2019 MERCEDES-BENZ C-CLASS SEDAN sensor

Fu
nction ofthera dar senso rs Some
drivi ng and drivi ng safety systems use
ra dar sensor sto monit orthear ea infront of,
behind ornext to theve hicle (depending onthe
ve hicle's equipment).
Depending ontheve hicle's equipment, thera dar
sensor sar eint egr ated behind thebum pers
and/or behindtheMer cedes star.Ke ep these
par tsfree ofdir t,ice and slush
(0013 page36 4). The sensor smus tno tbe cov‐
er ed, forex am ple bycycle rack s, overhanging
loads, sticke rs,fo ilor foils toprotect agains t
st one chipping .In theeve ntofdama getothe
bum persor radiat orgrill, orfollo wing acollis ion
im pact ingthebum persor radiat orgrill, have the
function ofthera dar sensor sch eckedat aqu ali‐
fi ed specialis two rkshop. Thedriver assis tance
sy stem mayno long erwo rkproper ly. Ov
ervie wof driving systems anddriving
saf etysy stems In
this sect ion, youwill find informa tionab ou t
th efo llo wing drivin gsy stems anddriving safety
sy stems:
R 360° Camer a(0013 page206)
R ABS (Anti-loc kBra king System)
(0013 page17 1)
R ActiveDis tance AssistDIS TRONI C
(0013 page 183)
R AIRMATIC (0013 page 197)
R ActiveBr ak eAssi st(0013 page17 5)
R ActiveLa ne Keeping Assist(0013 page222)
R ATTENTION ASSIST(0013 page21 5)
R BAS(Brak eAssis tSys tem) (0013 page17 2)
R Hill StartAs sis t(0013 page19 5)
R DYNA MIC BODY CONTR OL(0013 page19 6)
R EBD (El ectr onicBra keforc eDis tribution)
(0013 page17 5)
R ESP ®
(E lectr oni cSta bility Program)
(0013 page17 2) R
ActiveSpe edLimi tAssi st(0013 page18 7)
R HOLD functio n(0013 page 195)
R STEER CONTR OL(0013 page 175)
R ActiveSt eer ing Assis t(0013 page18 9)
R ActivePa rking Assist(0013 page209)
R Parking AssistPA RK TRONI C
(0013 page20 0)
R Rear vie wcam era(0013 page20 4)
R Cruise control (0013 page18 1)
R Functio nof Blind Spo tAssi stand ActiveBli nd
Spo tAssi stwit hex itwa rning
(0013 page21 9)
R Traf fic Sign Assist(0013 page21 7) Fu
nction ofABS (Anti-loc kBr aking System) AB
Sre gulat esthebr ak epr essur ein critical driv‐
ing situation s:
R Dur ing braking, e.g.atfull brak eapplication
or insuf ficie nttiretracti on, thewheels are
pr eve nted from lock ing.
R Vehicle steer ability whilebraking isensur ed. Dr
iving andparking 17
1

R
Assi stanc eth ro ugh powe r-assis tedsteer ing if
it de tects asw erving mane uver.
R Activati on byan abr uptst eer ing movement
dur ing asw erving maneu ver.
R Assi stanc edur ing swervin gand stra ight enin g
of theve hicle.
R React ion from aspee dof appr oximat ely
12 mp h(20 km/h) uptoaspee dof appr ox‐
imat ely43 mph(70 km/h).
Yo ucan preve nttheassis tance atanytime by
act ivel yst eer ing. 000A
WARNIN GRisk ofan acci dent despite
Ev asive St eer ing Assis t
Ev asiv eSt eer ing Assis tcann otalw aysclear ly
ident ifyobje ctsand complextraf fic situ a‐
tions .
In addition, thesteer ing suppor tof Evasiv e
St eer ing Assis tis ge ner ally no tsu fficien tto
av oid acollision. In
suc hcases Evasiv eSt eer ing Assis tcan:
R givean unnec essarywa rning orprov ide
assis tance
R notgi ve awa rning ornotpr ov ide assis‐
ta nce 0007
Alw ayspa ycar eful attention tothetra f‐
fi c situ ation; donotre ly on Evasiv e
St eer ing Assis talone. 0007
Beready tobrak eand take evasiv e
act ion ifnec essar y. 0007
Preve nttheassis tance byact ivel yst eer‐
ing innon -critical driving situation s. 0007
Drive at an appr opriatespeed ifpedes‐
tr ians areclose tothepat hof your vehi‐
cle. Sy
stem limita tions
Fu llsy stem perform anc eis no tav ailable fora
fe w sec ond saf te rswi tching ontheignition or
af te rdr iving off. 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 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 adef ectiv etir e
has been detected and displ aye d.
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 objects .
R Onbends withatight radius. 18
0
Driving and parking

