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

When
theignition isne xt star ted, the
mediu msetting issele cted automatical lyand
Ev asiv eSt eer ing Assis tis available.
% IfAc tiveBr ak eAssi stisdeact ivat ed, the
00D4 symbol appearsinthest atus barofthe
multifu nctiondisplay. Bli
nd Spo tAs sist and Activ eBli nd Spo t
As sist wit hex itwa rning Fu
nction ofBlind SpotAssis tand Activ e
Bli nd Spo tAs sist wit hex itwa rning
Blin dSpo tAss istand ActiveBli nd Spo tAssi st
use twolat eral, rear-facin gra dar sensor sto
monit orthear ea up to130ft (40 m)behind and
10 ft(3 m) next to your vehicle.
If ave hicle isde tected atspe eds aboveappr ox‐
imat ely8 mp h(12 km/h) andthis vehicle subse‐
qu ent lyent ersth emonit oring rang edire ctly next
to your vehicle, thewa rning lam pin theoutside
mir rorlig hts upred. Pe
rm anen tst atus displa yin theins trument clus‐
te r:
R ¸ (gra y): system isactiv ated but inoper a‐
tiv e
R ¸ (green): system isactiv ated and oper a‐
tion al
If ave hicle isde tected clos eto your vehicle and
yo uswit chon thetur nsignal indicat orinthecor‐
re sponding direction, adoubl ewa rning tone
sou nds and there dwa rning lam pin theoutside
mir rorflashes .If th etur nsignal indicat or
re mains switchedon,allother detected vehicles
ar eindicat edonlyby theflashin gof there d
wa rning lam p.
If yo uove rtak eave hicle quickl y, no warning is
giv en. &
WARNIN GRisk ofacci dent despite Blind
Spo tAssi st
Bli nd Spo tAssi stdoes notre act tovehicles
appr oaching andovertakin gyo uat agr ea tly
di ffer ent speed. Blind
SpotAssis tcann otwa rndriver sin this
situat ion. #
Alw ayspa ycar eful attention tothetra f‐
fi c situ ation and maintain asaf edis‐
ta nce attheside oftheve hicle. Obser
vetheno teson driving systems andyour
re sponsibili ty;yo uma yot her wise failto recog‐
nize dangers(/ page 158).
Ex itwa rning
The exitwa rning isan addition alfunc tion of
Blin dSpo tAss istand canwarnvehicle occu‐
pants about approaching vehicles whenleaving
th eve hicle when statio nary. &
WARNIN GRisk ofacci dent despite exit
wa rning
The exitwa rning neit her react sto statio nary
obj ect sno rto vehicles approaching youat a
gr eat lydif fering spe ed.
The exitwa rning cannotwa rndriver sin these
situation s. Dr
iving andparking 18
3

#
Alw ayspa ypar ticular attention tothe
tr af fic situ ation whe nope ning thedoor s
and makesur eth er eis suf ficie ntcle ar‐
ance . If
th er eis ave hicle inthemonit oring rang e, this
is indic ated intheoutside mirror.If ave hicle
occupant opensthedoor ontheside withth e
wa rning, awa rning tone sou nds and thewa rning
lam pin theoutside mirrorst ar ts to flash.
This addit ionalfun ction ison lyavailable when
Blin dSpo tAs sis tis act ive. When theex itwa rn‐
ing isact ivat ed, itcan warnvehicle occupants
fo rup tothre eminut esafte rswitc hingtheigni‐
tion off.The exitwa rning isno long eravailable
on ce thewa rning lam pin theoutside mirror
fl ashes thre etimes.
The exitwa rning isonl yan aid and nota subs ti‐
tut efo rth eatt ent ion ofvehicle occupants. The
re sponsibili tyforopening andclosi ngthedoor s
and forlea ving theve hicle remains withth eve hi‐
cle occupants. Sy
stem limit s
Blin dSpo tAs sis tand ActiveBli nd Spo tAssi st
ma ybe limi tedin thefo llo wing situat ions,in par‐
tic ular :
R Ifth er eis dir ton thesensor sor thesensor s
ar eobscur ed
R Inpoor visibility ,e.g. due tofog, hea vyrain or
sno w
R Ifth er ear enar row vehicles, e.g.bicycles or
mo torbik es
R Ifth ero ad has very wide ornar row lanes
R Ifve hicles areno tdr iving inthemiddle of
th eir lane
Wa rnings maybe issued inerro rwhen driving
close tocrash barrier sor similar continuous lane
bor ders.Alw aysmak esur eth at ther eis suf fi‐
cie ntdist anc eto theside forot her traf fic or
obs tacle s.
