light MERCEDES-BENZ GLA 2020 Service Manual

If
you come intocontact withtheelectro-
lyte, observe thefollow ing:
R Rinse offthe electroly tefrom yourskin
immedi atelywithwater.
R Immedia telyrinse theelectroly teout of
you reyes thoroughl ywith clean water.
R Ifthe electroly teisswal lowe d,immedi -
ately rinse yourmouth outthoroughl y.Do
not induce vomiting.
R Ifelectroly tecomes intocontact withyour
skin orhair orisswal lowe d,seek medica l
attention immediately.
R Immedia telychange outofclothing which
has come intocontact withelectroly te.
R Ifan allergic reaction occurs,seekmedi-
cal attention immediately.
The "Automatic anti-glaremirrors"function is
only availableifthe vehicle isequi pped with
the "Mirro rspackage ".
The rear-view mirrorandtheexterior mirroron
the driver's sideautoma ticallygointo anti-
glare mode if:
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 You
cansetthe front-passenger sideexterior
mirror suchthatyoucan seetherear wheel on
that side assoon asyou engage reverse gear.
You canstore thispositio n. 0043
Button forthe driver's sideexterior mirror
0044 Button forthe front-passenger sideexte-
rior mirror
0087 Button forthe exterior mirrorsetting
0085 Memory buttonM
X Make surethatthevehicle isstationary .
X Turn theSmartKey topositio n0048 inthe igni-
tion lock orstart theengine (Ypage 125).
X Press button 0044.
X Engage reverse gear.
The exterior mirroronthe front-passenger
side moves tothe defau ltparking position.
X Use button 0087toadjust theexterior mirror
to apositio nthat allows youtosee therear
wheel andthecurb.
The parking positionis stored.
i If
you shift thetransmission toanother
positio n,the front-passenger sideexterior
mirror returns tothe driving position.
Call ingupastored parking position
setting X
Turn theSmartKey topositio n0048 inthe igni-
tion lock (Ypage 125).
X Adjust thefront-passenger sideexterior mir-
ror using thecorresponding button
(Y page 98).
X Engage reverse gear.
The exterior mirroronthe front-passenger
side moves tothe stored parking position.
The exterior mirroronthe front-passenger side
moves backtoits origina lpositio n:
R as soon asyou exceed aspeed of9mph
(15 km/h )
R abou tten seconds afteryouhave disen-
gage dreverse gear
R when youusebutton 0043toselect theexte-
rior mirror onthe driver's side 100
MirrorsSeats,
steerin gwhe eland mirrors

Ext
erio rlight ing Gener
alnot es
For reas onsof safe ty,Mer cedes-Ben zrec om-
men dsthat you drivewith thelight sswit ched
on even duringth edayti me.Insom ecoun -
tr ies, oper ationof theheadlam psvar ies due to
legal requirementsand self-impose doblig a-
tio ns. Set
tingth eext erio rlight ing
Set tingopt ions Ex
terior light ingcan beset usin gth e:
R light switch
R com binatio nswit ch(Ypage 104)
R on -bo ard com pute r(Y page 199)
Light switch Oper
ation 0047
0063
Left-han dstandi nglamps
0048 0064
Right-hand standi nglamps
0049 0060
Parkinglamps ,lice nseplat eand
ins trumen tclus terlight ing
004A 0058
Automat icheadlam pmod e,con trol-
led bythelight sensor
004B0058 Low-beam/ high-beam headlam ps
0084 005E
Rearfoglamp
006B 005A
Foglamp (onlyveh icleswith fron tfog
lamps )
If you hear awarn ingtone when youleave the
veh icle,th elight smay still be swit ched on.
