2022 MERCEDES-BENZ CLS Owners Manual

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00E9
Seat beltwarning lamp
lights up *T
he redseat beltwarning lamplights upforsix seconds oncetheve hicle hasstar ted.
In addition, anintermitt entwarning tone maysou nd.
The redseat beltwarning lampre minds thedr iver and front passeng ertofasten their seat belts. #
Fasten your seat belt(/page38).
If yo uha ve placed objects onthefront passeng erseat, there dseat beltwarning lampma yre main lit. VV
ehicle ehicle
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Po we rst eer ing warning
lam p(red) *T
he redpo we rst eer ing warning lampis lit while theve hicle isrunning.
The powe rassist anceorthesteer ing itself ismalfunctionin g. &
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ARNIN G ARNIN
GRisk ofaccident ifsteer ing capability isim pair ed
If th esteer ing does notfunction asintended, theve hicle' soper atingsaf etyis jeopar dized. #
Pullove rand stop theve hicle safelyas soon aspossibl e,paying attent ion toroad and tra1c cond itions. Donot
cont inuedr ivi ng und eranycir cums tances . #
Cons ultaqu ali/ ed spec ial ist wo rkshop. #
Notethemessag eson theinstr ument display. Displa
ymessag esand warning/in dicatorlam ps
399 399

Engi
ne Engi
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ÿ
Coolant warning lamp(red) *T
he redcoolant warning lampis lit while theengine isrunning.
Po ssible causes:
R The temp eratur esensor ismalfunctionin g
R The coolant leve lis toolow
R The airsuppl yto thera diat orisobstr ucted
R The radiat orfan is faulty
R The engine coolant pumpis faulty
If th er eis an additional warning tone, thecoolant temp eratur ehas exceeded themaximum permissible temp eratur e. &
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ARNIN G ARNIN
GRisk ofbur nswhen opening thehood
If yo uopen thehood intheev ent ofan overheat edengine or/rein theengine compartment, thefo llo wing situations
ma yoccur :
R Youma ycome intocont actwithho tga ses.
R Youma ycome intocont actwithot her escapin gho toper ating0uids. #
Beforeopen ingthehood, allowtheengine tocool down. #
Intheev ent ofa/r ein theengine compartment, keep thehood closed andcallthe/r eser vice. #
Stop immediat elyin accor dance withth etra1c conditions andswitc ho. theve hicle. Donotcont inuedr ivi ng . 400400
Displ
aymessag esand warning/in dicatorlam ps

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Notethemessag eson theinstr ument display.
If t If
the coolan tt he
coolan ttem em
per per
atur atur
edispl a e
displ ay is at t y
is at the low he
lower end oft er
end ofthe t he
tem em
per per
atur atur
escale: e
scale: #
Con sult aquali/ed specialistwo rkshop.
If t If
the coolan tt he
coolan ttem em
per per
atur atur
edispla e
displa yis at t y
is at the upper endoft he
upper endofthe t he
tem em
per per
atur atur
escale: e
scale: #
Exit theve hicle andkeep asaf edist ance from ituntil theengine hascooled down. #
Chec kth ecoolant leve l(/ page272). #
Mak esur eth at theair suppl yto thera diat orisno tobstr ucted. #
Avoiding highloads ontheengine, drive to thenear estquali/ed special istwo rkshop. Indoin gso, ensu rethat the
coolant temp eratur edispla yre mains belowthere dar ea.
ÿ Coolant warning lamp(yel-
lo w) *T
he yello wcoolant warning lampis lit while theengine isrunning.
Po ssible causes:
R The temp eratur esensor ismalfunctionin g
R The charge air,tr ansmi ssionoilorbatt erycooli ngisfaulty
R The radiat orshutt ersar ebloc kedor def ectiv e #
Avoiding highloads ontheengine, drive to thenear estquali/ed special istwo rkshop. Displ
aymessag esand warning/in dicatorlam ps
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00B9
Engin ediagnosis warning
lam p *T
he yello wChec kEngine warning lampis lit while theengine isrunning.
A ma lfunct ionhasocc urredin theengine, theex haus tsy stem orthefuel system.
The emission limitvalues maybe exceeded andtheengine maybe inemer gency mod e.
In som estat es, legalrequ irements stipulateth at youmust immediat elyconsult aqu ali/ed special istwo rkshop assoon
as theye llo wChec kEngine warning lamplights up. #
Have theve hicle checkedas soon aspossible ataqu ali/ed special istwo rkshop.
003D
Elect rical malfu nctionwarn-
ing lamp *T
heredelectr icalmalfuncti onwarning lampis lit.
Ther eis amalfunction intheelectr ics. #
Notethemessag eson theinstr ument display.
00B6
Fu elreser vewarning lamp
0as hes *T
he yello wfuel reser vewarning lamplights upwhile youar edr iving.
Ther ehas been pressur eloss inthefuel system. Thefuel /ller capisno tclosed correctl yor thefuel system isleaking. #
Close thefuel /ller cap.
If th efuel /ller caphasalready been closed correctl y: #
Consult aqua li/ed specialist workshop. 402402
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aymessag esand warning/in dicatorlam ps

