2020 MERCEDES-BENZ GLA SUV engine coolant

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
ï
Tr ailer tow hitch warning
lamp *T
hered trailer hitch warning lamp is lit.
The trailer hitch is not operational. &
W
W ARNING
ARNING Risk of an accident if the ball neck is not loc ked
The trailer may become de tach ed. #
Stop theve hicle immediately in accordance with the tra1c conditions. Do not continue driving. #
Uncouple the trailer and secure it against rolling away. #
Initiate a new swivelling procedu reand do not re-couple the trailer until the display message disappears. #
Notethe messages on the instrument displa y.Engine
Engine
W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
ÿ
Coolant warning lamp (red) *T
he red coolant warning lamp is lit while the engine is running.
Po ssible causes:
R The temp erature sensor is malfunctioning
R The coolant le vel is too low
R The air supply tothera diator is obstructed
R The radiator fan is faulty 490
490
Display message
s andwarning/indicator lamps

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
R The engine coolant pump is faulty
If th ere is an additional warning tone, the coolant temp erature has exceeded 120°C. &
W
WARNING
ARNING Risk of burns when opening the bonnet
If yo u open the bonnet in theeve nt of an overheated engine or /re in the engine compartment, thefo llowing situa-
tions may occur:
R You may come into contact with hot gases.
R You may come into contact with other escaping hot operating 0uids. #
Before opening the bonnet, allow the engine tocool down. #
Intheev ent of a /re in the engine compartment, keep the bonnet closed and call the /re service. #
Stop immediately in accordance with the tra1c conditions and switch o. theve hicle. Do not continue driving. #
Notethe messages on the instrument displa y.
If t If t he coolant t
he coolant t em
em per
per atur
atur e displa
e displa y is at t
y is at the low
he lower end of t
er end of t he t
he tem
emper
per atur
atur e scale:
e scale: #
Consult a quali/ed specialist workshop.
If t
If t he coolant t he coolant t em
emper
per atur
atur e displa
e displa y is at t
y is at the upper end of t
he upper end of t he t
he tem
emper
per atur
atur e scale:
e scale: #
Exit theve hicle and keep a safe distance from it until the engine has cooled down. #
Check the coolant le vel (/ page 347). Display message
s andwarning/indicator lamps
491
491

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Make sure that the air supply tothera diator is not obstructed. #
Avoiding high loads on the engine, drive tothe nearest quali/ed specialist workshop. In doing so, ensu rethat the
coolant temp erature display remains below 120°C.
ÿ
Coolant warning lamp (yel-
low) *T
he yellow coolant warning lamp is lit while the engine is running.
Po ssible causes:
R The temp erature sensor is malfunctioning
R The charge air, transmission oil or battery cooling is faulty
R The radiator shutters are bloc ked or defective #
Avoiding high loads on the engine, drive tothe nearest quali/ed specialist workshop.
; Engine diagnosis warning
lamp *T
he yellow engine diagnostics warning lamp is lit while the engine is running.
A malfunction has occur red in the engine, theex haust system or the fuel system.
The emissions limit value may ha vebeen exceeded and the engine may be running in eme rgency operation mode. #
Have theve hicle checked as soon as possible at a quali/ed specialist workshop.
V
V ehicles wit
ehicles wit h a diesel engine:
h a diesel engine: the fuel tank may ha vebeen run dr y. #
Start the engine thre eto four times aTer refuelling.
If th eye llow engine diagnosis warning lamp goes out, emer gency ope ration mode is cancelled. The vehicle need not
be checked. 492
492
Display messages and
warning/indicator lamps

