2021 MERCEDES-BENZ GLA SUV check engine

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Switch o. theve hicle. #
Add 1 l of engine oil (/ page 345). #
Check the engine oil le vel.
No tes on engine oil (/ page 408).
5
Engine oil pressure Stop
Switch off engine *T
he oil pressure is too lo w.
* N
NO
OTE
TE Engine damage caused bydriving with insu1cient oil pressure #
Avoid driving with insu1cient oil pressure. #
Stop theve hicle immediately in accordance with the tra1c conditions. Do not continue driving. #
Switch o. theve hicle. #
Consult a quali/ed specialist workshop.
5
Engine oil level cannot be
measured *T
he elect rical connection tothe oil le vel sensor has been inter rupted or the oil le vel sensor is faulty. #
Consult a quali/ed speciali stwo rkshop. 484 484
Displ
aymessages and warning/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

_
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

Apply brake
toselect D or R ...................448
Apply brake toselect R .......................... 448
Au xiliary battery malfunction (red dis-
play message) ....................................... .451
Au xiliary battery malfunction (white
displ aymessage) .................................... 451
Beginning emer gency stop..................... 462
Blind Spot Assist cur rently una vailable
See Owner's Manual.............................. 463
Blind Spot Assist inoperative.................. 463
Blind Spot Assist not available when
to wing a trailer See Owner's Manual ...... 463
Cann otstart engine See Owner's
Manual................................................. .444
Charging fault Please change charging
me thod See Owner's Manual .................433
Charging me thod cur rently una vaila-
ble Please try again or change charg-
ing me thod............................................ 433 Check brake pads See Owner's Man-
ual........................................................
.455
Check tyre pressures then restart Run
Flat Indicator......................................... 479
Cruise control and Limiter inoperative.... 457
Cruise control inoperative...................... 457
Cruise control o....................................4 57
Device de tected at diagnostics con-
nection See Owner's Manual................. .473
Drive system Malfunction Stop Switch
engine o............................................... 447
Drive system Malfunction Visit work-
shop ...................................................... 447
Fr ont-passenger airbag disabled See
Owner's Manual .................................... .421
Fr ont-passenger airbag enabled See
Owner's Manual .................................... .422
Hazard warning lamps malfunctioning .... 429
Head-up display cur rently una vailable
See Owner's Manual.............................. 439 Head-up display inoperative
...................440
Limiter inoperative................................. 457
Limiter passive....................................... 457
N permanently active Risk of vehicle
ro lling....................................................4 48
Not possible tounlock charging cable
See Owner's Manual.............................. 432
Only elect ric drive available Power
limited................................................... 433
Only select Park (P) when vehicle is
stationary.............................................. 447
Pa rking Assist and PARKTRONIC inop-
erative See Owner's Manual................... 467
Pa rking lock inoperative Apply the
parking brake ........................................ .450
Place theke y in the mar ked space
See Owner's Manual.............................. 425
PRE-SAFE inoperative See Owner's
Manual.................................................. 423
Re duce speed........................................ 478 512 512
Index

