start stop button MERCEDES-BENZ GLA 2020 Owner's Manual

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

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

0076 R
Rej ects or ends acall
R Exits th ephon ebook /redial memory 0061 R
Mak esoracc eptsa call
R Swi tches tothered ialmem ory Mu
ltifu nct ion displa y 0043
Perman entdisp lay:outside tempe rature or
spee d(Y page 199)
0044 Time
0087 Textfie ld
0085 Men ubar
0083 Drive program (Ypage 134)
0084 Tran smissio npos ition (Ypage 136)
In Mer cedes- AMGveh icles, theind icat ors in
th elower andupper partofthemult ifunction
disp laydiffer from thedisp lays shownhere.
X To dis pla ymen ubar 0085:pressthe0059
or 0065 buttonon thest eer ing whee l.
If you donotpre ssthebut tons any longer ,
men ubar 0085isfade dout afterafew sec-
on ds.
Tex tfie ld0087 sho wsthesele cted men uor
subm enuas well asdisp laymes sage s.
i Se
tth etime usin gth emult imed iasyst em;
see theDi git alOper ator'sMan ual.
Th efoll owing messagesma yap pea rin the
mu ltifu nct ion displa y:
R 0097Gears hiftrec omm endat ion,when shifting
man ually (Ypage 140)
R 005DA ctive Park ingAssist (Ypage 174) R
CRU ISE CRU
ISE Cruis eco ntrol (Ypage 157)
R 00D6 ECOstart /stopfun ction (Ypage 129)
R 00D9 HOLD function (Ypage 165)
R DSR DSR
Downh illSp eed Regulat ion
(Y page 169) Menu
sand submen us Menu
overview
Usi ngthe0059 or0065 buttonon thest eer ing
whee l,open themen ubar.
Oper ating theon -board comput er
(Y page 189).
De pen dingon theequip mentins talled inthe
veh icle, you can callupthefol lowin gmen us:
R Tri p Tri
pmen u(Y page 192)
R Nav i Nav
imen u(n avig ation instruct ions)
(Y page 193)
R Aud io Aud
iomen u(Y page 194)
R Tel Tel
men u(teleph one) (Y page 195)
R Dri veAssist Dri
veAssistmen u(ass istanc e)
(Y page 196)
R Ser v. Ser
v.men u(Y page 198)
R Set t. Set
t.men u(set ting s)(Y page 198)
R AMG AMG
men u(Mer cedes- AMGveh icles)
(Y page 201)
The displays fortheAud io Aud
io,Nav i Nav
iand Tel Tel
men usmay differ slig htly from those inyour
veh icle.
The exampl esgiven inthis Oper ator'sMan ual
apply toveh icles equip pedwithCOMA ND. Menu
sand submenus
191On-boar dcomp uter and displa ys Z

RAC
ETIME R Di
spl aying and startin gRAC ETIME R 0043
Lap
0044 RAC ETIM ER
The RAC ETIM ERisonly intend edfor useon a
clo sed race circuit.Do not usethe functi onon
pu blic roa ds.
Yo ucan startthe RAC ETIM ERwhen the
engi neisrunni ngorifthe Smar tKeyisin pos i-
tion 0048inthe igniti onlock.
X Pre ss0059 or0065 onthe stee ring wheel
to sel ect the AMG AMG
menu .
X Pre ssthe 0063 button repeatedl yunti lthe
RAC ETIM ERappea rs.
X To start: pressthe 0076 button tostar tthe
RAC ETIM ER.
Di spl aying the interme diatetime X
Pre ssthe 0059 or0065 button tosel ect
Inte rm.Time Inte
rm.Time.
X Pre ss0076 toconfi rm.
The inter mediate time appea rsfor five sec-
onds . Startin
gane wlap 0043
RAC ETIM ER
0044 Fastest lap time (best lap)
0087 Lap
X Pre ss0076 toconfi rmNew Lap New
Lap.
i It
is pos sibleto store amaxi mum ofsix-
teen laps. The 16th lap can only becomp le-
ted with Fini shLap Fini
shLap.
Stopp ingthe RAC ETIME R X
Pre ssthe 0038 button onthe stee ring
wh eel .
X Co nfirm Yes Yes
with 0076.
The RAC ETIM ERinter ruptstimi ngifyo ustop
the vehicleand turn theSmar tKeytopos ition
0047 inthe igniti onlock. Ifyo uturn theSmar t-
Key topos ition 0049 and then press0076 Start Star
t
to confi rm,timingiscontinu ed.
Res ettingthe curre ntlap
X Stop theRAC ETIM ER.
X Pre ssthe 0059 or0065 button tosel ect
Rese tLap Rese
tLap.
X Pre ss0076 tores etthe lap time to"0" .
De leting alllaps 20
2 Men
usand submen usOn-bo ard computer anddisplays