X Turn thelight switchtothe0058 position. The
exterio rlight ing(excep tth epark ing/
st andi nglamps )swit ches off auto maticall yif
you:
R rem ove theSm artKey from theign ition lock
R open thedriv er'sdoor withtheSm artKey in
posit ion005A
Aut oma tichea dlamp mod e
0058 isthepref erred light switchposit ion:
R The light settingis auto maticall yselec ted
acc ording tothebrig htnes sof theambie nt
light (excep tion:poor visibilit ydue to
weat hercondition ssuc has fog ,sn ow or
spr ay).
R Wit hth eSm artKey inposit ion0047intheign i-
tio nloc k:thepark inglamps areswit ched on
or off auto maticall ydepen dingon thebrig ht-
nes sof theambie ntlight .
R Wit hth eeng inerunning:ifyou have activa-
te dth eDay timeRun ningLig hts Day
timeRun ningLig hts function
via theon -bo ard com puter,thedayti merun-
nin glamps orthepark inglamps andthe
low- beam headlam psare swit ched on oroff
auto maticall ydepen dingon thebrig htnes s
of theambie ntlight .
X To
swit chon theau tom atic hea dlamp
mod e:tur nth elight switchtothe0058
posit ion. G
WAR
NING
When thelight switchisset to0058, the
low- beam headlam psmay notbe swit ched
on auto maticall yif th ere isfog ,sn ow or
ot her caus esofpoor visibilit ydue tothe
weat hercondition ssuc has spr ay. Ther eis a
risk ofan acc iden t.
In suc hsit uatio ns,tur nth elight switchto
0058.
The auto maticheadlam pfeat ure ison lyan aid.
The driverisres pon sible fortheveh icle'slight -
ing atall tim es.
Cana daonly:
The dayti merunninglamps improvethevisi bil-
ity ofyour vehicle durin gth eday. Thedayti me
run ninglamps function isrequi redbylaw in
Canada. Itcan notth eref orebedeac tivate d.
When theeng ineisrun ningand theveh icle is
st atio nary:ifyou shiftth eauto matictrans mis-
sion from adriv ingposit iontoposit ion005Dthe 102
Ext
erior lightingLight sand windsh ieldwiper s

daytime
runninglamps orlow-beam head-
lamps goout after 3minut es.
When theengin eis runn ing,thevehicle issta-
tion aryand inbright ambient light:ifyou turn
the light switch tothe 0060 position ,the day-
time runninglamps andparkin glamps turnon.
If the engin eis runn ingand youturn thelight
switch tothe 0058 position ,the manual set-
tin gs take preceden ceover thedaytime run-
ning lamps.
USA only:
The daytime runninglamps improve thevisibil-
ity ofyour vehicle duringtheday. Todo this,
the daytime runninglamps function must be
switch edon using theon-board comput er
(Y page 199).
If the engin eis runn ingand youturn thelight
switch tothe 0060 or0058 position ,the man-
ual sett ings take preceden ceover thedaytime
runn inglamps.
Low-beam headlamp s
Even ifthe light sensor doesnotdetec tthat it
is dark, theparkin glamps andlow-beam head-
lamps switch onwhen theignit ionisswitch ed
on and thelight switch isset tothe 0058 posi-
tion .This isapartic ularly useful function inthe
event ofrain andfog.
X To
switch onthe low-beam headlamp s:
turn theSmart Keytoposition 0048inthe igni-
tion lock orstart theengin e.
X Turn thelight switch to0058.
The green 0058indicat orlamp inthe instru-
ment cluster lightsup.
Front foglamp s
In con dition swhere visibility ispoor dueto
fog, snow orrain, thefoglamps improve visi-
bility aswell asmakin git easier forother road
users tosee you. They canbeoperated
toget herwith theparkin glamps ortoget her
with theparkin glamps andlow-beam head-
lamps.
X To switch onthe foglamp s:turn the
Smart Keytoposition 0048inthe ignit ionlock
or start theengin e.
X Turn thelight switch to0058 or0058. X
Press the005A button.
The green 005Aindicat orlamp inthe instru-
ment cluster lightsup.
X To switch offthe foglamp s:press the
005A button.
