2020 MERCEDES-BENZ GLA SUV engine overheat

R
Activa teDSR. Ifthi sis not sufficie nt, bra ke
gen tly.Whe ndo ing so,makesure tha tthe
veh icleis fac ing inthe directi onofthe line
of fall.
R Ch eck thatthe brakes arewo rking norma lly
afte ra long downh ill stre tch.
Off-r oadABS isacti vated when the off-r oad
pro gramissel ecte d.
At spe edsbe low 18 mph (30km/h ),the front
wh eelslock cyc lical lydu ring braking .The dig-
gi ng-i neffe ctach ieved inthe proces sred uce s
the stop ping dista nce onoff-r oadterra in.The
stee rability of the vehicleis consi derably
red uce difthe wheelslock. Dri
ving sys tems Crui
secontro l
Ge neral notes Cr
uise contro lma inta insaconsta ntroa d
spe edfor you. Itbra kes automa tically in ord er
to avoid exce eding the setspeed.On long and
stee pdo wnh ill gra dients, especially ifthe vehi-
cle islade n,youmu stsel ect alow gea rin
goo dtime .Yo unee dto shi ftma nua lly us ing
the stee ring wheelpa dd leshi fters before hand.
By doing so,youwi llma keuseof the braking
effe ctof the engine.Thi srel ieves theload on
the brakesystem andprevents thebrakes
from overheating and wearing too quickl y.
Whe nthe engineisrunning ,yo ucan usethe
cru ise contro lle ver tolimit the speedtoany
spe edbetwe en20 mph (30km/h )and the
tech nically pe rmi tted maximu mspe edofthe
veh icle.
Use cruise contro lif roa dand trafficcond i-
tio ns ma keitap pro priate toma inta inastea dy
spe edfor apro longe dpe rio d.
The speedindicated inthe speedome termay
di ffer slig htl yfrom thespeedstor ed.
Impo rtant safetynotes If
yo ufai lto adaptyo ur driving style,cru ise
contro lcan neither reduce theriskof an acci -
de nt nor override the laws ofphy sics. Cruise
contro lcanno ttake intoacco unttheroad,
traf ficand weath ercond itions. Cruise contro l
is onl yan aid. Yo uar eres ponsi ble for the dis-
tance tothe vehiclein front, forveh iclespe ed, for
braking ingoo dtime andforstaying inyour
la ne.
Do not usecru ise contro l:
R in roa dand trafficcond itions which donot
al lo w yo uto ma inta inaconsta ntspe ed,e.g .
in hea vytraf ficoron windi ng roa ds
R on slip pe ry roa dsu rfa ces .Bra king oracce l-
era ting couldcau sethe drive wheelsto lose
trac tionand thevehiclecou ldthen skid
R in po or vis ibility ,e.g .du eto fog ,hea vyrain
or snow
If ther eis acha nge ofdri ver s,ad vis ethe new
dri ver ofthe speedstor ed.
Crui secontro lle ve r 0043
Activa tesorincr eases speed
0044 Activa tesorred uce sspe ed
0087 Dea ctiva tescruise contro l
0085 Activa tesatthe current speedorlast
stor edspe ed
Whe nyo uacti vate cru ise contro l,the stor ed
spe edissho wninthe multifu nctio ndispl ayfor
fiv esec ond s.
Ac tiv atio nco ndi tions To
acti vate cru ise contro l,allof the followi ng
acti vatio ncond itions mustbe fulfilled :
R the electri cpa rking brakemu stbe released .
R ESP ®
mu stbe acti ve,butnot intervening .
Sto ring,main tainingand calling up a
spe ed Sto
ringand main tainingthe curren t
spe ed
Yo ucan storethe current speedifyo uar e
dri ving faster than20 mph (30km/h ). Dri
ving sys tems
157Dr ivi ng andparki ng Z

