2021 MERCEDES-BENZ C-CLASS SEDAN attention assist

&
WARNIN GRisk ofacci dent dueto
re strict ed detection perform anc eof vehi‐
cle sensor sand camer as
If th ear ea around vehicle sensor sor cam‐
er as isco vered, damag edordir ty,cer tain
dr ivin gand safetysy stems cann otfunction
cor rectly .The reisarisk ofan accident. #
Keep thear ea around vehicle sensor s
or camer asclear ofanyobs tructions
and clean. #
Have damag eto thebum per,ra diat or
gr ille orstone chipping inthear ea of
th efront and rear wind owsrepair edat
a qu alif ied spec ialistwo rkshop. Pa
rticular ly,ke ep thear eas around thesensor s
and camer asfree ofdir t,ice orslush
(/ page31 1).The sens orsand came rasmus t
no tbe coveredand thede tection rang es arou nd
th em mus tbe kept free. Donotatt achadd itiona l
lice nse platebrac kets, advertisemen ts,sticke rs,
fo ils orfoils toprotect agains tst one chipping sin
th ede tection rang eof thesensor sand camer as. Mak
esur eth at ther ear eno ove rhang ingloads
pr otru ding intoth ede tection rang e.
If th er eis damag eto abum perorthera diat or
gr ille, orafte ran impact, have thefunc tion of
th esensor sch eckedat aqu alif ied spec ialist
wo rkshop. Have damag eor stone chipping inthe
ar ea ofthecamer ason thewindshield andrear
wind owrepair edataqu alif ied spec ialistwo rk‐
shop. Ov
ervie wof driving systems anddriving
saf etysy stems R
ABS(Ant i-lockBra king System)
(/ page16 0)
R BAS(Bra keAssis tSys tem) (/ page16 0)
R ESP ®
(Electr onicStability Program)
(/ page16 0)
R ESP ®
Cr oss wind Assi st(/ pag e16 1)
R EBD (El ectr onicBra keforc eDis tribution)
(/ page16 2)
R STEER CONTR OL(/ page 162)
R HOLD functio n(/ page 162) R
HillSt artAs sis t(/ page16 3)
R ATTENTION ASSIST(/ page16 4)
R Cruise contr ol(/ page16 5)
R DYNA MIC BODY CONTR OL(/ page18 8)
R AIRMATIC (/ page 188)
Dr ivin gAss ista nce package
The follo wing functionsar epar tof theDr iving
Assis tance Packag e. Cer tain func tionsar eonl y
av ailable insom ecoun tries. Som efun ction sar e
also available without theDr iving Assistance
Pa ckag e, albeit withre strict ed functi onality.
R ActiveDis tance AssistDIS TRONI C
(/ page 167)
R ActiveSpe edLimi tAssi st(coun try- depend‐
ent )(/ page17 1)
R Route-based speedadap tatio n(co untr y-
dependen t)(/ page17 2)
R ActiveBr ak eAssi st(/ pag e17 8)
R ActiveSt eer ing Assis t(count ry-de pende nt)
(/ page 174)
R ActiveEmerg encyStop Assis t(countr y-
dependen t)(/ page17 6) Dr
iving and parking 15
9

&
WARNIN GRisk ofacci dent andinjury
due totheve hicle rolling away
Af tera shor ttime, HillStartAs sis tno longer
holds theve hicle. #
Swif tly mo veyour foot from thebr ak e
pedal totheaccelera torpeda l.Do not
lea vetheve hicle when itis being held
by HillSt artAs sis t. AT
TENTI ONASSIST Fu
nction ofATTENTI ONASSIST
AT TENTION ASSISTassis tsyouon long,mon oto‐
nous journeys,e.g. onhighw aysand trunk roads.
If AT TENTION ASSISTde tects indicatorsof fati‐
gu eor incr easing laps es inconce ntration onthe
par tof thedr iver ,it sugg ests taking abr ea k.