Wa rnings maybe interru pte dwhen driving along‐
side long vehicles, forex am ple truc ks,fo ra pr o‐
long edtime.
Blind SpotAssis tis no toper ationa lwhen reve rse
ge ar iseng aged. The
exitwa rning maybe limit edinthefo llo wing
situat ions:
R When thesensor sar eco veredby adjac ent
ve hicles innar row par kingspac es
R When people approachth eve hicle
R Intheeve ntofstatio naryor slo wlymo ving
obj ect s
Fu nction ofbrak eapp lication (Activ eBlind
Spo tAssis t)
If Ac tiveBli nd Spo tAssi stdetects arisk ofaside
im pact inthemonit oring rang e, acou rse-co r‐
re cting brak eap plica tion iscar ried out. This is
designed tohelp youavo idacollis ion.
The cour se-cor recting brak eap plica tion isavaila‐
ble inthespeed rang ebe twee nap prox imat ely
20 mph(3 0km/h) and125mp h(2 00 km/h) . &
WARNIN GRisk ofacci dent despite
br ak eapplication ofActiveBli nd Spo t
Assi st
A cou rse-co rrect ing brak eapplication cannot
alw ayspr ev ent acollision. 18
4
Driving and parking

#
Alw aysst eer ,br ak eor accelera teyour‐
self ,espe ciallyif Ac tiveBli nd Spo t
Assi stwa rnsyo uor mak esaco urse-
co rrect ing brak eapplication. #
Alw aysmaint ainasaf edis tance atthe
sides. If
acour se-cor recting brak eap plica tion occu rs,
th ere dwa rning lam pflashes intheoutside mir‐
ro rand awa rning tone sou nds. Inadditio n,adi s‐
pl ay 1 indic atingth edang erofaside collision
appear sin themultifunc tiondispla y.
In rare case s,thesy stem maymak ean inappr o‐
pr iat ebr ak eapplication. Thisbrak eapplication ma
ybe interru pte dat anytime ifyo usteer
slightl yin theopposit edir ect ion oraccelera te.
Sy stem limit s
No tethesy stem limit ations ofActiveBli nd Spo t
Assi st;yo uma yot her wise notre cogni zethedan‐
ge rs (/ pag e18 3).
Eit hera cou rse-co rrect ing brak eapplication
appr opriateto thedr iving situation ,or non eat
all, mayoccur inthefo llo wing situat ions:
R Vehicles orobs tacle s,e.g. crash barrier s,are
locat edon both sides ofyour vehicle.
R Ave hicle approaches tooclosel yon theside.
R Youha ve adop tedaspor tydriving style wit h
high corner ing speeds.
R Youbr ak eor acc elerat esign ifican tly.
R Adr ivi ng safety system interve nes, e.g.ESP ®
or ActiveBr ak eAssi st.
R ESP ®
is de acti vated.
R Aloss oftirepr essur eor afa ulty tireis
de tected. Ac
tiv atin g/deac tivatin gBli nd Spo tAs sist or
Ac tiv eBli nd Spo tAs sist
Multimedia system:
4 Vehicle 5
k Assist ance
5 Blind SpotAssist #
Activate0073 ordeacti vate 0053 thefunc tion. Ac
tiv eLan eKe eping Assist Fu
nction ofActiv eLan eKe eping Assist
Ac tiveLa ne Keeping Assistmonit orsth ear ea in
fr ont ofyour vehicle bymeans ofthemultifunc ‐
tion camer a(/ page15 8). Itser vesto protect
yo uag ains tunin tentio nallyleav ing your lane .
Yo uwill bewarned byvibr ation pulses inthe
st eer ing wheel andguided byacour se-cor rect‐
ing brak eap plica tion back intoyo ur lane .
Ac tiveLa ne Keeping Assistis available inthe
speed rang ebe twee n37 mph(60 km/h) and
12 4mp h(2 00 km/h) .
