2020 MERCEDES-BENZ SLC ECU

ATTEN
TIONA SSIST asses ses your level offati -
gu eo rlap sesinc once ntrati onbytaki ngthe
fol lowi ng crite riainto acco unt:
R your perso nal driving style,e .g.s tee ring
cha racteri stics
R jou rney detai ls,e .g.t ime ofdaya nd length
of jou rney
The functio nality ofATTEN TIONA SSIST is
res tricte dand warning smaybe delaye do rnot
occu ratall:
R ifthe roadcond ition ispo or, e.g.ift he sur-
fac eisu neven orifther earepothol es
R ifther eisas trong side wind
R ifyo uh avea dopted asporty driving style
wi th high corne ringspeedso rhighr ates of
acce lera tio n
R ifyo ua repre domina ntlydriving slow ertha n
50 mph (80km/h )orfas ter than112 mph
(180 km/h )
R ifyo ua recur rentl yusing CO MAND orma k-
ing atelep hone callwithi t
R ifthe time hasb eens etinco rrectly
R in acti vedriving situa tions, such aswhen
yo uc hange lanes orcha nge your spe ed
ATTEN TIONA SSIST isonl yana idto the driver .
It mig htnot alwa ysreco gnizefati gueo r
incr easing inattenti venessintime orfailto
reco gnizethem atall. The system isnot asub-
sti tute foraw ell-res ted and attentive driver .
Warni ngand display messagesinthe
multi function display X
Activa teATTEN TIONA SSIST using the on-
bo ardc omp uter(Ypa ge176 ).
If ATTEN TIONA SSIST isacti ve,youw illb e
wa rned nosoo ner than20m inutes afte r
yo ur jou rney hasb egun. Yout hen hearan
inte rmittent warning tonetwice and the
ATT ENTION ASSIST:TakeaB reak! ATT
ENTION ASSIST:TakeaB reak! mes-
sa ge appe arsi nt he mu ltifu nctio ndispl ay .
X Ifnece ssary,t ake abreak.
X Pre ssthe 0076 or0038 button toconfi rm
the mes sage.
On long jou rney s,take regular bre aks ingoo d
time toallo wy ourselft or estp rope rly.Ify ou
do not take abreak and ATTEN TIONA SSIST
sti llde tects increasing lapse sinc once ntra-
tio n,youw illb ew arned againa fter1 5m inutes
at the earliest. ATTEN
TIONA SSIST isres etwh en youc onti nue
yo ur jou rney andstarts asses sing your tire d-
ness againi f:
R yous witch offthe engine
R yout ake offyour sea tbelta nd open the
dri ver 'sdo or, e.g.for ac hange ofdri ver sor
to take abreak
Whe nATTEN TIONA SSIST isde acti vated ,the
00D7 symbo lapp ears inthe multifu nctio ndis-
pl ay inthe assista nce graphicsdispl ay.
Vehi cles with CO MA ND: ifaw arning isou t-
pu tint he mu ltifu nctio ndispl ay ,as ervice sta-
tio ns earch ispe rfor med inthe multimed ia
sy stem .You can select aservice stationa nd
nav igati on tothiss ervice stationw illt hen
be gin. Thi sfun ctio ncan be acti vated and
de acti vated inthe multimed iasystem . Lan
eTrack ingp ackag e
Ge neral notes The
Lane Tra cking packag econsi stsofBlind
Spo tAssist(Y page 164 )and Lane Kee ping
Assi st(Y page 166) .
Bli nd Spo tAssist Gen
eral notes
Bli nd Spo tAssistmoni torsthearea so ne ither
si de ofthe vehiclet hata re not visible to the
dri ver with two latera l,rea r-fa cing rada rs en-
sor s.Aw arning displ ayinthe exte riorm irrors
dra ws your atte ntiontov ehicles detecte din
the moni toredarea. Ifyo ut hen switch onthe
corr espond ingturn signa ltoc hange lane, you
wi llal so rece iveanoptica land audibl ew arn-
ing .
Bli nd Spo tAssistsupp orts youf rom aspeed of
ap pro xima tely2 0m ph(30 km/h ).