The green 005Aindicat orlamp inthe instru-
ment cluster goesout.
Rear foglamp
The rear foglamp improves visibilityofyour
vehicle forthe trafficbehind inthe event of
thic kfog. Please takenoteof the count ry-spe-
cific regulations forthe use ofrear foglamps.
X To switch onthe rear foglamp :turn the
Smart Keyinthe ignit ionlock toposition 0048
or start theengin e.
X Turn thelight switch to0058 or0058.
X Press the005E button.
The yellow 005Eindicat orlamp inthe instru-
ment cluster lightsup.
X To switch offthe rear foglamp :press the
005E button.
The yellow 005Eindicat orlamp inthe instru-
ment cluster goesout.
Par king lamp s
! If
the batte rycharge isvery low,thepark-
ing lamps orstan ding lamps areautomati-
cally switch edoff toenable thenextengin e
start .Always parkyourvehicle safelyandin
a well litarea, inaccor dance withtherele-
vant legal stipulation s.Avoid usingthe0060
parkin glamps overaperiod ofseveral
hours. Ifpossible, switchonthe right -hand
0064 orleft- hand 0063 standing lamps.
X To switch on:turn thelight switch to0060.
The green 0060indicat orlamp inthe instru-
ment cluster lightsup.
Sta nding lamps
Switc hingonthe stan ding lamps ensures the
corr espondin gside ofthe vehicle isillumina-
ted.
X To switch onthe stand inglamp s:the
Smart Keyisnot inthe ignit ionlock oritis in
position 005Ainthe ignit ionlock .
X Turn thelight switch to0063 (left-hand side
of the vehicle) or0064 (right- handsideof
the vehicle). Exter
iorlighting
103Lightsandwindshield wipers Z

Comb
inationswit ch X
To ind icat ebr iefly :pres sth ecom binatio n
swit chbrie flytothepres sure pointin the
dire ction ofarr ow 0044or0085.
The correspon dingtur nsign alflas hes three
tim es.
X To ind icat e:pres sth ecom binatio nswit ch
beyon dth epres sure pointin thedire ction of
arr ow 0044or0085.
X To
swit chon thehigh -beamhea dlamp s:
tur nth elight switchto0058 or0058.
X Pre ssthecom binatio nswit chbeyon dth e
pres sure pointin thedire ction ofarr ow 0043.
The high -beam headlam psonlyswit chon in
th e0058 positionif th elow- beam head-
lamps areon.
The blue 0057 indicat orlamp intheins tru-
men tclus terlight sup when thehigh -beam
headlam psare swit ched on.
X To
swit choff thehigh -beamhea dlamp s:
mov eth ecom binatio nswit chback toits
no rm alposi tion.
The blue 0057 indicat orlamp intheins tru-
men tclus tergoes out.
X To swit chon thehigh -beamfla sher :pull
th ecom binatio nswit chinthedire ction of
arr ow 0087. Ha
zard war ning lamps X
To
swit chon theha zard war ning lamps:
pres sbut ton0043.
All turnsign alsflas h.Ifyou nowswit chon a
tur nsign alusin gth ecom binatio nswit ch,
on lythetur nsign allamp onthecor respon d-
ing side oftheveh icle willflash.
X To
swit choff theha zard war ning lamps:
pres sbut ton0043.
The hazard warn inglamps automaticall y
swit chon if:
R an air bag isdeplo yedor
R theveh icle deceler atesrapid lyfrom aspee d
of abov e45 mph (70km/h) and comestoa
st and still
The hazard warn inglamps switchoff auto mati-
cally ifth eveh icle reac hesaspee dof abov e
6 mph (10km/h) again afterafull brak eappli-
cat ion.
The hazard warn inglamps still oper ateifth e
ign ition isswit ched off. Corn
ering ligh tfu nct ion The
cornerin glight function impr ovesth eillu-
min atio nof theroad overa wide anglein the 104
Ext
erior lightingLight sand winds hieldwiper s

direct
ionyou areturn ing, enabling bettervisi-
bility intight bends, forexample. Itcan only be
activ ated when thelow-beam headlamps are
switch edon.
