2020 MERCEDES-BENZ GLA start stop button

There
isarisk offire and anaccident .
Release theparking brakefullybefore driv-
ing off.
! Do
not warm upthe engine whilestation -
ary. Pullaway immediately. Avoidhigh
engine speeds andfullthrot tleuntil the
engine hasreached itsoperating tempera-
ture.
In vehicles withautomatic transmission,
engage positions Pand Ronly when the
vehicle isstation ary.
Where possible, avoidspinnin gthe drive
wheels whenpulling awayonslippery roads.
You could otherwise damagethedrive train.
! Mercedes-AMG
vehicles:avoidfull-load
operation andengine speeds greater than
5000 rpmwhen theengine iscold. This
helps toprotec tthe engine andavoids
uncomf ortable driving. Key
positions
Smar tKey 005A
Toremove theSmart Key
(shift thetrans mission toposition 005D)
0047 Power supply forsome consumer s,such
as the windshield wipers
0048 Ignit ion(power supplyforallconsumer s)
and drive position
0049 Tostart theengine
i The
Smart Keycanbeturned inthe ignition
lock even ifit is not thecorrec tSmart Key
for the vehicle. Theignition isnot switched
on. The engine cannotbe start ed. Star
t/Stop button General
notes
Vehicles withKEYLE SS-GO are equipped with
Smart Keysfeaturing theintegr atedKEYLE SS-
GO funct ionand adetachable Start/Stopbut-
ton .
A check whichperiodically establishesaradio
conn ection between thevehicle andthe
Smart Keydetermin eswhether avalid Smart -
Key isin the vehicle. Thisoccurs, forexample,
when startingthe engine.
When youinsert theStart /Stopbutton into
the ignition lock,thesystem needsapprox-
imately twoseconds recognitiontime. Youcan
then usetheStart /Stopbutton .
Pressing theStart /Stopbutton several times
in succession correspondstothe different
Smart Keypositions inthe ignition lock.Thisis
only thecase ifyou arenot depressing the
brake pedal.
If you depress thebrake pedalandpress the
Start /Stopbutton ,the engine startsimmedi-
ately.
To start thevehicle without actively usingthe
Smart Key:
R the Start /Stopbutton mustbeinsert edin
the ignition lock
R the Smart Keymust beinthe vehicle
R the vehicle mustnotbelocked withthe
Smart KeyorKEYLE SS-GO (Ypage 70)
Do not keep theKEYLE SS-GO key:
R with electron icdevices, e.g.amobile phone
or another SmartKey.
R with metallic objects,e.g. coins ormetal
foil.
R inside metallic objects,e.g. ametal case.
This canaffect thefunct ionality ofKEYLE SS-
GO.
If you lock thevehicle withtheSmart Key
remote controlorwith KEYLE SS-GO, after a
short time:
R you willnotbeable toswitch onthe ignition
with theStart /Stopbutton .
R you willnolonger beable tostart theengine
with theStart /Stopbutton untilthevehicle
is unlocked again.
If you lock thevehicle centrally using thebut-
ton onthe front door(Ypage 75),youcan
cont inue tostart theengine withtheStart /
Stop button . Driving
125Drivingandparking Z

The
engine canbeswitched offwhile thevehi-
cle isin motion bypressing andholding the
Start /Stopbutton forthree seconds. This
funct ionoperates independent lyof the ECO
start /stopautomatic engineswitch-offfunc-
tion.
Key positions withtheStar t/Stop button 0043
Start /Stopbutton
0044 Ignit ionlock
As soon asthe ignition isswitched on,allthe
indicator lampsinthe instr ument cluster light
up.
For further informationonsituations inwhich
an indicator lampeither failstogo out after
the engine isstart edorlights upwhile driving,
please referto"Warning andindicator lampsin
the instr ument cluster" (Ypage 233).
If Start /Stopbutton 0043has notyetbeen
pressed, thisisthe same asthe Smart Key
being removed fromtheignition.