sound
andthedistance warninglampwilllight
up inthe instrument cluster.Brakeimmedi-
ately inorder toincrease thedistance tothe
vehicle infront ortake evasive actionprovided
it is safe todo so.
Act ive Distance AssistDISTRONIC operatesin
the speed rangebetween 0mph (0km/h) and
120 mph (200km/h) .
Change intoalower gearingood timeonlong
and steep downhill gradients. Thisisespeciall y
important ifthe vehicle isladen. Bydoing so,
you willmake useofthe braking effectofthe
engine. Thisrelieves theload onthe brake sys-
tem andprevents thebrakes fromoverheating
and wearing tooquickly.
Do not use Active Distance AssistDISTRONIC
on roads withsteep gradients.
For Active Distance AssistDISTRONIC to
assist youwhen driving, theradar sensor sys-
tem must beoperational.
As Act ive Distance AssistDISTRONIC trans-
mits radar waves, itcan resemble theradar
detectors ofthe responsible authorities.You
can refer tothe relevant chapterinthe Opera-
tor's Manual ifquestions areasked aboutthis.
i USA
only: Thisdevice hasbeen approved
by the FCC asa"Vehicul arRada rSystem".
The radar sensor isintended foruse inan
automotive radarsystem only.Removal,
tampering, oraltering ofthe device willvoid
any warranties, andisnot permitted bythe
FCC. Donot tamper with,alter, oruse inany
non- approved way.
Any unauthorized modificationtothis device
could voidtheuser's authority tooperate
the equip ment.
i Canada
only:Thisdevice complies with
RSS-21 0of Industry Canada.Operation is
subject tothe followi ngtwo conditions:
1. This device maynotcause interferen ce,
and
2. This device mustaccept anyinterferen ce
received, includinginterferen cethat may
cause undesired operationofthe device.
Removal, tampering, oraltering ofthe
device willvoid anywarranties, andisnot
permitted. Donot tamper with,alter, oruse
in any non- approved way.
Any unauthorized modificationtothis device
could voidtheuser's authority tooperate
the equip ment. Importa
ntsafety notes G
WARNING
Act ive Distance AssistDISTRONIC doesnot
react to:
R people oranimals
R stationary objectsinthe road, e.g.stop-
ped orparked vehicles
R oncoming vehiclesandcrossing traffic
As aresult, Active Distance Assist
DISTRONIC mayneither givewarnings nor
intervene insuch situations. Thereisarisk
of an accident.
Always paycareful attentiontothe traffic
situation andbeready tobrake. G
WARNING
Act ive Distance AssistDISTRONIC cannot
alwa ysclearly identify otherroadusers and
complex trafficsituations.
In such cases, Active Distance Assist
DISTRONIC can:
R give anunnecessary warningandthen
brake thevehicle
R neither giveawarning norintervene
R accelerate orbrake unexpectedly
There isarisk ofan accident.
Continue todrive carefully andbeready to
brake, especial lyifAct ive Distance Assist
DISTRONIC warnsyou. G
WARNING
Act ive Distance AssistDISTRONIC brakes
your vehicle withupto50% ofthe maximum
possible deceleration. Ifthis deceleration is
not sufficient, Active Distance Assist
DISTRONIC alertsyouwith avisual and
acoustic warning. Thereisarisk ofan acci-
dent.
Adjust yourspeed inthese cases andmain-
tain sufficient distance.
Apply thebrakes yourselfand/or takeeva-
sive action. Driving
systems
159Drivingandparking Z