AT TENTION ASSISTis onl yan aid. Itcann ot
alw aysde tect fatig ue orlaps es inconce ntration
in tim e.The system isno ta subs titutefo ra we ll-
re sted and attent ive dr iver .On long journeys,
ta ke regular break sin good timethat allo wfor
adeq uatere cup erati on. Yo
ucan choose between twose ttings:
R Standar d:nor mal system sensit ivity.
R Sensitiv e:higher system sensit ivity.The
dr iver iswa rned ear lier and theatt ent ion
le ve lde tected byATTENTION ASSISTis adap‐
te daccor dingly.
If dr ow siness orincr easing lapsesinconcen tra‐
tion arede tected, theATTE NTION ASSIS T:Take
a Break !wa rning appear sin theIns trument Dis‐
pla y.Yo ucan ackn ow ledg eth emessag eand
tak eabr eak wher eneces sary.Ifyo udo notta ke
a br eak and ATTENTION ASSISTcont inues to
de tect incr easing lapse sin concentr ation, you
will bewarned again afte ra minimu mof
15 minut es. Yo
ucan have thefo llo wing status informat ionfor
AT TENTION ASSISTdispla yedin theassis tance
menu oftheon- boar dcom puter:
R The lengt hof thejour neysince thelas t
br eak .
R The attent ion leve lde term ined byATTENTION
ASS IST.
If AT TENTION ASSISTis unable tocal cul ateth e
att ent ion leve land cannotissue awa rning, the
Sys tem Suspend edmes sage appear s.
If AT TENTION ASSISTis deactiv ated, theÛ
symbol appearsin theassis tance grap hicin the
Ins trument Displaywhen theengine isrunning .
AT TENTION ASSISTis activ ated aut omaticall y 16
4
Driving and parking

when
theengine isre-sta rted. The lastselect ed
sensit ivityleve lre mains stor ed.
Sy stem limit s
AT TENTION ASSISTis activ ein the37 mph
(60 km/ h)to 124mp h(2 00 km/h) speedra ng e.
Pa rticular lyin thefo llo wing situat ions,AT TEN‐
TION ASSISTonl yfunct ionsinare strict ed man‐
ner and warnings maybe dela yedor notocc ur:
R Ifyo uha ve been driving forless than appr ox‐
imat ely30 min utes.
R Ifth ero ad con dition ispoor (unevenro ad
sur face orpotholes).
R Ifth er eis ast ro ng side wind.
R Ifyo uadop ta spor tydrivin gst yle (high cor‐
ner ing speeds orhigh ratesof acceler ation).
R Ifth eSt eer ing Assis tfunc tion ofActiveDis ‐
ta nce AssistDIS TRONI Cis acti ve.
R Ifth etime hasbeen setincor rectly .
R Ifyo uch ang elane sand vary your spee dfre‐
qu ent lyIn activ edr iving situations. The
ATTENTION ASSISTdr ow siness oraler tness
assessment isrese tand restar tedwhen continu‐
ing thejour neyin thefo llo wing situat ions:
R Ifyo uswit choffth eengine.
R Ifyo uunf astenyo ur seat beltandopen the
dr iver's door (e.g.tochang edr iver sor take a
br eak).
Se tting ATTENTI ONASSIST
Multimedia system:
4 Vehicle 5
k Assist ance
5 ATTE NTION ASSIS T
Se tting options #
Select Standard, SensitiveorOff.
Sugg esting are st area #
Select SuggestRes tArea. #
Activate0073 ordeacti vate thefunc tion 0053.
If AT TENTION ASSISTde tects fatig ue or
incr easing lack ofatt ention ,it sugg ests a
re st area inthevicinit y. #
Selec ta sugg estedre st area: youar egui‐
ded totheselect edrest area. Spe
edcont rolcr uise contr ol Fu
nction ofcruise contr ol
Cr uise controlre gulat esthespeed totheva lue
selec tedby thedr iver .
If yo uacc elerat eto ove rtak e, forex am ple, the
st or ed speed isno tdele ted. Ifyo ure mo veyour
fo ot from theacceler ator pedal afte rove rtakin g,
cr uise control will resume speed regulation back
to thestor ed speed.
