light MERCEDES-BENZ SLC 2020 Service Manual

R
Immedia telychange outofclothing which
has come intocontact withelectroly te.
R Ifan allergic reaction occurs,seekmedi-
cal attention immediately.
The rear-view mirrorandtheexterior mirroron
the driver's sideautoma ticallygointo anti-
glare mode ifthe follow ingconditions aremet
simul taneousl y:
R the ignition isswitched onand
R incident lightfrom headlampsstrikes the
sensor inthe rear-view mirror
The mirrors donot gointo anti-glare modeif
reverse gearisengaged orifthe interior light-
ing isswitched on. Parking
positionfor the exterio rmir-
ror onthe front-passenge rside
Setting andstoring theparking posi-
tion Usin
gthe memory button You
canstore theparking positionofthe front-
passe nger-side exteriormirrorusingmemory
button M0085.T hereverse gearmust notbe
engaged duringthe process.
X Make surethatthevehicle isstationary and
that theSmartKey isin positio n0048 inthe
ignition lock.
X Press button 0044for the exterior mirroron
the front-passenger side. X
Engage reverse gear.
The exterior mirroronthe front-passenger
side moves tothe preset parking position.
X Use button 0087toadjust theexterior mirror
to ap ositio nthat allows youtosee therear
wheel andthecurb.
The parking positioniss tored.
i If
you shift thetransmission toanother
positio n,the exterior mirroronthe front-
passe ngersidereturns tothe driving posi-
tion.
Usin greverse gear You
canadjust theexterior mirroronthe front-
passe ngersidetoap ositio nthat allows youto
see therear wheel onthat side assoon asyou
engage thereverse gear.Thissetting canbe
stored usingmemory buttonM0085.
X Ensure thattheSmartKey isin positio n0048
in the ignition lock.
X With theexterior mirroronthe front-
passe ngersideactivated, usebutton 0087to
adjust theexterior mirror.Therear wheel
and thecurb shoul dbevisib lein the exterior
mirror.
X Press memory buttonM0085 and one ofthe
arrows onbutton 0087within threeseconds.
The parking positioniss tored ifthe exterior
mirror doesnotmove.
X Ifthe mirror moves outofpositio n,repea t
the steps. 94
MirrorsSeats,
steerin gwheeland mirrors

Ext
erio rlight ing Gener
alnot es
For reas onso fsafe ty,Mer cedes-Ben zrecom-
men dsthat you drivewiththel ight sswit ched
on even duringthe dayti me.Insom ecoun -
tr ies, oper ationofthe headlam psvar ies due to
legal requirementsand self -impose doblig a-
tio ns. Set
tingthe ext erio rlight ing
Set tingo ptions Ex
terior light ingcan beset usin g:
R thel ight switch
R thec om binatio nswit ch (Ypage 99)
R theo n-bo ard com pute r(Y page 177)
Light switch Oper
ation 0047
0063
Left-han dstandi ng lamps
0048 0064
Right-hand standi nglamps
0049 0060
Parkinglamps ,lice nsep latea nd
ins trumen tclus terlight ing
004A0057 Automatic hea dlam pm ode,contro l-
le db ythe light sens or
004B 0058
Low-beam/hi gh-b eamh eadlam ps
0084 005E
Rear fog lamp
If yo uh earaw arning tone when youl eave the
veh icle, the lights maystill be switch edon.
X Tu rn the light switch to0058. The
exte riorlighti ng (excep tthe parking /
sta ndi ng lamps )switch esoff automa ticallyi f
yo u:
R rem ove theSma rtKeyfrom theigniti onlock
R op en the driver 'sdo or wh ilet he Sma rtKeyis
in po sitio n0092 inthe igniti onlock
Au tomati cheadlamp mode G
WA
RNING
Whe nthe light switch isset to0058,t he
lo w-b eamh eadlam psma ynotbe switch ed
on automa ticallyi fther eisf og ,snow or
othe rcauses ofpoor vis ibility duet ot he
we ath ercond itions such asspr ay.T he re isa
ris ko fana ccident.
In such situa tions, turn thelight switch to
0058.
The automa tichea dlam pfeature isonl yana id.
The driver isres ponsi blef or the vehicle's light-
ing atallt ime s.