X To switch onthe power supply:press
Start /Stopbutton 0043once.
The power supply isswitched on.You can
now activate thewindshield wipers,for
example.
The power supply isswitched offagain if:
R the driver's doorisopened and
R you press Start/Stopbutton 0043twice when
in this position
X To switch onthe ignition: pressStart/
Stop button 0043twice.
The ignition isswitched on.
If you press Start/Stopbutton 0043once
when inthis position, theignition is
switched offagain. Removing
theStar t/Stop button
You canremove theStart /Stopbutton from
the ignition lockandstart thevehicle asnor-
mal using theSmart Key.
You canonly switch between Start/Stopbut-
ton mode andSmart Keyoperation whenthe
vehicle isstation ary.
You must alsoengage parkposition 005D.
X Remove Start/Stopbutton 0043from ignition
lock 0044.
You donot have toremove theStart /Stopbut-
ton from theignition lockwhen youleave the
vehicle. Youshould, however, alwaystake the
Smart Keywith youwhen leaving thevehicle.
As long asthe Smart Keyisin the vehicle:
R the vehicle canbestart edusing theStart /
Stop button
R the electric allypowered equipment canbe
operated Star
ting theengine
Import antsafety notes G
WARNIN
G
If children areleft unsupervised inthe vehi-
cle, they could:
R operate thevehicle's equipment
Addition ally,children couldsetthe vehicle in
motion if,for example, they:
R release theparking brake
R shift theautomatic transmission outof
park position 005D
R start theengine
There isarisk ofan accident andinjury.
Never leavechildren oranimals unattended
in the 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. G
DANGER
Combustion enginesemitpoisonous
exhaust gasessuchascarbon monoxide. 126
DrivingDriving
andparking

Inhaling
theseexhaustgases ishazardo usto
heal thand canresul tin poiso ning. There isa
risk offatal injury. Therefore, neverleavethe
engine running anenclosed spacewithou t
adeq uate ventilation. G
WARNING
Flamma blemateria lsintroduced through
environmental influenceorby animal scan
ignite ifin contact withtheexhau stsystem
or parts ofthe engine thatheat up.There is
a risk offire.
Carry outregul archecks tomake surethat
there arenoflamma bleforeign materia lsin
the engine compartment orinthe exhau st
system.
Gene ralnotes The
engine runsatahigher speedduringthe
cold start procedu reso that thecataly ticcon-
verter canreach operatingtemperature more
qui ckly. Thesound ofthe engine maychange
duri ngthis time.
Automatic transmission X
Shift thetransmission topositio n005D
(Y page 134).
The transmission positionindicator onthe
multifu nctiondisplayshows 005D
(Y page 134).
i You
canstart theengine intransmission
positio ns005D and 005C.
Start ingprocedure withtheSmart Key To
start theengine usingtheSmartKey instead
of the Start/St opbutton, pullthe Start/St op
button outofthe ignition lock.
X Turn theSmartKey topositio n0049 inthe igni-
tion lock (Ypage 125)andrelea seitas
soon asthe engine isrunning.
Start ingprocedure withtheStart /
Stop button The
Start/St opbutton canbeused tostart the
vehicle manuallywithou tinserting theSmart-
Key into theignition lock.TheStart/St opbut- ton
must beinserted inthe ignition lockand
the SmartKey mustbeinthe vehicle .This
mode forstarting theengine operatesinde-
pendently ofthe ECO start/stop automatic
engine startfunction.
You canstart theengine ifavali dSmartKey is
in the vehicle .Switch offthe engine and
alw ays take theSmartKey withyouwhen leav-
ing the vehicle ,even ifyou only leaveitfor a
short time.Payattention tothe important
safety notes.
X Depress thebrake pedaland keep it
depres sed.
X Press theStart/St opbutton once
(Y page 125).
The engine starts.
