warning light MERCEDES-BENZ CLS 2021 User Guide

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 161). If
aut onom ous brak ing or situa tion-de pende nt
br aki ng assist anc ehas occurred, displa y1
appear sin themultifunc tiondispla yand then
aut omaticall ygoes outafte ra shor ttime.
If th eaut onomous braking function orthesitua‐
tion -dependen tbr aking assistance istrig ge red, additional
preve ntiv emea suresfo roccupa nt
pr otect ion (PRE-S AFE®
)ma yalso beinitiat ed. &
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 . #
Alw ayspa ycar eful attention tothetra f‐
fi c situ ation; donotre ly on ActiveBr ak e
Assi stalon e.Ac tiveBr ak eAssi stisonl y
an aid. Thedriver isresponsible for
maint ainingasuf ficie ntly safedist anc e
to theve hicle infront, vehicle speed
and forbr aking ingood time. #
Beprepa redto brak eor sw erve ifnec ‐
essar y. Als
oob ser vethesy stem limits ofActiveBr ak e
Assi st. The
indiv idua lsub functionsar eav 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.
Ve hicl eswith PRE-S AFE®
:depe nding on
th ecount ry,an addition alhap ticwarning
occ ursin thefo rm ofslight, repeat edten‐
si oni ng oftheseat belt.
Br ak eimmediat elyortake evasiv eact ion,pr ov i‐
ded itis saf eto do soand thetraf fic situ ation
al lo ws this. Dr
ivin gand parking18
3

Cor
nering function (onlyve hicl eswith Driv‐
ing Assistanc ePa ckag e)
If adang erofcoll ision from anoncoming vehicle
is de tected whe ntur ning across anoncomi ng
la ne, autonomo usbraki ng can beinitia tedat
speeds below9mp h(1 5 km/h) beforeyo uha ve
lef tth elane inwhic hyo uar edr ivin g. &
WARNIN GRisk ofacci dent despite Eva‐
si ve Steer ing Assis t
Ev asiv eSt eer ing Assis tcann otalw aysre cog‐
nize objectsorcom plex traf fic situ ations
cle arly.
Mor eover,th esteer ing suppor tpr ov ided by
Ev asive St eer ing Assis tis no tsuf ficie ntto
avo idacollis ion. #
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 objects .
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 Ifth edr iver's seat beltisno tfa stened.
R Onbends withatight 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
Re quirement s:
R The ignit ionisswitc hedon. 18
6
Driving and parking

R
Cruise contro l
R Variable limiter
Fu rther information (/page17 3).
Di spla ying detected traf fic signs inthe
med iadis pla y #
Select Display inCent ralDis play . #
Activateor deacti vate thefunc tion.
Se tting thety pe ofwa rning #
Selec tVisual &Audible ,Visual orOff .
Se tting thewa rning threshold
This value determ ines thespeed atwhic ha
wa rning isissued whenexceeded. #
Select Warning Threshold. #
Setth edesir edspeed. Ov
ervie wof thetraf fic ligh tda ta ser vice &
WARNIN GRisk ofan acci dent orinju ry
due todis traction, incor rect or mis sing
da ta
The traf fic light informati ondispl ayisan aid
and cannotre place theobser vatio nof the
act ual drivin gsit uatio n. #
Keep theactual traffic situat ioncon‐
st ant lyin view when approachingatraf‐
fi c light and whench ang inglane s. #
Avoid prolong edviewing oftheIns tru‐
ment Displa yand Head-up Display. The
Instrument Displayand Head-up Display(if
av ailable) showthetra ffic light andremaini ng
time 1until thene xt green phase asacount ‐
do wn. Ex
am ple repr esent ation intheIns trument Display
The displa yis hidden aboutfive seconds before
th etraf fic lights chang eto gree n.
% Thedisp lay also goes outinthefo llo wing
cases :
R When turnin gof fbef oreth eint ersect ion
int oacr oss orside stre et
R When turning beforeth eint ersect ion
% The direct ion arrow sar edispla yeddepend‐
ing onthefo llo wing functions:
R Atur nsign alisset
R Alane isrecomme ndedduring acti ve
ro uteguidan ce Dr
ivin gand parking18
9

R
Obser veapplic abletraf fic ru les and regula‐
tions
Obser vetheno teson driving systems andyour
re sponsibili ty;yo uma yot her wise failto recog‐
nize dangers.
Sy stem limit s
The displa ydoes notappear inthefo llo wing sit‐
uation s,forex am ple:
R Ther eis no traf fic light data available.
R The timere maini nguntil thene xt green
phase isless than tenseco nds.
R Emerg encyvehicles orlocal publictranspor t
ar elocat edinthevicinit yof theint ersect ion.
R The datatransmission from theve hicle has
been interru pted.
R Light signal systems arelocat edinacon ‐
st ru ction sitear ea orarebei ng mai ntained.
R The light signal system ismalfunct ioning.
R The subscr iption totheser vice hasexpir ed. Switc
hingthetraf fic ligh tinf orma tion dis‐
pla yon oroff Mult
imed iasystem:
4 © 5
Set ting s5
Assist ance #
Switc hTraffic LightInformation onD or
of fE. 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. Pe
rm anen tst atus displa yin theins trument clus‐
te r:
R ¸ (gra y): system isactiv ated but inoper a‐
tiv e
R ¸ (green): system isactiv ated and oper a‐
tion al
If ave hicle isde tected clos eto your vehicle and
yo uswit chon thetur nsignal indicat orinthecor‐
re sponding direction, adoubl ewa rning tone
sou nds and there dwa rning lam pin theoutside
mir rorflashes .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. Dr
iving andparking 19
1