0058 isthe preferred light switch positio n:
R The light setti ngisau toma ticallys electe d
acco rding tothe brightne ssofthe ambient
li ght (excep tion:po or vis ibility duet o
we ath ercond itions such asfog ,snow or
spr ay).
R Wi th the Sma rtKeyinp ositio n 0047 inthe igni-
tio nlock: the parking lamps ares witch edon
or off automa ticallyd epending on the bright-
ness ofthe ambient light.
R Wi th the enginerunning :ify ou have acti va-
ted thedaytime running lamps functio nvia
the on-b oard comp uter,the daytime running
la mps orthe parking lamps andthelow-
be am headlam psares witch edon oroff
au toma ticallyd epending on the brightne ss
of the ambient light.
X To
switcho nauto matic headlamp mode:
turn thelight switch to0058.
Can ada only:
The daytime running lamps improve thevisibil-
ity ofyour veh icled uring the day.The daytime
ru nning lamps functio nisr equired bylawi n
Ca nad a.Itcanno tther eforebe deacti vated .
Whe nthe eng ineisrunning andthevehiclei s
sta tionar y:ifyo us hift the automa tictrans mis-
si on from adriving positio nt op ositio n 005D the
da ytime running lamps orlow-b eamh ead-
la mps goouta fte r3m inutes. Ex
teri orlighti ng
97Lights andwind shield wipers Z

When
theengine isrunn ing,thevehicle issta-
tionary andinbright ambient light:ifyou turn
the light switch tothe 0060 position, theday-
time runninglamps andparking lampsswitch
on.
If the engine isrunn ingand youturn thelight
switch to0058,t hemanual settings take prec-
edence overthedaytime runninglamps.
USA only:
The daytime runninglamps improve thevisibil-
ity ofyour vehicle duringtheday. Todo this,
the daytime runninglamps functionmust be
switched onusing theon-board computer
(Y page 177).
If the engine isrunn ingand youturn thelight
switch to0060 or0058,t hemanual settings
take preceden ceover thedaytime running
lamps.
Low-beam headlamps G
WARNIN
G
When thelight switch isset to0058,t he
low-beam headlamps maynotbeswitched
on automatically ifthere isfog, snow or
other causes ofpoor visibility duetothe
weather conditionssuch asspray. Thereisa
risk ofan accident .
In such situation s,turn thelight switch to
0058.
Even ifthe light sensor doesnotdetect thatit
is dark, theparking lampsandlow-beam head-
lamps switch onwhen theignition isswitched
on and thelight switch isset tothe 0058 posi-
tion. Thisisap articularly usefulfunctioninthe
event ofrain andfog.
X To
switch onthe low-beam headlamps:
turn theSmart Keytoposition 0048inthe igni-
tion lock orstart theengine.
X Turn thelight switch to0058.
The green 0058indicator lampinthe instru-
ment cluster lightsup.
Rear foglamp
The rear foglamp improves visibilityofyour
vehicle forthe traff icbehind inthe event of
thick fog.Please takenoteofthe count ry-spe-
cific regulations forthe use ofrear foglamps. X
To switch onthe rear foglamp :turn the
Smart Keytoposition 0048inthe ignition lock
or start theengine.
X Turn thelight switch to0058 or0058.
X Press the005E button .
The yellow 005Eindicator lampinthe instru-
ment cluster lightsup.
X To switch offthe rear foglamp :press the
005E button .
The yellow 005Eindicator lampinthe instru-
ment cluster goesout.
Park inglamp s
! If
the batter ycharge isvery low,thepark-
ing lamps orstandin glamps areautomati-
cally switched offtoenable thenext engine
start .Always parkyourvehicle safelyandin
aw elllitarea, inaccordan cewith therele-
vant legal stipulations. Avoidusingthe0060
parking lampsoveraperiod ofseveral
hours. Ifpossible, switchonthe right- hand
0064 orleft- hand 0063 standin glamps.
X To switch on:turn thelight switch to0060.
The green 0060indicator lampinthe instru-
ment cluster lightsup.
Stand inglamp s
Switc hingonthe standin glamps ensures the
corr esponding sideofthe vehicle isillumina-
ted.
X To switch onthe stand inglamp s:the
Smart Keyisnot inthe ignition lockoritis in
position 0092inthe ignition lock.
