2021 MERCEDES-BENZ GLC COUPE stop start

Display messages
Possible causes/consequences and M MSolutions
T
!
÷ inoperative See Owner's
Manual *
EBD, ABS and ESP ®
are malfunctioning.
Other driving sy stems and driving saf ety sy stems (e.g. BAS) may also be malfunctioning. &
WARNING Risk of skidding if EBD, ABS and ESP ®
are malfunctioning
The wheels may block duri ng braking and ESP®
does not pe rform any vehicle stabilization.
The steerability and braking characteristics are heavily impaired and the braking dis tance may increase. In addi‐
tion, other driving saf ety sy stems are switched off. #
Drive on carefull y. #
Have the brake sy stem checked immediately at a qualified specialist workshop. Active Brake Assist Func-
tions currently limited See
Owner's Manual
*
Ve hicles with the Driving Assistance Package: Active Brake Assi stwith cross-traf fic function, Evasi veSteering
Assist or PRE‑SAFE ®
PLUS are temp orarily una vailable or only partially available.
Ve hicles without the Driving Assistance Package: Active Brake Assi stistemp orarily una vailable. #
Drive on.
As soon as the ambient conditions are within the sy stem limits, the sy stem will become available again. #
Ifth e display message does not disappear, stop theve hicle in accordance with the tra ffic conditions and restart
th e engine. 41 0
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and M MSolutions
Active Brake Assist Func-
tions limited See Owner's
Manual *F
orvehicles with the Driving Assis tance Package, thefo llowing functions may be temp orarily una vailable or limited:
R Active Brake Assi stwith cross-traf fic function
R Evasi veSteering Assist
R PRE‑SAFE ®
PLUS
Ve hicles without the Driving Assistance Package: Active Brake Assi stistemp orarily una vailable or only partially
av ailable. #
Consult a qualified specialist workshop.
Radar sensors dirty See
Owner's Manual *T
heradar sensor sy stem is malfunctioning. Possible causes:
R Dirt on the sensors
R Heavy rain or snow
R Extended country driving wi thout other traf fic, e.g. in the desert
Driving sy stems and driving saf ety sy stems may be malfunctioning or temp orarily una vailable.
Once the cause of the problem is no longer present, the driving sy stems and driving saf ety sy stems will be available
again.
If th e display message does not disappear: #
Stop theve hicle in accordance with the tra ffic conditions. #
Clean all sensors (/ page 309). #
Restart the engine. Display messages and
warning/indicator lamps 411

Display messages
Possible causes/consequences and M MSolutions
# Stop vehicle Leave engine
running *T
he12 V battery charge leve l is too lo w. #
Stop theve hicle immediately in accordance with the traf fic conditions. Do not continue driving. #
Lea vethe engine running. #
Ifth e display message disappears: drive on. #
Ifth e display message does not disappear: consult a qualified specialist workshop.
Û 48 V battery See Owner's
Manual *T
he 48 V on-board electrical sy stem has function restrictions. Comfort functions may be restricted. #
Consult a qualified specialist workshop immediatel y.
Ý
Please wait 48 V battery
charging *T
he 48 V battery is dischar ged. You ha veswitched on the ignition while the12 V battery was being charge d with a
suitable charge r or while ano ther vehicle was pr oviding starting assis tance.
The discha rged 48 V battery is charge d automatically via thevo ltage con verter. Af ter a few minutes, theMotor can
be started again display message will be shown on the multifunction displa y. #
Start theve hicle. #
Drive theve hicle for a while tocharge the12 V battery and the 48 V battery af ter disconnecting thech arger
from theve hicle.
If th eMotor can be started again display message does not appear af ter a few minutes: 414
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and M MSolutions
R The driving characteristics as well as thesteering and braking may be greatly impaired.
Yo u could then lose control of theve hicle. #
Obser vethere commended tyre pressures. #
Adjust the tyre pressure if necessar y. #
Stop theve hicle in accordance with the tra ffic conditions. #
Check the tyre pressure (/ page 336) andthe tyres.
h
Rectify tyre pressure *T
he tyre pressure is too low in at least one of the tyres, or the dif fere nce in tyre pressure between the individual
wheels is too great. #
Check the tyre pressure and add air, if necessar y. #
When the tyre pressure is cor rect, restart the tyre pressure monitoring sy stem (/ page 339).
h Warning tyre defect *T
he tyre pressure in one or more tyres has dropped suddenly. The wheel position will be displa yed. &
WARNING Risk of an accident from driving wi thaflat tyre
R The tyres can overheat and be damaged.
R The driving characteristics as well as thesteering and braking characteristics may be great lyimpaired.
Yo u could then lose control of theve hicle. #
Do not drive with a flat tyre. Display messages and
warning/indicator lamps 417

Ty
re pressure loss warning sy stem Display messages
Possible causes/consequences and M MSolutions
Tyre pressure Check tyres *T
he tyre pressure loss warning sy stem has de tected a significant loss of pressure. &
WARNING Risk of an accident due toinsuf ficient tyre pressure
R The tyres can burs t.
R The tyres can wearexc essively and/or une venly.
R The driving characteristics as well as thesteering and braking may be greatly impaired.
Yo u could then lose control of theve hicle. #
Obser vethere commended tyre pressures. #
Adjust the tyre pressure if necessar y. #
Stop theve hicle in accordance with the tra ffic conditions. #
Check the tyre pressure (/ page 336) andthe tyres. #
When the tyre pressure is cor rect, restart the tyre pressure loss warning sy stem (/ page 339).
Check tyre pressures then
restart Run Flat Indicator *T
he tyre pressure loss warning sy stem generated a displ aymessa geand has not been restar ted since. #
When the tyre pressure is cor rect, restart the tyre pressure loss warning sy stem (/ page 339).
Run Flat Indicator inopera-
tive *T
he tyre pressure loss warning sy stem is malfunctioning. #
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 419