Active:
R ifyou aredriving atspeeds below25mph
(40 km/ h)and switch onthe turn signal or
turn thesteer ingwheel
R ifyou aredriving atspeeds between 25mph
(40 km/ h)and 45mph (70km/ h)and turn
the steer ingwheel
The corn ering lampmayremain litfor ashort
time, butisautomatic allyswitch edoff after no
more thanthree minut es. Head
lampsfogged uponthe inside
Certain climatic andphysical condition smay
cause moisturetoform inthe headlamp. This
moist uredoes notaffect thefunc tionality of
the headlamp. Interior
lighting Overview
ofinterior lighting
Front overhead controlpanel 0043
003D Switchestheleft- hand frontreading
lamp onoroff
0044 004A Switchesthefron tint erior lightin gon
0087 0043 Switchestherear interior lightin gon
or off
0085 0033 Switchesthefron tint erior lightin g/
automatic interior lightin gcon trol off
0083 003D Switchestheright -handfron treading
lamp onoroff
0084 Switc hestheautomatic interior lightin g
con trol on Rear
compa rtment control panel Vehicles
withapanorama roofwith power tilt/
sliding panel
0043 003D Switchesthereading lamponoroff Vehicles
withoutapanorama roofwith power
tilt/ sliding panel
0043 003D Switchestheleft- hand reading lamp
on/ off
0044 003D Switchestheright -handreading lamp
on/ off Interior
lighting control
General notes In
order topreven tthe vehicle's batteryfrom
dischargin g,the interior lightin gfunc tionsare
automatic allydeactiv atedafter some time
exc ept when theSmart Keyisin position 0048in
the ignit ionlock .
The color andbright nessofthe ambient light-
ing are setviathe multimedia system(seeDig-
ital Operator 'sManual). Interior
lighting
105Lightsandwindshield wipers Z

Aut
oma tic int erior ligh ting cont rol X
To swit chon: settheswit chtocenter pos i-
ti on 0084.
X To swit choff:set theswit chtothe0033
pos ition .
The interior ligh ting auto maticallyswit ches on
if you:
R unl ockth eveh icle
R open adoor
R rem ove theSm artKey from theign ition lock
The interior ligh ting isswit ched on for aset
ti me when theSm artKey isrem ovedfrom the
ign ition lock.You cansetthis delaye dswit ch-
off via themult imediasyst em(see Digit al
Oper ator's Man ual). Rep
lacingbul bs Imp
ortant safety notes G
WAR
NING
Bulb s,lamp sand conn ectors can getvery
hot when operating.If you chang eabulb,
you could burn yours elfon these compo -
ne nts. The reisaris kof injury.
All ow these compo nentsto cool down
bef ore chang ingabulb.
Do notuse abulb ifit has been dropped orif
it s glas stub ehas been scrat ched.
The bulb mayexplod eif:
R you touch it
R itis hot
R you dropit
R you scrat ch it
Use bulbs onlyin clo sed lamp sth at hav ebeen
desi gned for this purp ose.On lyins tallspar e
bulbs ofthesam etyp eand thespec ifiedvol t-
age.
Mar kson theglas stub ered uce theser vicelife
of thebulbs .Do notto uch theglas stub ewit h
your bare hands.Ifne cessar y,cle an theglas s
tub ewhen cold wit halco holorspir itand rubit
off withalin t-fr ee cloth.
Pro tect bulbs from moisture duringoper ation.
Do notallow bulbs tocome intoco ntact with
liquid s. Replac
eon lythebulbs listed (Ypage 106).
Hav eth ebulbs that you cannotch ang eyour-
self replace dat aqualif iedspec ialist work-
sho p.
If you require assistanc erep laci ngbulbs ,co n-
sult aqualif iedspec ialist workshop .