Ac
tivating/deactivating the A/C func-
tion (control panel).................................1 59
Ac tivating/deactivating the A/C func-
tion (MBUX multimedia system).............. 159
Ac tivating/deactivating the synchro-
nisation function (control panel).............1 60
Ac tivating/deactivating the synchro-
nisation function (MBUX multimedia
system).................................................. 160
Air-recirculation mode (with /ne parti-
cle pre/lter)...........................................1 60
Au tomatic control................................. .159
Calling up the air conditioning menu....... 159
Demisting the windscreen...................... 158
Demisting windo ws................................ 160
Fr ont air vents........................................ 165
Immediate pre-entry clima tecont rol....... 163
No te...................................................... 158
Pre-entry climate control at depa rture
time.......................................................1 62
Pre-entry climate control using theke y... 161
Re ar air vents......................................... 166
Re sidual heat......................................... 160
Setting (MBUX multimedia system)......... 159
Setting the air distribution...................... 158
Setting the air0ow.................................. 158 Setting
theve hicle interior temp era-
ture....................................................... 158
St ationary heater/ ventilation................. 164
Switching there ar wind owheater
on/o.................................................... 158
THERM ATIC cont rol panel...................... 158
THERMOTRONIC control panel............... 158
Ve ntilating theve hicle (con venience
opening).................................................. 96
Clot
Clot hes hook hes hook ................................................ 130
Co-dr
Co-dr iv
iver airbag
er airbag shut
shuto.
o.
see Automatic co-driver airbag shuto.
Coc
Coc kpit
kpit
Overview.............................................. 6, 10
Co.ee
Co.ee cup symbol
cup symbol
see ATTENTION ASSIST
Collision det
Collision det ection (park
ection (parked v
ed vehicle)
ehicle)
Information............................................ 224
Combination switch
Combination switch .................................... .141
Com
Com ponent-speci/c
ponent-speci/c inf
infor
ormation
mation................... 400
Com
Com put
puter
er
see On-board computer
Conv
Conv enience closing
enience closing...................................... 97 Conv
Conv
enience opening
enience opening..................................... 96
Coolant (engine)
Coolant (engine) Levelch eck............................................ 347
No tes..................................................... 410
Cooling
Cooling see Climate control
Cop
Cop yr
yright
ight....................................................... 45
Cor
Cor ner
nering light
ing light............................................. 143
Cr
Cr oss
oss tr
tra1c
a1c (w
(war
arning)
ning)
see Manoeuvring assis tance
Cr
Cr oss
oss Tr
Tra1c
a1c Alert
Alert........................................ 277
Cr
Cr osswind Assist
osswind Assist
Fu nction/no tes...................................... 229
Cr
Cr uise contr
uise contr ol
ol
Ac tivating............................................... 236
Buttons.................................................. 236
Calling up a speed................................. 236
Deactivating........................................... 236
Fu nction................................................ 235
Maximum design speed.......................... 185
Re quirements:....................................... 236
Selecting............................................... 236
Setting a speed...................................... 236 Index
507 507

_
2nd seat row, right Not loc ked...... 443
# 12 V battery See Owner's Man-
ual......................................................... 473
ò Acoustic presence indicator
inoperative............................................ .432
: Active Light System inoperative..... 426
¯ AdBlue system fault Emer. op.:
max. XXX km/h Start not poss. in
XXX km.................................................. 482
¯ AdBlue system fault Emer gency
op. in XXX miles See Owner's Manual.... 481
¯ AdBlue system fault Engine
start not possible................................... 482
¯ AdBlue system fault See Own-
er's Manual............................................ 481
5 Add 1 litre engine oil when next
re fuelling ............................................... 483
é ATTENTION ASSIST inoperati ve..... 456
é ATTENTION ASSIS T:Take a
break!.................................................... 456 :
Automatic driving lights inoper-
ative...................................................... 426
Û Battery overheated Stop, every-
body out! Outdoors if possible ................ 434
û Before starting the engine, turn
th e steering wheel.................................. 441
Á Change key batteries .................... 423
è Charger cable connected .............. 432
J Check brake 0uid le vel.................. 455
ï Check trailer hitch lock (white
display message) .................................... 438
h Check tyre(s) ................................ 476
! Clean the fuel /lter....................... 446
ÿ Coolant Stop vehicle Switch
engine o............................................... 445
! currently una vailable See Own-
er's Manual............................................4 68
÷ currently una vailable See Own-
er's Manual............................................4 695
Engine oil le vel cannot be meas-
ured....................................................... 484
5 Engine oil le velRe duce oil le vel..... 483
5 Engine oil le velSt op vehicle
Switch engine o.................................... 483
5 Engine oil pressure Stop Switch
o. engine.............................................. 484
ä Fault Drive at max. 80 km/h ......... 467
6 Front leT malfunction Consult
wo rkshop (e xample)...............................4 20
& inoperative Battery low................. 429
& inoperative Char geHV battery...... 430
& inoperati veHigh-voltage battery
ch arging inco mplete ............................... 430
& inoperative Refuel vehicle............. .430
& inoperative See Owner's Man........ 429
! inoperative See Owner's Manual.. .469
÷ inoperative See Owner's Manual.. .470
T inoperative See Owner's Manual.. .471
G Inoperative................................... 472 Index
509 509