Yo ucan stor ean yspeed above15 mp h
(20 km/ h)up tothemaximum designspeed.
Obser vetheno teson driving systems andyour
re sponsibili ty;yo uma yot her wise failto recog‐
nize dangers(/ page 158).
Me rcedes‑ AMGvehicl es:Cruis econtr olis
av ailable uptoamax imum speedof 155mp h
(250 km/h).
Displa yson themu ltifunct iondisp lay
R h (gray):cr uise control isselect edbut
no tye tacti vated.
R h (green): cruise control isactiv e. Dr
iving andparking16
5

If
aut onomous braking orsitua tion-dependent
br aking assistance hasoccu rred, displa y1
appear sin themultifunc tiondispla yand then
aut omaticall ygoes outafte ra shor ttime. &
WARNIN GRisk ofan acci dent caused by
limit eddetection perform anc eof Active
Br ak eAssi st
Ac tiveBr ak eAssi stcanno tal wa ys cle arly
ident ifyobje ctsand complextraf fic situ a‐
tions .
Ac tiveBr ak eAssi stisonl yan aid. Thedriver
is responsible formaint ainingasuf ficie ntly saf
edist anc eto theve hicle infront, vehicle
speed andforbr aking ingood time. #
Alw ayspa ycar eful attention tothetra f‐
fi c situ ation; donotre ly on ActiveBr ak e
Assi stalon e. #
Beprepar edtobrak eor sw erve ifnec ‐
essar y. Als
oob ser vethesy stem limits ofActiveBr ak e
Assi st.
The indiv idua lsub func tions areav ailab lein
va rious speed rang es:
The distance warning func tion canissue awa rn‐
ing inthefo llo wing situat ions:
R From appr oximat ely4 mp h(7 km/h), ifyo ur
ve hicle iscritically closetoave hicle, cyclis t
or pedes trian, youwill hear anintermit tent
wa rning tone and theL distance warning
lam plight sup intheins trument cluster.
Br ak eimme diat ely ortake evasiv eact ion,pr ov i‐
ded itis saf eto do soand thetra ffic situat ion
allo wsthis. Dis
tance warning funct ion(vehicles without
Dr iving Assistance Packag e)
The distance warning func tion canaidyouin the
fo llo wing situat ionswithan intermit tent wa rning
to ne and awa rning lam p:
R atspeeds uptoappr oximat ely15 5mp h
(250 km/h)when approaching vehicles
ahead
R atspeeds uptoappr oximat ely50 mph
(80 km/ h)when approaching statio naryve hi‐
cles, moving pedes trians andcyclis tsahead
R atspeeds uptoappr oximat ely37 mph
(60 km/ h)when approaching crossin g
cy clis ts
Dis tance warning funct ion(vehicles with
Dr iving Assistance Packag e)
The distance warning func tion canaidyouin the
fo llo wing situat ionswithan intermit tent wa rning
to ne and awa rning lam p:
R atspeeds uptoappr oximat ely15 5mp h
(250 km/h)when approaching vehicles
ahead Dr
iving andparking 17
9

#
Alw ayspa ycar eful attention tothetra f‐
fi c situ ation; donotre ly on Evasiv e
St eer ing Assis talone. #
Beprepar edtobrak eor sw erve ifnec ‐
essar y. #
End thesuppor tby act ivel yst eer ing in
non -critical situation s. #
Drive at an appr opriatespeed ifth er e
ar epedes trians close tothepat hof
yo ur vehicle. Sy
stem limit s
Fu llsy stem perform anc eis no tav ailable fora
fe w sec ond saf te rswitc hingontheignition or
af te rdr iving off.
If Ac tiveBr ak eAssi stisim pair edorinope rativ e
du eto amalf unction,the00C7 warning lam p
appear sin themultifunc tiondispla y.
The system maybe impair edorma yno tfunc ‐
tion ,par ticular lyin thefo llo wing situat ions:
R Insno w,rain, fog, hea vyspr ay,if th er eis
gl ar e, indir ect sunlight oringrea tly varying
ambien tlight . R
Ifth esensor sar edir ty,fo gg ed up, damag ed
or covered.
