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

#
Toactiv atecr uise contr ol: press rock er
switc h2 up(SET +)or down (SET -).
The current spe edisstor ed and maint ained
by theve hicle.
or #
Press rock er switc h3 up(RES).
The lastst or ed speed iscalled upand main‐
ta ined bytheve hicle.
If th elas tst or ed speed hasprev iousl ybeen
dele ted, thecur rently driven spe edisstor ed.
% When youswit choffth eve hicle, thelas t
speed stor ed isclear ed. #
Toincr ease/r educespeed:pr ess rock er
switc h2 up(SET +)or down (SET -)to the
pr essur epoint .
The stor ed speed isincr eased orreduced by
1 mp h(1 km/h) .
or #
Press rock er switc h2 up(SET +)or down
(SET -)be yond thepr essur epoint .
The stor ed speed isincr eased orreduced by
5 mp h(1 0 km/h) .
or #
Accel erateth eve hicle tothedesir edspeed. #
Press rock er switc h2 up(SET +).
If cr uise control isactiv ated and Traf fic Sign
Assi sthas detected aspe edrestriction signwi th
a max imum permiss iblespee dand this isdis‐
pla yedin theins trument cluster,yo ucan choose
be tween thefo llo wing option s: #
Toadop tth ede tected spee d:press rock er
switc h3 up(RES).
The maximum permissible speedshownby
th etraf fic sig nis stor ed and theve hicle
maint ainsthis speed. #
Todeac tivatecr uis eco ntr ol:
pr ess rock er switc h3 down (CNCL). #
Todeac tivatecr uis eco ntr ol:pr ess rock er
switc h1 down.
% Ifyo ubr ak e, deac tivateES P®
or ifES P®
int erve nes, cruise contr olisde acti vated. Ac
tiv eDi stance AssistDI ST RO NIC Fu
nction ofActiv eDi stance Assist
DI ST RO NIC Ac
tiveDis tance AssistDIS TRONI Cma intains the
se tspeed onfree-f lowing roads. Ifve hicles in
fr ont arede tected, these tdis tance isma in‐
ta ined, ifnec essar y,unt ilth eve hicle comes toa
halt. Thevehicle acceler ates orbrak es depend‐
ing onthedis tance totheve hicle infront and
th ese tspeed. Thespeed anddistance tothe
ve hicle infront arese tand save don thesteer ing
wheel onvehicles without theDr iving Assistance
Pa ckag e, inthera ng ebe twee n15 mp h
(20 km/ h)and 120mp h(200 km/h) and,on Dr
iving andparking 18
3

ve
hicles withth eDr iving Assistance Packag e, in
th era ng ebe twee n15 mp h(20 km/h) and
13 0mp h(210 km/h) .
Ot her featur esofActiveDis tance Assist
DIS TRONI C:
R Adjus tsthedr iving style depending onthe
select eddrive pr ogr am (fuel efficie nt, com‐
fo rtable ordynam ic)(/ page15 1)
R Vehicl eswith Drivin gAss istanc ePa ck‐
ag e:react sto statio naryve hicles detected in
urb anspe edrang es (exc ep tbicy cles and
mo torcyc les).
R Initiates acc eler ation tothestor ed speed if
th etur nsignal indicat orisswitc hedonto
ch ang eto theove rtakin glane .
R Vehicl eswith Drivin gAss istanc ePa ck‐
ag e:take sone-sided overtaking restrictions
int oacco untonhighwaysor on multi-lane
ro ads withseparat ero adw ays(countr y-
dependen t).
Ve hicl eswith Activ ePa rking Assis tand Driv‐
ing Assis tance Packag e:ifth eve hicle is
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.
Ac tiveDis tance AssistDIS TRONI Cis only anaid.
The driver isresponsible forke eping asaf edis‐
ta nce totheve hicle infront, forve hicle speed
and forbr aking ingood time.
Sy stem limit s
The system maybe impair edorma yno tfunc tion
in thefo llo wing situat ions:
R Insno w,rain, fog, hea vyspr ay,if th er eis
gl ar e, indir ect sunlight oringreat lyvarying
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
traction andtheve 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
considera blyfaster or slo werth an the
cur rentl ydr iven spe ed.
R IfAc tiveDis tance AssistDIS TRONI Cno
lo ng er detects ave hicle infront ordoes
no tre act toreleva nt objects. 18
4
Driving and parking

