2021 MERCEDES-BENZ C CLASS warning

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

-
React sto statio naryve hicles detected in
urb anspe edrang es (exc ep tbicy cles and
mo torcyc les)
- Take sone-sided overtakin gre strictions
int oacco untonhighwaysor on multi-lane
ro ads withsepar atero adw ays(countr y-
dependen t)
Ve hicl eswith Drivin gAss istanc ePa ckag e
and Parking Packag e:ifth eve hicle hasbeen
br ak ed toast ands tillon mult i-lane,separat e
ro adw aysby ActiveDis tance AssistDIS TRONI C,
it can automatical lyfollo wtheve hicle infront
dr iving offag ain within 30seconds. Ifacr itical
situation isde tected whe ndr ivi ng off,avis ual
and acoustic warning isgiv en indic atingth at the
dr iver mus tno wtake contr olof theve hicle. The
ve hicle isno tacceler ated anyfur ther.
Obser vetheno teson driving systems andyour
re sponsibili ty;yo uma yot her wise failto recog‐
nize dangers(/ page 158). Ac
tiv eDi stance AssistDI ST RO NIC displa ysin
th eins trum ent clus ter Assi
stanc edispla y
1 Route-based speedadap tatio n:typ eof route
eve nt(/ page 172)
2 Vehicle infront
3 Distance indicator
4 Setspe cified dist anc e
5 ActiveLa ne Chang eAssi stlane chang edis‐
pla y Pe
rm anen tst atus displa yof Activ eDi stance
Ass istDI ST RO NIC
R k (white ):Ac tiveDis tance Assist
DIS TRONI Csel ect ed,sp eci fied distance set
R k (white vehicle, green speedome ter):
Ac tiveDis tance AssistDIS TRONI Cacti ve,
specif ieddistance setand vehicle detected
R k (green) :Ac tiveDis tance Assist
DIS TRONI Cacti ve,specif ieddistance setand
ve hicle detected
R r: Route-based speedadap tatio nacti ve
( / pag e17 2).
The stor ed speed issho wnalong withth eper‐
manen tst atus displa yand highlight edon the
speedome ter.When ActiveDis tance Assist
DIS TRONI Cis pa ssi ve,th espeed isgray ed out.
% Onhighw aysor high-speed major roads, the
gr een ç vehicle symbol isdispla yedcy cli‐
cally when theve hicle isready topull away. 16
8
Driving and parking

%
Ifyo udepr esstheacceler ator pedal beyond
th ese tting oftheAc tiveDis tance Assist
DIS TRONI C,thesy stem isswitc hedtopas‐
siv emode. Theç Suspende dmessag e
appear sin themultifunc tiondispla y.
Disp layon thespeed ometer
The stor ed speed ishighlight edon thespeedom‐
et er.If th espeed oftheve hicle infront orthe
speed adjustment isless than thestor ed speed
due tothero uteeve ntahead, thesegment sin
th espeedome terlig ht up. Deactiv ationofActive
Dis tance AssistDIS TRONI C,as wellas altera‐
tion sto thespeed duetomanua lor automatic
adop tionofthemaximum permissible speed,are
displa yedin thecon trol feedbac kof themulti‐
func tion displa yon asing leline.
Sy stem limit s
The system maybe impair edorma yno tfunc tion
in thefo llo wing situat ions,fo rex am ple:
R Insnow ,ra in, fog, hea vyspr ay,if th er eis
gl ar e, indir ect sunlight oringrea tly varying
ambien tlight . R
The windsh ieldinthear ea ofthecamer ais
dir ty,fo gg ed up, damag edorcovered.
R Ifth era dar sensor sar edir tyor covered.
R Inpar kingga rage sor on roads withsteep
uphill ordownhill gradients.
R Ifth er ear enar row vehicles infront, suchas
bicy cles ormo torcyc les.
In addition ,on slipper yro ads, brakin gor acc el‐
er atin gcan caus eon eor severalwheels tolose
tr act ion and theve hicle could then skid.
Do notuse ActiveDis tance AssistDIS TRONI Cin
th ese situation s. &
WARNIN GRisk ofacci dent from acce ler‐
ati on orbraki ng byActiveDis tance
Assi stDIS TRONI C
Ac tiveDis tance AssistDIS TRONI Cma yacc el‐
er ateor brak ein thefo llo wing cases ,fo r
ex am ple:
R Ifth eve hicle pullsaway usin gAc tiveDis ‐
ta nce AssistDIS TRONI C. R
Ifth estor ed speed iscalled upand is
consider ablyfa ster or slo werth an the
cur rently driven spe ed.
R IfAc tiveDis tance AssistDIS TRONI Cno
lo ng er detects ave hicle infront ordoes
no tre act toreleva nt objects. #
Alw ayscar efully observethetraf fic con‐
di tions andbeready tobrak eat all
times. #
Take intoacc ount thetra ffic situat ion
bef orecallin gup thestor ed speed. &
WARNIN GRisk ofacci dent dueto insuf ‐
fi cie ntdece lera tio nby ActiveDis tance
Assi stDIS TRONI C
Ac tiveDis tance AssistDIS TRONI Cbrak es
yo ur vehicle withup to50% ofthepossible
deceler ation.Ifth is decele ratio nis no tsu ffi‐
cien t,Ac tiveDis tance AssistDIS TRONI C
al er ts youwit havis ual and acoustic warning. #
Adjus tyo ur spee dand main tain asuit a‐
ble distance from theve hicle infront. Dr
iving andparking 16
9