&
WARNIN GRisk ofexplosion during
ch argin gpr oce ssand star tin gassis tance
Dur ing thech argin gpr oce ssand star tin g
assis tance, thebatt eryma yre lease anexplo‐
siv ega smixtur e. #
Avoid fire ,open flames ,cr eat ing spar ks
and smoking. #
Mak esur eth er eis suf ficie ntventil a‐
tio n. #
Donotle an ove ra batt ery. &
WARNIN GRisk ofexplosion from afro‐
zen battery
A disc hargedbatt eryma yfreeze attemp era‐
tur es slightl yabo veorbelo wfreezing point.
Dur ing star tin gassis tance orbatter ych arg‐
ing ,bat tery gascan bereleased. #
Alw aysallo wabatt eryto thaw before
ch argin git or per form ing star tin gassis ‐
ta nce. If
th eindicat or/warning lampsintheins trument
clus terdo notlig ht up atlow temp eratur es,itis
ve ry likelyth at thedisc hargedbatt eryhas fro‐
zen .In this case youma yne ither jump-start the
ve hicle norcharge thebatt ery.
The service life of abatt eryth at has been
th awe dma ybe dramaticall yshor tened .The
st ar tin gch aract eristic sma ybe impair ed,espe ‐
ciall yat low temp eratur es.
It is recomme ndedthat youha ve ath aw ed bat‐
te ry checkedat aqu alif ied spec ialistwo rkshop.
All vehicl es
* NO
TEDama gecau sed bynum erou sor
ex tende datt em ptsto star tth eengine Nu
me rous orextende datt em ptsto star tth e
engine maydamag eth ecat alytic converter
due tonon-co mbusted fuel. #
Avoid numer ousand extende datt em pts
to star tth eengine. Obser
vethefo llo wing pointsdur ing star tin g
assis tance and when chargin gth ebatt ery:
R Onlyuse undamag edjum per cables/c harg‐
ing cables withasuf ficie ntcross -secti onand
insu late dte rm inal clam ps.
R Non-insulat edpar tsof thete rm inal clam ps
mus tno tcom eint ocon tact with other metal
par tswhile thejum per cable/c harging cable
is con nect edtothebatt ery/jum p-start con‐
nectio npoi nt.
R The jumper cable/c harging cable mustno t
com eint ocon tactwi th anypar tswhic hma y
mo vewhen theengine isrunning .
R Alw aysmak esur eth at nei ther youno rth e
batt eryis elect rostatic allych arge d.
R Keep away from fire and open flames .
R Donotlean overth ebatt ery.
Obser vetheadditional follo wing pointswhen
ch argin gth ebatt ery:
R Onlyuse batterych arge rs tested and
appr oved forMer cedes-Benz.
R Read thebatt erych arge r's oper ating instruc‐
tions beforech argin gth ebatt ery. 286
Breakdo wnassis tance

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
Place theKey inthe
Marked SpaceSeeOpera-
tor's Manual *S
mar tKey detection ismal functi oning. #
Chang eth elocation oftheSmar tKey intheve hicle. #
Place theSmar tKey inthemar kedspace forst ar tin gth eengine withth eSmar tKey (/ pag e13 5). Lig
hts Dis
playmess ages
Possible causes/conseq uencesand0050 0050
Solutions
: Check LeftLow
Beam (exa mp le) *T
hecor responding lightsourceisfaulty . #
Drive on car efull y. #
Con sult aqu alif ied spec ialistwo rkshop immediat ely.
% LED lightsour ces: thedispla ymessag efo rth ecor responding lightappea rsonl ywhen allthelight- emitt ing
diodes inthelight arefa ulty .
: Malf unctionSee Oper a-
to r’s Man ual *T
heexterior lighting ismalfunct ioning. #
Consult aqu alif ied spec ialistwo rkshop. 34
6
Dis play messa gesand warning/ indic ator lam ps

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
: Autom aticHeadlamp Mode
Inoperat ive *T
helight sensor ismalfunctionin g. #
Consult aqu alif ied spec ialistwo rkshop.
: Act ive Headla mpsInopera-
tive *T
heactiv eheadla mpsar emalfunctioning. #
Consult aqu alif ied spec ialistwo rkshop.
: Switch OnHeadla mps *Y
ouaredr iving without low- beam headlam ps. #
Turn thelight switc hto the0058 or0058 position .
:
Switc hOff Lights *Y
ouarelea ving theve hicle andthelights arest ill switc hedon. #
Turn thelight switc hto the0058 position . Displa
ymessag esand warning/ indic ator lam ps 34
7

