battery MERCEDES-BENZ GLA 2020 User Guide

Problems
withthepanora maroof with power tilt/sliding panel G
WARNING
If you donot reset thesliding sunroof afteramalfunction oravoltage drop,thenthereversing
feature willmalfunction ornot work. Thesliding sunroof closeswithincreased ormaximum
force. Partsofthe body could betrapped inthe closing areainthe process. Thisposes an
increased riskofinjury oreven fatalinjury.
In such orsimilar situations alwaysmake surethatnoparts ofthe body areinthe closing area.
Always resetthesliding sunroof afteramalfunction oravoltage drop.
! If
the sliding sunroof stillcannot beopened orclosed asaresult ofamalfunction ,cont acta
quali fiedspecialist workshop. Problem
Possible
causes/co nsequences and0050 0050
Solutions The
panorama roofwith
power tilt/sliding panel
cannot beclosed and
you cannot seethe
cause. If
the panorama roofwith power tilt/sliding panelisobstruct eddur-
ing closing andreopens againslightly:
X Immediately afteritblocks, pullthe0057 switch downagainto
the point ofresistance untilthepanorama roofwith power tilt/
sliding panelisclosed.
The panorama roofwith power tilt/sliding panelisclosed with
more force.
If the panorama roofwith power tilt/sliding panelisobstruct ed
again during closing andreopens againslightly:
X Immediately afteritblocks, pullthe0057 switch downagainto
the point ofresistance untilthepanorama roofwith power tilt/
sliding panelisclosed.
The panorama roofwith power tilt/sliding panelisclosed without
the automatic reversingfeature. The
panorama roofwith
power tilt/sliding panel
cannot beopened or
closed usingtheconve-
nience opening/c losing
feature. The
SmartK eybattery isdischarged ornearly discharged.
X Check theSmartK eybattery (Ypage 72)and replace itifneces-
sary (Ypage 72). Panoram
aroof with power tilt/sliding panel
91Opening andclosing Z

The
three redindicator lampsinthe button
indicate theheating levelyouhave selected.
The system automatically switchesdownfrom
level 3to level 2after approximately eight
minutes. The
system automatically switchesdownfrom
level 2to level 1after approximately ten
minutes.
The system automatically switchesoffapprox-
imately 20minutes afteritis set tolevel 1.
X Turn theSmart Keytoposition 0047or0048 in
the ignition lock(Ypage 125).
X To switch on:press button 0043repeatedly
until thedesired heating levelisset.
X To switch off:press button 0043repeatedly
until allthe indicator lampsgoout.
i If
the battery voltage istoo low, theseat
heating mayswitch off.
Problems withtheseat heating Problem
Possible
causes/conse quencesand0050 0050
Solutions The
seat heating has
switched offprema-
turely orcann otbe
switched on. The
on-board voltageistoo low because toomany electric alcon-
sumers areswitched on.
X Switch offelectric alconsumer sthat youdonot need, suchasthe
rear window defrosteror inter iorlighting.
Once thebattery issufficient lycharged, theseat heating will
switch backonautomatically. Steering
wheel Import
antsafety notes G
WARNIN
G
You could losecontrolofyour vehicle ifyou
do the following whiledriving:
R adjust thedriver's seat,head restraint,
steerin gwheel ormirrors
R fasten theseat belt
There isarisk ofan accident .
Adjust thedriver's seat,head restraint,
steerin gwheel andmirror andfasten your
seat beltbefore startingthe engine. G
WARNIN
G
Children couldinjure themselves ifthey
adjust thesteerin gwheel. Thereisarisk of
injury. Never
leavechildren unsupervised inthe
vehicle.
When leaving thevehicle, alwaystake the
Smart Keywith youand lock thevehicle. This
also applies forthe Digital Vehicle Keyifthe
"Digital Vehicle Key"functionisactivated via
Mercedes meconn ect. Adjust
ingthe steering wheel G
WARNIN
G
If the steerin gwheel isunlocked whilethe
vehicle isin motion ,it could change position
unexpect edly.Thiscould cause youtolose
cont rolofthe vehicle. Thereisarisk ofan
accident . Steering
wheel
97Seats,steering wheelandmirrors
Z

