2020 MERCEDES-BENZ SLC sensor

Disp
laymes sages Poss
iblecauses/co nsequences and 0050 0050
Solu tions The
yellow 0024warninglamp lightsup and ther ed 0049 (USA
on ly) or0024 (Canadaonly) ind icat orlamp flashes .
It is no tp ossibl etoa pply thee lectric park ingbrak emanually.
X Sh ift thet rans mis sion topos ition 005D.
X Vis itaq ualif iedspecialistwor kshop . 0027
(USAonly)
004D (Canadaonly)
Che ckBrakeFluid Che
ckBrakeFluid
Lev el Lev
el The
reisno te nough brak efluidi nt he brak efluid reservoir.
In addit ion,the 0027 (USAonly) or 004D (Canadaonly) warn ing
lamp lightsup inthei nstrumen tclus tera nd aw arning tone soun ds.
G WAR
NING
The brak ingeffectm aybe imp aire d.
The reisar isko fana cciden t.
X Pull overand stop thev ehicles afely assoo naspossibl e,payin g
att ention toroa dand traff icco nd ition s.Do notc ontin ue drivin g
und erany circum stanc es.
X Se cur ethe veh iclea gain strol linga way (Ypage 134).
X Con sult aqualif iedspecialistwor kshop .
X Do nota dd brak efluid .This does notc orrect them alfunc tion . 0026
Che ckBrakePad Che
ckBrakePad
Wea r Wea
r The
brak epads /linin gshav ereac hed their wear limit.
X Vis itaq ualif iedspecialistwor kshop . PRE
-SAFEInoper a‐ PRE
-SAFEInoper a‐
tiv eS eeOpe ra‐ tiv
eS eeOpe ra‐
tor 'sManual tor
'sManual Im
por tantfun ction sofPRE -SAF E®
hav efailed. Allo ther occup ant
saf etys yst ems ,e.g.a irbags ,rem ain avail able.
X Vis itaq ualif iedspecialistwor kshop immediat ely. Act
ive Brake Act
ive Brake
Ass ist Functions Ass
ist Functions
Cur rently Limite d Cur
rently Limite d
See Operator'sM an‐ See
Operator'sM an‐
ual ual Ac
tive Brake Assis tist em porar ily ino per ative.
Pos siblecaus esare:
R ther adar sensor syst emistempo rarily ino per ative, e.g. due to
elec tromag neticr adi ation emi tted bynearby TVorradi ostation s
or other sour ceso felec tromag neticr adi ation
R thes yst em isout side theo per ating tempe rature range
R theo n-bo ardv oltag eist oo low
Whe nthe caus esstate dabov enolon ger apply, thed isplay mes sage
disap pears.
Ac tive Brake Assis tiso per ationalagain .
If th ed isplay mes sage does notd isap pear :
X Pull overand stop thev ehicles afely assoo naspossibl e,payin g
att ention toroa dand traff icco nd ition s.
X Se cur ethe veh iclea gain strol linga way (Ypage 134).
X Rest artthee ngine. Disp
laymes sage s
189On -boar dcomp uter andd ispla ys Z

Disp
laymes sages Poss
iblecauses/co nsequences and 0050 0050
Solu tions Act
ive Brake Act
ive Brake
Ass ist Functions Ass
ist Functions
Lim itedS eeOpe ra‐ Lim
itedS eeOpe ra‐
tor 'sManual tor
'sManual Ac
tive Brake Assis tisu nav ailable duetoam alfunc tion .
X Vis itaq ualif iedspecialistwor kshop . Rad
arSensors Rad
arSensors
Dir tySee Opera‐ Dir
tySee Opera‐
tor 'sManual tor
'sManual The
radar sensor syst emismalf unction ing .
Pos siblecaus esare:
R dir to ns ensor s
R heav yrain orsnow
R when drivin go ninter- urban roadswithout traff icor infras truct ure,
e. g. indes ert-like area s
At least oned rivin gs yst em ordrivin gs afet ys yst em ismalf unction -
ing oristempo rarilyunav ailable :
R Ac tive Brake Assis t
R Ac tive Distanc eAssistD ISTR ONI C
On ce thec aus eofthe pro blem isno longer presen t,th ed rivin ga nd
dri ve saf etys yst ems willbeavail able again .The disp laymes sage
disap pears.