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

Disp
laymes sages Poss
iblecauses/co nsequences and 0050 0050
Solu tions 003D
See Operator'sMan ‐ See
Operator'sMan ‐
ual ual The
battery isno tbein gch arg ed.
A warn ingtone also soun ds.
Pos siblecaus esare:
R adef ective altern ator
R ato rn poly- V-belt
R amalf unction intheelec tron ics
! Do
notdri ve any further. Other wise theen gin emay overheat.
X Pull overand stop theveh iclesaf ely and switchoff theen gin e,
payin gatt ention toroa dand traff icco nd ition s.
X Se cur eth eveh icleagain strol lingaway (Ypage 145).
X Con sult aqualif iedspecialistwor kshop . 003D
Sto pVeh icleSee Sto
pVeh icleSee
Ope rator'sMan ual Ope
rator'sMan ual The
battery isno longer bein gch arg edand theco nd ition ofcharg e
is toolow.
A warn ingtone also soun ds.
X Pull overand stop theveh iclesaf ely and switchoff theen gin e,
payin gatt ention toroa dand traff icco nd ition s.
X Se cur eth eveh icleagain strol lingaway (Ypage 145).
X Obs erveth eins truct ionsin thedisp laymes sage 003D SeeOper‐ See
Oper‐
ato r's Manual ato
r's Manual.
X Con sult aqualif iedspecialistwor kshop . 00B2
Che ckEngine Oil Che
ckEngine Oil
At NextRef uel ing At
NextRef uel ing The
engin eoil levelhas dropped tothemin imum level.
A warn ingtone also soun ds.
! Av
oid longer journ eys when there isins ufficien ten gin eoil. You
co uld other wise damag eth een gin e.
X Chec kth eoil levelwhen next ref uelin g,at thelat est
(Y page 275).
X Ifne cessar y,add engin eoil (Ypage 276).
If th eengin eoil need stop pingup mor eoft en:
X Con tacta qualif iedspecialistwor kshop andhaveth een gin e
ch ecke d.
In for mat iononappr oveden gin eoils can beobt ained from any quali-
fie dspe cialistwor kshop oron theIn te rn et athttp :/ /
bev o.mer cedes -ben z.co m. 00D4
Fue lLev elLow Fue
lLev elLow The
fuel levelhas dropped intoth eres erveran ge.
X Refue lat thene ares tgas stati on. Disp
laymes sage s
219On -boar dcomp uter anddi sp lay s Z

Disp
laymes sages Poss
iblecauses/co nsequences and 0050 0050
Solu tions Sto
pVeh icleShi ft Sto
pVeh icleShi ft
to PLea veEngine to
PLea veEngine
Run ning Run
ning The
auto matictrans mis sion hasoverheated.
X Dr ive oncar eful ly.
The auto matictrans mis sion isavail able again whenthedisp lay
mes sage goesout .
If th emult ifunction disp laystill sho wsthedisp laymes sage :
X Pull overand stop theveh iclesaf ely assoo nas pos sible,payin g
att ention toroa dand traff icco nd ition s.
X Se cur eth eveh icleagain strol lingaway (Ypage 145).
X Wait untilth eauto matictrans mis sion hascooled down andthe
disp laymes sage hasdisap peared. Aux
iliary Battery Aux
iliary Battery
Mal function Mal
function The
auxiliary battery for theauto matictrans mis sion isno longer
bein gch arg ed.
X Vis itaqualif iedspecialistwor kshop .
X Un tilth en ,always shiftthetrans mis sion topos ition 005Dbefore
you switchoff theen gin e.
X Be for eleav ingtheveh icle, apply theelec tric park ingbrak e. Tra
ns. OilOverhe a‐ Tra
ns. OilOverhe a‐
ted Driveonwith ted
Driveonwith
Car e Car
e Mer
cedes -AMG vehicles: thetrans mis sion oilhas overheated.
Man ualdrive pro gram0063 and thete mpo rarily act ive man ualdrive
pro gramare nolonger avail able. Theengin epowe rout put is
red uce d.
X Allow theveh icleto cool down . 4ma
tic Currently 4ma
tic Currently
Una vailable Una
vailable 4M
ATIC has overheated.The vehicleis on lydri ven bythefron t
whee ls.
X Dr ive on.
The airflow cools 4MATIC mor equic kly.
Whe nth edisp laymes sage goesout ,4M ATIC isavail able again
and theveh icleis dri ven byallfou rwhee ls. 4ma
tic Inoperative 4ma
tic Inoperative 4M
ATIC ismalf unction ing .The vehicleis on lydri ven bythefron t
whee ls.
X Vis itaqualif iedspecialistwor kshop . 0065 The
tailgat eis open
G WAR
NING
Whe nth een gin eis run ning,exhaust gasescan enterth eveh icle
int erior ifth etai lgat eis open .
The reisaris kof pois oning .
X Clos eth etai lgat e. 228
Disp
laymes sage sOn -boar dcomp uter anddi sp lay s