Disp
laymes sages
Possible causes/conseq uencesand0050 0050
Solutions
: Int ell. Light System Inoper-
ative *T
heIntellig entLight System ismalfunct ioning.Thelighting system continues tofunction proper lywit hout thefunc ‐
tion sof theInt ellig entLight System. #
Consult aqu alif ied spec ialistwo rkshop.
Adaptive Highbeam Assist
Currently UnavailableSee
Operator's Manual *A
dap tiveHighbeam Assistis temp orarily una vailable.
The system limits have been reac hed (/page11 7).
Once thecause ofthepr oblem isno long erpresent ,th esy stem will beavailable again. TheAdap tiveHig hbeam
As sist Now Available displaymes sagewill appear . #
Drive on .
Adap tiveHig hbeam Assist
In oper ative *A
daptiveHighbeam Assistis malfunc tioning. #
Consult aqu alif ied spec ialistwo rkshop.
Hazard Warning Flashers
Malfunctioning *T
hehazar dwa rning lam pswitc his malfun ctionin g. #
Consult aqu alif ied spec ialistwo rkshop. 34
8
Dis play messa gesand warning/ indic ator lam ps

Wa
rning and indicat orlam ps Ov
ervie wof indicat orand warning lam ps Som
esy stems willperform aself -tes twhen the
ignit ionisswitc hedon.Som eindic ator and
wa rning lam psma ybr ief lylight uporflash. This
beha viorisno n-cr itical. Thes eind icat orand
wa rning lam psindic ateamalfun ction onlyif th ey
light uporflash afte rth eengine hasbeen star‐
te dor dur ing ajour ney.
Ins trum ent Disp lay De
pen dingon thedispla yse tting, theposition s
of theindicat orlam pson theIns trument Display
ma ydif ferfr om theex am ple shown. Indi
catorand warning lam ps:
0075 Re
stra int system (/ page388)
00E9 Seat
belt(/page388)
Ù Powe rst eer ing (/ page389)
ÿ Coolanttemp eratur e(/ page390)
00B9 Chec
kEn gine (/page390)
003D Elect
rical mal functi on(/ page 390)
00B6 Re
ser vefuel withfuel filler flap loca‐
tio nind icat or(/ page39 0)
0049 US
A:elec tric par kingbr ak e(red)
(/ page39 3)
0024 Canada:
electric par kingbr ak e(red)
(/ page39 3)
0024 Ele
ctric pa rking brak e(yello w)
(/ page393)
00C6 US
A:Recup erati ve Brak eSy stem
(/ page393)
004D Canada:
brak es (yello w)
(/ page393)
0027 US
A:brak es (red) (/ page393)
004D Canada:
brak es (red) (/ page393) L
Distance warning (/ page396)
ä AIR BO DY CONTR OL(/ page396)
ä DYNA MIC BODY CONTR OL
(/ page396)
0025 ABS
(/page39 7)
00E5 ESP®
(/ page39 7)
00BB ESP®
OFF (/page39 7)
0077 Ti
re pressur emonit oring system
(/ page399)
0060 Pa
rking lam ps(/ page11 4)
0058 Lo
wbe am (/ page11 4)
0057 Hi
gh beam (/ pag e11 5)
003E003D Tu
rn signal lights(/page11 5)
005E Re
ar foglight (/page11 4) Displ
aymessa gesand warning/ indic ator lam ps 38
7

Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
00E9 Seat beltwarning lam p
light sup *T
he redseat beltwarning lam plight sup forsix seconds oncetheengine hasstar ted.
In addition, anintermitt entwarning tone maysou nd.
The redseat beltwarning lam pre minds thedr iver and front passeng ertofasten their seat belts. #
Fasten your seat belt(/page40 ).
If yo uha ve placed objectson thefront passeng erseat, there dseat beltwarning lam pma yre main lit. Ve
hicl e Wa
rning/indicat orlam p
Possible causes/conseq uencesand0050 0050
Solutions
Ù Po we rst eer ing warning
lam p(red) *T
he redpo we rst eer ing system warning lam pis lit while theengine isrunning .
The powe rassi stanc eor thesteer ing itself ismalfunct ioning. &
WA RNIN GRisk ofacci dent ifsteer ing capability isim pair ed
If th esteer ing does notfunc tion asintended, theve hicle's operating safetyis jeopar dized. #
Pull overand stop theve hicle safely assoon aspossible, paying attention toroad and traf fic condi tions.Do
no tcontinu edr ivi ng und eranycir cums tances. #
Consu ltaqu alif ied spec ialistwo rkshop. #
Notethemessag eson themultifunc tiondispla y. Dis
play messa gesand warning/ indic ator lam ps 389