X Turn thelight switch to0063 (left-hand side
of the vehicle) or0064 (right- handsideof
the vehicle). 98
Exterior
lightingLightsandwindshield wipers

Comb
inationswit ch 0043
High-beam headlam ps
0044 Turn signal,righ t
0087 High-beam flasher
0085 Turn signal,left
X To ind icat ebriefly :pres sthe com binatio n
swit chbrie flytothep res sure pointint he
dire ction ofarr ow 0044or0085.
The correspon dingturns ign alflas hes three
tim es.
X To ind icat e:pres sthe com binatio nswit ch
beyon dthe pres sure pointint he dire ction of
arr ow 0044or0085.
X To
swit chon theh igh -bea mheadla mp s:
tur nthe light switchto0058 or0058.
X Pre ssthec om binatio nswit ch beyon dthe
pres sure pointint he dire ction ofarr ow 0043.
In the0058 position,theh igh-be am head-
lamps areonlyswit ched on when itis dark
and thee nginei sr unnin g.
The blue 0057 indicat orlamp inthei nstru-
men tclus terlight supw hen theh igh-be am
headlam psare swit ched on.
X To
swit choff theh igh -bea mheadla mp s:
mov ethe com binatio nswit ch back toits
no rm alposi tion.
The blue 0057 indicat orlamp inthei nstru-
men tclus terg oes out. Ha
zard war ning lamps X
To
swit chon theh azardw arning lamps:
pres sbutto n0043.
All turns ign als flas h.Ifyou nows witch on a
tur ns ign alusin gthe com binatio nswit ch,
on lythet urns ign allamp onthec orres pon d-
ing side ofthev ehicle willflash.
X To
swit choff theh azardw arning lamps:
pres sbutto n0043.
The hazard warn inglamps automaticall y
swit chon if:
R an air bag isdeplo yedor
R thev ehicle deceler atesrapid lyfrom aspee d
of abov e45m ph(70 km/h) and comestoa
st and still
The hazard warn inglamps switchoff auto mati-
cally ifth ev ehicle reac hesaspee dofabov e
6m ph(10 km/h) again afterafull brak eappli-
cat ion.
i The
hazard warn inglamps still oper ateif
th ei gn ition isswit ched off. Corn
ering ligh tfun ction
The cornerin glight function impr ovesthe illu-
min atio nofthe road overaw ideanglein the
dire ction you areturnin g,en ablin gbette rv isi-
bilit yint ight ben ds,forexample .The cor ner-
ing light function can onlybe act ivat edwhen
th el ow- beam headlam psare swit ched on.
Activ e:
R ifyou aredrivingatspee dsbelow 25mph
(40 km/h) and switchon thet urns ign alor
tur nthe steer ing wheel
R ifyou aredrivingatspee dsbet ween 25mph
(40 km/h) and 45mph (70km/h) and turn
th es teer ing wheel Ext
erior light ing
99Lightsand winds hieldwiper s Z

The
corn ering lampmayremain litfor ashort
time, butisautomatically switchedoffafter no
more thanthree minutes.
Cornering lightfunction withtraffic circle
function:
The corn ering lightfunct ionisactivated on
both sides before enteringatraff iccircle
through anevaluation ofthe current GPSposi-
tion ofthe vehicle. Itremains activeuntilafter
the vehicle hasleftthetraff iccircle. Inthis
way, pedestrians crossingthe road, forexam-
ple, areilluminated byyour vehicle ingood
time. Active
lightfunction
The active lightfunct ionisas ystem that
moves theheadlamps accordingtot he steer-
ing movemen tsof the front wheels. Inthis
way, relevant areasremain illuminated while
driving. Thisallows youtorecogn izepedes-
trians, cyclists andanimals sooner.
Active: whenthelights areswitched on.
Vehicles withLane Keeping Assist:the active
light funct ionevaluates thecourse ofthe lane
in which youaredriving andpre-empt ively
cont rolstheactive lightfunct ion. Adapt
iveHighbeam Assist
General notes You
canusethis funct iontoset the headlamps
to change between lowbeam andhigh beam
automatically. Thesystem recognizesvehicles
with their lights on,either approaching from
the opposite direction ortraveling infront of
your vehicle, andconsequent lyswitches the
headlamps fromhighbeam tolow beam.
