check engine MERCEDES-BENZ GLC COUPE 2019 Owner's Manual

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
If ESP ®
cann otbe activated, ESP ®
is malfunctioning. #
Have ESP ®
ch ecked immediately at a qualified specialist workshop. #
Obser vethe no tes on deactivating ESP ®
(/ page 201).
J
Brake sy stem warning lamp
(yellow) The
yellow brake sy stem warning lamp is lit while the engine is running.
* &
WARNING Risk of an accident due toa brake sy stem malfunction
If th e brake sy stem is malfunctioning, braking characteristics may be impaired. #
Drive on carefull y. #
Have the brake sy stem checked immediately at a qualified specialist workshop. #
Adjust your speed and continue todrive carefull y,leaving a suitable dis tance totheve hicle in front. #
Ifth e multifunction display sho wsa display message, please obse rve it. #
Consult a qualified specialist workshop.
J Brake sy stem warning lamp
(red) The
red brake sy stem warning lamp is lit while the engine is running.
*Possible causes: R The brake forc e boosting is malfunctioning and the braking characteristics may be af fected.
R The reis insuf ficient brake fluid in the brake fluid reser voir. 596
Display messages and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
! Re d indicator lamp, elect ric
parking brake applied
!
Ye llow elect ric pa rking
brake indicator lamp is mal‐
functioning The
red elect ric pa rking brake indicator lamp flashes or is lit. The yellow indicator lamp is also lit if the electric parking
brake malfunctions.
* #
Obser vethe messages on the multifunction displa y.
6
Re stra int sy stem warning
lamp The
redre stra int sy stem warning lamp is lit while the engine is running.
*The restra int sy stem is faulty (/ page 34). &
WARNING Risk of inju rydue tomalfunctions in there stra int sy stem
If th ere stra int sy stem is malfunctioning, restra int sy stem components may be triggered unintentionally or may
not deploy as intended during an accident. This may af fect the seat belt tensioner or airbag, forex ample. #
Have there stra int sy stem checked and repaired immediately at a qualified specialist workshop. #
Drive on carefully. 598
Display messages and warning/indicator lamps

Engine
Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
; Engine diagnosis warning
lamp The
yellow engine diagno stics warning lamp is lit while the engine is running.
*A malfunction has occu rred in the engine, theex haust sy stem or the fuel sy stem.
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 qualified specialist workshop.
*Ve hicles with a diesel engine: the fuel tank may ha vebeen run dr y. #
Start the engine thre eto four times af terre fuelling.
If th eye llow engine diagnosis warning lamp goes out, emer gency operation mode is cancelled. The vehicle need
not be checked.
#
Elect rical fault warning
lamp The
red elect rical fault warning lamp is lit.
*T here is a fault in the electrics. #
Obser vethe messages on the multifunction displa y.
8
Fu elreser ve wa rning lamp The
yellow fuel reser vewarning lamp is lit while the engine is running.
*T he fuel supply has dropped into there ser verange. #
Refuel. Displ
aymessa ges and warning/indicator lamps 601

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
or #
Exit theve hicle and keep a safe dis tance from it until the engine has cooled down. #
Check the coolant le vel (/ page 467). #
Make sure that the air supply tothera diator is not obstructed. #
Avoiding high loads on the engine, drive tothe nearest qualified specialist workshop. In doing so, ensure that the
coolant temp erature display remains below 120 °C. Ty
res Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
h Ty re pressure monitoring
sy stem warning lamp lights
up The
yellow tyre pressure monitoring sy stem warning lamp (pressure loss/malfunction) is lit.
*The tyre pressure monitoring sy stem has de tected tyre pressure loss in at least one of the tyres. &
WARNING Risk of an accident due toinsuf ficient tyre pressure
Ty res with insuf ficient tyre pressure pose thefo llowing risks:
R The tyres may bur st, especially as the load and vehicle speed increase.
R The tyres may wearexc essively and/or une venly, which may greatly impair tyre traction.
R ‑ The driving characteristics, steering and braking may be greatly impaired. Display messages and
warning/indicator lamps 603

Del
eting .............................................. .407
Del eting favo urites .............................. 408
Downloading (from mobile phone) ...... 405
Importing ............................................ 406
Importing (o verview) .......................... .406
Information .......................................... 405
Making a call ....................................... 406
Na me form at ...................................... .406
Options ................................................ 407
Saving as a favo urite .......................... .407
Selecting options for suggestions ........ 407
St oring ................................................ 406
Con venience closing ................................. 90
Con venience opening ................................ 90
Coolant (engine) Check le vel .......................................... 467
No tes .................................................. 533
Cooling see Climate control
Co pyright ...................................................32
Cornering light ........................................ .141
Cross Traf fic Alert .................................. .253 Crosswind Assist
Function/no tes ................................... 205
Cruise control .......................................... 212
Ac tivating ............................................ .214
Buttons ................................................ 214
Calling up a speed .............................. .214
Deactivating ......................................... 214
Fu nction ............................................... 212
Re quirements ...................................... 214
Selecting .............................................. 214
Setting a speed .................................... 214
St oring a speed .................................... 214
Sy stem limitations ...............................2 12
Cup holder Rear .................................................... .129
Cup holder in the centre console
ins talling/ removing (auto matic
transmission) ....................................... 12 9 D
Damage de tection (pa rked vehicle) .......198
Dash cam Starting/ending a video recording ...... 396 Dashboard
see Co ckpit
Dashboard lighting see Instrument lighting
Dashcam Configuring the settings ......................3 97
Del eting a video recording ................... 396
Selecting a USB device ....................... 395
Data acquisition Vehicle .................................................. 30
Data import/export ................................ 346
Fu nction/no tes ................................... 346
Importing/exporting ........................... 346
Data storage
Electronic control units ........................ .30
Online services ...................................... 31
Ve hicle .................................................. 30
Date Setting the time and date automati‐
cally ..................................................... 341
Deactivating the alarm (A TA).................... 98
Dealership see Qualified specialist workshop Index
61 5