Start ingprocedure viasmart phone Observe
theimportant safetynotesonstarting
the engine (Ypage 126).
You canalso start yourengine viayou rsmart-
phone fromoutsid ethe vehicle .In this case,
the previou slyselected climatecontrolsetting
is activated. Inthis way youcan cool orheat
the interior ofthe vehicle beforestarting the
journey.
Only start theengine viayou rsmartphone ifit
is safe tostart andruntheengine whereyour
vehicle isparked.
Observe thelega lstipul ations inthe area
where yourvehicle isparked. Enginestartvia
smartphone maybelimi ted tocertain coun-
tries orregions.
You canexecute amaximum oftwo consecu-
tive starting attempts viayou rsmartphone. If
you insert theSmartKey intotheignition lock,
you can carry outtwo more starting attempts.
Once youhave started theengine, youcan
switch theengine offvia you rsmartphone at
any time.
You canonly start theengine viayou rsmart-
phone if:
R the SmartKey isin the ignition lock
R park positio n005D isselected
R the accelera torpeda lis not depres sed
R the alarm for the anti-theft alarm system is
not set
R the panic alarm isnot activated
R the hazard warning lampsare switched off
R the hood isclosed Drivi
ng
127Drivi ngand parking Z

ECO
star t/s top functi on
Intr odu ction The
ECO start /stopfun ction swit ches the
eng ineoffauto maticall yif th eveh icle isstop-
ped unde rcer tain condition s.
The enginestart sauto maticall ywhen the
driv erwant sto pull away again.The ECO
st art /stopfun ction thereb yhelps youto
reduc eth efuel consump tionand emis sionsof
your vehicle.
Imp ortant safety notes G
WAR
NING
If th eeng ineisswit ched off auto maticall y
and youexitth eveh icle,th eeng ineis
res tartedauto maticall y.The vehicle may
begin moving.Ther eis arisk ofacc iden tand
inj ury.
If you wish toexi tth eveh icle,always turn
off theign ition and secure theveh icle
again stroll ing away.
Gener alnot es 0043
ECO start /stopdispl ay
The ECO start /stopfun ction isact ivat ed
when everyoustart theeng ineusin gth e
Sm artKey ortheSt art /S topbutt on.
If th eeng inehas been switched off auto mati-
cally bytheECO start /stopfun ction ,th e00D6
ECO symb olisshow nin themult ifunction dis-
play.
Mer cedes -AMGvehi cles: theECO start /stop
fun ction isavailabl eon lyin driv epro gram 0065.
Aut oma ticengine switch-off If
th eveh icle isbrak edtoast ands tillwith the
tr ans miss ioninposit ion005Bor005C, theECO
st art /stopfun ction will swit choff theeng ine
auto maticall y. The
ECO start /stopfun ction isoper ational
when :
R theind icat orlamp intheECO buttonis lit
gre en
R theoff -road program isdeac tivate d
R theout side temper atureis with intheran ge
th at issuit able forthesyst em
R theeng ineisat norm aloper atingte mper a-
tur e
R theset temper aturefor theveh icle interio r
has been reached
R thebat tery issuff iciently ch arge d
R thesyst emdetectsth at thewind shieldis
no tfog ged upwhen theair- con dition ing sys-
te m isswit ched on
R thehood isclo sed
R thedriv er'sdoor isclo sed and thedriv er's
seat beltisfast ened
All oftheveh icle'ssyst ems remainactive
when theeng ineisstopped automaticall y.
The HOLD function can also beact ivat edifth e
eng inehas been switched off auto maticall y.It
is then notnec essar yto con tinue applyin gth e
brak esdurin gth eauto maticstop phase .When
you depr esstheacc eler atorpedal, theeng ine
st art sauto maticall yand thebrak ingeffect of
th eHO LD function isdeac tivate d.
Aut omat iceng ineswit ch-off can takeplac ea
max imum offour timesinarow (initial stop,
th en three subse quentst ops) .
