a car shampooappr oved for
Mer cedes-Ben z.
R Remo vedirtimmediat ely, wher eposs ible,
whils tavo iding rubbing toohar d.Ther eis
ot her wise arisk ofdamagi ngthedecor ative
fo ilirre par ably.
R Ifth er eis dir ton thefinis hor ifth edecor a‐
tiv efo ilis dull: usethePa int Cleaner recom‐
mend edand approv ed forMer cedes-Benz.
R Insect remains: soakwithinsect remo verand
ri nse offth etreat edareas afte rw ards.
R Birddr oppin gs:soak withwa terand rinse off
af te rw ards.
R Topreve ntwa terst ains ,dr ya fo il-wr apped
ve hicle withasof t,absorbent clothafte r
eve rycar wash.
Av oiding dama getothedecor ative fo il
R The service life and color ofdecor ativefo ils
ar eim pair edby:
- Sunl ight -
Temp eratur e,e.g. hotair blower
- Weather condition s
- Stone chipping sand dirt
- Chemic alclean ingagent s
- Oilypr oduct s
R Donotuse polish onmatt edecorativ efo il.
Po lishin gwill have theef fect of shi ning the
fo il-wr apped surface.
R Donottr ea tmatt eor stru ctur eddeco rativ e
fo ils wit hwa x.Pe rm anen tst ains mayocc ur.
Sc ratche s,cor rosiv edeposits, areas affect ed by
cor rosion anddamag ecaused byinc orrect car e
canno tal wa ys be com pletely repair ed.Insuc h
cases, visitaqu alif ied spec ialistwo rkshop.
Yo ucan obtain mor einf ormat iononcar eand
cle anin gpr oduc tsfrom themanuf acturer.
In thecase offoil-wrapped surfaces, optica ldi f‐
fe re nces mayoccu rbe twee nth esur faces that
we renotpr otect edbyadec orativ efo ilaf te r
re mo ving adecor ativefo il. 31
0
Maint enance andcare

No
teson sno wch ains &
WARNIN GRisk ofacci dent dueto inc or‐
re ct mou nting ofsno wch ains
If yo uha ve mount edsno wch ains tothefront
wheels, thesno wch ains maydr ag agains t
th eve hicle body orchassis components.
This couldcaus edamag eto theve hicle or
th etir es. #
Nevermount snowch ains onthefront
wheels. #
Onlymount snowch ains onthere ar
wheels inpair s. *
NO
TEDama getocom pone ntsofthe
ve hicle body orchassis duetomount ed
sno wch ains If
yo umoun tsn ow chains tothefront wheels
of 4MA TICvehicles, youma ydamag eco mp o‐
nent sof theve hicle body orchassis . #
Onlymount snowch ains tothere ar
wheels of4MA TICvehicles. Obser
vethefo llo wing noteswhen usingsnow
ch ains :
R Snow chains areon lype rm issible forcer tain
wheel/t ire com binat ions.Yo ucan obtain
inf ormat ionabout this from anaut hor ized
Mer cedes -Benz Cent er.
R Forsaf etyre ason s,on lyuse snow chains that
ha ve been specif icallyapproved foryo ur
ve hicle byMer cedes-Ben z,or sno wch ains
wit hth esame qualit yst andar d.
R Ifsn ow chains areins talled, themaximum
per missible speedis30 mph(50 km/h).
R Vehicl eswith Activ ePa rking Assis t:Do
no tuse ActivePa rking Assistwhen snow
ch ains areins talled.
R Vehicl eswith leve lcontr ol:Ifsno wch ains
ar eins talled, onlydr ive at raised vehicle leve l
( / pag e18 9).
% Youcan deac tivateES P®
to pull away
( / pag e16 2). This allo ws thewheels to
spin, achie ving anincr eased driving forc e. Ti
re pres sur e No
teson tirepr essur e &
WARNIN GRisk ofacci dent dueto insuf ‐
fi cie ntor excess ive tir epr ess ure
Ti re swit heit her toolow or toohigh apr es‐
sur epr esent thefo llo wing hazar ds:
R thetir es could burst
R thetir es could wearexcess ively and /or
une venly
R thedr iving charact eristic sas wellas
st eer ing and braking charact eristic sma y
be severely im pa ired #
Observeth ere comme ndedtirepr es‐
su resand checkth etir epr essur eof all
tir es including thespar ewheel:
R mont hly
R ifalt ering theload ontheve hicle
R prior tolong journeys
R ifth eoper ating conditions chang e,for
ex am ple when drivin gof f-ro ad 336
Wheelsand tires