#
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% ofthemaximum
possible deceleration.Ifth is decele ratio nis
no tsu fficien t,Ac tiveDis tance Assist
DIS TRONI Caler ts youwit havis ual and
aco ustic warning. #
Inthese cases, adjustyo ur spee dand
ke ep asuf ficie ntdist anc e. #
Brak eth eve hicle yourself and/or take
ev asiv eact ion. &
WARNIN GRisk ofacci dent ifde tection
functi onofActiveDis tan ceAssi st
DIS TRONI Cis impai red
Ac tiveDis tance AssistDIS TRONI Cdo es not
re act orhas alimit edreact ion:
R when drivin gon adif fere nt lane orwh en
ch ang inglane s
R topedes trians, animals, bicycles orsta‐
tio nar yve hicles, orune xpect edobs tacle s
R tocom plex traf fic condi tions
R tooncom ingvehicles andcrossing traf fic
As are sult, ActiveDis tance Assist
DIS TRONI Cma ynei ther giv ewa rnings nor
int erve ne insuch situations. #
Alw aysobser vethetra ffic con dition s
car efull yand react accordin gly. Oper
ating Activ eDi stance AssistDI ST RO NIC
Re quirement s:
R The vehicle hasbeen star ted.
R The elect ric pa rking brak eis released.
R ESP®
is act ivat ed and isno tint erve ning . R
The trans mis sion isin po sitio n005B.
R The driver' sdo or isclo sed .
R The checkof thera dar sensor system has
been success fullycom pleted(vehicle travel‐
ing faster than 12 mp h(2 0km/h))
R Parking AssistPA RK TRONI Cis no tbein g
used topar kth eve hicle ortoexitfrom a
par kingspace.
R The vehicle does notskid. Dr
iving andparking 18
5

#
Toactiv ate/ deacti vate Activ eDi stance
Ass istDI ST RO NIC :press button 1. #
Toactiv ateAc tiv eDi stance Assist
DI ST RO NIC :press rock er switc h3 up(SET
+) or down (SET -),or press rock er switc h4
up (RES). Remo veyour foot from theacceler‐
at or pedal.
The current spe edisstor ed and maint ained
by theve hicle. or #
Toactiv ateAc tiv eDi stance Assist
DI ST RO NIC with ast or ed speed :pr ess
ro ck er switc h4 up(RES). Remo veyour foot
fr om theacceler ator pedal.
% Bypressing rock er switc h4 upagain, the
speed limitation shownintheins trument
clus terwil lbe ado ptedby ActiveDis tance
Assi stDIS TRONI C. #
Toacc eptth edisp laye dspe edrestriction
when Activ eDi stance AssistDI ST RO NIC
is ac tiv e:press rock er switc h4 up(RES).
The speed limitdispla yedin theins trument
clus teris ado ptedas thestor ed speed. The
ve hicle adaptsits speed tothat oftheve hicle
in front, butonlyup tothestor ed speed. #
Topull away wit hAc tiv eDi stance Assist
DI ST RO NIC :re mo veyour foot from the
br ak epedal andactiv ateAc tiveDis tance
Assi stDIS TRONI C. #
Press rock er switc h4 up(RES).
or #
Depr esstheacceler ator pedal brief lyand
fi rm ly.
The funct ionsofActiveDis tance Assist
DIS TRONI Cconti nuetobe car ried out. &
WARNIN GRisk ofacci dent dueto Active
Dis tance AssistDIS TRONI Cstill being
act ivat ed when youlea vethedr iver's
seat
If yo ulea vethedr iver's seat while theve hicle
is being brak ed byActiveDis tance Assist
DIS TRONI Conly ,th eve hicle canrollaw ay. #
Alw aysdeactiv ateAc tiveDis tance
Assi stDIS TRONI Cand secur eth eve hi‐
cle topreve ntitfrom rolling away
bef oreyo ulea vethedr iver's seat. #
Todeac tivateAc tiv eDi stance Assist
DI ST RO NIC :press rock er switc h4 down
(CNCL). 18
6
Driving and parking