If th ed isplay mes sage does notd isap pear :
X Pull overand stop thev ehicles afely assoo naspossibl e,payin g
att ention toroa dand traff icco nd ition s.
X Se cur ethe veh iclea gain strol linga way (Ypage 134).
X Swi tcho ffthee ngine.
X Clean allsen sors(Ypage 251).
X Rest artthee ngine.
The displaymes sage disap pears. 0075
SRS Malfunction SRS
Malfunction
Ser viceR equir ed Ser
viceR equir ed The
restrain tsyst em ismalf unction ing .The 0075 warninglamp also
ligh tsup inthei nstrumen tclus ter.
G WAR
NING
The airbags orEm erg ency Ten sion ingDevic es may either betrig-
ger eduninten tion ally or,inthee vent ofan acc iden t,may notb e
tr igge red.
The reisan increas edrisko finjury.
X Vis itaq ualif iedspecialistwor kshop immediat ely.
Fur ther inform ation about ther estrain tsyst em (Ypage 39). 190
Disp
laymes sage sOn -boar dcomp uter andd ispla ys

Disp
laymes sages Poss
iblecauses/co nsequences and 0050 0050
Solu tions cat
orlamp remainslitor goe soutdepe ndso nh ow OCS classifies
th eo ccup ant .
If th ec ondition sa renotfulf illed ,the syst emisno to per ating cor-
rec tly.
X Vis itaq ualif iedspecialistwor kshop immediat ely.
Obs ervethe addit ionalinf orm ation onOCS (Ypage 46). Ligh
ts Disp
laymes sages Poss
iblecauses/co nsequences and 0050 0050
Solu tions 0049
Che ckLeftL ow Che
ckLeftL ow
Bea m Bea
m(Exam ple) The
corresp ondin gb ulb isfault y.
X Vis itaq ualif iedspecialistwor kshop .
or X Chec kwhether you arepermittedt or eplace theb ulb yours elf
(Y page 101).
LE Dl igh tsour ces:thed isplay mes sage forthec orresp on din glamp
on lyappear swhen alltheL EDsint he lamp havefailed. 0049
Act ive Headlamps Act
ive Headlamps
Ino perative Ino
perative The
active ligh tfun ction isfault y.
X Vis itaq ualif iedspecialistwor kshop . 0049
Mal functionSee Mal
functionSee
Ope rator'sM anual Ope
rator'sM anual The
exterio rligh ting ismalf unction ing .
X Vis itaq ualif iedspecialistwor kshop . 0049
Aut oL ampF uncti on Aut
oL ampF uncti on
Ino perative Ino
perative The
lightsensor isdef ective.
X Vis itaq ualif iedspecialistwor kshop . 0049
Swi tch OffLights Swi
tch OffLights The
lightsare still swit ched on when youleavethe veh icle. Aw arn-
ing tone also soun ds.
X Turn thel igh tswit ch topos ition 0058. 194
Disp
laymes sage sOn -boar dcomp uter andd ispla ys

Disp
laymes sages Poss
iblecauses/co nsequences and 0050 0050
Solu tions Lan
eK eepin g Lan
eK eepin g
Ass ist Currently Ass
ist Currently
Una vailableSee Una
vailableSee
Ope rator'sM anual Ope
rator'sM anual Lan
eKeepin gA ssisti sd eac tivat ed and tempo rarily ino per ative.
Pos siblecaus esare:
R thew indsh ield inthec am era' sfield of vis ion isdir ty
R vis ibilit yisimp aire dduetoheav yrain ,sno wo rfog
R there havebeen nolanem arking sfor an extend ed per iod
R thel an em arking sa rewor naway, darkorcover edup, e.g. by dirt
or snow
Whe nthe caus esstate dabov enolon ger apply, thed isplay mes sage
disap pears.
Lan eKeepin gA ssisti so per ationalagain .
If th ed isplay mes sage does notd isap pear :
X Pull overand stop thev ehicles afely assoo naspossibl e,payin g
att ention toroa dand traff icco nd ition s.
X Se cur ethe veh iclea gain strol linga way (Ypage 134).
X Clean thew indsh ield. Lan
eK eepin g Lan
eK eepin g
Ass ist Inoperati ve Ass
ist Inoperati ve Lan
eKeepin gA ssisti sf ault y.
