MERCEDES-BENZ C-CLASS CABRIOLET 2020 Owner's Manual

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 awa rning isgiv en intheIns trument Display,
th emultimedia system offers to sear chfora re st
ar ea. Youcan selectare st area and star tna vig a‐ tio
nto this rest area. This function can beact iva‐
te dand deactiv ated inthemultimedia system.
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
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(200 km/h) speedrang e.
The func tional ity ofATTENTION ASSISTis
re strict ed, and warnings maybe dela yedor not
occ uratall inthefo llo wing situat ions:
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 Inacti vedriving situation s,ifyo uch ang e
lane sand vary your spee dfreq uen tly.
The ATTENTION ASSISTtir edness oraler tness
assessment isdele tedand restar tedwhen con‐
tin uing 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.chang ingdriver sor taking
a br ea k).
Se ttin gAT TENTI ONASSIST
Multimedia system:
4 Vehicle 5
k Assist ance
5 ATTE NTION ASSIS T
Se tting options #
Select Standard, Sensitive orOff.
Sugg esting are st area #
Select SuggestRes tArea. Dr
iving andparking 209

#
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. Tr
af fic Sign Assis t Fu
nction ofTraf fic Sign Assis t Tr
af fic Sign Assistdetects traf fic sig ns with mul‐
tifunction camera1. Itassi stsyo uby displa y‐
ing detected spe edlimits andovertakin gre stric‐ tions
intheins trument clusterand optionally in
th ehead-up displayor cent raldispla y.
Since Traf fic Sign Assistalso uses thedat a
st or ed inthena vig ation system, itcan updat e
th edispla yin thefo llo wing situat ionswithout
de tecting traf fic sig ns:
R Whe nth eve hicle chang esroads, e.g.on a
high wayen try or exitro ad.
R When avillag eor cityboun darywhic his
st or ed inthedigit almap ispassed.
The camer aalso detects traf fic sig ns with a
re striction indicatedbyan addit ionalsign (e.g.in
we tcond itions ).
Tr af fic Sign Assistisonl yan aid. Thedriver is
re sponsible forke eping asaf edis tance from the
ve hicle infront, forve hicle speed andforbr aking
in good time.
Wa rning when thema xim um permis sible
speed isexc eeded
The system can warnyouif yo uunin tentio nally
exc eed themaximum permissible speed.Todo
th is, youcan spec ifyinthemultimedia system
by howmuc hth emaximum permissible speed can
beexc eeded beforeawa rning isissued. You
can specify whether thewa rning isto be justa
visual warning oran acous ticone aswell.
Displa yin theIns trum ent Displa y In
stru ment Displa yin theWi descr eenCockpit
1 Perm issible speed
2 Perm issible speedwhenther eis are striction
3 Addition alsign withre striction 21
0
Driving and parking

%
Ve
hicl eswith ast andar dIns trument Dis‐
pla y:a+ symbo lne xt to atraf fic sig nin the
Ins trument Displayindicat esthat addit ional
traf fic sig ns have been detected. Thesecan
al so be displ ayed inthemedia displayand
op tion ally inthehead-up display. Tr
af fic Sign Assistisno tav ailable inall coun ‐
tr ies. Ifit is una vailable, display1 issho wnin
th espeedome ter. Sy
stem limit s
The system maybe impair edorma yno tfunc tion
in 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
highl yva riable shade condition sor inrain,
sno w,fogor hea vyspr ay.
R Ifth er eis glar e, e.g .fr om oncom ingtraf fic,
di re ct sunli ght orreflect ions.
R Ifth ewindshield inthear ea ofthemultifunc ‐
tion camer ais dir ty,or ifth ecamer ais fog‐
ge dup, damag edorcovered.
R Ifth etra ffic sign sar ehar dto detect, e.g. due
to dir tor sno w,orbecause they areco vered
or due toinsuf ficie ntlighti ng.
R Ifth einf ormation inthena vig ation system's
digit almap isincor rect or out-of-da te.
R Ifth esigns areambiguous, e.g.traf fic sig ns
on cons tructi onsites orinad jacent lanes.
R Ifyo utur nshar ply, when passin gtraf fic sig ns
ou tsid eth ecamer a'sfield ofvision.
Se tting Traf fic Sign Assis t
Re quirement s: R
Foraut omat icado ption ofspeed limits:
Ac tiveDis tance AssistDIS TRONI Cis acti va‐
te d.
Multimedia system:
4 Vehicle 5
k Assist ance
5 Traffic SignAssist
Ac tiv atin g/deac tivatin gaut omati cadop tion
of spe edlimits #
Select LimitAdo ption. #
Activate0073 ordeacti vate 0053 thefunc tion.
The speed limitsdetected byTraf fic Sign
Assi stareaut omat icallyadop tedby Active
Dis tance AssistDIS TRONI C.
Di spl aying detected traf fic signs inthe
med iadis pla y #
Select Display inCOMA ND. #
Activate0073 ordeacti vate 0053 thefunc tion.
% Ifone ofthefo llo wing systems isactiv ated,
th espeed detected can bemanu ally ad op ted
as thespeed limit:
R ActiveDis tance AssistDIS TRONI C Dr
iving and parking 21
1

