ignition MERCEDES-BENZ GLA 2020 Owner's Manual

Problems
withtheengine Problem
Possible
causes/co nsequences and0050 0050
Solutions The
engine doesnot
start. The
HOLD functionorAct ive Distanc eAssist DISTRONIC isactiva-
ted.
X Deactivat ethe HOLD function(Ypage 166)orAct ive Distanc e
Assist DISTRONIC (Ypage 163).
X Try tostart theengine again. The
engine doesnot
start. Thestarter motor
can beheard. R
There isamalfunction inthe engine electron ics.
R There isamalfunction inthe fuel supply .
Before attempt ingtostart theengine again:
X Turn theSmartK eyback toposition 005Ainthe ignition lock.
or X Press theStart /Stopbutton repeatedly untilallindicator lampsin
the instrumen tcluster goout.
X Try tostart theengine again.Avoidexcessively longandfrequent
attempt sto start theengine asthese willdrain thebattery.
If the engine doesnotstart after several attempt s:
X Consult aquali fiedspecialist workshop. The
engine doesnot
start. Youcannot hear
the starter motor. The
on-board voltageistoo low because thebattery istoo weak or
discharged.
X Jump-start thevehicle (Ypage 296).
If the engine doesnotstart despite attemptsto jump-st artit:
X Consult aquali fiedspecialist workshop. The
starter motorwasexposed toathermal loadthatwastoohigh.
X Allow thestarter motortocool down forapproximately two
minutes.
X Try tostart theengine again.
If the engine stilldoes notstart:
X Consult aquali fiedspecialist workshop. Driving
131Drivingandparking Z

Befor
ethe engi nespe edrea ches thered area,
an upshi ftindi cator willbe show nin the multi-
functi ondispl ay.
X Shift torecom mende dgea r0043 whe nmes-
sag e0044 isshow nin the multifunction dis-
pl ay .
Ki ckdo wn X
For maxi mum acceleration, dep ress the
acce lerator pedalbey ond thepressu re
poi nt.
The automa tictransm ission shifts toalow er
gea rdep endi ngon the engi nespe ed.
X Shift back up once thedesiredspe edis
rea ched . Duri
ngkickdo wn,youcannot shiftgea rsusi ng
the stee ring wheelpa ddl eshi fters.
If yo uap plyful lthrottle ,the automa tictrans-
mis sionshi fts uptothe next gearwhe nthe
maxi mum enginespe edisrea ched .Thi spre -
vents theengi nefrom overrevvi ng.
Merc edes-AMG vehicle s: itis only possible
to use kickdo wnintempo rarymanu aldri ve
prog ramM.Whe nmanu aldri ve prog ramMis
per mane ntlyactivate d,kickdo wnisnot possi-
bl e. Prob
lems with the transmis sion Prob
lem Pos
siblecaus es/c on sequen cesand 0050 0050
Sol utio ns The
transm ission has
prob lemsshi fting gear. The
transm ission islos ing oil.
X Have thetransm ission checke dat aqu alifi ed spe cialist wor kshop
imme diatel y. The
acce leration ability
is dete riorati ng.
The transm ission no
long ershi fts into allof
the gears.
Re vers egea rcan no
long erbe enga ged. The
transm ission isin eme rgency mode.
X Stop thevehi cle.
X Shift thetransm ission topos ition005D.
X Swi tch offthe engi ne.
X Wa itat lea stten seco ndsbefore resta rting theengi ne.
X Shift thetransm ission topos ition005B.
X Have thetransm ission checke dat aqu alifi ed spe cialist wor kshop
imme diatel y. Refue
ling Impo
rtant safetynotes G
WARNI
NG
Fue lis hig hly flammab le.Risk offire and
expl osion byimp rope rhand ling offue l. You
mustavo idfire ,ope nfla mes, smoki ng
and crea ting sparks. Switch offthe ignition
bef ore refu eling and ,if pre sent, switch off
the auxiliary hea ting. 142
Refue
lingDri vin gand parking