If th ene wbulb still does notligh tup, consult a
qualif iedspec ialist workshop .
Hea dlam psand lightsare animpo rtant aspe ct
of veh iclesaf ety. You mustth ere foremak e
sur eth at these function correc tly at all times .
Hav eth ehead lamp setting checke dreg ularl y.
Veh icles withLED headlamp s:thefron tand
rear lamp clusters of your vehicleare equip ped
wit hLE Dbulbs .Do notrep lace thebulbs your-
self .Con tacta qualif iedspec ialist workshop
whic hhas thene cessar yspec ialist knowled ge
and tools tocar ryout thewor kreq uire d. Over
view ofbul bty pes
You canreplace thefol lowin gbulbs .The bulb
typ ecan befoun din thelege nd. Veh
icles wit hhalo gen head lamps
0043 Turn signallamp :PY 21 W
0044 High-beam headlamps/dayt imerunning
lamp s/park inglamp s/stand inglamp s:
H1 555 W/ 15W
0087 Low- beam headlamps:H1 555 W 106
Rep
lacin gbul bsLight sand wind shield wiper s

Tail
lamps (vehicles withhalogen headlamps)
0043 Backup lamp:W16 W
0044 Turn signal lamp:PY21 W
0087 Brake lamp:W16 W
0085 Rear foglamp: H21 W Replacing
frontbulbs
Removing andinstalling thecover in
the front wheel housing You
must remove thecover ofthe front wheel
housing beforeyoucan change thefront turn
signal lamp.
X To remove: switchoffthe lights.
X Turn thefront wheels inwards.
X Slide cover 0043upand remove it.
X To install: insertcover0043again andslide it
down untilitengages. Low-beam
headlamps(halogen head-
lamp s) X
Remove thecover inthe front wheel hous-
ing (Ypage 107).
X Turn housing cover0043count er-clockwise
and remove it.
X Turn bulbholder 0044count er-clockwise and
pull out.
X Pull thebulb outofbulb holder 0044.
X Insert thenew bulb intobulb holder 0044.
X Insert bulbholder 0044and turn itclock wise.
X Press onhousing cover0043and turn itto the
right.
X Replace thecover inthe front wheel housing
(Y page 107).
High-beam headlamps/daytimerun-
ning lamp s/park inglamp sand stand -
ing lamp s(halogen headlamps) X
Switch offthe lights.
X Open thehood.
X Turn housing cover0043count er-clockwise
and remove it.
X Turn bulbholder 0044count er-clockwise and
pull out. Replacing
bulbs
107Lightsandwindshield wipers Z

X
Insert thenew bulband engage itto the
stop.
X Press onhousi ngcover 0043and turn itto the
right.
Turn signals(halog enheadlamps) X
Switch offthe lights.
X Open thehood.
X Turn bulbholde r0043 <004600520058005100570048005500100046004F00520046004E005A004C0056
0048[ and
pul lout.
X Turn thebulb<004600520058005100570048005500100046004F00520046004E005A004C0056
0048[ andpullit
out ofbul bholde r0043.
X Insert thenew bulbinto bulbholde r0043.
X Insert bulbholde r0043 and turn itclockwise
until itengages . Replaci
ngrear bulbs
Openin gand closing theside trim pan-
els Left-hand
sidetrimpanel
You must opentheside trimpanel inthe cargo
compartment beforeyoucan repla cethe bulbs
in the taillamp s. X
To open: turnrelea seknob 0043counter-
clockwise andremove sidetrimpanel 0044.
X To clo se: insert sidetrimpanel 0044and turn
relea seknob 0043clockwise. Righ
t-hand sidetrimpanel
You must opentheside trimpanel inthe cargo
compartment beforeyoucan repla cethe bulbs
in the taillamp s.
X To open: releaseright-hand trimpanel 0043at
the top and fold itdown inthe direction of
the arrow.
X To clo se: repla ceside panel ing0043.
