coolant level MERCEDES-BENZ GLA SUV 2020 Owner's Manual

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

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

Engine
Disp
laymes sages Possi
blecauses/cons equences and0050 0050
Solu tions 00BD
Che ckCoolant Che
ckCoolant
Lev elSee Opera‐ Lev
elSee Opera‐
tor 'sManual tor
'sManual The
coolant levelis toolow.
! Av
oid longer journ eys when there isins ufficie ntcoo lant inthe
eng inecoo ling system. You couldot her wise damag eth eeng ine.
X Add coolant ,obse rving thewarn ingnotesbefo redoin gso
(Y page 277).
If you have toaddcoolan tfr equ ently:
X Con tacta qualifi edspec ialist workshopand have theeng inecoo l-
ing syst emcheck ed. 00AC The
fanmot orismalf unctionin g.
X At coo lant temper aturesbelow 248‡ (12 0†) ,dr ive to the near-
est qualifi edspec ialist workshop.
X Av oid heav yloads ontheeng ineasyou doso, e.g.driv ingin
moun tainous terrain and stop- and- gotraff ic. 00AC
Coo lantToo Hot Coo
lantToo Hot
Sto pVeh icleTur n Sto
pVeh icleTur n
Eng ine Off Eng
ine Off The
coolant istoohot .
A warn ingtone also soun ds.
G WAR
NING
Do notdriv ewhen yourengineisove rheated.This cancaus esom e
fluids whichmay have leakedintoth eeng inecom partmen tto cat ch
fir e.
St eam from theove rheatedeng inecan also causeser ious burns
whic hcan occurjus tby open ingthehood .
Ther eis arisk ofinjury.
X Pull overand stop theveh icle safe lyand switchoff theeng ine,
paying attent ion toroad andtraff iccon dition s.
X Sec ure theveh icle again stroll ing away (Ypage 145).
X Wait untilth eeng inehas cooleddown .
X Mak esure that theair supply totheeng ineradiat orisno t
bloc ked, e.g .by snow, slush orice .
X Do notst art theeng ineagain untilth edisplay message goes out
and thecoo lant temper atureis below 248‡ (12 0†). Other wise,
th eeng inecoul dbe damage d.
X Pay attent ion tothecoo lant temper aturedisplay.
If th etem peratur eincr eases again:
X Visit aqualifi edspec ialist workshop immediat ely.
Un der norm aloper atingcon dition sand with thespec ified coolant
leve l,th ecoo lant temper aturemay riseto248‡ (12 0†). 218
Displa
ymes sagesOn-boar dcomp uter and displa ys

Engine
Wa
rning/
ind icat or
lam p 00510051
Signa lty pe
Possi blecauses/cons equences and0050 0050
Solu tions 00B9
0051
The yellow CheckEn gin ewarn inglamp lightsup while theeng ineisrun ning.
Ther emay beamalf unction,for exam ple:
R in theeng ineman agem ent
R in thefuel inject ion syst em
R in theexh aust system
R in theign ition syst em
R in thefuel system
The emis sion limit values maybeexc eeded andtheeng inemay beinemer -
gen cymod e.
X Visi ta qualifi edspec ialist workshop immediat ely.
i In
som est ate s,you must immediat elyvisita qualifi edspec ialist workshop
as soon astheyellow CheckEn gin ewarn inglamp lightsup. This isdue tothe
legal requirementsin eff ect inthese state s.Ifin doubt ,ch eck whet hersuch
legal regulati onsapply inthest ate inwhic hyou arecurren tlydriv ing. 00D4
0051
The yellow reservefuel warn inglamp lightsup while theeng ineisrun ning.
The fuel levelhas dropped intoth eres erveran ge.
X Refuel atthenear estgas statio n. 00D4
0051
The yellow reservefuel warn inglamp flashes while theveh icle isin mot ion.
In addit ion,th e00B9 CheckEn gin ewarn inglamp maylight up.
The fuel fillercap isno tclo sed correctlyorthefuel systemisleak ing.
X Chec kth at thefuel fillercap iscor rectlyclosed.
X Ifth efu el filler capisnot corr ectly closed :clo sethefuel fillercap.
X Ifth efu el filler capisclosed :visi ta qualifi edspec ialist workshop. 00AC
0051
The redcoolant warn inglamp lightsup while theeng ineisrun ningand the
coo lant temper aturegage isat thest art ofthesc ale.
The temper aturesen sor forthecoo lant temper aturegauge ismalf unctionin g.
The coolant temper atureis no longer bein gmon itored. Thereis arisk ofeng ine
damag eif th ecoo lant temper atureis toohigh .
X Pull overand stop theveh icle safe lyand switchoff theeng ine,payin gatt en-
tio nto road andtraff iccon dition s.Do notcon tinue driv ingunde rany circum -
st anc es.
X Sec ure theveh icle again stroll ing away (Ypage 145).
X Con sult aqualifi edspec ialist workshop. Wa
rning and indicat orlam psintheinst rumen tclust er
239On-boar dcomp uter and displa ys Z