For Blind Spo tAssistto assist you, the rada r
sens orsystem mustbe opera tional . 16
4 Dri
ving sys temsDrivi ng andp arki ng

Disp
laying ther ange andc urrent fuel
consu mption X
Press the0059 or0065 buttono nthe steer -
in gw hee ltos elec tthe Tri p Tri
pmen u.
X Press 0063 or0064 tosel ectthe display
wit ha ppr oximat erange 0043 and curren tfue l
co nsump tion 0044.
Ap pro ximat erange 0043 that can becover ed
is cal cul ated acc ordin gtoy our curren tdriv-
in gs tyle and thea mo unt offue lint he tank .
If th ere ison lyas ma llamo untoffue llef ti n
th ef ueltan k,av ehicle bein grefuele d00A8
appe arsinst ead ofappr oximat erange 0043.
Rec uper ation display 0087sho wsyou if
en erg yhasbee nrecuper ated from the
ki ne tice nergyi no verrun mo deand savedin
th eb atte ry. Rec uper ation display 0087
depe ndso nthe engin einstal led and is
th ere fore nota vai lable inall veh icles .
Digit alsp eed ometer X
Press the0059 or0065 buttono nthe steer -
in gw hee ltos elec tthe Tri p Tri
pmen u.
X Press the0063 or0064 buttont os elec tthe
digi tals pe edo met er.
Ag earshiftrec ommen dation 0097may also
appe arinthed isplay.
Obs ervethe info rm ation ongear shiftrec om-
men dation when shiftin gm anually
(Y page 131).
Mer cedes -AMG SLC4 3:ag ear shiftrec om-
men dation issho wninthes tatu sb arofthe
mult ifunction display andnotint he digi tal
spe edo met erdis play.
Res etting value s X
Press the0059 or0065 buttono nthe steer -
in gw hee ltos elec tthe Tri p Tri
pmen u.
X Press the0063 or0064 buttont os elec tthe
fun ction that you wish tores et. X
Press 0076 toconfirm your selection .
X Press 0064 tosel ectYes Yes
andpress0076 to
co nfirm .
You canresetthev alu esofthef ollow ingf unc-
ti on s:
R Trip odo met er
R "Fr om Start "tripc om puter
R "Fr om Rese t"trip compu ter
R EC Od isplay
If you resetthev alu esintheE CO display, the
valu esinthe" From Start "tripc om putera re
also reset.Ify ou resetthev alu esinthe" From
St art "tripc om puter, thev alu esintheE CO dis-
play arealso reset. Na
viga tion sys temm enu
Disp laying naviga tion inst ructi ons In
theNav i Nav
imen u,them ultifun ction display
sho wsnav igat ioninst ruc tion s.
Obs ervethe addit ionalinfo rm ation onnav iga-
ti on intheD igital Ope rator's Man ualofthe
mult imediasyst em.
X Swi tcho nthe mult imediasyst em(seethe
Di git alOpe rator's Man ual)
X Press the0059 or0065 buttono nthe steer -
in gw hee ltos elec tthe Nav i Nav
imen u.
Rou tegui dance notactive 0043
Direc tion oftrave l
0044 Curr entroa d 172
Men
usands ubmen usOn-boa rdcom putera nd displa ys

X
Press the0038 button onthe steerin g
wheel.
X Confirm Yes Yes
with 0076.
The RACE TIMER interrupts timing ifyou stop
the vehicle andturn theSmart Keytoposition
0047 inthe ignition lock.Ifyou turn theSmart -
Key toposition 3and then press 0076tocon-
firm Start Start,t
imingiscont inued.
Resetting thecurr entlap
X Stop theRACE TIMER.
X Press the0059 or0065 button toselect
Reset Lap Reset
Lap.
X Press 0076toreset thelaptime to"0".
Deleting alllaps If
you switch offthe engine, theRACE TIMER is
reset to"0" after 30seconds .Alllaps are
deleted.
You cann otdelete individual storedlaps.Ifyou
have stopped 16laps, thecurren tlap does not
have tobe reset.
X Reset thecurren tlap.
X Press 0076toconf irmReset Reset.
Reset Race-Timer ? Reset
Race-Timer ?appears inthe multi-
funct iondisplay.