Opening
thefuel filler flap 0043
Toopen thefuel filler flap
0044 Tire pressure table
0087 Toinsert thefuel filler cap
0085 Instruct ionlabel forfuel type tobe refu-
eled
X Switc hoff the engine .
X Remove theSmart Keyfrom theignition
lock.
or, invehicles withKEYLE SS-GO start -function
or KEYLE SS‑GO
X Open thedriver's door.
The vehicle electronics arenow inposition
005A. This isthe same asthe Smart Keyhaving
been removed.
X Press thefuel filler flapinthe direct ionof
arrow 0043.
The fuel filler flapswings up. X
Turn thefuel filler capcount er-clockwise
and remove it.
X Inser tthe fuel filler capinto theholder on
the inside offuel filler flap0087.
X Completely insertthefiller neck ofthe fuel
pump nozzleinto thetank ,hook inplace
and refuel.
X Only fillthe tank untilthepump nozzle
switches off.
i Do
not add anymore fuelafter thepump
stops fillingforthe first time. Otherwise, fuel
may leakout.
Closing thefuel filler flap X
Replace thecap onthe filler neck andturn
clock wiseuntilitengages audibly.
X Close thefuel filler flap.
Close thefuel filler flapbefore lockingthe
vehicle.
If you aredriving withthefuel filler capopen,
the 00B6 reserv efuel warning lampflashes. A
message appearsinthe multifunc tiondisplay
(Y page 219).
In addition, the00B9 Check Engine warning
lamp maylight up(Ypage 239).
For furth erinfor mation onwarning andindica-
tor lamps inthe instrument cluster,see
(Y page 239). 144
RefuelingDriving
andparking

Problems
withfuelandthefuel tank Problem
Possible
causes/co nsequences and0050 0050
Solutions Fuel
isleaking fromthe
vehicle. The
fuel lineorthe fuel tank isfaulty.
G WARNING
Risk ofexplosion orfire.
X Apply theelectric parking brake.
X Switch offthe engine.
X Remove theSmartK eyfrom theignition lock.
or, invehicles withKEYLE SS-GO start- functionorKEYLE SS‑GO
X Open thedriver's door.
The vehicle electron icsare now inposition 005A.This isthe same
as the SmartK eybeing removed fromtheignition.
X Do not restart theengine underanycircumst ances.
X Consult aquali fiedspecialist workshop. The
fuel filler flapcan-
not beopened. The
fuel filler flapisnot unlocked.
X Unlock thevehicle (Ypage 69). The
SmartK eybattery isdischarged ornearly discharged.
X Unlock thevehicle usingthemechanical key(Ypage 76). The
fuel filler flapisunlocked, buttheopening mechanism isjam-
med.
X Consult aquali fiedspecialist workshop. Parking
Import
antsafety notes G
WARNING
Flammable materialsuchasleaves, grassor
twigs mayignite ifthey come intocontact
with hotparts ofthe exhaust systemor
exhaust gasflow. There isarisk offire.
Park thevehicle sothat noflammable mate-
rials come intocontactwith parts ofthe
vehicle whicharehot. Take particular care
not topark ondry grassland orharvested
grain fields. G
WARNING
If children areleft unsupervised inthe vehi-
cle, they could:
R operate thevehicle's equipment Additionally,
childrencouldsetthe vehicle in
motion if,for example, they:
R release theparking brake
R shift theautomatic transmissionoutof
park position 005D
R start theengine
There isarisk ofan accident andinjury.
Never leavechildren oranimals unattended
in the vehicle.
When leaving thevehicle, alwaystake the
SmartK eywith youand lock thevehicle. This
also applie sfor the Digital Vehicle Keyifthe
"Digital Vehicle Key"functionisactivated via
Mercedes meconn ect.
! Always
securethevehicle correctlyagainst
rolling away.Otherwise, thevehicle orits
drivetrain couldbedamaged. Park
ing
145Driving andparking Z