X Vis itaq ualif iedspecialistwor kshop . Bli
ndSpotA ssist Bli
ndSpotA ssist
Cur rently Unavai la‐ Cur
rently Unavai la‐
ble SeeOperat or's ble
SeeOperat or's
Man ual Man
ual Bli
nd Spot Assis tist em porar ily ino per ative.
Pos siblecaus esare:
R fun ction isimp aire dduetoheav yrain orsnow
R ther adar sensor syst emisout side theo per ating tempe rature
ran ge
R ther adar sensor syst emistempo rarily ino per ative, e.g. due to
elec tromag neticr adi ation emi tted bynearby TVorradi ostation s
or other sour ceso felec tromag neticr adi ation
The yellow 0063indicat orlamp salso ligh tupint he exterio rm irror s.
Whe nthe caus esstate dabov enolon ger apply, thed isplay mes sage
disap pears.
Bli nd Spot Assis tiso per ationalagain .
If th ed isplay mes sage does notd isap pear :
X Pull overand stop thev ehicles afely assoo naspossibl e,payin g
att ention toroa dand traff icco nd ition s.
X Se cur ethe veh iclea gain strol linga way (Ypage 134).
X Clean thes ensor s(Ypage 251).
X Rest artthee ngine. Bli
ndSpotA ssist Bli
ndSpotA ssist
Ino perative Ino
perative Bli
nd Spot Assis tism alfunc tion ing .
The yellow 0063indicat orlamp salso ligh tupint he exterio rm irror s.
X Vis itaq ualif iedspecialistwor kshop . Disp
laymes sage s
199On -boar dcomp uter andd ispla ys Z

Disp
laymes sages Poss
iblecauses/co nsequences and 0050 0050
Solu tions Act
ive Distance Act
ive Distance
Ass ist Currently Ass
ist Currently
Una vailableSee Una
vailableSee
Ope rator'sM anual Ope
rator'sM anual Ac
tive Distanc eAssistD ISTR ONI Cistem porar ily ino per ative.
Pos siblecaus esare:
R ther adar sensor syst emistempo rarily ino per ative, e.g. due to
elec tromag neticr adi ation emi tted bynearby TVorradi ostation s
or other sour ceso felec tromag neticr adi ation
R thes yst em isout side theo per ating tempe rature range
R theo n-bo ardv oltag eist oo low
Aw arning tone also soun ds.
Whe nthe caus esstate dabov enolon ger apply, thed isplay mes sage
disap pears.
Ac tive Distanc eAssistD ISTR ONI Ciso per ationalagain .
If th ed isplay mes sage does notd isap pear :
X Pull overand stop thev ehicles afely assoo naspossibl e,payin g
att ention toroa dand traff icco nd ition s.
X Se cur ethe veh iclea gain strol linga way (Ypage 134).
X Rest artthee ngine. Act
ive Distance Act
ive Distance
Ass ist Inoperati ve Ass
ist Inoperati ve Ac
tive Distanc eAssistD ISTR ONI Cisfault y.
Aw arning tone also soun ds.
X Vis itaq ualif iedspecialistwor kshop . Act
.D istan ce Act
.D istan ce
Ass ist Suspended Ass
ist Suspended You
havedepr ess edthea cceler atorpedal .ActiveD istan ceAssis t
DI ST RONI Cisn olon ger control lingt he spe edofthev ehicle.
X Remo veyour footfromt heacc eler atorpedal . Dis
tanceAssist -- Distance
Assist--
-m ph -m
ph Ac
ondition foractivating Active Distance AssistDISTRONIC hasnot
been met.
X Check theactivation conditions forActive Distance Assist
DISTRONIC (Ypage 144). Cruise
Control Off Cruise
Control Off Cruise
controlhas been deactivated.
If aw arning tonealsosounds, cruisecontrolhas deactivated auto-
matically (Ypage 142). Cruise
Control -- Cruise
Control --
-m ph -m
ph Cruise
controlcannot beactivated, sincenotallofthe activation
conditions havebeen met.
X Check theactivation conditions forcruise control(Ypage 142). Cruise
Control Cruise
Control
Inoperative Inoperative Cruise
controlismalfunctioning.
Aw arning tonealsosounds.