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-sa ving,comfort‐
able ordynamic) (0013page15 3)
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 has
been brak ed toast ands tillon mult i-lane,stru c‐ tur
ally separ atero adw aysby ActiveDis tance
Assi stDIS TRONI C,itcan automatical lyfollo w
th eve hicle infront driving offag ain within
30 seconds. Ifacr itical situation isde tected
whe ndr ivi ng off,avis ualand acoustic warning is
giv en indic atingth at thedr iver mus tno wtake
contr olof theve hicle. Thevehicle isno tacceler‐
at ed 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 limita tions
The system maybe impair edorma yno tfunc tion
in thefo llo wing instances:
R Insno w,rain, 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. 000A
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 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. 18
4
Driving and parking

0007
Alw ayscar efully observethetraf fic con‐
di tions andbeready tobrak eat all
times. 0007
Take intoacc ount thetra ffic situat ion
bef orecallin gup thestor ed speed. 000A
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. 0007
Inthese cases, adjustyo ur spee dand
ke ep asuf ficie ntdist anc e. 0007
Brak eth eve hicle yourself and/or take
ev asiv eact ion. 000A
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. 0007
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 Allthedoor sar eclosed.
R Chec kof thera dar sensor system has been
success fullycom pleted(vehicle traveling
fa ster than 12 mp h(20 km/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

If
no vehicle isde tected intheadjacen tlane and
a lane chang eis per mitted, thelane chang e
begin s.This issho wntothedr iver wit hagr een
ar row 2next to thesteer ing wheel symbol.
The Lane Change tothe Left messag ealso
appear s,forex am ple. IfAc tiveLa ne Chang e
Assi sthas been activated withth etur nsignal
indicat orbut alane chang eis no timm ediat ely
poss ible, agr ay arro w 1 appear sne xt to the
st eer ing wheel symbol, whichre mains green.
When thelane chang eassis tance star ts,th etur n
signal indicat orisaut omaticall yactiv ated beside
th edispla yin themultifunc tiondispla y.
If th eassis tance grap hicis sho wnwhen chang ‐
ing lane s,thelane chang edispla yappear swit h an
addit ionalarrow point ingtowa rdsth eadja‐
cent lane(0013 page19 3).
If alane chang eis no tposs ible, thear row fades
out afte ra fe w sec ond sand ane wlane chang e
mus tbe init iated. Animm ediat elane chang eis
on lypo ssible on free wa ysec tion swit hout speed
limi ts.
If th esy stem isim pair ed,ActiveLa ne Chang e
Assi stma ybe canceled .If it is canceled ,th e
Lane Change Cancel edmessag eappe arsin the
multifu nctiondisplay and awa rning tone sou nds. 000A
WARNIN GRisk ofacci dent from chang ‐
ing lane toan occ upied adjacentlane
Lan eChan geAssi stcanno tal wa ys detect
cle arly ifth eadjacen tlane isfree.
The lane chang emigh tbe init iated although
th eadjacen tlane isno tfr ee. 0007
Beforech ang inglane s,mak esur eth at
th eneighbor inglane isfree and ther eis
no dang ertoother road user s. 0007
Mon itor thelane chang e. 000A
WARNIN GRisk ofacci dent ifLane
Ch ang eAssi stune xpectedl yst ops func‐
tionin g
If th esy stem limit ations forLane Change
Assis tha ve been reac hed, ther eis no guar‐
ant eethat thesy stem will remain active.
Lane ChangeAssis tcanno tth en assis tyo u
by appl ying steer ing torq ues . 0007
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 limita tions
The system limit ations ofActiveSt eer ing Assis t
apply toActiveLa ne Chang eAssi st
( 0013 page18 9).
The system mayalso beimpair edorma yno t
func tion inthefo llo wing situat ions:
R The sensorsin there ar bum peraredir ty,
damag edorcovered, forins tance bya
st icke ror ice and snow.
R The exterior lighting ismalfunct ioning. 19
2
Driving and parking