Ac tiveLa ne Keeping Assistcan neither reduce
th erisk ofan accident ifyo ufa ilto adap tyo ur
dr ivin gst yle nor override thelaws ofphysics. It
can notta ke intoacc ount road, weather ortraf fic Dr
iving and parking 18
5

condi
tions.Ac tiveLa ne Keeping Assistis onl yan
aid. Youar ere sponsible formaint ainingasaf e
dis tance totheve hicle infront, forve hicle
speed, forbr aking ingood timeandforst ay ing
in lane. If
alane- correcting brak eap plica tion occu rs,dis‐
pla y1 appear sin themultifunc tiondispla y.
The system does notappl yth ebr ak eif yo uact i‐
va te thetur nsignal indicat or.
Ve hicl eswith Drivin gAss istanc ePa ckag e:if
th esy stem detects anobs tacle,suc has ano ther
ve hicle intheadjacen tlane, itwill appl yth e
br ak ere ga rdless ofthetur nsignal indicat or. Yo
uar ewa rned byvibr ations inthesteer ing
wheel inthefo llo wing circums tances:
R ActiveLa ne Keeping Assistde tects alane
mar king.
R Afront whe eldrives over this lane marking.
Condit ionsfora co urse -cor rectin gbr ak e
ap plica tion(vehicles withou tDr iving Assis‐
tance Packag e)
Lane markings weredetected on both sides of
th elane. Thefront wheel drives ove ra continu‐
ous lane marking.
% Abr ak eapp lication maybe interru pte dat
an ytime ifyo usteer slightl yin theopposit e
dir ect ion.
Conditions fora co urse -cor rectin gbr ak e
ap plica tion(vehicles withDr iving Assistance
Pa ckag e)
R Acontinuou sla ne mar king wasde tected and
dr iven ove rwit hth efront wheel.
R Alane marking andanappr oaching vehicle,
an overtaking vehicle orvehicles driving par‐
allel toyour vehicle weredetected inthe adjac
entlane .The fron twheel drives ove r
th elane marking .
% Abr ak eapplication maybe interru pte dat
an ytime ifyo usteer slightl yin theopposit e
dir ect ion.
Sy stem limit s
No lane- correcting brak eap plica tion occu rsin
th efo llo wing situat ions:
R Youcle arly and activel yst eer ,br ak eor accel‐
er ate.
R Ifadr iving safetysy stem interve nes, such as
ES P®
,Ac tiveBr ak eAssi stor ActiveBli nd
Spo tAssi st.
R Youha ve adop tedaspor tydriving style wit h
high corner ing speeds orhigh ratesof accel‐
er ation.
R When ESP®
is deactiv ated.
R Ifaloss oftirepr essur eor afa ulty tireis
de tected and displ ayed.
If yo udeac tivateth eAc tiveLa ne Keeping Assist
wa rning and thelane marking scann otbe clear ly 18
6
Driving and parking

de
tected, itis pos siblethat no lane correcting
br ak eap plica tion take splace (/page18 8).
Th esy stem maybe impair edorma yno tfunc tion
par ticular lyin thefo llo wing situat ions:
R Ifth er eis poor visibility ,e.g. due toinsuf fi‐
cie ntillu mina tionofthero ad, ifth er ear e
highly variable shade condition sor inrain,
sno w,fogor hea vyspr ay.
R Ifth er eis glar e, e.g .fr om oncom ingtraffic,
th esun orreflect ions.
R Ifth ewindshield inthear ea ofthemultifunc ‐
tion camer ais dir ty,or ifth ecamer ais fog‐
ge dup, damag edorcovered.
R Ifth er ear eno lane marking s,or several
unc lear lane markingsarepr esen tfo rone
lane, e.g.around roadw orks .
R Ifth elane marking sar ewo rn,dar kor cov‐
er ed.
R Ifth edis tance from theve hicle infront istoo
shor tand thus thelane marking scann otbe
de tected. R
Ifth elane markings chang equ ickl y, e.g.
lanes branc hof f,cr oss one another or
mer ge.
R Ifth ero ad isvery nar row and wind ing.
