2022 MERCEDES-BENZ GLC COUPE fuel pressure

&
W
WARNI NG
ARNI NGRisk of accident due torepea-
te d pressure drop in the tyres
The wheels, valves or tyres could be damaged.
To o low a tyre pressure can lead tothe tyres
bursting. #
Examine the tyres forfo re ign objects. #
Check whe ther the tyre has a puncture
or theva lve has a leak. #
Ifyo u are unable torectify the damage,
contact a quali/ed specialist workshop. Information on
there commended tyre pressure
fo rth eve hicle's factor y-/tted tyres can be found
on the tyre pressure table on the inside of the fuel
/ller 0ap (/ page 366).
Use a suitable pressure gauge tocheck the tyre
pressure. The outer appearance of a tyre does not
permit any reliable conclusion about the tyre pres-
sure.
Only cor rect tyre pressures when the tyres are
cold. Conditions for cold tyres:
R The vehicle has been par ked with the tyres out
of direct sunlight for at least thre e hours. R
The vehicle has tr avelled less than 1.6 km.
The vehicle's tyres heat up when driving. As the
te mp erature of the tyres increases, so too does
th e tyre pressure.
V
V ehicles wit ehicles wit h a tyr
h a tyre pr
e pressur
essur e monit
e monit or
oring syst
ing syst em:
em:
yo u can also check the tyre pressure using the
on-board computer (/ page 367).
Not
Not es on tr
es on tr ailer oper
ailer oper ation
ation
Alw ays in0ate there ar axle tyres tothere com-
mended tyre pressures on the tyre pressure table
fo r increased load. T
T
yr
yr e pr
e pr essur
essur e t
e table
able The tyre pressure
table is on the inside of the fuel
/ller 0ap. The tyre pressure
table sho ws there commended
tyre pressure for all tyres appr ovedfo rth is vehi-
cle. The recommended tyre pressures apply for
cold tyres under various operating conditions, i.e.
loading and/or speed of theve hicle.
If one or more tyre sizes precede a tyre pressure,
th efo llowing tyre pressure information is only
va lid forth ose tyre sizes and their respecti veload
condition. 366
366
Wheels and tyres

If
th e preceding tyre sizes are complemented by
th e+ symbol, the tyre pressure information
fo llowing sho wsalternative tyre pressures. Fuel
consum ption may then increase slightl y.
The load conditions "pa rtially laden" and "fully
laden" are de/ned in theta ble for di.erent num-
bers of passengers and amounts of luggage. The
actual number of seats may di.er from this. T
T
yr
yr e pr
e pr essur
essur e monit
e monit or
oring syst
ing syst em
em F
F
unction of t
unction of t he tyr
he tyre pr
e pressur
essur e monit
e monit or
oring syst
ing syst em
em
The system checks the tyre pressure and the tyre
te mp erature of the tyres /t tedtotheve hicle by
means of a tyre pressure sensor.
The tyre pressure and the tyre temp erature
appear in the on-board computer (/ page 367).
If th ere is a substantial pressure loss or if the tyre
te mp erature is excessive, you will be warned with
display messages (/ page 460) ortheh
wa rning lamp in the inst rument cluster
(/ page 485).
The tyre pressure monitoring system is only an
aid. It is the driver's responsibility toset the tyre pressure
tothere commended cold tyre pressure
suitable forth e operating situation.
In most cases, the tyre pressure monitoring sys-
te m will automatically update the new refere nce
va lues aTer you ha vechanged the tyre pressure.
Yo u can, ho wever, also update there fere nce val-
ues byrestarting the tyre pressure monitoring
system manually (/ page 368).
Syst
Syst em limits
em limits
The system may be impaired or may not function
particular lyin thefo llowing situations:
R incor rect refere nce values were ta ught in
R sudden pressure loss caused byafo re ign
object penetrating the tyre, forex ample
R there is a malfunction caused byano ther radio
signal source
Chec
Chec king t
king t he tyr
he tyr e pr
e pressur
essur e wit
e with t
h the tyr
he tyr e pr
e pressure
essure
monit
monit or
oring syst
ing syst em
em
R
R eq
equir uir ements:
ements:
R The vehicle is switched on. On-board computer:
4 Service 5
Tyres
One of thefo llowing displa ysappears:
R Current tyre pressure and tyre temp erature of
th e individual wheels: R
Tyre pressures will be displayed after a few
minutes of driving
R Tyre pressure monitor active: thete ach-in
process of the system is not yetcomple te. The
tyre pressures are already being monitored. #
Compare the tyre pressure with there com-
mended tyre pressure forth e cur rent ope rat-
ing condition (/ page 366).Additionall y, Wheels and tyres
367 367