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions #
Have ESP ®
ch eckedat aqu alif ied spec ialistwo rkshop. 007A
0025
00E5
Inoperative SeeOperator's
Manual *
EBD ,ABS andESP®
aremalfunctioning.
Ot her driving systems anddriving safetysy stems (e.g. BAS)ma yal so be mal functi oning. &
WARNIN GRisk ofskid ding ifEBD, ABSandESP®
are malfuncti oning
The wheelsma ybl oc kdu ring braki ng and ESP®
do es notpe rfor m anyve hicle stabiliz ation.
The steer ability andbraking charact eristic sar ehea vilyim pair edand thebr aking distance mayincr ease. Inaddi‐
tio n,other driving safetysy stems areswitc hedoff. #
Drive on car efull y. #
Have thebr ak esy stem checkedimmediat elyat aqu alif ied spec ialistwo rkshop. Act
ive Brake Assist Func-
tions Currently LimitedSee
Operator's Manual *
Ve hicl eswith theDr iving Assistance Packag e:Ac tiveBr ak eAssi stwit hcr oss- traf fic functi on,Evasi ve Steer ing
Assis tor PRE‑S AFE®
PL US arete mp orarily una vailable oronl ypar tiall yav ailable.
Ve hicl eswithout theDr iving Assistance Packag e:Ac tiveBr ak eAssi stistemp orarily una vailable. #
Drive on.
As soon astheambient conditions arewit hin thesy stem limits, thesy stem will become available again. #
Ifth edispla ymessag edoes notdisappear ,st op theve hicle inaccor dance withth etra ffic con dition sand restar t
th eengine. Displa
ymessag esand warning/ indic ator lam ps 41
3

Ra
in-closing featur e
Slid ingsunr oof........... .............................82
Re ading lamp
see Interior lighting
Re alwo od (Car e)........................................ 312
Re ar climat eco ntr ol
Se <00570057004C0051004A00110011001100110011001100110011001100110011
001100110011> .....................................128
Re ar door s(c hild safetyloc k).... .................6 1
Re ar foglam p
Switc hingon/off.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011> 115
Re ar seat
see Seat
Re ar vie wcamer a
Ca re<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 311
Fu nctio n...<0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011>190
Opening thecamer aco ver(360°
Ca mer a)..... ........... .................................195
Se tting favo rite s(360° Camer a)... ......... 195
Re ar windo w
Ro ller sunblin d.<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 85
Re ar windo wheat er......... ......................... 126
Re fle ctive sa fety vest<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011> 314 Re
frig er ant (air conditioni ngsystem)
No tes... ............................................. ..... 375
Re fueli ng
Re fuel ingtheve hicle. ........................ ....1 48
Re mo teOnline
Char ging thest ar terbatt ery........ .......... 134
Coolin gor heat ingtheve hicle interior... 133
St artin gth eve hicle ........................... ....1 34
Re por ting safetydef ects..... ....................... 28
Re scue card................................................. 29
Re ser ve
Fu el....................................................... 372
Re setfunction (multimedia system). ...... 230
Re sidual heat............................................. 129
Re stor ing (fact oryse ttings)
see Resetfunction (multimedia system)
Re stra int system
Basic instruct ions forch ildr en.................5 0
Fu nctio nin an acci dent.... <0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011> 36
Fu nctio nality<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
00110011>35
Ma lfunctio <0051001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011001100110011> <0011001100110011001100110011001100110011001100110011001100110011
001100110011>36
Pr otect ion.......................................... ...... 35
Re duced protect ion.. ...............................3 5 Sel
f-tes <0057001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011> 35
Wa rning lam p..........................................3 5
Re versege ar
Inser ting....... ......................................... 144
Rims (car e)<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011> ............311
Ro adside Assistan ce(breakdo wn)..... .......23
Ro llaw ay protection
see HOL Dfun ction
Ro ller sunblind
Pa nor amaro of wit hpo we rtilt/sli d‐
ing panel....... .......................................... 80
Re ar wind ow<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
001100110011001100110011001100110011001100110011> 85
Sid ewi ndo ws<0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011001100110011001100110011
0011001100110011001100110011001100110011> 84
Ro ofload .................................................... 377
Ro oflugg agera ck
Loadi ng..... ............................................ 109
Secu ring.............. <0011001100110011001100110011001100110011001100110011001100110011
00110011001100110011001100110011> ..........109
Ro ute
Ca lcul ating ............................................239
Displ aying destination informatio n......... 241
Planning. ............................................... 236
Select ingatype... ..................................2 40
Selecti nganalte rn ativ ero ute.. .............. 242 Inde
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