¯
AdBlue sy stem fault Engine
st art not possible ................................ .573
¯ AdBlue sy stem fault See Own‐
er's Manual .......................................... 572
5 Add 1 litre engine oil when next
re fuelling ............................................. 568
Apply brake todeselect Park (P)
position ................................................ 574
App lybrake toselect R ........................ 574
é ATTENTION ASSIST inoperative ... 552
éAT TENTION ASSIS T:Take a
break! .................................................. 553
bAu tomatic driving lights inoper‐
ative .................................................... 589
Au xilia rybattery malfunction ...............575
Beginning eme rgency stop .................. 556
Blind Spot Assist cur rently una vaila‐
ble See Owner's Manual ...................... 557
Blind Spot Assist inope rative ............... 557 Blind Spot Assi
stnot available when
to wing a trailer See Owner's Manual ...5 58
Cannot start engine See Owner's
Manual ................................................ 566
ÁChan gekey bat teries .................. 580
JCheck brake fluid le vel................ 546
Check brake pads See Owner's Man‐
ual ...................................................... .547
5 Check eng. oil le v.when next
re fuelling ............................................. 568
ï Checktrailer hitch lo ck(white
display message) .................................5 82
hChe cktyre(s) ............................... 577
! Clean the fuel filter ...................... 567
?Coolant Stop vehicle Switch
engine off ............................................ 563
Cruise contro l and Limiter inope ra‐
tive ....................................................... 561
Cruise control inope rative .................... 561
Cruise control off ................................. 561 !cu
rrently unavailable See Own‐
er's Manual ........................................ .539
÷cur rently una vailable See Own‐
er's Manual ........................................ .540
5Engine oil le vel cannot be
measured ............................................ 570
5 Engine oil le velRe duce oil le vel...5 69
5Engine oil le velSt op vehicle
Switch engine off ................................ 569
5Engine oil pressure Stop Switch
off engine ............................................ 570
ä Fault Drive at max. 80 km/h .......555
6Fr ont left malfunction Consult
wo rkshop (e xample)............................ 548
Fr ont-passenger airbag disabled See
Owner's Manual ..................................5 49
Fr ont-passenger airbag enabled See
Owner's Manual ..................................5 49
Hazard warning lamps malfunction‐
ing ...................................................... .591 61 8
Index

Un
locking a door .................................. .82
Un locking theta ilgate .......................... .88
Emer gency operation mode
St arting theve hicle ............................. 16 8
Emer gency spare wheel .........................5 20
No tes .................................................. 520
Re moving ............................................. 521
ENERGIZI NGCoach
Calling up ............................................ 354
Fu nction .............................................. 353
ENE RGIZING COMFORT ...........................349
Overview of programmes .................... 350
St arting the programme ......................3 52
ENERGIZI NGseat kinetics
Setting .................................................3 49
ENERGIZI NGseat kinetics
see ENERG IZINGCOMFORT
Engine ECO start/ stop function ......................1 72
Engine number .................................... 524
St arting (Digital Vehicle Keyst icke r) .... 167
St arting (eme rgency operation
mode) .................................................. 16 8St
arting (mobile phone) ...................... .167
St arting (Remo teOnline) ..................... 16 9
St arting (s tart/s top button) .................1 66
St arting assis tance .............................. 491
Switching off (s tart/s top button) ........ 19 0
Engine bonnet Function (active bonnet) ...................... 461
Opening/closing ................................. 462
Engine data Displaying ............................................ 17 9
Engine electronics Notes .................................................. 522
Engine number ........................................5 24
Engine oil ................................................ .465
Ad ditives .............................................. 531
Capacity .............................................. 532
Checking the oil le vel using the oil
dipstick ............................................... 464
Checking the oil le vel using the on-
board computer ................................... 465
MB-Fr eigabe or MB-Appr oval .............. .532
Quality ................................................. 532
To pping up ...........................................4 65Entering
characters ................................. 331
Fu nction/no tes ................................... 331
On theto uchpad ................................ .332
On theto uchsc reen (media display) ....3 36
Setting theke yboard .......................... .340
EQ Boost Operating saf ety .................................... 21
ERA-GLONASS test mode
St arting/ending .................................. 428
ESC (Elect ronic Stability Control)
see ESP ®
(Electronic Stability Prog ram)
ESP ®
Crosswind Assist ................................. 205
Tr ailer stabilisation .............................. 206
ESP ®
(Elect ronic Stability Prog ram) ...... 201
Ac tivating/deactivating ...................... .205
Fu nction/no tes ................................... 201
EU general operating permit number ....524
Exterior lighting Care .................................................... .475
Exterior lighting see Lights Index
623