To
ensure thatthevehicle issecured against
rolling awayunintention ally:
R the electric parking brakemustbeapplied.
R the trans mission mustbeinposition 005Dand
the trans mission position displaymustshow
005D inthe multifunct iondisplay .
R the Smart Keymust beremoved fromthe
ignition lock.
R on uphill ordownhill gradients, thefront
wheels mustbeturned towards thecurb. Switching
offthe engine
Import antsafety notes G
WARNIN
G
The automatic transmission switches toneu-
tral position Nwhen youswitch offthe
engine. Thevehicle mayrollaway .There isa
risk ofan accident .
Aft erswitching offthe engine, alwaysswitch
to parking position P.Prevent theparked
vehicle fromrolling awaybyapplyi ngthe
parking brake.
Automa tictransmission X
Apply theelectric parking brake.
X All
vehicles (exceptMercedes-AMG vehi-
cles): shiftthetrans mission toposition 005D. X
Mercedes-AMG vehicles:pressbutton 0043. X
With theSmar tKey:turn theSmart Keyto
position 005Ainthe ignition lockandremove
it.
The immobilizer isactivated.
X With theStar t/Stop button:press the
Start /Stopbutton (Ypage 125).
The engine stopsandallthe indicator lamps
in the instr ument cluster goout.
If the driver's doorisclosed, thisisthe
same askey position 0047.Ifthe driver's door
is open, thisisthe same askey position 005A,
i.e. the Smart Keyhaving beenremoved.
If you switch theengine offwith thetrans mis-
sion inposition 005Eor005B, theautomatic trans-
mission shiftsto005C automatically.
With theSmar tKey: ifyou then open thedriv-
er's door orthe front -passenger dooror
remove theSmart Keyfrom theignition, the
automatic transmission shiftsto005D automati-
cally.
With theStar t/Stop button:ifyou then open
the driver's doororthe front -passenger door,
the automatic transmission shiftsto005D auto-
matically.
If you want theautomatic transmission to
remain inneutral 005C,e.g. when having the
vehicle cleaned inan automatic carwash with
a towing system:
X Vehicles
withtheStar t-Stopbutt on:
remove theStart -Stop button fromtheigni-
tion lock.
X Insert theSmart Keyinto theignition lock.
X All vehicles: switchtheignition on.
X Depress thebrake pedalandkeep it
depressed.
X Eng age neutral 005C.
X Release thebrake pedal.
X Release theelectric parking brake.
X Switch offthe ignition andleave theSmart -
Key inthe ignition lock. Elec
tric par king brake
General notes G
WARNIN
G
If children areleft unsupervised inthe vehi-
cle, they could:
R operate thevehicle's equipment 146
Par
kingDriving andparking

The
electric parking brakeisnot automatically
applied ifthe engine isswitched offbythe
ECO start/stopfunct ion.
Releasing automat ically Your
vehicle's electricparking brakeisauto-
matically releasedifall ofthe following condi-
tions aremet:
R The engine isrunnin g
R The trans mission isin position 005Bor005E and
you depress theaccelerator pedalorshift
from position 005Dto005B or005E
R The seat beltisfasten ed
If the trans mission isin position 005E,thetail-
gate must beclosed.
If your seatbeltisnot fasten ed,the following
condit ionsmust befulfilled toautomatically
release theelectric parking brake:
R The driver's doorisclosed.
R You areshiftin gfrom transmission position
005D orhave previously drivenatspeeds
greater than2mph (3km/ h)
Ens ure that youdonot depress theaccelera-
tor pedal unintention ally.Otherwise, thepark-
ing brake willbereleased andthevehicle will
start tomove.
Emergency braking The
vehicle canalso bebraked duringan
emergenc yby using theelectric parking brake.
X While driving, pushhandle 0043ofthe electric
parking brake(Ypage 147).
The vehicle isbraked aslong asyou keep
handle 0043ofthe electric parking brake
pressed. Thelonger theelectric parking
brake handle 0043isdepressed, thegreater
the braking force.
During braking:
R awarning tonesounds
R the Release ParkingBrake Release
ParkingBrakemessage
appears
R the red 0049 (USAonly)or0024 (Canada
only) indicator lampinthe instr ument clus-
ter flashes
When thevehicle hasbeen braked toastand-
still, theelectric parking brakeisapplied. Park
ingthe vehicle foralong period
If you leave thevehicle parkedforlonger than
four weeks, thebattery maybedamaged by
exhaustive discharging.
If you leave thevehicle parkedforlonger than
six weeks, thevehicle maysuffer damage asa
result oflack ofuse.
X Visit aqualified specialist workshop and
seek advice.
i You
canobtain informationabout trickle
chargers fromaqualified specialist work-
shop. Driving
tips General
notes
Import antsafety notes G
WARNIN
G
If you switch offthe ignition whiledriving,
safety-relevan tfunct ionsareonly availab le
with limitations, ornot atall. This could
affect ,for example, thepower steerin gand
the brake boosting effect.You willrequire
considerably moreeffort tosteer andbrake.
There isarisk ofan accident .
Do not switch offthe ignition whiledriving. G
WARNIN
G
Mobile commun icationsequipment distracts
the driver fromtrafficcondit ions.Inaddi-
tion, thedriver couldlosecontrolofthe
vehicle. Thereisarisk ofan accident .
As adriver, usemobile commun ications
equipment onlywhen thevehicle isat a
standst ill.
As avehicle occupant ,use mobile commun i-
cations equipment onlyinthe designated
area, e.g.therear passenger compartment.
Observe thelegal requirement sfor the count ry
in which youaredriving. Somejurisdict ions
prohibit thedriver fromusing amobile phone
while driving avehicle.
If you make acall while driving, alwaysuse
hands-f reemode. Onlyoperate thetelephone 148
Driving
tipsDriving andparking