Tail lamps Due
totheir location, havethebulbsinthe
backup lamp(vehicl eswith halogen head -
lamp s)and rear foglamp inthe tailga te
changed ataqua lifiedspecia listworkshop.
X Switch offthe lights.
X Open thecargo compartment.
X Open theside trimpanel (Ypage 108). X
Rel ease andremove connector 0044.
X Hold thetaillamp andunscrew fender
nut 0043.
X Remove thetaillamp . 108
Replaci
ngbulbsLig hts and windshie ldwipers

Tail
lamps
X Loosen screws0087using ascrewdriver.
X Remove thebulb holder fromthetaillamp. Bulb
holder
0085 Turn signals
0083 Brake lamp
X Tur nsignal: pressthebulb gently intothe
bulb holder, turnitcount er-clockwise and
remove itfrom thebulb holder.
X Insert thenew bulb intothebulb holder and
turn itclock wise.
X Bra kelamp :remove thecorrespon ding
bulb from thebulb holder.
X Insert thenew bulb intothebulb holder.
X Insert thebulb holder intothetaillamp and
screw itfirmly intoplace usingscrews 0087.
X Insert thetaillamp intothevehicle.
X Tighten fendernut0043and re-est ablish con-
tact with conn ector 0044.
X Close theside trimpanel (Ypage 108). Windshield
wipers Switching
thewindshield wipers
on/off
! Do
not operate thewindshield wipers
when thewindshield isdry, asthis could
damage thewiper blades. Moreover, dust
that hascollected onthe windshield can
scratc hthe glass ifwiping takesplacewhen
the windshield isdry.
If it is necessary toswitch onthe windshield
wipers indry weather conditions,alway suse
washer fluidwhen operating thewindshield
wipers.
! If
the windshield wipersleavesmears on
the windshield afterthevehicle hasbeen
washed inan automatic carwash, waxor
other residues maybethe reason forthis.
Clean thewindshield usingwasher fluid
after washing thevehicle inan automatic
car wash. Combination
switch
0047 003F Windshield wiperoff
0048 0062 Intermitt entwipe, low(rain sensor
set tolow sensitivit y)
0049 0063 Intermitt entwipe, high(rain sensor
set tohigh sensitivit y)
004A 00AA Continuous wipe,slow
004B 00A9 Continuous wipe,fast
0084 00D3 Single wipe/00D4 Wipesthewind-
shield usingwasher fluid
X Switch onthe ignition.
X Turn thecombinat ionswitch tothe corre-
sponding position.
! Vehicles
witharain sensor: ifthe wind-
shield becomes dirtyindry weather condi-
tions, thewindshield wipersmaybeactiva-
ted inadverten tly.This could thendamage Windshield
wipers
109Lightsandwindshield wipers Z

X
Hold ontothe wiper arm with one hand .
With theother hand,turn wiper blade in
dir ectio nof arro w0043 away from thewiper
arm asfar asitwi llgo.
X Slid ecatch 0044inthe directio nof arro w0087
until itenga gesinthe remov alpos itionwi th
a noticea bleclick. X
Re move thewiper blade inthe directio nof
arro w0085 away from thewiper arm.
In stall ingthe wiper blade s X
Insert thenew wiper blade into thewiper
arm inthe directio nof arro w0043. X
Slid ecatch 0044inthe directio nof arro w0087
until itenga gesinthe locki ngpos itionwi th a
noticea bleclick.
X Make surethat thewiper blade issea ted
correctl y.
X Fold thewiper arm back onto thewind-
shi eld . X
Re move protective film 0043 ofthe servi ce
indi cator onthe tipofthe wiper blade.
If the colo rof the servi ceindi cator chang es
from blacktoyellow, thewiper blades shou ld
be repl aced .
i The
durati onofthe colo rchang evari es
dep endi ngon the usagecondi tions. Win
dshie ldwipers
111Lights andwindshi eld wi pers Z