R
Cruise contro l
Fu rther information (/page17 6).
Ad jus tingthe type ofwa rning #
Selec tVisual &Audible ,Visual orNon e.
Ad jus tingthe warning threshold
This value determ ines thespeed atwhic ha
wa rning isissued whenexceeded. #
Select Warning Threshold. #
Setth edesir edspeed. Blind
SpotAssis tand 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.
If ave hicle isde tected clos eto theside ofyour
ve hicle, there dwa rning lam pin theoutside mir‐
ro rflashes .If yo uswit chon thetur nsignal indi‐
cat orinthecor responding direction, awa rning
to ne sou nds once .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.
As are sult, Blind SpotAssis tcanno twa rn
dr iver sin this situat ion. #
Alw ayspa ycar eful attention tothetra f‐
fi c situ ation and maintain asaf edis‐
ta nce attheside oftheve hicle. Blind
SpotAssis tand ActiveBli nd Spo tAssi st
ar eon lyaids. Theyma yfa ilto detect some vehi‐
cles andareno subs titutefo ratt entiv edr iving.
Alw aysensur eth at ther eis suf ficie ntdist anc eto
th eside forot her road user sand obstacle s.
Exi twa 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 react snei ther tostatio nary
obj ect sno rto vehicles approaching youat a
gr eat lydif fere nt spe ed.
As are sult, theex itwa rning cannotwa rn
dr iver sin these situation s. #
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 . 21
2
Driving and parking

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 ivat ed and uptoamax i‐
mum ofthre eminut esafte rth eignition has
been switchedoff.The exitwa rning isno long er
av ailable once thewa rning lam pin theoutside
mir rorflashes 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:
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 solidlanebor‐
der s.Alw aysmak esur eth at ther eis suf ficie nt
di st anc eto theside forot her traf fic or obs ta‐
cle 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 Intheev ent ofstatio naryor slo wlymo ving
obj ect s Fu
nction ofbrak eapp lication (Activ eBlind
Spo tAssis t)
% The brak eapplication functionisonl yav aila‐
ble forve hicles withaDr iving Assistance
Pa ckag e.
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(30 km/h) and125mp h(200 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 eve ntacol lisi on. #
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. Dr
iving andparking 21
3

#
Alw aysmaint ainasaf edis tance atthe
sides. &
WARNIN GRisk ofacci dent despite
Ac tiveBli nd Spo tAssi st
Ac tiveBli nd Spo tAssi stdoes notre act tothe
fo llo wing:
R Ifve hicles overtak eto oclosel yon the
side, placing them intheblind spotar ea
R Vehicles approaching andovertakin gyo u
at agr ea tly differ ent speed
As are sult, ActiveBli nd Spo tAssi stma ynei‐
th er giv ewa rnings norinterve ne insuch sit‐
uations. #
Alw ayspa ycar eful attention tothetra f‐
fi c situ ation and maintain asaf edis‐
ta nce attheside oftheve hicle. 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
Eit her acour se-cor recting brak eap plica tion
ap propr iate to 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 tooclosely ontheside.
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. 21
4
Driving and parking