X Press the0064 button toselect Yes Yes
and
press the0076 button toconf irm.
All laps aredeleted.
Overall statistics 0043
RACETIME Roverall evaluation
0044 Total timedriven 0087
Average speed
0085 Dist ance covered
0083 Maximum speed
If you save atleast onelapand then stop
RACETIME R,an overall evaluation isavailabl e.
X Press the0059 or0065 button onthe steer-
ing wheel toselect theAMG AMG
menu.
X Press the0063 button repeatedly untilthe
overall evaluation appears.
Lap statistics 0043
Lap
0044 Lap time
0087 Average lapspeed
0085 Lap length
0083 Top speed during lap
This funct ionisonly availabl eify ou have
stored atleast twolaps andhave stopped the
RACETIME R.
X Press the0059 or0065 button onthe steer-
ing wheel toselect theAMG AMG
menu.
X Press the0063 button repeatedly untilthe
lap evaluation isshown.
Each lapisshown inas eparate submenu.
The fastest lapisindicated byflashing sym-
bol 0043.
X Press the0063 or0064 button toselect a
different lapevaluation. 182
Menus
andsubmenusOn-board computerand display s

Tire
s Di
spl aymes sages Po
ssible cause s/consequ encesa nd 0050 0050
So luti ons Che
ckTirePres‐ Che
ckTirePres‐
sur eSoon sur
eSoon Ca
nad aonly:
The tirepressu reloss wa rning system hasd etecte das igni fic ant
lo ss inpre ssu re.
Aw arning tone also sou nds .
Po ssi blec auses :
R youh avec hange dthe positio ns ofthe wheelsand tiresorins tal -
le dn ew wheelsand tires
R the tire pressu reinone ormor etiresh asdro pped
G WA
RNING
Ti re pre ssu res thatare too lowp oset he followi ng hazar ds:
R the ym ayburst, especially as the load and vehicles peed incr ease
R the ym aywearexce ssivel ya nd/or unevenl y,wh ich maygreatl y
imp airt ire tractio n.
R the drivin gc haracteri stics, aswellas stee ringa nd bra king ,may
be gre atlyimp aired
The reisar isko fana ccident.
X Stop thevehiclew ithou tmaking any sudd en stee ringo rbraking
ma neu vers.Pa ya ttentio ntot he trafficc ond itions asyoud oso.
X Secu rethe vehiclea gainst rol ling away (Y page 134 ).
X Ch eck thetiresand,ifn ece ssary,f ollowt he instructio nsfor aflat
tire (Ypage 253 ).
X Ch eck thetire pressu res and,ifn ece ssary,c orr ect the tire pres-
su re.
X Re sta rtthe tire pressu reloss wa rning system when the tire pres-
su re iscorr ect(Ypage 275 ). Che
ckTirePres‐ Che
ckTirePres‐
sur eThenR estar t sur
eThenR estar t
Run FlatIndica tor Run
FlatIndica tor Ca
nad aonly:
The tirepressu reloss wa rning system genera tedadispl ay mes sage
and hasn otbeen res tarted since.
X Set thecorr ecttire pressu reinallf ou rtire s.
X Re sta rtthe tire pressu reloss wa rning system (Ypage 275 ). Run
FlatIndica tor Run
FlatIndica tor
Ino perative Ino
perative Ca
nad aonly:
The tirepressu reloss wa rning system isfaulty.
X Visitaq ualifi ed speci alistw orksh op. Ple
ase Correct Ple
ase Correct
Tir ePressu re Tir
ePressu re USA
only:
The tirepressu reistoo lowi na tlea st one ofthe tires,or the tire
pre ssu rediffe renc ebetwe en the wheelsistoo great.
X Ch eck thetire pressu res atthe next opportu nity (Ypage 275 ).
X Ifnece ssary,c orr ect the tire pressu re.
X Re sta rtthe tire pressu remoni tor(Ypage 278 ). 20
2 Disp
laym essage sOn -boar dcomp uter andd ispla ys

Warning/
indic ator
lamp 00510051
Sign altype
Poss iblec ause s/cons equen cesand 0050 0050
Sol utions 00E9
0051
The redseat beltw arning lamp lights upafter theengine starts,assoon as
the drive r'sorthe front-passenge rdoor isclosed .