The system automatically adaptsthelow-beam
headlamp rangedepending onthe distance to
the other vehicle. Oncethesystem nolonger
detect sany other vehicles, itreactivat esthe
high-beam headlamps.
The system's opticalsensorislocated behind
the windshield neartheoverhead control
panel. Import
antsafety notes G
WARNIN
G
Adaptive Highbeam Assistdoesnotrecog-
nize road users:
R who have nolights, e.g.pedestrians
R who have poorlighting, e.g.cyclists
R whose lighting isblocked, e.g.byab arrier
On very rareoccasions ,Adaptive Highbeam
Assist mayfailtorecogn izeother roadusers
that have lights, ormay recogn izethem too
late. Inthis, orinsimilar situations, theauto-
matic high-beam headlamps willnotbe
deactivated orwill beactivated regardless.
There isar isk ofan accident .
Always carefully observethetraff iccondi-
tions andswitch offthe high-beam head-
lamps ingood time.
Adaptive Highbeam Assistcannottake into
account road,weather ortraff iccondit ions.
Adaptive Highbeam Assistisonly anaid. You
are responsible foradjusting thevehicle's
lighting tothe prevailing light,visibility and
traff iccondit ions.
In particular, thedetect ionofobstacles canbe
restr icted ifthere is:
R poor visibility, e.g.due tofog, heavy rainor
snow
R dirt onthe sensors orthe sensors are
obscured
Switching AdaptiveHighbeam Assist
on/off X
To switch on:turn thelight switch to0058.
X Press thecombinat ionswitch beyond the
pressure pointinthe direction ofarrow 0043.
The 00CE indicator lampinthe multifunct ion
display lightsupwhen itis dark andthelight
sensor activates thelow-beam headlamps.
If you aredriving atspeeds aboveapprox-
imately 16mph (25km/ h):
The headlamp rangeisset automatically
depending onthe distance between the
vehicle andother roadusers.
If you aredriving atspeeds aboveapprox-
imately 19mph (30km/ h)and noother
road users havebeen detect ed: 100
Exterior
lightingLightsandwindshield wipers

The
high-beam headlamps areswitched on
automatically. The0057 indicator lampin
the instr ument cluster alsolights up.
If you aredriving atspeeds belowapprox-
imately 16mph (25km/ h)or other road
users havebeen detect edorthe roads are
adequa telylit:
The high-beam headlamps areswitched off
automatically. The0057 indicator lampin
the instr ument cluster goesout.The00CE
indicator lampinthe multifunct iondisplay
remains lit.
X To switch off:move thecombinat ion
switch backtoits normal position ormove
the light switch toanother position.
The 00CE indicator lampinthe multifunct ion
display goesout. Interior
lighting Overview
ofinterior lighting Overhead
controlpanel
0043 003D Switch esthe left- hand reading lamp
on/of f
0044 0033 Switch esthe automatic interiorlight-
ing cont rolon/of f
0087 003D Switch esthe right- hand reading lamp
on/of f
0085 004A Switch esthe inter iorlighting on/off Interior
lighting control
General notes In
order toprevent thevehicle's batteryfrom
discharging, theinter iorlighting functionsare
automatically deactivatedaftersome time, unless
theSmart Keyisin position 0048inthe
ignition lock.
The color andbrightn essofthe ambient light-
ing are setviathe multimedia system
(Y page 178).
Automa ticinterior lighting control X
To switch on:setthe switch tothe cent er
position.
When theautomatic interiorlighting control
is switched on,the switch isflush withthe
overhead controlpanel.
X To switch off:setthe switch tothe 0033
position.
The inter iorlighting automatically switcheson
if you:
R unlock thevehicle
R open adoor
R remove theSmart Keyfrom theignition lock
The inter iorlighting isswitched onfor aset
time when theSmart Keyisremoved fromthe
ignition lock.Youcanactivate thisdelayed
switch- offusing theon-board computer
(Y page 178). Replacing
bulbs Import
antsafety notes G
WARNIN
G
Bulbs, lampsandconn ector scan get very
hot when operating. Ifyou change abulb,
you could burnyourself onthese compo-
nent s.There isar isk ofinjury.
Allow these compon entstocool down
before changing abulb.