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 ofmultifu nction
camer a1. Itser vesto protect youag ains tunin ‐
te ntio nallylea vingyo ur lane .Yo uwill bewarned
by vibr ation pulses inthesteer ing wheel andgui‐
ded byacour se-cor recting brak eap plica tion
ba ck intoyo ur lane .
Yo uar ewa rned byvibr ation pulses inthesteer‐
ing wheel inthefo llo wing circums tances:
R ActiveLa ne Keeping Assistde tects alane
mar king. R
Afront whe eldrives ove rth is lane marking.
Yo uwill also beguided backint oyo ur lane by
means ofacour se-cor recting brak eap plica tion
if th efo llo wing condition sar eme t:
R ActiveLa ne Keeping Assistde tects lane
mar kings onboth edg esofthelane.
R Afront wheel drives over asolid lanemark‐
ing.
Yo ucan activat eor deac tivateth eAc tiveLa ne
Ke eping Assistwa rning.
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
condi tions.Ac tiveLa ne Keeping Assistis onl yan
aid. Youar ere sponsible forth edis tance tothe
ve hicle infront, forve hicle speed, forbr aking in
good timeandforst ay ing inyour lane .
Ve hicl eswith Drivin gAss istanc epac kage or
Dr iving Assistance Pluspackag e:Ac tiveLa ne
Ke eping Assistcan bring theve hicle backint o
th elane withalane-c orrecting brak eap plica tion.
In thecase ofabr ok en lane marking being de
tected, abr ak eap plica tion willonly bemad eif
a ve hicle hasbeen detected intheadjacen tlane.
Onc oming vehicles, overtakin gve hicles andvehi‐
cles inadjacent lanescanbedetected.
Ac tiveLa ne Keeping Assistis available inthe
speed rang ebe twee n37 mph(60 km/h) and
12 4mp h(200 km/h). If
alane-cor recting brak eap plica tion occu rs,dis‐
pla y1 appear sin themultifunc tiondispla y. Dr
iving and parking 21
5

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 Youha ve switc hedonthetur nsignal indica‐
to r(situ ation-dep endent).
R Adr 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 tirehas
been detected and displ ayed.
The system maybe impair edorma yno tfunc tion
in 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
highl yva riable shade condition sor inrain,
sno w,fogor hea vyspr ay. R
Ifth er eis glar e, e.g .fr om oncom ingtraf fic,
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 markings ,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 totheve hicle infront istoo
shor tand thus thelane markings cannotbe
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 adw ayisvery nar row and wind ing.
Ve hicl eswithout Drivin gAss istanc ePa ck‐
ag eor Drivi ng Ass istan cePlus Packag e:
Ac tiveLa ne Keeping Assistuses radar sensor s
to monit orseveralar eas around theve hicle. If
th era dar sensor sin there ar bum peraredir tyor
co veredwit hsno w,thesy stem maybe impair ed or
ma yno tfunc tion.If an obs tacle inthelane in
whic hyo uar edr ivin ghas been detected, no
la ne-cor recting brak eap plica tion occu rs.
Ac tiv atin g/deac tivatin gAc tiv eLan eKe eping
Assis t(v ehicles withPa rking Assis t
PA RK TRONI C) &
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.In very rare
case s,thesy stem maymak ean inappr opri‐ 21
6
Driving and parking

at
ebr ak eapplic ation,e.g .af te rint entional ly
dr iving overa soli dlane marking.
The brak eapp lication canbeinterru pte dat
an ytime ifyo usteer slightl yin theopposit e
dir 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
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 gthe sens itivity of Activ eLan eKe ep‐
ing Assis t
Multi media system:
4 Vehicle 5
k Assist ance
5 Act .Lane Keep. Assist #
Select ase tting.
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. Ve
hicl eto wing instruct ions
The vehicle isno tsuit able forth euse oftow bar
sy stems that areused forflat towing ording hy
to wing, forex am ple. Attach ing and using tow bar
sy stems canlead todamag eon theve hicle.
When youar eto wing ave hicle withto w bar sys‐
te ms, safedr iving charact eristic scan notbe
guar anteed forth eto wing vehicle ortheto we d
ve hicle. Thevehicle-tr ailercombination may
sw erve from side toside. Complywithth eper‐ Dr
iving andparking 217

mitt
edtowing methods (/page37 9) andth e
ins truct ions forto wing withbo th axle son the
gr ou nd (/ page 381). 21
8
Driving and parking