R Vehicl eswith Drivin gAss istanc ePa ck‐
ag e:ifth era dar sensor sin there ar bum per
ar edir tyor coveredin sno wand anobs tacle
is de tected inyour lane ,no lane -cor recting
br ak eap plica tion take splace.
Ac tiv atin g/deac tivatin gAc tiv eLan eKe eping
Assis t &
WARNIN GRisk ofacci dent despite
Ac tiveLa ne Keeping Assistwa rning
A lane- correcting brak eap plica tion canno t
al wa ys bring theve hicle backint oth eor igi‐
nal lane. #
Alw aysst eer ,br ak eor accelera teyour‐
self ,espe ciallyif Ac tiveLa ne Keeping
Assis twa rnsyo uor mak esalane -cor‐
re cting brak eap plica tion. &
WARNIN GRisk ofacci dent despite inter‐
ve ntio nof ActiveLa ne Keeping Assist
Ac tiveLa ne Keeping Assistdoes notde tect
tr af fic condi tions orroad user s.The system
ma ymak ean inappr opriatebr ak eapplica‐
tion .
The brak eapplication canbeinterru pte dat
an ytime, forex am ple, bysteer ing slightl yin
th eopposit edir ect ion. #
Alw aysmak esur eth at ther eis suf fi‐
cie ntdist anc eto theside forot her traf‐
fi c or obs tacle s. &
WARNIN GRisk ofacci dent despite Lane
Ke eping Assist
Lane Keeping Assistcann otalw aysclear ly
de tect lane mar kings .
In such case s,Lane Keeping Assistcan:
R givean unnec essarywa rning
R notgiv eawa rning #
Alw ayspa ypar ticular attention tothe
tr af fic situ ation and keep within the Dr
iving and parking 18
7

lane,
espec iallyif Ac tiveLa ne Keeping
Assis taler tsyou. Be
sureto obser vethesy stem limit ations of
Ac tiveLa ne Keeping Assist. #
Press butt on2.
If indicat orlam p1 lights up,ActiveLa ne
Ke eping Assistis activ ated, thelane mark‐
ings aresho wnaslight intheassis tance gr
ap hic. Whe nAc tiveLa ne Keeping Assistis
activ e,thelane marking sar esho wningreen
in theassis tance grap hic.
Se ttin gAc tiv eLan eKe eping Assist
Multi media system:
4 Vehicle 5
k Assist ance
5 Act .Lane Keep. Assist
Ac tiv atin g/deac tivatin gthe warning #
Activate0073 ordeacti vate 0053 Lane Depart.
Warning.
Yo udo notre cei veanywa rning when leaving
a lane ifth elane keeping warning system is
deactiv ated. DY
NA MIC BODY CONT ROLfun ction DY
NA MIC BODY CONTR OLcontinuously adjusts
th ech aract eristic sof thesuspension dampersto
th ecur rent operati ng and drivi ng cond itions.
The damp ing istun edindiv iduall yfo reac hwhee l
and isaffect ed bythefo llo wing fact or s:
R The road sur face condi tions
R Vehicle load R
The drive pr ogr am select ed
R The driving style
The drive pr ogr am can beadjus tedusing the
DY NA MIC SELE CTswitc h. AIRMA
TIC Fu
nction ofAIRMA TIC
AIRMA TICisan air suspension system withva ria‐
ble dam pingfo rim prove ddr iving comfort.The
all-r ound leve lcon trol system ensur esthebes t
possible suspension andconstant grou nd clea r‐
anc e,even withaladen vehicle. When driving at
speed, theve hicle islowe redaut omatic allyto
im prove driving safetyand toreduce fuelcon‐
sum ption. Youalso have theop tion ofmanually
adjus tingtheve hicle leve l.
AI RMA TICincludes thefo llo wing compone nts
and func tions:
R Airsuspen sionwithaut omat icleve lcon trol
R Speed -dependentlo we ring toreduce fuel
con sum ption
R Manuall yselec table high leve lse tting for
gr ea tergr ound clearance 18
8
Driving and parking

R
ADS PLUS (Ada ptive Dam ping System with
con stant dam pingfo rc eadjus tment)
R DYNA MIC SELE CTswitc hand leve lbutt on
Av ailab lesuspe nsion settings
A (Comfort)
R The susp ensio nse tting iscomf ortable.