Vehicles withhalogen lamps
Do not use alamp thathasbeen dropped orif
its glass tubehasbeen scratc hed.
The lamp mayexplode if:
R you touch it
R itis hot
R you drop it
R you scratc hit
Only operate bulbsinenclosed lamps
designed forthat purpose. Onlyinstall spare Replacing
bulbs
101Lightsandwindshield wipers Z

bulbs
ofthe same typeandthespecified volt-
age.
Marks onthe glass tubereduce theservic elife
of the bulbs. Donot touch theglass tubewith
your bare hands. Ifnec essary, cleantheglass
tube when coldwithalcohol orspirit andrubit
off with alint- free cloth.
Prot ectbulbs frommoist ureduring operation .
Do not allow bulbs tocome intoc ontact with
liquids.
Only replace thelamps listed(Ypage 102).
Have thebulbs thatyoucann otreplace your-
self replaced ataq ualified specialist work-
shop.
If you require assistan cereplacing lamps,con-
sult aqualified specialist workshop.
If the new lamp stilldoes notlight up,consult
aq ualified specialist workshop.
Bulbs andlamps areanimport antaspect of
vehicle safety.Youmust therefore make sure
that these function correctlyat all times. Have
the headlamp settingchec kedregularly.
Vehicles withLEDhead lamp s
The frontand rear light cluster sofyour vehicle
are equipped withLEDlight bulbs. Donot
replace thebulbs yourself. Contactaqualified
specialist workshopwhich hasthenecessary
specialist knowledge andtools tocarry outthe
work required. Overview:
replacingbulbs/bulb
typ es Halogen
headlamps
0043 Low-beam headlamp: H755W
0044 High- beam headlamp: H755W Repla
cingthefront bulbs
Removing/m ountingthecover inthe
front wheel housing X
To rem ove: switch offthe lights.
X Turn thefron twheels inwards.
X Slide cover 0043upand remov eit.
X To install: reinsertcover 0043and slide it
down untilitengages.
Low-beam headlamp s(halogen head-
lamp s) X
Remove thecover inthe fron twheel hous-
ing (Ypage 102).
X Turn housing cover0043count er-clock wise
and pullitout.
X Push bar0044upwards.
X Remove connector0087with thebulb.
X Pull thebulb outofcon nector0087.
X Inser tthe new bulb intoc onnec tor0087and
place inthe brack etofbar 0044.
Make surethatthebulb isposition edcor-
rect ly.
X Push bar0044downwards. 102
Repla
cingbulbsLights andwindshield wipers

X
Attach housing cove r0043 and turn itclo ck-
wi se unti lite ngages.
X Re place thecove rint he front wheelh ou sing
(Y page 102 ).
Hig h-be amheadlamps (haloge nh ead-
lamps )/co rne ringlamps (Bi-Xe non
hea dlamps ) X
Swi tch offthe lights .
X Ope nthe hoo d.
X Tu rn hou sing cove r0043 cou nter-cl ockwise
and pullit ou t.
X At the bulbhol der,pu sh the bulbup wa rds ,
di sconne ctitand pullit ou to fbulb
hol der0044.
X Inse rtthe new bulbinto bulbhol der0044 at
the top, push itdo wn and securei tinp lace .
X Attach housing cove r0043 and turn itclo ck-
wi se unti lite ngages.
Si de marke rlamps (haloge nh ead-
lamps ) Due
tothei rloc ati on, have the bulbsi nt he
si de marker lamp change dataq ualifi ed spe -
cia list wo rksh op. Win
dshi eldw ipers Sw
itchin gthe winds hieldwipers
on /o ff
! Do
not opera tethe windsh ield wipe rs
wh en the windsh ield isdry ,ast hisc ould
da ma gethe wipe rb lade s.Mor eover ,dust
tha thas col lected onthe windsh ield can
scra tchthe glas sifw ipingt ake splace when
the windsh ield isdry . If
it is nece ssaryto sw itch onthe windsh ield
wi pe rs indry weath ercond itions, alwa ysuse
wa she rfluid wh en opera ting thewindsh ield
wi pe rs.
! If
the windsh ield wipe rs leav es me arso n
the windsh ield afte rthe veh icleh asbeen
wa she dina na utoma ticcar wash, waxo r
othe rres idue sm aybe the reason forthis.