R Ifth esensor sar eim pair eddue tointerfer‐
ence from other radar sour ces, e.g.stro ng
ra dar reflect ions inpar king garage s.
R Ifaloss oftirepr essur eor afa ulty tirehas
been detected and displ ayed.
R Incom plextraf fic situ ations whereobject s
cann otalw aysbe clear lyidentif ied.
R Ifpedes trians orvehicles movequickl yint o
th esensor detection rang e.
R Ifpe destrians arehidde nby other object s.
R Ifth etypical outline ofapedes trian cann ot
be distinguished from thebac kground .
R Ifapedes trian isno tde tected assuch ,e.g.
due tospecial clothing orother object s.
R Ifth edr iver's seat beltisno tfa stened.
R Oncurveswit hatight radius.
% The ActiveBr ak eAssi stsensor sadjus taut o‐
matically whileacer tain dis tance isbe ing
dr iven afte rth eve hicle hasbeen delivered.
Ac tiveBr ak eAssi stisuna vailable oronl y par
tiall yav ailable during thete ac h-in proc‐
ess.
Se tting Activ eBr ak eAs sist
Multimedia system:
4 Vehicle 5
k Assist ance
5 Act ive Brak eAssist
The settings canbeadjus tedwhen theignition is
switc hedon. #
Select Early,Medium orLate.
% Your sele ction isretained when theve hicle is
ne xt star ted.
Deactiv atingActiv eBr ak eAs sist
% Itis recomme ndedthat youalw ayslea ve
Ac tiveBr ak eAssi stact ivat ed. #
Select Off.
The distance warning func tion andtheaut on‐
omous braking function aredeactiv ated.
Ve hicl eswithout Drivin gAss istanc ePa ck‐
ag e:When theve hicle isne xt star ted, the
mediu msetting isau tomatical lysele cted.
Ve hicl eswith Drivin gAss istanc ePa ck‐
ag e:Evasi ve Steer ing Assis tis no tav ailable. 18
2
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

Sy
stem limit s
The system limits forPa rking Assist
PA RK TRONI Cappl yto passiv eside impact pro‐
te ction.
The follo wing objectsar eno tde tected, forex am‐
ple:
R Pedes trians who approachth eve hicle from
th eside
R Objec tsplaced next to theve hicle
Ac tiv atin g/deac tivatin gPa rking Assis t
PA RK TRONI C
* NO
TERisk ofan acci dent from objects
at clo serang e Pa
rking AssistPA RK TRONI Cma yno tde tect
cer tain obje ctsat clos era ng e. #
Whe npa rking ormane uvering theve hi‐
cle, paypar ticular attention toany
obj ect swhic har eabo veorbelo wthe
sensor s,e.g. flowe rpo ts or draw bar s.
The vehicle orother object scould oth‐
er wise bedamag ed. #
Press theé buttoninthecent ercon sole.
If th eindicat orlam pin theé buttonisno tlit,
Pa rking AssistPA RK TRONI Cis act ive. Ifth eindi‐
cat orlam pis lit or theé symbol appearsin
th eins trument cluster,Pa rking Assist
PA RK TRONI Cis no tact ive.
% Parking AssistPA RK TRONI Cis aut omat ically
act ivat ed when theve hicle isstar ted.
Ad jus tingthe warning tones ofParking
Assis tPA RK TRONI C
Mu ltimed iasystem:
4 Vehicle 5
k Assist ance
5 Camera &Parkin g5
Set Warning Tones
Ad jus tingthe volum eof thewa rning tones #
Select Warning ToneVolume. #
Seta va lue.
Ad jus tingthe pitchof the warning tones #
Select Warning TonePitch.
Se ta va lue. Specif
yingthest ar ting pointfo rthe warning
to nes
Yo ucan spec ifywhe ther thePa rking Assist
PA RK TRONI Cwa rning tones should comm ence
wh en theve hicle isfur ther aw ay from anobs ta‐
cle . #
Sele ctWa rnEarl y. #
Activate0073 ordeacti vate 0053 thefunc tion.