R The vehicle issetto thenor mal leve l.
R When drivin gat speeds above77 mph
(1 25 km/ h)theve hicle islowe red.
R When driving atspeeds below50 mph
(80 km/ h),theve hicle israised again.
; (Econo my)
R The suspension setting iscomf ortable.
R The vehicle issetto thelow leve l.
R The vehicle isno tlo we redan yfur ther ifyo u
ar etrave ling athigher speeds.
C (Sport)
R The suspen sionsetting isfirm er.
R The vehicle issetto thelow leve l. R
The vehicle isno tlo we redan yfur ther ifyo u
ar etra veling athigher speeds.
B (SportPlus)
R The suspen sionsetting iseve nfirm er.
R The vehicle issetto thelow leve l.
R The vehicle isno tlo we redan yfur ther ifyo u
ar etrave ling athigher speeds.
% Oper ation withatrailer orbicy clerack :if
tr ans porteq uipment, suchas atra iler ora
bicy clerack ,is att ached tothetrailer hitch
and theelectr icalconnect ionhas been cor‐
re ctly established, theve hicle remains at
nor mal leve lir re spectiv eof speed orthe
dr ive pr og ram sele cted.
Se tting theve hicl eleve l &
WARNIN GRisk ofacci dent because
ve hicle leve lis toohigh
Dr iving charact eristic sma ybe impair ed.
The vehicle candrift outw ards, forex am ple,
when steer ing orcor ner ing. #
Choose ave hicle leve lwhic his suit ed
to thedr iving style and thero ad sur face
condi tions. &
WARNIN GRisk ofentr apment from vehi‐
cle lowe ring
Whe nlowe ring theve hicle, people could
become trapped ifth eir limbs arebe tween
th eve hicle body andthetir es orunder neath
th eve hicle. #
Mak esur eno one isunder neathth e
ve hicle orintheimmediat evicin ityof
th ewheel arch es when theve hicle is
being lowe red. &
WARNIN GRisk ofbeco ming trap ped
du eto theve hicle lowe ring
Ve hicl eswith AIRMA TICorleve lcontr ol:
when youunlo adlugg ageor lea vetheve hi‐
cle, theve hicle firs trises slightly andthen
re tur ns tothese tle ve lshor tly af te rw ards. Dr
ivin gand parking18
9

Yo
uor anyone else inthevicinit yof the
wheel arch es ortheunderbody couldthus
bec ome trapped.
The vehicle canalso belowe redaf te rbeing
loc ked. #
When leaving theve hicle, makesur e
th at nobody isin thevicinit yof the
wheel arch es ortheunderbody . *
NO
TEDama gedue tovehicle lowe ring Pa
rts of thebody could bedamag edwhen
th eve hicle islowe red. #
Mak esur eth at ther ear eno obs tacles
suc has curbs underneathor inthe
immed iatevicin ityofthebody when the
ve hicle isbeing lowe red. Re
quirement s:
R The vehicle hasbeen star ted.
R The vehicle mustno tbe mo ving faster than
37 mph(60 km/h). Ra
ising theve hicl e #
Press butt on1.
Indica torlam p2 lights up.
The vehicle issetto thehigh leve l.
Yo ur sele ction issave d. The
vehicle islowe redag ain inthefo llo wing sit‐
uation s:
R When drivin gfa ster than 50 mph(80 km/h).
R When driving between 37mph(60 km/h)
and 50mph(80 km/h) forapp roxima tely
th re eminut es.
R Aftersele cting adr ive pr ogr am using the
DY NA MIC SELE CTswitc h.
The vehicle isadjus tedto theheight ofthe
act ive dr ive pr ogram.
Lo we ring theve hicl e #
Press butt on1.
Indica torlam p2 goes out.Thevehicle is
adjus tedto theheight oftheactiv edr ive pr o‐
gr am. Re
ar vie wcamer a Fu
nction ofthere ar vie wcamer a
When youen gage reve rsege ar,th eimag efrom
th ere ar vie wcam erais sho wninthemedia dis‐
pla y.Dyna micguide lines showthepat hth e
ve hicle willtake wit hth ecur rent steer ing ang le. 19
0
Driving and parking