Multimedia
system:
4 Vehicle 5
k Assist ance
5 Speed Adjustmen t #
Activate0073 ordeacti vate 0053 thefunc tion. Ac
tiv eSte ering Assis t Fu
nction ofActiv eSte ering Assis t
Ac tiveSt eer ing Assis tis onl yav ailable uptoa
speed of130mp h(210 km/h) .The system helps
yo uto stay inthecent erofthelane bymeans of
moder atesteer ing interve ntio ns.Dep endingon
th espeed driven, ActiveSt eer ing Assis tuses the
ve hicles ahead andlane markings asare fer‐
ence.
% Dependi ngon thecount ry,in thelowe r
speed rang eAc tiveSt eer ing Assis tcan use
th esur round ingtraf fic as are fere nce. Ifnec‐
ess ary, Ac tiveSt eer ing Assis tcan then also
pr ov ide assis tance when drivi ng away from
th ecent erofthelane, forex am ple, toform a
re scue lane.
If th ede tection oflane mar kings andvehicles
ahead isim pair ed,ActiveSt eer ing Assis t switc
hestopassiv emode. Thesystem prov ides
no suppor tin this case.
St atus displa yof Activ eSte ering Assis tin
th emu ltifunct iondisp lay
R Ø (gra y): act ivat ed and pass ive
R Ø (gre en): activ ated and activ e
R Ø (red): system limits detected
R Ø (whit e,redhands): "handsonthesteer‐
ing wheel" prom pt
% During thetransition from activ eto passiv e
st atus ,th eØ symbol issho wnas
enlar gedand flashin g.On ce thesy stem is
passiv e,theØ symbol issho wnasgray in
th emultifunc tiondispla y.
% Dep endingontheselect edvehicle settin gs,
Ac tiveSt eer ing Assis tma ybe una vailable.
Ste ering and touc hde tection
The driver isrequ ired tokeep their hands onthe
st eer ing wheel atall times andbeable tointer‐
ve ne atanytime tocor rect thecour seofthe
ve hicle andkeep itin lane. Thedriver mus t
ex pect ach ang efrom active to passiv emode or
vice versaat anytim e. If
th esy stem detects that thedr iver has not
st eer edtheve hicle fora consider ableper iod of
time orhas remo vedth eir hands from thesteer‐
ing wheel, display1 appear s.Ifth edr iver still
does notst eer theve hicle, awa rning tone
sou nds inad ditio nto thevisual warning mes‐
sag e.
If th edr iver does notre act tothewa rning fora
consider ableper iod, thesy stem can initiat ean
emer gency stop (/ page17 6).
Th ewa rning isno tissued orisstopped whenthe
dr iver giv es con firm atio nto thesy stem:
R The driver steer sth eve hicle. 17
4
Driving and parking