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

Rear
windo wdefro ster
Gen eral notes The
rearwi ndow defroste rha sa hig hcurr ent
dra w.Yousho uld there foreswitch itoff as
soo nas the rearwi ndow iscle ar. Othe rwise,
the rearwi ndow defroste rswi tches offauto-
mati callyafte rsev eralminu tes.
If the battery voltag eis too low, the rearwi n-
dow defroste rmay switch off. Ac
tivati ng/de acti vatin g X
Tu rn the Smar tKeytopos ition 0048 inthe igni-
tion lock (Ypage 125 ).
X Pre ssthe 006C button.
The indicator lamp inthe 006C button lights
up orgoe sou t.
Prob lems with the rear windo wdefro ster Prob
lem Po
ssi blecau ses/ conse quen cesand 0050 0050
So luti ons The
rearwi ndow
def roste rha sdea ctiva -
ted prematu relyor can-
not beacti vate d. The
battery hasnot beensu ffici ently charged.
X Swi tch offany consu mersthatarenot required ,e.g. reading
la mps ,inter iorlighti ngorthe seathea ting.
Whe nthe battery issu ffici ently charged,the rearwi ndow
def roste rcan beacti vate dag ain. Sw
itchin gair-re circul ationmode
on /o ff
Gen eral notes Yo
ucan deactiva tethe flowof fres hairif
unp leas ant odorsare enter ingthe vehiclefrom
ou tsid e.The airal rea dyinsi dethe vehiclewi ll
then bereci rcul ated.
If yo uswi tch onair-reci rculation mod e,the
wi ndow scan fogupmore quickl y,in pa rticu lar
at low temp erature s.Only useair-reci rculation
mod ebri eflyto pre vent thewindow sfrom fog-
gi ng up.
The operationofair-reci rculation mod eis the
sa me forallcontrol panel s.
Ac tivati ng/de acti vatin g X
Tu rn the Smar tKeytopos ition 0048 inthe igni-
tion lock (Ypage 125).
X To acti vate :pre ssthe 008A button.
The indicator lamp inthe 008A button lights
up .
Dua l-zoneautomati ccl imate control :ai r-
reci rcul ation mod eis acti vate dau toma tically:
R at hig hou tsid etemp erature s
R at hig hlevel sof pol lution Whe
nair-reci rculation mod eis acti vate dau to-
mati cally,the indicator lamp inthe 008A but-
ton isnot lit. Ou tsid eairis ad ded afterab ou t
30 minu tes.
X To deac tivate:pressthe 008A button.
The indicator lamp inthe 008A button goes
ou t.
i Air-re circulation modedea ctiva tesauto-
mati cally:
R afte rap pro xima telyfiveminu tesatout-
sid etemp erature sbel ow appro xima tely
45 ‡(7 †)
R afte rap pro xima telyfiveminu tesifthe
"C ool ing with airdeh umidifica tion" func-
tion isdea ctiva ted
R afte rap pro xima tely30minu tesatoutsid e
temp erature sab ove appro xima tely45‡
(7 †) ifthe "Cool ing with deh umidifica -
tion" functi onisacti vate d Sw
itchin gthe residual heatonoroff
Gen eral notes The
residua lhea tfuncti onisonly availab lein
veh icles for Canad awi th dual-zone automa tic
cli mate control . 12
2 Ope
rating theclimate control systemsClimate control

It
is possib leto make useofthe residu alheat
of the engine tocontinue heatingthevehicle
for appro ximately 30minutes aftertheengine
has been switched off.The heating time
depends onthe setinterior temperature .
i The
blow erwil lrun atalow speed regard-
less ofthe airflowsetting.
i If
you activate theresidu alheat function at
high temperature s,only theventilation will
be activated. Theblow erruns atmediu m
speed .
i You
cannot usetheventilation tocool the
vehicle interior toatemperature lowerthan
the outsid etemperature .
Ac tivating/de activating X
Turn theSmartKey topositio n005A inthe igni-
tion lock orremove it(Y page 125).
X Press the004B button.
The indicator lampinthe 004B button lights
up orgoes out.
The indicator lampinthe button indicates
that therespective functionisactivated.
i Resi dualheat isdeactiva tedautoma tically:
R after appro ximately 30minutes
R when theignition isswitched on
R ifthe battery voltage drops Air
vents Important
safetynotes G
WARNING
Very hotorvery cold aircan flow from the
air vents. Thiscould resultin burns orfrost-
bite inthe immedi atevicinity ofthe air
vents. Thereisarisk ofinjury.
Make surethatallvehicle occupants always
maintain asufficie ntdistance tothe airout-
lets. Ifnecessary ,redirect theairflowto
another areaofthe vehicle interior. In
order toensure thedirect flowoffresh air
through theairvents intothevehicle interior,
plea seobserve thefollow ingnotes:
R keep theairinlet betwee nthe windshi eld
and thehood freeofblockage s,such asice,
snow orlea ves.
R never covertheairvents orair intake grilles
in the vehicle interior.
i For
optimal climatecontrolinthe vehicle ,
open theairvents completely andsetthe
adjusters tothe central position. Setting
theairvents 0043
Side window defroster vent
0044 Side airvent
0049 Side airvent open
004A Side airvent closed
X To open aside airvent: turntheadjuster
in side airvent 0044tothe left inpositio n0049.
X To clo seaside airvent: turntheadjuster
in side airvent 0044clockwise asfar asitwil l
go topositio n004A.
i The
center andrear airvents areadjusted
in the same way. Ai
rvents
123Climate control Z