X Visit aqualified speciali stworkshop. Dis
play messages
201On-boardcomp uter anddisplays Z

Disp
laymes sages Poss
iblecauses/co nsequences and 0050 0050
Solu tions Tir
eP ressu re Soon Tir
eP ressu re Soon The
tire pre ssur eino neormor etires has dropped significant ly.The
whee lposition issho wninthem ultifun ction disp lay.
Aw arning tone also soun ds.
G WAR
NING
Tir ep ressur esthat are tool ow pos ethe followin ghazards :
R they may burst,esp ecially asthel oad andvehicles peed increas e
R they may wear exce ssi vel ya nd/o ru neven ly,whic hmaygre atly
imp airtire tract ion.
R thed rivin gc harac teris tics ,a sw ellassteer ing and brak ing,m ay
be gre atlyimp aire d
The reisar isko fana cciden t.
X Stop thev ehiclew ithout makingany sudd ensteer ing orbrak ing
man euve rs.P ay attention tothet raffic co nd ition sasyou do so.
X Se cur ethe veh iclea gain strol linga way (Ypage 134).
X Chec kthe tires and,ifn ecessar y,fol low thei nstruct ionsfor aflat
ti re (Y page 253).
X Chec kthe tire pre ssur e(Ypage 275).
X Ifne cessar y,co rrec tthe tire pre ssur e. War
ningT ireM al‐ War
ningT ireM al‐
fun ction fun
ction The
tire pre ssur eino neormor etires has dropped suddenly. The
whee lposition issho wninthem ultifun ction disp lay.
G WAR
NING
Dr ivin gw ithaf lattire pos esarisko fthe followin ghazards :
R af lat tire affects thea bilit ytos teer or brak ethe veh icle
R you could lose control ofthev ehicle.
R co ntinu ed drivin gw ithaf lattire will caus eexces sive heat build-
up and possiblyaf ire
The reisar isko fana cciden t.
X Stop thev ehiclew ithout makingany sudd ensteer ing orbrak ing
man euve rs.P ay attention tothet raffic co nd ition sasyou do so.
X Se cur ethe veh iclea gain strol linga way (Ypage 134).
X Chec kthe tires and,ifn ecessar y,fol low thei nstruct ionsfor aflat
ti re (Y page 253). Tir
eP ress. Moni‐ Tir
eP ress. Moni‐
tor Currently tor
Currently
Una vailable Una
vailable Be
caus ethere isint erf ere ncef romas tron gs our ceofradi owaves,
no sign alsfrom thet irep ressur esensor saredet ected. The tire
pre ssur emonitor istempo rarily malf unction ing .
X Dr ive on.
The tire pre ssur emonitor res tartsauto maticallyas soo nasthe
pro blem hasbeen resolved. Tir
ePress.S en‐ Tir
ePress.S en‐
sor (s) Missing sor
(s) Missing The
reisno sign alfrom thet irep ressur esensor ofoneo rseveral
whee ls.The pressur eofthe affectedt ired oes nota ppear inthe
mult ifunction disp lay.
X Hav ethe fault ytirep ressur esensor replace dataq ualifiedspe-
cial istwor kshop . Disp
laymes sage s
203On -boar dcomp uter andd ispla ys Z

Disp
laymes sages Poss
iblecauses/co nsequences and 0050 0050
Solu tions Tir
eP ressu reMon i‐ Tir
eP ressu reMon i‐
tor InoperativeNo tor
InoperativeNo
Whe elSensors Whe
elSensors The
whee lsmoun tedd onothav eas uitable tire pre ssur esensor .
The tire pre ssur emonitor isdeac tivat ed.
X Moun twhee lswit hsuitable tire pre ssur esensor s.
The tire pre ssur emonitor isact ivat edauto maticallyaft erdrivin g
for afew min utes. Tir
eP ress. Moni‐ Tir
eP ress. Moni‐
tor Inoperative tor
Inoperative The
tire pre ssur emonitor isfault y.
X Vis itaq ualif iedspecialistwor kshop . Veh
icle Disp
laymes sages Poss
iblecauses/co nsequences and 0050 0050
Solu tions Shi
ftto'P' or Shi
ftto'P' or
'N' toStartEngine 'N'
toStartEngine You
haveattemp tedt os tart thee nginew itht he trans mis sion in
pos ition 005Eor005B.