Pa
rking Assis tPA RK TRONI C Fu
nction ofParking Assis tPA RK TRONI C Pa
rking AssistPA RK TRONI Cis an elec tron ic
par kingassi stanc esy stem withultr asound. It
monit orsth ear ea around your vehicle using six
sensor s1 inthefront bum perand sixsensor s
in there ar bum per.Pa rking AssistPA RK TRONI C
sho wsyouth edis tance betwee nyo ur vehicle
and ade tected obs tacle visually and audibly .
Pa rking AssistPA RK TRONI Cis on lyan aid. Itis
no ta subs titutefo ryo ur att entio nto thesur‐
ro und ings.The responsibili tyforsaf emaneu ver‐
ing and parking remains withyo u. Mak esur e
th at ther ear eno per sons, animals orobjec tsin th
emaneuv ering area while maneuv ering and
par king in/exitingpar king spaces.
In thest andar dse tting ,an intermit tent wa rning
to ne sou nds from adi st anc eof appr oximat ely
1. 0 ft (0.3 m)toan obs tacle infront and approx ‐
imat ely3. 3ft (1.0 m) toan obs tacle beh ind. A
continu ousto ne sou nds from adi st anc eof
appr oximat ely0. 7ft (0.2 m).Using theWa rn
ear lysettin gin themultimedia system, the
wa rning tones forfr ont and side impact protec‐
tion canalso besetto sound atagr eat erdis‐
ta nce ofapprox imat ely3. 3ft (1.0 m)
(0013 page203).
0009 The Warnear lysettin gis alw aysactiv ein
th ere ar oftheve hicle.
If Pa rking AssistPA RK TRONI Cis deac tiva ted,
Ac tivePa rking Assistis una vailable. Pa
rking Assis tPA RK TRONI Cdispl ayinthe
mu ltim edia system Ve
hicles withAc tivePa rking Assistwit hout a
360 °Camer a 200
Drivin gand parking

Ve
hicles withAc tivePa rking Assistand a360 °
Camer a
If Ac tivePa rking Assistis deact ivat ed and an
obs tacle isde tected inthepat hof theve hicle, a
pop-up windowforPa rking AssistPA RK TRONI C
1 appear sin themultimedia system atspeeds
belo w6mp h(1 0 km/h).
Sy stem limita tions
Pa rking AssistPA RK TRONI Cdoes notne cessa‐
ri ly take intoacc ount thefo llo wing obstacle s:
R Obs tacle sbel ow thede tection rang e, e.g .
pe rsons, animals orobject s. R
Obs tacle sab oveth ede tection rang e, e.g .
ove rhang ingloads, overhang sor loadin g
ra mp sof truc ks.
The sensor smus tbe free ofdir t,ice and slush.
Ot her wise, they ma yno tfunction correctly .
Cl ea nth esensor sre gular ly,ta king careno tto
scr atc hor damag eth em.
Fu nction ofthepa ssiv eside impact protec‐
tion
Pa ssiv eside impact protect ion isan additional
Pa rking AssistPA RK TRONI Cfun ction whic h
wa rnsth edr iver about obstacle sat theside of
th eve hicle. Awa rning isissued whenobstacle s
ar ede tected between thefront and rear detec‐
tion rang e. In orde rfo ran object ontheside to
be detected, thesensor sin thefront and rear
bum permus tfirs tde tect theobjec twhile you
ar edr ivin gpas tit.
Dur ing thepar king procedur eor maneuv ering,
objec tsarede tected astheve hicle drives pas t.
If yo usteer inthedir ect ion ofade tected obs ta‐
cle and ther eis arisk ofalat eral collision, a
wa rning isissued. Thesegme ntson thesides light
upyello wor red, dependin gon thedis tance
to theobs tacle .
Seg ment colordepe ndingon distan ce
Co lor Lateral dis tan cein
cm
Ye llo wA pprox.30 -60
Re dA pprox.< 30 In
order forlat eral front orrear segm entsto be
displa yed, theve hicle mustfirs ttr ave la dis tance
of at leas tha lfof theve hicle length.Once the
ve hicle hastrave led thelengt hof theve hicle, all
of thelat eral front and rear segm entscan bedis‐
pla yed. Dr
iving andparking 20
1

Ve
hicles without 360° Camer a
1 Parking AssistPA RK TRONI Cis on lyop era‐
tio nal inthefront and rear
2 Parking AssistPA RK TRONI Cis oper ational
and canalso warnthedr iver about obstacle s
at theside oftheve hicle
3 Obstacle detected atthefront right (yello w)
and rear (red) Ve
hicles with360° Camer a
1 Parking AssistPA RK TRONI Cis on lyop era‐
tio nal inthefront and rear
2 Parking AssistPA RK TRONI Cis oper ational
and canalso warnthedr iver about obstacle s
at theside oftheve hicle
3 Obstacle detected atthefront right (red)
Sa vedobs tacle son thesides aredele tedin the
fo llo wing situat ions,fo rex am ple:
R Youpar kth eve hicle andswitc hof fth eigni‐
tion .
R Youopen thedoor s. Af
terth eengine isrestar ted, obs tacle smus tbe
de tected again bef oreane wwa rning can be
issued.
Sy stem limita tions
The system limit ations forPa rking Assist
PA RK TRONI Cappl yfo rpass ive side 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
Deactiv ating/activ atingParking Assis t
PA RK TRONI C
000E 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. 0007
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. 202
Driving andparking