R
the doors areclo sedand locked
R the windo wsand slid ing sunroo far eclo sed
Als oma kesure tha t:
R the fuel tank issu fficie ntly filled
R the starter battery hasbe en sufficie ntly
cha rged G
WA
RNING
Li mbs couldbe cru she dor tra pped ifthe
eng ineissta rted unintenti onally du rin gse r-
vic eor ma inte nanc ewo rk. The reisaris kof
inju ry.
Alw aysse cur ethe engineagainst uninten-
tio nal startin gbe for ecar rying outma inte -
nanc eor rep airwo rk.
Ma kesure tha tthe enginecann otbe started
via your sma rtphone befor ecar rying outma in-
tena nceorrep airs. Youcan prevent aneng ine
sta rtvia your sma rtphone,for exa mpl e,ifyo u:
R sw itch onthe hazar dwa rning lamps
R do not lock the doors
R op en the hood Pul
ling away
Ge neral notes G
WA
RNING
If the enginespee dis ab ove theidling spee d
and youeng agetra nsmi ssion positio n003A
or 0046 ,the vehiclecou ldpu llaw ay sud-
de nly .The reisaris kof an acc ident.
Wh eneng aging transmi ssion positio n003A
or 0046, alwa ysfirml yde pre ssthe brake
pe daland donot simu ltaneo uslyacc elera te.
Dep ressthe accelera tor carefully wh en pulling
aw ay.
The vehiclelocks centr ally once youha ve
pu lled away.The locking knobsin the doors
dro pdo wn.
Yo ucan open the doors fromthe inside at any
tim e.
Yo ucan also deacti vate the automa ticlocking
fea ture(Y page 199 ).
Veh icle swi th auto matic transmission :it is
po ssi ble to shi ftthe transmi ssion fromposi- tio
n005D tothe desired positio nonl yif yo u
de pre ssthe brakepedal.Onl ythe ncan the
pa rki ng lock be deacti vated .
Al lve hic les(e xc ept Merce des -AMG vehi-
cl es ):ifyo udo not depre ssthe brakepedal,
the DIRECT SELEC Tlever can stillbe mov ed
bu tthe parki ng lock rem ains eng aged .
Me rce des -AMG vehic les: ifyo udo not
de pre ssthe brakepedal,the selector lever can
sti llbe mov edbutthe parki ng lock rem ains
eng aged .
At transmi ssion fluidtemp eratures below 00F84 ‡
(00F8 20 †),yo ucan onlyshi ftou tof positio n005D
into anothertra nsmi ssion positio nwh en the
eng ineisrunning .
i Up
shi fts take place athighe reng ine
sp ee ds after acol dsta rt.Thishe lpsthe cat-
al yti cconve rtertorea chits opera ting tem-
pe ratur emor equ ickl y.
Info rma tionon the automa ticrelease ofthe
el ectr icpa rki ng bra ke(Ypage 148 ).
Hil lstart assist Hil
lsta rtas sist helpsyo uwh en pulling away
for wa rdorinrev ers eon anuphillgra dient. It
hol dsthe vehiclefor asho rttim eaf ter you
ha ve rem ovedyo ur foo tfro mthe brakepedal.
Thi sgi ves youeno ughtim eto mov eyo ur foo t
fro mthe brakepedalto the accelera tor pedal
and todepre ssitbe for ethe vehiclebe gins to
rol l. G
WA
RNING
After asho rttim e,hillsta rtas sist willno lon-
ge rbra keyour veh icleand itcou ldrol law ay.
Th ere isaris kof an acc ident and injury.
Th ere fore,qu ickl ymov eyo ur foo tfro mthe
bra kepedalto the accelera tor pedal.Nev er
le av ethe vehiclewh en itis he ldby hillsta rt
as sist.
Hil lsta rtas sist isnot activeif:
R youar epu lling away on alevel roador on a
do wnh ill gra dient.
R the transmi ssion isin po sitio n005C.
R the electr icpa rki ng bra keisap plied.
R ESP ®
is ma lfunctio ning.
Fur therinf orm ation onholding the vehiclesta -
tio nar yon uphillgra dients (Ypage 138) . 12
8 Dr
ivi ngDr ivi ng andparki ng

R
the syste mdetects moistureon the wind-
shi eld wh en the air-con ditio ning syste mis
sw itch edon
R the cond ition ofcha rge ofthe battery istoo
lo w
Shi ftin gthe transmi ssion topositio n005D does
not startthe engine.
De activ atin gor activ atin gthe ECO
start/ stopfun ction X
To dea ctivate :pre ssECO button 0043.
Indi cato rla mp 0044goes out.
X To activ ate :pre ssECO button 0043.
Indi cato rla mp 0044lights up.
If ind icator lamp 0044isoff ,the ECO start/sto p
fu nctio nha sbe en deacti vated manua lly or as
the resultof ama lfunctio n.The enginewill the
nnot beswitch edoff automa tically wh en
the vehiclestop s. AM
GPe rfo rmanc eex haus tsys tem
(M erc ede s-AMG vehic les)
Yo ucan choose betwe endiffe rent AMG Per-
for ma nce exhaust syste mvol um esusing the
po sitio nof the exhaust flap.
Each timeyo usta rtthe enginewith the Sma rt-
Key orthe Star t/Stop button, thequietes tse t-
ting isacti vated . Setti
ngthe volum e:
X Pre ssbutton 0043.
If yo use lect the loud estse tting ,ind icator
la mp 0044lights up. 13
0 Dr
ivi ngDr ivi ng andparki ng

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

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

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