Aut oma ticengine star t The
enginestart sauto maticall yif:
R you switchoff theECO start /stopfun ction
by pres singth eECO button
R in trans miss ionposit ion005Bor005C, thebrak e
pedal isrele ased andtheHO LD function is
no tact ive
R you depr esstheacc eler atorpedal
R you engage revers egear 005E
R you mov eth etrans miss ionout ofposit ion
005D
R you activat eth eoff -road program
R you unfasten your seatbeltoropen thedriv -
er' sdoor
R theveh icle start sto roll
R thebrak esyst emrequi resthis
R thete mper aturein theveh icle interio rdevi -
ate sfrom theset range Driv
ing
129Drivingand parking Z

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

Problem
Possible
causes/co nsequences and0050 0050
Solutions The
engine isnot run-
ning smoothly andis
misfiring. There
isamalfunction inthe engine electron icsorinamechanical
componen tof the engine management system.
X Only depress theaccelerator pedalslightly.
Otherwise, non-combusted fuelmay getinto thecatalytic con-
verter anddamage it.
X Have thecause rectified immediately ataqual ified specialist
workshop. The
coolant tempera-
ture gauge shows a
value above 248‡
(120 †).The warning
lamp mayalsobeon
and awarning tonemay
sound. The
coolant levelistoo low. Thecoolant istoo hotand theengine is
no longer beingcooled sufficiently.
X Stop assoon aspossible andallow theengine andthecoolant to
cool down.
X Check thecoolant level(Ypage 277). Observe thewarning notes
as you dosoand add coolant ifnecessary. Notes
ontowing vehicles
The vehicle isnot suitable forattaching tow
bar systems, suchasthose usedforflat tow-
ing ordinghy towing.
Att aching orusing towbarsystems mayresult
in damage tothe vehicle.
When towing avehicle withtowbarsystems,
safe driving characterist icscannot beguaran-
teed forthe towing vehicle orthe towed vehi-
cle.
The vehicle/trailer combinationmayswerve.
Observe thepermissible towingmethods
(Y page 301)andthenotes ontowing with
both axles onthe ground (Ypage 301). DYNAMIC
SELECTbutt on(all vehi-
cles except Mercedes-AMG vehicles)
Use theDYNAMIC SELECTbutton tochange
the drive program. Depending onthe drive pro-
gram selected thefollowing vehiclecharacter-
istics willchange:
R the drive (engine andtransmission manage-
ment)
R the sound ofthe exhaust system(vehicles
with sports exhaust system)
R the steering
R the availa bilityofthe ECO start/ stopfunc-
tion
R the climate control Each
timeyoustart theengine withtheSmart-
Key orthe Start /Stopbutton, driveprogram C
is activated. Forfurther information about
startin gthe engine, see(Ypage 126). X
Press DYNAMIC SELECTbutton 0043asmany
times asnecessary untilthedesired drive
program isselected.
The selected driveprogram appearsinthe
multifunct iondisplay .Aft erfive seconds, the
display goesoutand thestatus symbol of
the selected driveprogram appears.
In addition, thecurrent driveprogram set-
tings aredisplay edbriefly inthe multimedia
system display.
i In
afew countr ies,theECO start/ stop
funct ionisdeactivated atthe factory dueto
the availa blefuel grade. Inthis case, the
ECO start/ stopfunct ionisnot availa blein
any drive program, regardless ofthe display
in the multimedia systemdisplay. 132
DY
NAMIC SELECTbutt on(all vehicl esexce ptMercedes-AMG vehicles)Driving andparking

Dep
ressing the brakeand pushi ng the DIRECT
SELEC Tlever upordown disen gage sthe park-
ing lock. The transmi ssion isin neu tral005C.
At transmi ssion fluidtemp eratures below 00F84 ‡
(00F8 20 †),yo ucan onlyshi ftou tof park positio n
005D into anothertra nsmi ssion positio nwh en
the engineisrunning .