Exam
ple: eng ineoilcap
X Tu rn cap 0043cou nter-c lockwi seand remove
it.
X Add engineoil.
If the oille vel isat or below the MIN mark
on the oildi ps tick, add1.1 USqt(1.0 liter)
of eng ineoil.
X Re place cap 0043onthe fillerneck andturn
clo ckwi se.
Ensu retha tthe cap locks into place
sec urely.
X Ch eck theoille vel again wi th the oildi ps tick
(Y page 275 ).
Fur therinfo rma tionon eng ineoil
(Y page 338 ). Ch
eckin gand addi ngoth erservi ce
produ cts
Ch eckin gco olant leve l G
WA
RNING
The cooling system ispre ssu rize d,partic u-
la rly when the moto ris wa rm. Ifyo uop en
the cap,yo ucou ldbe sca lded ifhot coolant
sp rays out.The reisaris kof inju ry.
Let the enginecoo ldo wn befor eyo uop en
the cap.We arpro tecti veglove sand protec-
tive eyew earwh en openi ng. Open the cap
sl ow lyto release pre ssu re.
! The
coolant level mustonl ybe che cked
and correcte dwh en the enginehascoo led
do wn (coolant temp eratureund er104 ‡
(40 †).Ch ecki ngthe coolant level when the
coo lant temp eratureis ove r104 ‡(40 †)
can lead todama getothe engineorthe
eng inecoo ling system . X
Pa rk the vehicleon alevel surfa ce.
Onl yche ckthe coolant level when the vehi-
cle ison alevel surfa ce and theenginehas
coo led do wn.
X Tu rn the Sma rtKeyto positio n0048 inthe igni-
tio nlock (Ypage 125 ).
X Ch eck thecoolant temp eraturedisp layin
the instrument cluster .
The coolant temp eraturemu stbe below
104 ‡(40 †).
X Tu rn the Sma rtKeyto positio n005A
(Y page 125 )in the igniti onlock .
X Slo wlytur ncap 0043cou nter-c lockwi seand to
rel ieve exce sspre ssu re.
X Tu rn cap 0043furthe rcou nter-c lockwi seand
rem ove it.
If the coolant isat the level ofma rker bar
0087 inthe fillerneck when cold,the reis
eno ughcoo lant incoo lant exp ansion
tank 0044.
X Ifnece ssary,ad dcoo lant tha tha sbe en tes-
ted and appro ved byMe rced es-Benz.
X Re place cap 0043and turnit clo ckwi seasfar
as itwi llgo .
For furthe rinfo rma tionon coo lant, see
(Y page 339 ).
Win dshi eld wa she rsys tem G
WA
RNING
Ce rta incomp onents inthe enginecomp art-
ment, such asthe engine,ra diato rand parts
of the exhaust system ,can become very
hot. Workin gin the enginecomp artment
po ses aris kof inju ry.
Wh ere possi ble, letthe enginecoo ldo wn
and touchonl ythe comp onents descri bedin
the followi ng. En
gine compartmen t
277Mai ntenan ceand care Z

data
isdifferen tfor every vehicle andcan
deviate fromthedata shown here.Youcan
find thedata applicable toyour vehicle on
the vehicle identification plate. Vehicle
identification number(VIN) X
Slide theright -handfron tseat toits rear-
most position .
X Fold floor cover ing0043upwards.
You willsee VIN 0044.
The VINcanalso befound onthe vehicle iden-
tific ation plate(Ypage 334).
The VINcanalso befound atthe lower edgeof
the windshield (Ypage 335). Engine
number 0043
Emiss ioncontrol infor mation plate,includ-
ing the cert ification ofboth federal and
Californian emissionsstan dards
0044 VIN (onthe lower edgeofthe windshield)
0087 Engine number (stamped intothe cran k-
case) Service
product sand filling capaci-
ties Impor
tantsafet ynotes G
WARN
ING
Serv iceproduct smay bepoisonous andhaz-
ardous tohealth. Thereisarisk ofinjury.
Comply withinstruct ions onthe use, storage
and disposal ofservic eproduct son the
labels ofthe respect iveoriginal container s.
Always storeservic eproduct ssealed intheir
original container s.Always keepservic e
product sout ofthe reach ofchildren . H
Environm
entalnote
Dispose ofservic eproduct sin an envir on-
ment allyrespon siblemann er.
Serv iceproduct sinclude thefollowing:
R Fuels
R Lubrican ts(e.g. engin eoil, tran smission oil)
R Coolant
R Brak efluid
R Windshield washerfluid
R Climate control system refrigerant
Componen tsand servic eproduct smust
matc h.Only useproduct srecom mended by
Mercedes -Benz.Damage whichiscaused by
the use ofproduct swhich havenotbeen rec-
ommen dedisnot cover edbythe Mercedes -
Ben zwarrant yor goodwill gestures.Product s
approved byMercedes -Benzare listed inthis
Operator 'sManual inthe appropriate section.
Inf ormat ionontest edand approved products
can beobtained ataMercedes -BenzServ ice
Center oron the Internet at
htt p:// bevo.m ercedes- benz.com.
You canrecogniz eserv iceproduc tsapprove d
by Merc edes- Benzby the followin ginsc ription
on the contain ers:
R MB- Freigabe (e.g.MB-Freigabe 229.51)
R MB- Appr oval(e.g. MB-Appr oval229.51)
Oth erdesign ationsor rec omme ndations indi-
cat ealevel ofquality oraspecif ication in
acco rdanc ewith anMB Shee tNumber (e.g.
MB 229 .5).They have notnecessarily been
approve dby Merc edes- Benz. Serv
iceproduct sand filling capacities
335Technical data Z