Online ser
Online ser
vices
vices
Data storag e............................................ 44
Online ser
Online ser vices
vices
see In-Car O1ce
Open-sour
Open-sour ce
cesoTw
soTw are
are.................................... 45
Opening t
Opening t he t
he tailg
ailgat
ate using y
e using y our f
our foot
oot
HANDS-FREE ACCESS............................. 92
Oper
Oper ating
ating 0uids
0uids
Ad Blue ®
................................................ .407
Ad ditives (fuel)....................................... 405
Brake 0uid............................................. 410
Coolant (engine).................................... 410
Engine oil............................................... 408
Fu el (diesel)........................................... 405
Fu el (petrol)........................................... 404
No tes..................................................... 402
windsc reen washer 0uid......................... 411
Oper
Oper ating safe ating safe ty
ty
Declaration of conformity (elect ro-
magnetic compatibility)........................... .29
Declaration of conformity (jack)............... 36
Declaration of conformity (TIREFIT kit)...... 37
Declaration of conformity (wireless
ve hicle components)................................ 29 Informatio
n..................................... ......... 27
Oper
Oper ating syst ating syst em
em
see On-boa rdcomputer
Output
Output see Powe r me ter
Outside mirr
Outside mirr ors
ors
Anti-dazzle mode (automatic)................ .156
Au tomatic mir rorfo lding function........... 157
Fo lding in/out........................................1 55
Operating the memory function.............. 118
Pa rking position..................................... 156
Setting................................................... 155
Ov
Ov er
erhead contr
head contr ol panel
ol panel
Overview.................................................. 16
Owner's Manual
Owner's Manual Vehicle equipment................................... 26
Owner's Manual (digit
Owner's Manual (digit al)
al)................................. 22 P
P
P
P aint (cleaning ins
aint (cleaning ins tr
tructions)
uctions) ........................ .351
P
P aint code
aint code................................................... 401
P
P anor
anor ama sliding sunr
ama sliding sunr oof
oof
see Sliding sunroof P
P
ar
ar k position
k position
Engaging................................................ 191
Selecting automatically..........................1 91
P
P ar
ar king
king
see Electric parking brake
P
P ar
ar king aid
king aid
see Parking Assist PARKTRONIC
P
P ar
ar king Assis
king Assist P t PARK
ARK TR
TRONIC
ONIC
Ac tivating............................................... 271
Ad justing warning tones......................... 272
Deactivating........................................... 271
Fu nction................................................ 268
Side impact pr otection........................... 270
System limitations.................................. 268
P P ar
ar king assist
king assist ance syst
ance systems
ems
see Active Parking Assist
P
P ar
ar king br
king br ake
ake
see Electric parking brake
P
P ar
ar king lights
king lights............................................... 139
P
P ar
ar king op
king op tion
tion
Selecting............................................... 313
P
P ar
ar king position
king position
Outside mir rors...................................... 156 524
524
Index

Ó
Active Brake Assist warning lam p..4 96
J Brake system warning lamp (red)... 495
J Brake system warning lamp (yel-
low)....................................................... 494
ÿ Coolant warning lamp (red)........... 490
ÿ Coolant warning lamp (yellow).......4 92
! Electric parking brake indicator
lamp (red).............................................. 494
# Electrical fault warning lamp
...................................................... 489, 493
; Engine diagnosis warning lamp...... 492
å ESP®
OFF warning lam p................ 498
÷ ESP®
wa rning lamp 0ashes........... 497
÷ ESP®
wa rning lamp lights up......... 498
æ Fuelreser vewarning lamp lights
up.......................................................... 493
Ù Powe r steering warning lamp
(red)...................................................... 489
_ Reduced warning lamp po wer....... 488
6 Restraint system warning lam p...... 486 ü
Seat belt warning lamp 0ashes...... 487
ü Seat belt warning lamp lights up.... 488
Ú System er rorwa rning lam p........... 488
! The electric parking brake (yel-
low) indica tor lam p................................. 494
ï Trailer tow hitch warning lam p....... 490
h Tyre pressure monitoring sys-
te m wa rning lamp 0ashes....................... 499
h Tyre pressure monitoring sys-
te m wa rning lamp lights up.................... 500
L Warning lamp for distance
wa rning function.................................... 496
Overview................................................ 485
PA SSENGER AIR BA G............................... 57
W
W arr arr anty
anty........................................................ 41
W
W ashing b
ashing b y hand (car
y hand (car e)
e)................................ 351
W
W at
at er t
er t ank
ank
see Air-water duct
W
W eat
eat her inf
her inf or
ormation
mation..................................... 313 W
W
eb br ow
eb br owsers
sers
Overview................................................ 326
Wheel c
Wheel c hange
hange
Fi tting a new wheel................................ 392
Lo we ring theve hicle.............................. 393
Preparation............................................ 389
Ra ising theve hicle................................. 390
Re moving a wheel................................. .392
Re moving//tting hub caps..................... 389
Wheel c
Wheel c hange
hange
see Emer gency spa rewheel
Wheel rot
Wheel rotation
ation ............................................. 387
Wheels
Wheels Care...................................................... 353
Chec king............................................... 379
Checking the tyre pressure (tyre pres-
sure monitoring system)......................... 382
Fi tting.................................................... 392
Flat tyre................................................. 359
Inter changing......................................... 387
MOExtended tyres................................. 359
Noise..................................................... 379
No tes on /tting...................................... 384
Re moving............................................... 392 Index
535 535