In ord erto shi ftfro mpark positio n005D directl y
into 005Eor005B:
R de pre ssthe brakepedaland
R pu sh the DIRECT SELEC Tlever upordown
pa st the first po int ofres istance
En gag ingpark position Pauto mati-
ca lly Pa
rk positio n005D isau toma tically eng aged if:
R yousw itch offthe engineusing the Sma rt-
Key and remove theSma rtKey
R yousw itch offthe engineusing the Sma rt-
Key orusing the Star t/Stop button and
op en the driver 'sdo or orfro nt-pa ssenge r
do or
R youop en the driver 'sdo or wh en the vehicle
is sta tionar yor wh en drivin gat aver ylo w
sp ee dand thetransmi ssion isin po sitio n005B
or 005E
In certa insitua tions, the automa tictransmi s-
si on shifts automa tically to tra nsmi ssion posi-
tio n005D ifthe HOLD functio nor Activ eDis -
tance AssistDISTR ONICis acti vated .Ob ser ve
the informa tionon the HOLD functio n
(Y page 166 )and onActiv eDis tance Assist
DISTR ONIC(Y page 162 ).
En gag ingrev ersege ar R !
Onl
ymov ethe automa tictransmi ssion to
005E when the vehicleis sta tionar y.
X Dep ressthe brakeand keepit pre sse d.
X Pu sh the DIRECT SELEC Tlever uppast the
fir st po int ofres istance .
The ECO start/sto pfu nctio nis not availabl e
wh en rev ers ege ar iseng aged .Fur therinfo r-
ma tionon the ECO start/sto pfu nctio n
(Y page 129 ). Shi
ftin gto neutral N G
WA
RNING
If chi ldren areleft uns uperv ised inthe vehi-
cle ,the ycou ld:
R op era tethe vehicle's equipme nt
Add itiona lly, chi ldren couldset the vehiclein
moti onif,for exa mpl e,the y:
R rel ease the parkin gbra ke
R shi ftthe automa tictransmi ssion outof
pa rk positio n005D
R sta rtthe engine
The reisaris kof an acc ident and injury.
Nev erleav echi ldren orani ma lsuna ttend ed
in the vehicle.
Wh enleav ing the vehicle, alwa ystake the
Sma rtKeywi th youand lock the vehicle. Thi s
al so appliesfor the DigitalVeh icleKey ifthe
"Di gital Veh icleKey "fu nctio nis acti vated via
Me rced esme conne ct.
X Ifthe transmi ssion isin po sitio n005B or005E:
pu sh the DIRECT SELEC Tlever upordown
to the first po int ofres istance .
X Ifthe transmi ssion isin po sitio n005D:
de pre ssthe brakepedaland push the
DIR ECT SELEC Tlever upordown tothe first
po int ofres istance .
If yo usw itch theengineoffwith the transmi s-
si on inpo sitio n005E or005B, theautoma tictrans-
mis sion shifts to005C automa tically.
With theSmartK ey:if yo uthe nop en the driv-
er' sdo or orthe front-pa ssenge rdo or or
rem ove theSma rtKeyfro mthe igniti on, the
au toma tictransmi ssion shifts to005D automa ti-
cal ly.
With theStart/ Stopbutto n:ifyo uthe nop en
the driver 'sdo or orthe front-pa ssenge rdo or,
the automa tictransmi ssion shifts to005D auto-
ma tica lly.
If yo uwa ntthe automa tictransmi ssion to
rem ain in neu tral005C, e.g.wh en havin gthe
veh iclecle ane din an automa ticcar wash with
a tow ingsystem :
X Veh
icle swi th the Start-S topbutto n:
rem ove theStar t-Stop button fromthe igni-
tio nlock.
X Inse rtthe Sma rtKeyinto theigniti onlock. Au
tomati ctrans mission
135Dr ivi ng andparki ng Z