Wa
rning/indicator lamp
Possible causes/consequences and M MSolutions #
Stop theve hicle immediately in accordance with the traf fic conditions and switch off the engine. Do not continue
driving. #
Notethe messages on the multifunction displa y.
If th e coolant temp erature display is at the lo wer end of thete mp erature scale: #
Consult a qualified specialist workshop.
If th e coolant temp erature display is at the upper end of thete mp erature scale: #
Exit theve hicle and keep a safe dis tance from it until the engine has cooled down. #
Check the coolant le vel (/ page 304). #
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.
; Engine diagnosis warning
lamp *T
he 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. Display messages and
warning/indicator lamps 431

Au
tomatic engine start (ECO start/
sto p function)............................................ 16 0
Au tomatic engine stop (ECO start/
sto p function)............................................ 16 0
Au tomatic front passen ger front air‐
bag deacti vation sy stem
see Automatic front passenger front
airbag shutoff
Au tomatic front passen ger front air‐
bag shu toff
Fu nction of the automatic front
passenger front airbag deactivation
sy stem..................................................... 47
PA SSENGER AIR BAG indicator lamp....... 49
Au tomatic mir rorfo lding function
Ac tivating/deactivating......................... 141
Au tomatic transmission
DIRECT SELECT le ver............................. 16 6
Drive program display............................ 16 5
Drive programs...................................... 16 4
DY NA MIC SELECT switch...................... 16 4
Engaging drive position........................ .168
Engaging neutral................................... .167
Engaging pa rkposition.......................... 16 8Engaging
reve rsege ar........................... 167
Kickdown............................................... 17 0
Manual gear changing.......................... .168
St eering wheel gearshift paddles.......... 16 8
Tr ansmission position displa y................ 16 6
Tr ansmission position s..........................16 6
Axle load Perm issible............................................ 355
Tr ailer operation.................................... 369 B
Bag hook .................................................... .115
Ball neck Extending/r etra cting............................ .240
Extending/r etra cting (MBUX multi‐
media sy stem)....................................... 24 2
BA S (Brake Assist Sy stem)....................... 186
Battery Remo tecontrol (s tationary heater)........ 14 9
Battery see Battery (vehicle)
Battery (k ey)
Re placing.................................................75 Battery (vehicle)
Charging................................................ 325
Charging (Remo teOnline)...................... 154
No tes..................................................... 321
No tes (s tarting assis tance and
ch arging)............................................... 323
Re placing.............................................. 326
St arting assis tance................................ 325
Belt see Seat belt
Bic ycle rack
Load capacity........................................ 368
Tr ailer operation.................................... 24 5
Blind Spot Assi st
Ac tivating/deactivating......................... 215
Fu nction................................................. 213
Sy stem limitations................................. 213
Blo wer
see Climate control
BlueTEC see AdBlue ®
Boot lid see Tailgate Index
443

6
Restra int sys. malfunction Con‐
sult workshop........................................ 371
# See Owner's Manual..................... 413
Ù Steering malfunction Incre ased
ph ysical ef fort See Owner's Manual...... 383
Ù Steering malfunction Stop
immediately See Owner's Manual ......... 383
# Stop vehicle Lea veengine run‐
ning ........................................................ 414
# Stop vehicle See Owner's Man‐
ual..........................................................4 13
Á Stop vehicle Vehicle too low......... 404
ç suspended...................................3 98
: Switch off lights ........................... 377
: Switch on headlamps................... 377
Ø Top up AdBlue Emergency op.
in XXX miles See Owner's Manual......... 420
+ Top up coolant See Owner ’s
Manual.................................................. 386
¥ Top up washer fluid ...................... 385 ï
Trailer coupling in motion .............381
! Turn on the ignition torelease
th e parking brake..................................3 95
d Vehicle is operational Switch
off ignition before exiting....................... 381
Á Vehicle rising Please wait............ .406
Á Vehicle rising................................4 05
h Warning tyre defect..................... .417
h Wheel sensor(s) missing ...............416
Ø XX,X l Top up AdBlue Switch on
ignition, wait 60 sec. or eng. start
not poss................................................ .421
Ac tive Blind Spot Assi stcur rently
una vailable See Owner's Manual ...........402
Ac tive Blind Spot Assi stinope rative ...... 402
Ac tive Blind Spot Assi stnot available
when towing a trailer See Owner's
Manual .................................................. 403
Ac tive bonnet malfunction See Own‐
er's Manual........................................... 384 Ac
tive Brake Assi stFunctions cur‐
re ntly limited See Owner's Manual ........41 0
Ac tive Brake Assi stFunctions limited
See Owner's Manual.............................. 411
Ac tive Dis tance Assi stavailable again ...3 99
Ac tive Dis tance Assi stcur rently
una vailable See Owner's Manual ...........398
Ac tive Dis tance Assi stinope rative ........ 398
Ac tive Lane Keeping Assist Camera
view restricted See Owner's Manual..... 403
Ac tive Lane Keeping Assist cur rently
una vailable See Owner's Manual ...........403
Ac tive Lane Keeping Assist inopera‐
tive........................................................ 403
Ac tive Steering Assist cur rently
una vailable due tomultiple emer‐
ge ncy stops...........................................4 00
Ac tive Steering Assist cur rently
una vailable See Owner's Manual ...........399
Ac tive Steering Assist inoperative ......... 399 Index
449