R
Depe nding onthecount ry:th edr iver
pr esses ast eer ing wheel buttonoroper ates
To uc hCon trol
If Ac tiveSt eer ing Assis tde tects that asy stem
limit hasbeen reac hed, avisual warning is
issued andawa rning tone sou nds.
Obs erve theno teson driving systems andyour
re sponsibili ty;yo uma yot her wise failto recog‐
nize dangers(/ page 158).
Sy stem limit s
Ac tiveSt eer ing Assis thas alimit edsteer ing tor‐
qu efo rlat eral gui dance. Insome cases, the
st eer ing interve ntio nis no tsu fficien tto keep the
ve hicle inthelane ortodrive th ro ugh exits.
The system maybe impair edorma yno tfunc tion
in thefo llo wing instances:
R The reispoor visibilit y,e.g. due tosno w,rain,
fo g, hea vyspr ay,gr eatl yva rying ambien t
light orstro ng sha dows onthero ad.
R Ther eis glar e, e.g .fr om oncom ingtraf fic,
di re ct sunli ght orreflect ions.
R Insuf ficie ntroad illumin ation. R
The wind shieldisdir ty,fo gg ed up, damag ed
or coveredin thevicinit yof thecamer a,e.g.
by ast icke r.
R No, orseveral,unc lear lane markingsare
pr esen tfo rone lane, orthemar king sch ang e
qu ickl y, forex am ple, inacon stru ction area
or atintersecti ons.
R The lane mar kings arewo rnaw ay,dar kor
co veredup, e.g. bydirtor sno w.
R Ifth edis tance totheve hicle infront istoo
shor tand thus thelane markings cannotbe
de tected.
R The road isnar row and windin g.
R Ther ear eobs tacle son thelane orprojec ting
out intoth elane, suchas objec tmar kers.
The system does notpr ov ide assis tance inthe
fo llo wing condition s:
R Ontigh tcur vesand when turning.
R When crossing intersections.
R Atround about sor tollplazas.
R When thetir epr essur eis toolow. &
WARNIN GRisk ofacci dent ifAc tive
St eer ing Assis tune xpect edlystops func‐
tionin g
If th esy stem limits ofActiveSt eer ing Assis t
ar ere ac hed ther eis no guar anteethat the
sy stem will remain activeor wil lke ep the
ve hicle inlane. #
Alw ayske ep your han dson thesteer ing
wheel andobser vethetra ffic car efull y. #
Alw aysst eer theve hicle paying atten‐
tion totraf fic condi tions. &
WARNIN GRisk ofacci dent ifAc tive
St eer ing Assis tune xpect edlyinterve nes
The detection oflane mar kings andobje cts
ma ymal functi onand causeune xpect ed
st eer ing interve ntio ns. #
Steer accor dingtotraf fic condi tions. Ac
tiv atin gAc tiv eSte ering Assis t
Re quirement s:
R ESP®
mus tbe act ivat ed, but notint erve ning . Dr
iving and parking 17
5

#
Alw aysmonit orthelane chang eand
ke ep your han dson thesteer ing wheel.
Obser vethetra ffic con dition sand steer
and/or brak eif neces sary. Sy
stem limit s
The system limit ations ofActiveSt eer ing Assis t
apply toActiveLa ne Chang eAssi st
( / pag e17 4).
The system mayalso beimpair edorma yno t
func tion inthefo llo wing situat ions:
R The sensorsin there ar bum peraredir ty,
damag edorcoveredby ast icke ror ice and
sno w,forex am ple.
R The exterior lighting showsamalf unction.
% The ActiveLa ne Chang eAssi stsensor s
adjus taut omaticall ywhile acer tain dis tance
is be ing driven afte rth eve hicle hasbeen
deliv ered. ActiveLa ne Chang eAssi stis
una vailable oronl ypar tiall yav ailable during
th is teac h-in proce ss;noarro w appear sne xt
to theØ ActiveSt eer ing Assis tsymbol
when thetur nsignal indicat orisactiv ated. Ac
tiv atin g/deac tivatin gAc tiv eLan eCha nge
As sist
Multimedia system:
4 Vehicle 5
k Assist ance #
Select LaneChange Assist. #
Activate0073 ordeacti vate 0053 thefunc tion. Ac
tiv eBr ak eAs sist Fu
nction ofActiv eBr ak eAs sist
Ac tiveBr ak eAssi stconsi stsof thefo llo wing
func tions:
R Distance warning func tion
R Autonomo usbraki ng func tion
R Situ ation-d epend ent braki ng assist anc e
R Vehicl eswith Drivin gAss istanc ePa ck‐
ag e:Evasi ve Steer ing Assis tand corner ing
func tion
Ac tiveBr ak eAssi stcan helpyo uto minimize the
ri sk ofacollision withve hicles, cyclis tsor
pedes trians ortoreduce theef fects ofsuch a
coll ision. If
Ac tiveBr ak eAssi sthas detected arisk ofcolli‐
sion, awa rning tone sou nds and theL dis‐
ta nce warning lam plight sup intheins trument
clus ter.
If yo udo notre act tothewa rning, autono mous
br akin gcan beinit iated incritic alsituat ions.
In espec iallycritic alsituat ions,Ac tiveBr ak e
Assi stcan initia te aut onomo usbrakin gdir ect ly.
In this case, thewa rning lam pand warning tone
occu rsi mu ltane ously with thebr aking applica‐
tion .
If yo uappl yth ebr ak eyo urself inacr itical situa‐
tio nor appl yth ebr ak edur ing autonomous brak‐
ing, situation -dependen tbr aking assistance
occu rs.The brak epr ess ureincr eases uptomax‐
imum full-sto pbr aking ifnec essar y.
Obser vetheno teson driving systems andyour
re sponsibili ty;yo uma yot her wise failto recog‐
nize dangers(/ page 158). 17
8
Driving and parking

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