#
Toincr ease/r educespeed:pr ess rock er
switc h3 up(SET +)or down (SET -)to the
pr essur epoint .
The stor ed speed isincr eased orreduced by
1 mp h(1 km/h) .
or #
Press rock er switc h3 up(SET +)or down
(SET -)to thepr essur epoint andhold.
The stor ed speed isincr eased orreduced in
incr ement sof 1mp h(1 km/h).
or #
Press rock er switc h3 up(SET +)or down
(SET -)be yond thepr essur epoint .
The stor ed speed isincr eased orreduced by
5 mp h(1 0 km/h) .
or #
Press rock er switc h3 up(SET +)or down
(SET -)and hold beyond thepr essur epoint .
The stor ed speed isincr eased orreduced in
incr ement sof 5mp h(1 0 km/h). #
Toincr ease orreduce thespecified dis‐
tance from theve hicl ein front :pr ess
ro ck er switc h2 upordown. Fu
nction ofActiv eSpe edLimit Assist %
The follo wing function iscoun try- dependen t
and onlyav ailable incon junction withth e
Dr iving Assi stanc ePa ckag e. If
ach ang ein thespeed limitisde tected and
au tomatic adoptionofspeed limitsisactiv ated,
th ene wspeed isaut omaticall yadop tedas the
st or ed speed (/page220). The
driven speed isadjus tedwhen theve hicle is
le ve lwit hth etraf fic sig nat thelat est.In the
case ofsig ns indi cati ngentr yint oan urb anarea ,
th espeed isadap tedaccor dingtothespeed
per mitt edwithin theurban area. The speed limit
displa yin theIns trument Displayis alw aysupda ‐
te dwhen theve hicle isleve lwit hth etra ffic sign .
If th er eis no speed restriction onanunlimited
st re tchof road (e.g.on afree wa y), there com‐
mend edspe edisau tomatical lyadop tedas the
st or ed speed. Thesystem uses thespeed stor ed
on anunlimit edstre tchof road asthere com‐
mend edspe ed. Ifyo udo notalt er thestor ed
speed onanunlimit edstre tchof road, there c‐
omme ndedspeedis80 mph(1 30 km/h) .
If Ac tiveDis tance AssistDIS TRONI Cha sbe en
pu tint opa ssi ve mode bypressing theaccelera ‐
to rpeda l,onl yspee dlimi tswhi charehigh er
th an these tspeed areadop ted.
Ac tiveSpe edLimi tAssi stisonl yan aid. The
dr iver isresponsible forke eping asaf edis tance
fr om theve hicle infront, forve hicle speed and
fo rbr aking ingood time. Themaximu mper missi ‐
ble spee dals odepe ndsonfact or ssu ch asthe
ro ad sur face and traf fic condi tions. Dr
iving and parking 18
7

Sy
stem limit s
Te mp oraryspeed restrictions (e.g.fo ra cer tain
tim eor due towe ather condition s)can notbe
pr oper lyde tected bythesy stem. Themaximum
per missible speedapplying toave hicle witha
tr ailer isno tde tected bythesy stem. Inthese sit‐
uations youmus tadj ustyo ur spee dyo urself . &
WARNIN GRisk ofacci dent dueto Active
Spe edLimi tAssi stadap tingth eve hicle's
speed
The speed adoptedby ActiveSpe edLimi t
Assi stma ybe toohigh orincor rect insome
indi vidualcase s,su ch as:
R Inthewe tor infog
R When towing atrailer #
Ensur eth at thedr iven speed complies
wit htraf fic re gulations. #
Adjus tth edr iving speed tosuit current
tr af fic and weather condition s. Fu
nction ofrout e-base dspee dadap tation %
The follo wing function iscoun try- dependen t
and onlyav ailable incon junction withth e
Dr iving Assi stanc ePa ckag e.
When ActiveDis tance AssistDIS TRONI Cis acti ‐
va ted, theve hicle speed willbeadjus tedaccor d‐
ing lyto thero uteev ent sahead. Dependingon
th edr ive pr og ram sele cted, theve hicle negoti‐
at es aro uteeve ntaheadin afue l-saving, com ‐
fo rtable ordynam icman ner.When thero ute
eve nthasbe en passe d,theve hicle acceler ates
ag ain tothestor ed speed. Thesetdis tance to
th eve hicle infront, vehicles detected aheadand
spe edrestrictions aheadar eta ke nint oacco unt.
Ro ute-based speedadj ustm entcan beconfig‐
ur ed inthemultimedia system (/ page18 9).
Th efo llo wing routeeve nts areta ke nint o
acco unt:
R Bend s
R T-int ersect ions,tr af fic cir cle sand tollst a‐
tio ns
R Turnsand exits R
Traf fic jams ahead(only with Liv eTraf fic
( / pag e296))
% When theto llst atio nis reac hed, ActiveDis ‐
ta nce AssistDIS TRONI Cad op ts thespeed as
th estor ed speed.
Also, thespeed isreduced ifth etur nsignal indi‐
cat ortochang elane sis swit ched on and one of
th efo llo wing situat ionsisde tected:
R Turning offat intersect ions
R Drivin gon slowing- down lanes
R Drivin gon lanes adjacenttoslo wing-do wn
lanes
The driver isresponsible forch oosing theright
speed andobser vingother road user s.This
applies inpar ticular tointersect ions,traf fic cir‐
cle sand traf fic lights, asroute-based speed
adap tatio ndo es notbr ak eth eve hicle toast and‐
st ill.
When routeguidan ceisact ive, thefirs tsp ee d
ad jus tment iscar ried out automatic ally.If th e
tur nsigna lind icatoris swi tched on,theselect ed
ro uteis co nfirmed andfurther speed adjustment
is activ ated. 18
8
Driving and parking