The drive rorfront passenger hasnotfastened theirseatbelt.
X Fasten yourseat belt(Y pag e42).
The warning lamp goesout.
There areobjects onthe front-passenge rseat.
X Remo vethe objects fromthefront-passenge rseat and stow them inas ecure
pla ce.
The warning lamp goesout. 00E9
0051
The redseat beltw arning lamp flashes and anintermittent audib lewarni ng
sound s.
The drive rorfront passenger hasnotfastened theirseatbelt.The vehicl eis
bei ng drive nfaster than15mph (25km/h )orh as brie flybeen drivenfaster
than 15mph (25km/h) .
X Fasten yourseat belt(Ypag e42).
The warning lamp goesoutand theintermittent warningtone cease s.
There areobjects onthe front-passenge rseat. Thevehicl eisb eing drive nfaster
than 15mph (25km/h )orh as brie flybeen drivenfaster than15mph
(25 km/h) .
X Remo vethe objects fromthefront-passenge rseat and stow them inas ecure
pla ce.
The warning lamp goesoutand theintermittent warningtone cease s. 210
Indi
cator andwarni nglampsOn-bo ardcomput erand displays

Safety
systems Warning/
indicator
lamp 00510051
Signal type
Possible causes/co nsequences and0050 0050
Solutions 0027004D
0051
0027 (USAonly)or004D (Canada only):thered brake system warning lamp
is lit while theengine isrunning. Awarning tonealsosounds.
G WARNING
There isnot enough brakefluidinthe brake fluidreservoir.
The braking effectmaybeimpaired.
There isar isk ofan accident.
X Pull over andstop thevehicle safelyassoon aspossible, payingatten tionto
road andtraffic condition s.Do not cont inue driving underanycircumst ances.
X Secure thevehicle against rollingaway(Ypage 134).
X Do not add brake fluid.Adding morewillnotcorrect themalfunction .
X Consult aquali fied specialist workshop.
X Observe theadditional displaymessages inthe multifunct iondisplay . 0027
0051
USA only: thered brake system warning lampislit while theengine isrun-
ning. Themultifunct iondisplay alsoshows adisplay message withthe0026
symbol.
The brake pads/linings havereached theirwear limit.
X Visit aquali fied specialist workshop. 0025
0051
The yellow ABSwarning lampislit while theengine isrunning.
ABS (anti-lock brakingsystem) ismalfunction ing.
If there isan additional warningtone,theEBD (electronic brakeforcedistribu-
tion) ismalfunction ing.
Other driving systems anddriving safetysystems mayalsomalfunction .
G WARNING
The brake system continues tofunct ionnormally, butwithout thefunct ionslis-
ted above. Thefront andrear wheels couldtherefore lockifyou perform afull
brake application, forexample.
The steerability andbraking characterist icsmay beseverely affected. Thebrak-
ing distance inan emergency brakingsituation canincrease.
If ESP ®
is not operational, ESP®
is unable tostabilize thevehicle.
There isan increased riskofskidding andanaccident.
X Observe theadditional displaymessages inthe multifunct iondisplay .
X Drive oncarefully.
X Visit aquali fied specialist workshop immediately.
If the ABS controlunit isdefective, thereisalso apossibili tythat other systems,
such asthe navigation systemorthe automatic transmission,willnotbeavaila -
ble. Indicator
andwarning lamps
211On-board computerand displays Z

Warning/
indic ator
lamp 00510051
Sign altype
Poss iblec ause s/cons equen cesand 0050 0050
Sol utions 00AC
0051
The redcoola ntwar ning lamp comes onwhi lethe engine isrunning.
The coola ntleve list oo low .
If the coola ntleve lisc orrect, theairflowtothe engine radiator may beblocked
or the electric engineradiator fanmay bedefective .
The coola ntistoo hotand theengine isno longer being coole dsuffi ciently .
X Observe theadditiona ldisp lay messa gesinthe multi function display.
X Pul lover and stop thevehicl esafel yand swi tch offthe engine, paying atten-
tion toroad andtraffic conditions.