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causes/conseq uencesand uences
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ions
00B6
Fu elreser vewarning lamp
lights up *T
he yello wfuel reser vewarning lamplights upwhile theengine isrunning.
The fuel supplyha sdr opp edintoth ere ser verang e. #
Refuel . Dis
playme ssag es and warning/in dicatorlam ps
403 403

BrBr
ak ak
es es
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causes/conseq uencesand uences
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0049
Electr icpar king brak eindi-
cat orlam p(red) (USAonl y)
0024
Electr icpar king brak eindi-
cat orlam p(red) (Canada
onl y)
0024 The electr icpar king brak e
(y ello w)indicat orlam p *T
he redelectr icpar king brak eindicat orlam p0ash esorislit.
The yello welectr icpar king brak eindicat orlam pis also litintheeve ntofama lfunct ion. #
Notethemessag eson theinstr ument display. 404404
Displa
ymessa gesand warning/in dicatorlam ps

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00C6
Re cuper ativeBr ak eSy stem
wa rning lamp(US Aonl y)
004D
Br ak es warning lamp(yel-
lo w) (Canada only) *The
yello w00C6 warning lamp(US Aonl y)or theye llo w004D brak ewa rning lamp(Canada only)islit while theve hicle is
ru nning. &
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ARNI NG ARNI
NGRisk ofan accid ent due toabr ak esy stem malf unct ion
If th ebr ak esy stem ismalfunctionin g,braking charact eristics maybe impair ed. #
Drive on car efull y. #
Have thebr ak esy stem checkedimmediat elyat aqua li/ed specialist workshop. #
Adjust your speed anddrive on car efull y,lea ving asuit able distance totheve hicle infront . #
Ifth einst rument displa ysho wsadispl aymessag e,obser veit. #
Consult aqua li/ed specia listworkshop. Displ
aymessag esand warning/in dicatorlam ps
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0027
Br ak ewa rning lamp(US A
onl y)
004D
Br ak esy stem warning lamp
(Canada only) *T
he redbr ak ewa rning lampis lit while theve hicle isrunning.
Po ssible causes:
R The brak efo rc eboostin gis malfunctionin gand thebr aking charact eristics maybe a.ect ed.
R Ther eis insu1cie ntbrak e0uid inthebr ak e0uid reser voir. #
Notethemessag eson theinstr ument display. &
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ARNI NG ARNI
NGRisk ofaccid ent and injur yif br ak efo rc eboosting ismalfunctionin g
If br ak efo rc eboosting ismalfunctionin g,incr eased brak epedal forc ema ybe necessar yfo rbr aking. Thebraking
ch aract eristics maybe impair ed.The braking distance canincr easein eme rgency braking situations. #
Stop inasaf elocation immediat ely. Do notcontinue driving . #
Consult aqua li/ed specialist workshop. &
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AR NIN G AR
NIN GRisk ofan acciden tdue tolow brak e0uid leve l
If th ebr ak e0uid leve lis toolow, thebr aking e.ect andthebr aking charact eristics maybe impair ed. #
Pullove rand stop theve hicle safelyas soon aspossibl e,paying attent ion toroad and tra1c cond itions. Donot
cont inuedr ivi ng und eranycir cums tances . #
Cons ultaqu ali/ ed spec ial ist wo rkshop. #
Donotadd brak e0uid. 406406
Displ
aymessag esand warning/in dicatorlam ps