X
Swi tch offthe engi ne.
X Vehi cles without KEYLES S-GO :remo ve
the Smar tKeyfrom theigniti onlock.
X Vehi
cles with KEYLES S-GO start-fun c-
tio nor KEYLES S-GO :ope nthe driver' s
doo r.
The vehicleelectro nicsarenow inpos ition
005A. Thisis the same asthe Smar tKeyhaving
bee nremo ved.
X Vehi
cles with KEYLES S-GO start-fun c-
tio nor KEYLES S-GO :remo vethe Start/
Stop button from theigniti onlock
(Y page 125 ).
X Ma kesure that theengi necanno tbe star ted
via your sma rtpho ne(Ypage 126 ).
X Ma kesure that thepasse nger sare not
enda ngeredasthey doso. Makesure that
no one isnea rthe danger areawh ile a
wh eel isbei ng cha nged .Anyo newhois not
di rectl yas sis ting inthe wheel change
sho uld, for exa mpl e,stand behindthe bar-
rie r.
X Ge tou tof the vehicle. Pa yattenti ontotraf-
fic condi tions when doing so.
X Close thedriver' sdoo r. MOE
xtendedtires(ti res with run-fl at
prope rties)
Gen eral notes Wi
th MOExtend edtire s(ti res with run flat
cha racte ristics) ,yo ucan continu eto drive your
veh icleeve nif there isatotal loss ofpre ssu re
in one ormore tires.The affected tiremus tnot
sho wany clearlyvis ible da mag e.
You canreco gnize anMOExtend edtire bythe
MOExtend edmar king which appea rson the
sid ewallof the tire.You willfind thismarking
next tothe tire size designati on,the load -bea r-
ing capacityand thespeedindex
(Y page 321 ).
MOExtend edtire smay beused only incon-
juncti onwith an acti vate dtire pressu reloss
wa rning system (Cana daonly )or tire pressu re
moni tor(USA only). If
apres sure loss warn ingmess age
appears inthe multi functiondis play :
R obs erve theinstru ctions inthe displ aymes -
sa ges (Ypage 224 ).
R check thetire fordamag e
R ifdri ving on,observe thefollowi ng notes
The driving distance possiblein run-fl atmod e
is ap pro xima tely50miles(80 km)wh en the
veh icleis pa rtia lly la den. Whenthe vehicleis
ful lyladen itis ap pro xima tely19miles
(30 km).
In addition tothe vehicleload ,the driving dis-
tance possibledep ends upon:
R Veh iclespe ed
R Ro ad condi tion
R Ou tsid etemp erature
The driving distance possiblein run-fl atmod e
may bered uce dby extrem edri ving condi tions
or mane uvers,oritcan beincre ased throu gha
mod eratesty leof dri ving .
The driving distance possiblein run-fl atmod e
is cou nted from themome ntthe tire pressu re
lo ss wa rning appea rsinthe multifunction dis-
pl ay .
You mustnot excee dthe maxi mum permis si-
bl e spe edfor limp-h omemodeof 50 mph
(80 km/h ).
Whe nrep lacing oneoralltire s,plea se obs erve
the followi ng spe cificati ons foryour veh icle's
tire s:
R Size
R Type and
R The "MOExtend ed"marking
If atire hasgone flatand canno tbe rep laced
wi th an MOExtend edtire ,a stand ardtire may
be used asatemp orarymea sure. Makesure
that youus ethe proper size andtype(su mmer
or winter tire).
Veh icles equ ipped with MOExtend edtire sare
not equipped with aTIR EFIT kitatthe facto ry.
It is there forerecommend edthat youad dition-
al ly equ ipyour veh iclewi th aTIR EFIT kitifyo u
mou nttire sthat donot feature run-fl atcha rac-
teri stics ,e.g. winter tires.ATIR EFIT kitmay be
obta inedfrom aqu alifi ed spe cialist wo rksho p. Fl
at tire
289Breakdo wnassistanc e