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
6
Please wait Depressurising
tank *V
Vehicles wit ehicles wit h pe
h petr
trol engines:
ol engines: the pressure in the fuel tank is reduced before the fuel /ller 0ap is opened. The pressure
re duction can take up to15 minutes.
6 Tank is depressurised
Ready for refuelling *V
Vehicles wit ehicles wit h pe
h petr
trol engines:
ol engines: the pressure in the fuel tank is released and the fuel /ller 0ap opens.
6
Tank ventilation Malfunc-
tion Consult workshop *V
Vehicles wit
ehicles wit h pe
h petr
trol engines:
ol engines: There is a malfunction in the fuel system. #
Consult a quali/ed specialist workshop. 422
422
Displ
aymessages and warning/indicator lamps

Indicat
Indicat
or and w
or and w ar
arning lam
ning lam ps:
ps:
6 Restraint system (/ page 473)
ü Seat belt (/ page 473)
_ Reduced po wer (/ page 474)
Ú System error (/ page 474)
# Electricalfault (/ page 474)
ï Trailer hitch (/ page 475)
Ù Powe r steering (/ page 475)
ÿ Coolanttemp erature (/ page 477)
; Engine diagnostics (/ page 477)
% V
V ehicles wit
ehicles wit h a diesel engine:
h a diesel engine: preglow
# Electricalfault (/ page 477)
8 Reser vefuel wi thfuel /ller 0ap loca-
tion indicator (/ page 477)
! Electric parking brake (yellow)
(/page 480)
! Electric parking brake (red)
(/ page 480)
J Brakes (yellow) (/ page 480)
J Brakes (red) (/ page 480) L
Distancewarning (/ page 482)
Ó Active Brake Assist (/ page 482)
ê Active Brake Assist (/ page 482)
! ABS (/page 482)
÷ ESP®
(/ page 482)
å ESP®
OFF (/ page 482)
h Tyre pressure monitoring system
(/ page 485)
T Standing lights (/ page 134)
L Low beam (/ page 134)
K High beam (/ page 136)
#! Turn signal lights (/ page 136)
R Rear fog light (/ page 134)
Symbols on t
Symbols on t he centr he central display:
al displ ay:
É DriveAway Assist (/ page 263)
L CrossTra1c Ale rt (/ page 264) 472
472
Display messages and
warning/indicator lamps

Û
48 V battery See Owner's Man-
ual......................................................... 459
ò Acoustic presence indicator
inoperative............................................ .417
: Active Light System inoperative..... 410
¯ AdBlue system fault Emer. op.:
max. XXX mphSt art not poss. in XXX
miles.................................................... .467
¯ AdBlue system fault Emer gency
op. in XXX km See Owner's Manual........ 467
¯ AdBlue system fault Engine
start not possible................................... 468
¯ AdBlue system fault See Own-
er's Manual............................................ 467
5 Add 1 litre engine oil when next
re fuelling ............................................... 469
é ATTENTION ASSIST inoperati ve..... 439
é ATTENTION ASSIS T:Take a
break!.................................................... 439 :
Automatic driving lights inoper-
ative...................................................... 410
Û Battery overheated Stop, every-
body out! Outdoors if possible ........ 419, 459
Á Change key batteries .................... 407
è Charger cable connected .............. 417
J Check brake 0uid le vel.................. 438
5 Check engine oil le vel when
next refuelling ........................................ 468
ï Check trailer hitch lo ck(white
display message) .................................... 424
h Check tyre(s) ................................ 461
! Clean the fuel /lter....................... 431
Á Compressor is cooling .................. 450
ÿ Coolant Stop vehicle Switch
engine o............................................... 430
! currently una vailable See Own-
er's Manual............................................4 51
÷ currently una vailable See Own-
er's Manual............................................4 525
Engine oil le vel cannot be meas-
ured....................................................... 471
5 Engine oil le velRe duce oil le vel..... 469
5 Engine oil le velSt op vehicle
Switch engine o.................................... 469
5 Engine oil pressure Stop Switch
o. engine.............................................. 470
ä Fault Drive at max. 80 km/h ......... 448
6 Front leT malfunction Consult
wo rkshop (e xample)...............................4 04
& inoperative Battery low................. 414
& inoperative Char geHV battery...... 415
& inoperati veHigh-voltage battery
ch arging inco mplete ............................... 415
& inoperative Refuel vehicle............. .415
& inoperative See Owner's Man........ 414
! inoperative See Owner's Manual.. .452
÷ inoperative See Owner's Manual.. .453
T inoperative See Owner's Manual.. .454
G Inoperative................................... 456 494 494
Index