Spee
dad jus tment iscance led in thefo llo wing
cases :
R Ifth etur nsignal indicat orisswitc hedoff
bef oreth ero uteev ent .
R Ifth edr iver depr esses theaccelera toror
br ak epeda ldur ing thepr ocess.
Sy stem limit s
Ro ute-based speedadap tatio ndo es nottak e
ri ght ofwa yre gulations intoaccount .The driver
is responsible forcom plying withro ad traf fic
re gulations anddriving atasuit able speed.
In dif ficul tcondi tions (e.g.uncl earro ads, lane
nar row ing, wetro ad sur faces, snowor ice )or
whe ndr ivi ng with atrailer ,th espeed adjustment
made bythesy stem mayno talw aysbe suit able.
In these situation sth edr iver mus tint erve ne
acco rding ly. &
WARNIN GRisk ofacci dent inspi teof
ro ute-based speedadj ustm ent
Ro ute-based speedadj ustm entmigh tmal‐
fun ction orbe temp orarily una vailable inthe
fo llo wing situat ions: R
Ifmap datais no tup todat eor available
R Ifyo udo notfo llo wtheselect edroute
guidan ce
R Ifth ese tro uteis re-pl anne d
R Inroad con stru ction area s
R Whe nto wing atrailer
R Inbad weather orroad con dition s
R Ifth eaccelera torpeda lis depr essed #
Adjus tth espeed tothetraf fic situ ation. Se
tting rout e-base dspee dadjus tment Re
quirement s:
R ActiveDis tance AssistDIS TRONI Cis acti va‐
te d.
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
% The follo wing function iscoun try- dependen t
and onlyav ailable incon junction withth e
Dr iving Assi stanc ePa ckag e.
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 toform are scue lane,
fo rex am ple.
When thesy stem isactiv elysteer ing, theà
symbol issho wningreen inthemultifunc tion
displa y.
If th ede tection oflane mar kings andvehicles
ahead isim pair ed,ActiveSt eer ing Assis t Dr
iving andparking 18
9

switc
hestopassiv emode. Thesystem prov ides
no suppor tin this case. During thetra nsit ion
fr om activ eto passiv est atus ,th eà symbol is
sho wnasenlar gedand flashin g.On ce thesy s‐
te m ispass ive, theà symbol issho wnas
gr ay inthemultifunc tiondispla y.
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, anoptical warning isgiv en firs t. Dis ‐
pl ay 1 appear sin themultifunc tiondispla y.If
th edr iver still does notst eer theve hicle, or
giv es no conf irmation tothesy stem, awa rning
to ne sou nds inad ditio nto thevisual warning
mess age.
The warning isno tissued, orisstopped, when
th edr iver giv es con firm atio nto thesy stem:
R The driver steer sth eve hicle.
R The driver presses ast eer ing wheel buttonor
oper ates Touc 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.
Ac tiveSt eer ing Assis tis onl yan aid. Thedriver is
re sponsible forth edis tance totheve hicle in
fr ont, forve hicle speed, forbr aking ingood time
and forst ay ing inlane. Beforech ang inglane s,
th edr iver mus tmak esur eth at theneighbor ing
lane isfree (glance overth eshoulder). 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 instan ces:
R The reispoor visibilit y,e.g. due tosno w,rain,
fo g, hea vyspr ay,gr ea tly varying ambien t
light orstro ng sha dows onthero adw ay.
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 thevicin ityofthecamer 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, e.g. inacon stru ction area orinter‐
secti ons.
R The lane mar kings arewo rnaw ay,dar kor
co veredup, e.g. bydirtor sno w. 19
0
Driving and parking