The
wear pattern son the front andrear tires
differ, depending onthe operating conditions.
Rotate thewheels beforeaclear wearpattern
has formed onthe tires. Fronttires typically
wear more onthe shoulders andtherear tires
in the cent er.
On vehicles thathave thesame sizefront and
rear wheels, youcan rotat ethe wheels accord-
ing tothe inter valsinthe tire manufact urer's
warranty bookinyour vehicle document s.Ifno
warranty bookisavailabl e,the tires should be
rotat edevery 3,000 to6,000 miles(5,000 to
10,00 0km). Dependin gon tire wear, thismay
be required earlier.Donot change thedirec-
tion ofwheel rotation.
Clean thecont actsurfaces ofthe wheel and
the brake discthoroughly everytimeawheel
is rotat ed.Check thetire pressure and,ifnec-
essary, restartthetire pressure losswarning
system (Canada only)orthe tire pressure
monit or(USA only). Direction
ofrota tion
Tires withaspecified directionofrotat ionhave
additional benefits,e.g. ifthere isarisk of
hydroplaning. Theseadvantages canonly be
gained ifthe tires areinstalled correspon ding
to the direction ofrotat ion.
An arrow onthe sidewall ofthe tire indicates
its correc tdirection ofrotat ion. Storing
wheels
Stor ewheels thatarenot being usedinacool,
dry and preferably darkplace. Protectthe tires
from oil,grease, gasoline anddiesel. Mounting
awheel
Prepa ringthevehicle X
Stop thevehicle onsolid, non-slippery and
level ground.
X Apply theelectric parking brakemanually.
X Bring thefront wheels intothestraight-
ahead position.
X Shift thetrans mission toposition 005D.
X Switch offthe engine. X
Vehicles withoutKEYLESS-GO: remove
the Smart Keyfrom theignition lock.
X Vehicles
withKEYL ESS-GO start-func-
tion orKEYL ESS-GO: openthedriver's
door.
The vehicle electron icsare now inposition
0092. This isthe same as“key removed”.
X Vehicles
withKEYL ESS-GO start-func-
tion orKEYL ESS-GO: removetheStart /
Stop button fromtheignition lock
(Y page 125).
X Make surethattheengine cannotbe start ed
via your smartphon e(Y page 84).
X Ifincluded inthe vehicle equipment, remove
the tire- change toolkitfrom thevehicle.
X Safeguard thevehicle against rollingaway
(Y page 145).
i Apart
fromcertaincount ry-specific varia-
tions, thevehicles arenot equipped witha
tire- change toolkit.Some toolsforchanging
a wheel arespecific tothe vehicle. Formore
inform ationonwhich toolsarerequired to
perform awheel change onyour vehicle,
consult aqualified specialist workshop.
Necessary tire-changing toolscaninclude,
for example:
R Jack
R Wheel chock
R Lug wrench
Securing thevehicle toprevent itfrom
rolling away If
your vehicle isequipped withawheel chock,
it can befound inthe tire- change toolkit
(Y page 288).
The folding wheelchock isan additional safety
measure toprevent thevehicle fromrolling
away ,for example whenchanging awheel. Changing
awheel
327Wheels andtires Z