object
swhen theyareinthe immediate
vicinit yof the vehicle. Youcould damage the
vehicle orthe object s.
The sensors maynotdetect snowandother
object sthat absorb ultrasonic waves.
Ultrasonic sourcessuchasan automatic car
wash, thecompressed- airbrakes ofatruck
or apneumatic drillcould cause Parking
Assist PARKTRONIC tomalfunct ion.
Parking AssistPARKTRONIC maynotfunc-
tion correc tlyon uneven terrain.
Parking AssistPARKTRONIC isactivated auto-
matically whenyou:
R switch onthe ignition
R shift thetransm issiontoposition 005B,005Eor
005C
Parking AssistPARKTRONIC isdeactivated at
speeds above11mph (18km/ h).It is rea cti-
vate dat lowe rspe eds.
Rang eof the senso rs Gen
eral notes
Pa rking AssistPAR KTRONIC doesnot take into
acco untobstacl eslocate d:
R bel ow the dete ction range,such asper sons ,
ani mal sor obje cts
R ab ove thedete ction range,e.g. overhanging
lo ad s,tai lsecti onsorload ing ram psof
trucks 0043
Senso rsinthe front bumpe r,left-ha ndside
(e xamp le)
The sens orsmus tbe free from dirt, ice or
slu sh. The ycan othe rwisenot functi oncor-
rectl y.Clea nthe sens orsregularl y,taki ngcare
not toscra tchordamag ethem (Ypage 283 ). Rang
e 0043
Detecti onrang eof front sensors
0044 Detecti onrang eof rea rsens ors
Front sensors Ce
nter Appr
ox.40in(app rox.
100 cm) Co
rners Appr
ox.24in(app rox.
60 cm) Re
ar sens ors Ce
nter Appr
ox.48in(app rox.
120 cm) Co
rners Appr
ox.32in(app rox.
80 cm) Mini
mum distance Ce
nter Appr
ox.8in (app rox.
20 cm) Co
rners Appr
ox.6in (app rox.
15 cm) If
an obs tacl eis dete cted within thisrang e,the
rel eva ntwa rning displ ayslight upand awa rn-
ing tone sounds. Ifthe distance fallsbel ow the
mini mum ,the distance maynolonger be
sho wn. 17
2 Dri
ving sys temsDriving and parkin g

Problems
withParking AssistPARKTRONIC Problem
Possible
causes/co nsequences and0050 0050
Solutions Only
thered segments
in the Parking Assist
PARKTRONIC warning
display sare lit.You also
hear awarning tonefor
approximately twosec-
onds.
Parking Assist
PARKTRONIC isthen
deactivated andthe
indicator lamponthe
PARKTRONIC button
lights up. Parking
AssistPARKTRONIC hasmalfunction edand hasbeen deac-
tivated.
X Ifproblems persist,haveParking AssistPARKTRONIC checkedat
a quali fiedspecialist workshop. Only
thered segments
in the Parking Assist
PARKTRONIC warning
display sare lit.Parking
Assist PARKTRONIC is
then deactivated. The
Parking AssistPARKTRONIC sensorsaredirty orthere isinter-
ferenc e.
X Clean theParking AssistPARKTRONIC sensors(Ypage 283).
X Switch theignition backon. The
problem maybecaused byan extern alsource ofradio orultra-
sound waves.
X Check tosee ifParking AssistPARKTRONIC worksatadifferent
location. Active
Parking Assist
General notes Act
ive Parking Assistisan electron icparking
aid with ultrasound. Itmeasures theroad on
both sides ofthe vehicle. Aparking symbol
indicates asuitable parkingspace.Active
steering intervention andbrake application
can assist youduring parking andwhen exiting
a parking space.Youcanalso stilluse Parking
Assist PARKTRONIC (Ypage 171).
Import antsafety notes Act
ive Parking Assistismerely anaid. Itis not
a replacement foryour atten tiontoyour imme-
diate surroundings. Youarealwa ysresponsi-
ble forsafe maneuvering, parkingandexiting a
parking space.Makesurethatthere areno
persons, animalsorobject sin the maneuver-
ing area when youaremaneuvering orparking.
When Parking AssistPARKTRONIC isdeactiva-
ted, Active Parking Assistisalso unavaila ble. G
WARNING
While parking orpulli ngout ofaparking
space, thevehicle swingsoutand candrive
onto areas ofthe oncomin glane. Thiscould
cause youtocollide withother roadusers or
object s.There isarisk ofan accident.
Pay atten tiontoother roadusers orobject s.
Stop thevehicle ifnecessary orcancel the
Act ive Parking Assistparking procedure.
! If
they cannot beavoided, driveover
obstacles suchascurbs slowly andatan
obtuse angle.Otherwise, youmay damage
the wheels ortires.
Act ive Parking Assistmaypossibly indicate
parking spaceswhicharenot suitable forpark-
ing, forexample:
R where parking orstopping isprohibited
R in front ofdriveways orentr ances andexits
R on unsuitable surfaces 174
Driving
systemsDriving andparking