Re
duced drive system per form ance
See Owner's Manual.............................. 434
Re versing not poss. Consult workshop ... 449
Risk of vehicle rolling away App ly
parking brake See Owner's Manual ........ 450
Risk of vehicle rolling Driver door
open and transmission not in P .............. 448
Ru n Flat Indica tor inoperative................. 479
Speed limit (winter tyres) XXX km/h .......460
Speed Limit Assist cur rently una vaila-
ble See Owner's Manual........................ 459
Speed Limit Assist inoperative................ 459
Te aching in transmission comple te......... 450
Te aching in transmission Operate
selector le ver Brake for XX seconds
Risk of vehicle rolling ............................. 450
To shiT out of P or N,depress brake
and start engine.................................... .447 To
switch o. the engine, press the
St art/ Stop button for at least 3 sec-
onds or 3 times...................................... 444
Tr a1c Sign Assist cur rently una vaila-
ble See Owner's Manual........................ 462
Tr a1c Sign Assist inoperative................. 462
Tr ansmission Malfunction ....................... 449
Tr ansmission Malfunction Stop............... 449
Tr ansmission Malfunction Visit work-
shop ...................................................... 451
Ty re press. monitor cur rently una vaila-
ble......................................................... 475
Ty re press. monitor inoperative .............. 475
Ty re press. monitor inoperative No
wheel sensors ........................................ 476
Ty re pressure Check tyres ...................... 478
Ty re(s) ove rheated .................................. 478
Ve hicle not cur rently being charged
Charging station fault............................. 433
Wi per malfunctioning .............................443 Wi
thout changing gear, consult work-
shop ............................................. .435, 448
Wi thout starting engine again, consult
wo rkshop ............................................... 435
Dist
Dist ance contr
ance contr ol
ol
see Active Distance Assist DISTRONIC
DIS DIS TR
TR ONIC ONIC
see Active Distance Assist DISTRONIC
Door
Door Additional door loc k................................. 84
Child saf ety lock (rear door )..................... 78
Locking/unlocking (emer gency key)........ .88
Opening (from inside).............................. .85
Unlo cking (from inside)............................ 85
Door contr
Door contr ol panel
ol panel......................................... 18
Do
Do wnhill dr
wnhill dr iving assist
iving assist ance
ance
see DSR
Dra
Dra wbar
wbar
see Tow- bar system
Dr
Dr iv
ive Awa
e Away Assi st
y Assi st........................................ .277
Dr
Dr iv
ive position
e position
Engaging................................................ 191 Index
513
513

Engine oil
Engine oil
Additives................................................ 408
Capacity................................................ 409
Checking the oil le vel using the on-
board computer.....................................3 45
MB-F reigabe or MB-Appr oval................. .409
Quality................................................... 409
To pping up............................................ .345
ERA
ERA -GL -GLON
ONASS tASS t es
est modet mode
St arting/ending.................................... .333
Err
Err or message
or message
see Display message
ESC (Electr
ESC (Electr onicSt
onic Stability Contr
ability Contr ol)
ol)
see ESP ®
(Elect ronic Stability Prog ram)
ESP
ESP ®
®
Crosswind Assis t.................................... 229
Tr ailer stabilisatio n................................. 230
ESP
ESP ®
®
(Electr
(Electronic St
onic Stability Pr
ability Pr ogr
ogram)
am)
Ac tivating/deactivating.......................... 230
Fu nction/no tes...................................... 228
EU type approv
EU type appr oval number
al number ............................. 401
Ext
Ext er
erior lighting
ior lighting
Car e...................................................... 353 Ext
Ext
er
erior lighting
ior lighting
see Lights F
F
F
F atigue det
atigue det ection
ection
see ATTENTION ASSIST
F
F ir
ir e e
e e xtinguisher
xtinguisher.......................................... 358
F
F irs
irst-aid kit t-aid kit (soT
(soTsided)
sided)................................. 358
Flat to
Flat towing
wing
see Tow- bar system
Flat tyre
Flat tyre MOExtended tyres................................. 359
No tes..................................................... 359
TIREFIT kit.............................................. 361
Wheel chang e........................................ 389
Floor mats
Floor mats................................................... 137
F F oil cov
oil cov er
ering
ing
Ra dar and ultrasonic sensor s................. 226
Fr
Fr ee
ee soTw
soTw are
are................................................. 45
Fr
Fr eq
eq uencies
uencies
Mobile phone......................................... 399
Tw o-w ayradio........................................ 399
Fr
Fr ont airbag (dr
ont airbag (dr iv
iver
er , fr
, fr ont passeng
ont passeng er)
er).............. 52 F
F
r
ront passeng
ont passeng er seat
er seat
see Load compartment
see Seat
Fr Fr ont wheel ar ch
ont wheel ar ch
Fi tting/removing the co ver..................... 149
Fr
Fr ont wheel arc
ont wheel arc h cov
h cover
er
Fi tting/removing.................................... 149
F
F uel
uel
Additives................................................ 405
Diesel.................................................... 405
E10........................................................ 404
Fu elreser ve........................................... 406
Low outside temp eratures...................... 405
Pe trol..................................................... 404
Quality (diesel )....................................... 405
Quality (petrol)....................................... 404
Re fuellin g.............................................. .194
Sulphur content..................................... 404
Ta nk content.......................................... 406
F F uel consump
uel consump tion indicat
tion indicator
or
Calling up.............................................. 189
F
F unction seat
unction seat
see Door cont rol panel 516
516
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