:
Intelligent Light System inopera-
tive........................................................ 411
Á Key being initialised Please wait.... 409
Á Key not de tected (red display
message).............................................. .408
Á Key not de tected (white display
message).............................................. .408
: LeT dipped beam (e xample).......... 409
6 LeT windowbag malfunction
Consult workshop (e xample).................. 405
 Lowe ring....................................... 449
: Malfunction See Owner's Man-
ual ......................................................... 410
Û Malfunction Visit workshop ........... 420
d Malfunction.................................. 421
Û Malfunction.................................. 420
ð Maximum speed exceeded ............ 442
Ø ................................................... .466
ç O.................................................4 41
ë O.................................................4 38ï
Operation only possible in
transmission position P .......................... 423
! Parking brake See Owner's
Manual..................................................4 34
d Performance se verely limited........ 421
Á Please reduce speed .................... .449
Ý Please wait 48 V battery charg-
ing......................................................... 459
6 Please wait Depressurising tank .... 422
& Pre-entry clima tecont rol (via
ke y) available again aTer engine start..... 416
& Pre-ent ryclimate cont rol (via
ke y) inoperati veHV-battery low .............. 416
_ Rear leT seat backrest not
loc ked (Example) .................................... 428
h Rectify tyre pressure ..................... 462
Ø Re/ll AdBlue See Owner ’sMan-
ual ......................................................... 465
! Release parking brake ...................437
¸ Replace air cleaner ....................... 431 Á
Replace key.................................. 407
8 Reser vefuel le vel.......................... 431
6 Restraint sys. malfunction Con-
sult workshop ....................................... .403
# See Owner's Manual..................... 457
Ù Steering malfunction Increased
ph ysical e.ort See Owner's Manual.......4 26
Ù Steering malfunction Stop
immediately See Owner's Manual ........... 426
d Stop Switch engine o.................. .421
# Stop vehicle Lea veengine run-
ning ....................................................... 458
# Stop vehicle See Owner's Man-
ual......................................................... 458
Á Stop vehicle Vehicle too low .......... 448
ç suspended .................................... 440
: Switch o. lights............................ 411
: Switch on headlamps .................... 411
6 Tank is dep ressurised Ready for
re fuelling ............................................... 422 Ind
ex
495 495

Identi/cation plate................................
.385
Seat.......................................................3 85
V
V ision
ision
Demisting windo ws................................ 152 W
W
W
W ar
ar ning syst
ning syst em
em,ATA.................................... 100
W W ar ar ning tr
ning tr iangle
iangle........................................... 343
W
W ar
ar ning/indicat
ning/indicat or lamp
or lamp
! ABSwarning lamp......................... 482
J Brake system warning lamp (red)... 481
J Brake system warning lamp (yel-
low)....................................................... 480
ÿ Coolant warning lamp................... 477
! Electric parking brake indicator
lamp (red).............................................. 480
# Electrical fault warning lamp
...................................................... 475, 479
; Engine diagnosis warning lamp...... 478
å ESP®
OFF warning lam p................ 484
÷ ESP®
wa rning lamp 0ashes........... 483 ÷
ESP®
wa rning lamp lights up......... 483
8 Fuelreser vewarning lamp lights
up.......................................................... 479
Ù Powe r steering warning lamp
(red)...................................................... 475
_ Reduced warning lamp po wer....... 474
6 Restraint system warning lam p...... 473
ü Seat belt warning lamp 0ashes...... 474
ü Seat belt warning lamp lights up.... 474
Ú System er rorwa rning lam p........... 475
! The electric parking brake (yel-
low) indica tor lam p................................. 480
ï Trailer tow hitch warning lam p....... 476
h Tyre pressure monitoring sys-
te m wa rning lamp 0ashes....................... 485
h Tyre pressure monitoring sys-
te m wa rning lamp lights up.................... 485
L Warning lamp for distance
wa rning function.................................... 482 W
W ar ar ning/indicat
ning/indicat or lam
or lamps
ps
Instrument displa y................................. 471
PA SSENGER AIR BA G............................... 56
W
W asher
asher 0uid
0uid
Wi ndsc reen washer 0uid........................ 395
W
W ashing b
ashing b y hand
y hand.......................................... 337
W
W at
at er t
er t ank
ank ................................................... 336
W
W eat
eat her inf
her inf or
ormation
mation..................................... 301
W
W eb br ow
eb br owsers
sers
Overview................................................ 314
W
W edge
edge........................................................ .373
W
W eight inf
eight inf or
ormation
mation....................................... 385
Wheel c
Wheel c hange
hange
Fi tting a new wheel................................ 377
Lo we ring theve hicle.............................. 378
Preparation............................................ 374
Ra ising theve hicle................................. 375
Re moving a wheel................................. .377
Re moving//tting hub caps..................... 374
Wheel rot
Wheel rotation ation ............................................. 372
Wheels
Wheels Breakdown............................................. 344
Care..................................................... .339 518
518
Index