X Sh ift thet rans mis sion topos ition 005Dor005C. App
lyBraketo App
lyBraketo
Shi ftfrom' P' Shi
ftfrom' P' You
haveattemp tedt os hift thet rans mis sion topos ition 005B, 005Eor
005C without depressing theb rak epedal .
X De pre sstheb rak epedal . To
Shiftout ofP To
Shiftout ofP
or N,Depress or
N,Depress
Bra keand Switch Bra
keand Switch
on Engine on
Engine You
haveattemp tedt os hift thet rans mis sion outofpos ition 005Dor
005C intoa nother trans mis sion position withthe engin eswit ched off.
X De pre sstheb rak epedal .
X Start thee ngine. Dri
ver'sDoorO pen Dri
ver'sDoorO pen
&T ransm ission Not &T
ransm ission Not
in PR isko fVehi‐ in
PR isko fVehi‐
cle RollingA way cle
RollingA way The
driver 'sdoor isno tfull yc losed and thet rans mis sion isin pos i-
ti on 005E, 005Cor005B.
Aw arning tone also soun ds.
G WAR
NING
The vehiclem ayrollaway.
The reisar isko fana cciden t.
X Whe npark ing thev ehicle, shi ftthet rans mis sion topos ition 005D. Onl
yS elect Park Onl
yS elect Park
(P) WhenV ehicl e (P)
WhenV ehicl e
is Stationary is
Stationary The
vehiclei sm oving .
X Pull overand stop thev ehicles afely assoo naspossibl e,payin g
att ention toroa dand traff icco nd ition s.
X Sh ift thet rans mis sion topos ition 005D. App
lyBraketo App
lyBraketo
Sel ect R Sel
ect R You
haveattemp tedt os hift from position 005Btopos ition 005E.
X De pre sstheb rak epedal .
X Sh ift thet rans mis sion topos ition 005E. 204
Disp
laymes sage sOn -boar dcomp uter andd ispla ys

Engine
Wa
rning/
ind icat or
lam p 00510051
Signa ltyp e
Possi blecauses/cons equences and0050 0050
Solu tions 00B9
0051
The yellow CheckEnginew arning lamp lightsupw hile thee ngine isrun ning.
Ther emaybe am alfunc tion,for exam ple:
R in thee ngine man agem ent
R in thef uel inject ion syst em
R in thee xhaust system
R in thei gn ition syst em
R in thef uel syst em
The emis sion limit values maybeexc eeded andthee ngine may beinemer -
gen cymod e.
X Visi taq ualifi edspec ialist workshop immediat ely.
In som estate s, you must immediat elyvisitaq ualifi edspec ialist workshop as
soon asthey ellow CheckEnginew arning lamp lightsup.This isdue tothel egal
requi rementsine ffect inthese state s.Ifin doubt ,che ck whet hersuchlegal reg-
ulati onsa pply inthes tate inwhic hyou are curren tlydriv ing. 00B6
0051
The yellow reservefuel warn inglamp lightsupw hile thee ngine isrun ning.
The fuel levelhas dro pped intot he res erverange.
X Refuel atthen ear est gas statio n. 00B6
0051
The yellow reservefuel warn inglamp flashes while thev ehicle isin mot ion.
In addit ion,the 00B9 CheckEnginew arning lamp maylight up.
The fuel fillercap isno tc losed correctlyorthef uel syst emisleak ing.
X Chec kthatthe fuel fillercap iscor rectlyclosed.
X Ifth ef uelfiller capisnot corr ectly closed :clo sethef uel fillercap.
X Ifth ef uelfiller capisclosed :visi taq ualifi edspec ialist workshop. 00AC
0051
The redcoolant warn inglamp lightsupw hile thee ngine isrun ningand the
coo lant temper aturegage isat thes tart of thes cale.
The temper aturesensor forthec oolant temper aturegage ismalf unctionin g.
The coolant temper atureisn olon ger bein gmonito red. Thereisar iskofeng ine
damag eifthe coo lant temper atureist oo high .
X Pull overand stop thev ehicle safe lyand switchoff thee ngine ,payin gatten-
tio nt or oad andtraff iccon dition s.Do notc ontin ue driv ingunde rany circum -
st anc es.
X Sec ure thev ehicle again stroll ing away (Ypage 134).
X Con sult aqualifi edspec ialist workshop. 214
Indica
torand warning lampsOn-boar dcomp uter and displa ys