Cl ea nt he windsh ield using washe rfluid
afte rwashing the vehiclei na na utoma tic
car wash.
! Inter
mitte ntwiping with rain sens or:due
to optica linfl uences andthewindsh ield
be comi ngdirty indry weath ercond itions,
the windsh ield wipe rs ma ybea ctivated
ina dve rtentl y.Thi scouldthen dama gethe
wi ndsh ield wipe rb lade so rscra tch the wind-
shi eld.
For thisreason, yous houlda lway ss witch
off the windsh ield wipe rs indry weath er. Co
mbi nati onswitch
0047 003F Windsh ield wipe ro ff
0048 0062 Intermitte ntwipe ,low (rainsens or
set tolows ens itivity )
0049 0063 Intermitte ntwipe ,high( rain sens or
set tohigh sens itivity )
004A 00AA Continu ousw ipe, slow
004B 00A9 Continu ousw ipe, fas t
0084 00D3 Singlewipe /00D4 Wipest he wind-
shi eldu sing washe rfluid
If the wipe rb lade sa rewo rn, the windsh ield
wi llno longe rbew iped pro perly.Thisc ould
pre vent youf rom obser ving thetrafficcond i-
tio ns. Win
dshi eldw ipers
103Lights andwind shield wipers Z

Problems
withthewindshield wipers Problem
Possible
causes/co nsequences and0050 0050
Solutions The
windshield wipers
are jammed. Leaves
orsnow, forexample, maybeobstruct ingthe windshield
wiper movement .The wiper motor hasbeen deactivated.
X For safety reasons, youshould remove theSmartK eyfrom the
ignition lock.
or X Switch offthe engine usingtheStart /Stopbutton andopen the
driver's door.
X Remove thecause ofthe obstruct ion.
X Switch thewindshield wipersbackon. The
windshield wipers
fail completely. The
windshield wiperdriveismalfunction ing.
X Select another wiperspeed onthe combination switch.
X Have thewindshield wiperscheckedataq uali fied specialist
workshop. The
windshield washer
fluid from thespray noz-
zles nolonger hitsthe
cent erofthe wind-
shield. The
spray nozzlesare misaligned.
X Have thespray nozzlesadjusted ataq uali fied specialist work-
shop. Windshield
wipers
105Lightsandwindshiel dwipers Z

USA
only
0043 Sets thetemperature (Ypage 111)
0044 Switches themaximum coolingMAXCOOL onoroff (Ypage 113)
0087 Sets theairdistribution (Ypage 112)
0085 Defrosts thewindshiel d(Ypage 112)
0083 Switches coolingwithairdehumid ificationon/off(Ypage 110)
0084 Switches <0044004C00550010005500480046004C005500460058004F00440057004C0052
0051[ modeon/off (Ypage 114)
006B Sets theairflow (Ypage 112)
006C Switches therear window defroster on/off(Ypage 113) Notes
onusing theair-conditioning
system
Air-conditio ningsystem Below,
youcan find anumber ofnotes and
recommendations tohelp youusetheair-con-
ditioning systemoptimally .
R Switch oncooling withairdehumid ification
using the005A button. Theindicator lampin
the 005A button lightsup.
R Set thetemperature to72 ‡(22 †).
R Recommendation forairdistribution in
winter: setthe 009B and0061 settings.
Recommendation forairdistribution in
summer: setthe 009C setting. R
Only usethe"Windshie lddefrosting" func-
tion briefly untilthewindshiel disc lear
agai n.
R Only use<0044004C00550010005500480046004C005500460058004F00440057004C0052
0051[ modebriefly,e.g.
if there areunpleasa ntoutside odorsor
when inat unnel. Thewindows couldother-
wise fogup,since nofresh airisdrawn into
the vehicle in<0044004C00550010005500480046004C005500460058004F00440057004C0052
0051[ mode.
ECO start /stop function During
automatic engineswitch-off, thecli-
mate controlsystem onlyoperates ata
reduced capacity. Ifyou require fullclimate
cont rolcapacity, theECO start/st opfunction
can bedeactivated bypressing theECO but-
ton (Ypage 122). Overview
ofclimat econtrol systems
107Climat econtrol