The
outside temperat uredisplay isin the mul-
tifunc tiondisplay (Ypage 191).
There isashort delay before achange inout-
side temperat ureappears inthe multifunct ion
display . Coolant
temperaturegauge G
WARNIN
G
Opening thehood when theengine isover-
heated orwhen thereisafire inthe engine
compart mentcould expose youtohot gases
or other service products. Thereisarisk of
injury.
Let anoverheated enginecooldown before
opening thehood. Ifthere isafire inthe engine
compart ment,keep thehood closed
and cont actthe fire department .
! A
display message isshown ifthe coolant
temperat ureistoo high.
If the coolant temperat ureisover 248‡
(120 †),donot cont inue driving. The
engine willotherwise bedamaged.
The coolant temperat uregage isin the instr u-
ment cluster onthe right- hand side
(Y page 32).
The Hmarking inthe coolant temperat ure
gauge correspon dstoacoolant temperat ure
of approximately 248‡(120 †).
Under normal operating conditionsandatthe
correc tcoolant level,thecoolant temperat ure
gauge mayrisetothe Hmarking. Opera
tingtheon-board computer
Overview 0043
Multifunct iondisplay
0044 Right controlpanel
0087 Left controlpanel
X To activat ethe on-board computer:turn theSmart Keytoposition 0047inthe ignition lock.
You cancont rolthe multifunct iondisplay andthesettings inthe on-board computer usingthe
button son the multifunct ionsteerin gwheel. Displays
andoperat ion
189On-board computerand display s Z

If
you switch offthe engine, theRACE TIMER is
reset to"0" after 30seconds. Alllapsare
dele ted.
You cannot deleteindivid ualstored laps.Ifyou
have stopped 16laps,the current lapdoes not
have tobe reset.
X Rese tthe current lap.
X Press 0076toconfirm Reset Reset.
Reset Race-Timer? Reset
Race-Timer? appearsinthe multi-
function display.
X Press the0064 button toselect Yes Yes
and
press the0076 button toconfirm.
All lapsare dele ted.
Overall statistics 0043
RACETIMER overallevalu ation
0044 Total timedriven
0087 Average speed
0085 Distance covered
0083 Maximu mspeed
This function isshown ifyou have stored at
lea stone lapand stopped theRACETIMER.
X Press the0059 or0065 button onthe steer-
ing wheel toselect theAMG AMG
menu.
X Press the0063 button repeatedlyuntilthe
overal levalu ation appears. Lap
statistics 0043
Lap
0044 Lap time
0087 Average lapspeed
0085 Lap length
0083 Top speed duringlap
This function isonly availableifyou have
stored atlea sttwo lapsand have stopped the
RACETIMER.
X Press the0059 or0065 button onthe steer-
ing wheel toselect theAMG AMG
menu.
X Press 0063repeatedlyuntilalap evalu ation
appe ars.
Each lapappe arsinasepa ratesubme nu.
The fastest lapisindicated byflashi ngsym-
bol 0043.
X Press the0063 or0064 button toselect a
different lapevalu ation. Dis
play message s Introductio
n
Gene ralnotes Displa
ymessag esappe arinthe multifu nctiondisplay.
Displa ymessag eswith graphi cdispl aysmay beshown insimpl ifiedform inthe Operator's Man-
ual and may therefore differfromthemultifu nctiondisplay.
Plea serespond inaccordance withthedispl aymessag esand follow theaddi tional notes inthis
Operator's Manual.
Certai ndispl aymessage sare accompanie dby an aud ible warning toneoracontinuous tone.
When theignition isswitched off,alldispl aymessag esare dele ted, apartfrom some high-pri ority
displ aymessag es.Once thecause sof the high-pri oritydisplaymessag eshave been rectified, the
corresponding displaymessage sare also deleted. Di
splay message s
203On-bo ardcompu terand displays Z