Ac tiv atin g/deac tivatin gaudi ofa deo ut
Yo ucan spec ifywhe ther thevo lume ofamedia
sour ceinthemultimedia system isto be
re duced whenParking AssistPA RK TRONI Cgiv es
an audible warning. #
Selec tAudio Fadeout DuringWarn ingTon es. #
Activate0073 ordeacti vate 0053 thefunc tion. Ac
tiv ePa rking Assis t Fu
nction ofActiv ePa rking Assis t
Ac tivePa rking Assistis an elect ronic parking
assis tance system, whic huses ultrasound with
th eassis tance ofthere ar vie wcam eraand sur‐
ro und viewcam era. When youar edr ivin gfo r‐
wa rdsup toappr oximat ely22 mph(35 km/h), Dr
iving andparking 19
9

Take
Control ofVehicle messagepr om ptyouto
ta ke contr olof theve hicle.
The vehicle isno taut omatically brak ed and can
ro llaw ay.Yo uha ve toacc eler ate, brak e, steer
and chang ege ar yourself again. Ma
neuv ering assistance Fu
nction ofDrive Awa yAssis t
Dr ive Aw ayAssi stcan reduce these verity of an
impact when pulling away.If an obs tacle is
de tected inthedir ect ion oftrav el, theve hicle's
speed isbrief lyreduced toappr ox.1 mp h
(2 km/ h).Ifacr itic alsituat ionisde tected, the
00CB symbol appearsinthemedia display.
% Youcan cancelaninterve ntio nby Drive
Aw ayAssi stat anytim eby deactiv ating
Pa rking AssistPA RK TRONI C(/ page19 9). &
WARNIN GRisk ofacci dent caused by
limit eddetection perform anc eof Drive
Aw ayAssi st
Dr ive Aw ayAssi stcanno tal wa ys cle arly iden‐
tify obje ctsand traf fic situ ations. #
Alw ayspa ycar eful attention tothetra f‐
fi c situ ation; donotre ly on Drive Aw ay
Assi stalon e. #
Beprepar edtobrak eor sw erve as nec ‐
essar y,prov ided thetra ffic situat ion
per mitsand that itis saf eto take eva‐
siv eact ion. Dr
ive Aw ayAssi stisonl yan aid. Itis no ta sub‐
st itut efo ryo ur att entio nto thesur round ings.
The responsibili tyforsaf emaneu vering and
pa rking remains withyo u. Mak esur eth at no
per son s,anim alsorobj ect set c. arein the
maneu vering rang e.
A risk ofacollision mayar ise inthefo llo wing sit‐
uation s,forex am ple:
R Ifth eaccelera torand brak epeda lsareint er‐
ch ang ed.
R Ifan incorrect transm ission position is
eng aged.
Dr ive Aw ayAssi stisact ive under thefo llo wing
con dition s:
R IfPa rking AssistPA RK TRONI Cis act ivat ed. R
Ifyo ushif tth etra nsmiss ionposition to005E or
005B when theve hicle isstatio nary.
R Ifth ede tected obs tacle isless than appr ox.
3.3 ft(1.0 m) away.
R Ifth emaneuv ering assis tance func tionis
acti vatedin themultimedia system.
Sy stem limit s
The perform anc eof Drive Aw ayAssi stislimit ed
on inclines .
% Also obser vethesy stem limits ofParking
Ass istPA RK TRONI C(/ page19 6).
Fu nction ofCross Traf fic Aler t
% Cross Traf fic Aler tis only available forve hi‐
cles withBlind SpotAssis tor ActiveBli nd
Spo tAssi st.
Cr oss Traf fic Aler tcan warndriver sof anycr oss‐
ing traffic when backingup and mane uvering out
of apar kingspace. Theradar sensor sin the
bum peralso monit orthear ea adjacen tto the
ve hicle. Ifacr itical situation isde tected, the
L symbol appearsinthemedia displayand
th eve hicle canbebrak ed aut omatically . 20
4
Driving andparking