X Secure thevehicl eagainst rolling awa y(Ypag e134).
X Leave thevehicl eand keep asafe dista ncefrom thevehicl euntil the engine
has coole ddown.
X Che ckthe coola ntleve land add coola nt,obser vingthewarni ngnotes
(Y pag e243) .
X Ifyou have toadd coola ntfrequ ently, havetheengine coolingsystem
checked.
X Make surethattheairsup plytothe engine radiator isnot blocked ,e.g. by
snow, slush orice.
X Do not start theengine againuntil thecoola nttempera turegage isbel ow the
H marking (Ypag e169) .Otherwi se,the engine couldbedama ged.
X Drive tothe neares tqualified speci alist worksho p.
X Avoid heavyloa dson the engine asyou doso, e.g. drivinginmountai nouster-
rain andstop-and-go traffic. 00AC
0051
The redcoola ntwar ning lamp comes onwhi lethe engine isrunning.
The coola nttempera turegage hasexceede dthe Hmarking (Ypag e169). The
airfl owtothe engine radiator may beblocked orthe coola ntleve lmaybe too
low .
G WARNING
The engine isnot being coole dsuffi ciently andmay bedama ged.
Do not drive when yourengine isoverhe ated.Thiscancaus esome fluidswhi ch
may have leaked into theengine compartment tocatch fire.
Steam fromtheoverhe atedengine canalsoc aus eserio usburns whichcan
occur justbyopeni ngthe hood.
There isar isk ofinjury .
X Observe theadditiona ldisp lay messa gesinthe multi function display.
X Pul lover and stop thevehicl esafel yand swi tch offthe engine, paying atten-
tion toroad andtraffic conditions.
X Secure thevehicl eagainst rolling awa y(Ypag e134) .
X Leave thevehicl eand keep asafe dista ncefrom thevehicl euntil the engine
has coole ddown.
X Che ckthe coola ntleve land add coola nt,obser vingthewarni ngnotes
(Y pag e243).
X Ifyou have toadd coola ntfrequ ently, havetheengine coolingsystem
checked. Indi
cator andwarnin glamps
215On-boardcomput erand displays Z

Tire
s Warn
ing/
in dic ato r
lamp 00510051
Sign altype
Po ssible cause s/consequ encesa nd 0050 0050
So luti ons 0077
0051
The yellow tire pressu remoni torwarning lamp (pres sure loss/m alfu nctio n)is
li t.
The tirepressu remoni torhasd etecte dalosso fpressu reinat leas to ne ofthe
tire s.
G WA
RNING
Ti re pre ssu res thatare too lowp oset he followi ng hazar ds:
R the ym ayburst, especially as the load and vehicles peed incr ease
R the ym aywearexce ssivel ya nd/or unevenl y,wh ich maygreatl yimp airt ire
tra ctio n.
R the drivin gc haracteri stics, aswellas stee ringa nd bra king ,maybe gre atly
imp aired
The reisar isko fana ccident.
X Stop thevehiclew ithou tmaking any sudd en stee ringo rbraking maneu vers.
Pa ya ttentio ntot he trafficc ond itions asyoud oso.
X Secu rethe vehiclea gainst rol ling away (Y page 134 ).
X Ob ser vethe additio nal disp laym essage sint he mu ltifu nctio ndispl ay .
X Ch eck thetiresand,ifn ece ssary,f ollowt he instructio nsfor aflatt ire
(Y page 253 ).
X Ch eck thetire pressu re(Y page 275 ).
X Ifnece ssary,c orr ect the tire pressu re. 0077
0051
The yellow tire pressu remoni torwarning lamp (pres sure loss/m alfu nctio n)
fla she sfor appro xim atelyone minute and thenrem ains lit.
The tirepressu remoni torisfaulty.
G WA
RNING
The system ispo ssi blyu nablet or eco gnizeorreg ister lowt ire pre ssu re.
The reisar isko fana ccident.
X Ob ser vethe additio nal disp laym essage sint he mu ltifu nctio ndispl ay .
X Visitaq ualifi ed speci alistw orksh opimm ediatel y. In
dic ator andwarninglamps
217On -bo ard compu terand displa ys Z