2021 MERCEDES-BENZ GLC COUPE radio

Display messages
Possible causes/consequences and M MSolutions
Á Key not detected (red dis‐
play message) *T
hekey cannot be de tected and may no longer be in theve hicle.
The key is no lon ger in theve hicle and you swit choff the engine:
R You can no lon gerst art the engine.
R You cannot centrally lock theve hicle. #
Ensure that theke y is in theve hicle.
If th eke y de tection function has a malfunction due toast ro ng radio signal source: #
Stop theve hicle immediately in accordance with the traf fic conditions. #
Place theke y in the slot forst arting the engine with theke y (/ page154).
Place the key in the
marked space See Owner's
Manual *K
eydetection is malfunctioning. #
Change the location of theke y in theve hicle. #
Place theke y in the slot forst arting the engine with theke y (/ page154). Displ
aymessa ges and warning/indicator lamps 375

Display messages
Possible causes/consequences and M MSolutions #
Tryto start theve hicle. #
Ifth eve hicle does not start, consult a qualified specialist workshop.
Cannot start engine See
Owner's Manual *T
hestate of charge ofthe 48 V battery is too lo w.You can no lon gerst art theve hicle. #
Switch off electrical consumers that are not required. #
Connect a suitable charge r appro vedfo r Mercedes-Benz with suf ficient charge output tothe jump-s tart connec‐
tion point of the12 V battery (/ page 325).
The 48 V battery is charge d via thevo ltage con verter in theve hicle.
Motor can be started again *T
he 48 V battery has been charge d automatically via thevo ltage con verter. #
Start theve hicle and drive for a while tocharge the12 V battery and the 48 V batter y. Ty
re pressure moni tor Display messages
Possible causes/consequences and M MSolutions
Tyre press. monitor cur-
rently unavailable *T
here is inter fere nce from a po werful radio signal source. As a result, no signals from the tyre pressure sensors are
being recei ved. The tyre pressure monitoring sy stem is temp orarily una vailable.
The tyre pressure monitoring sy stem will restart automatically as soon as the cause has been rectified. #
Drive on.
Tyre press. monitor inoper-
ative *T
he tyre pressure monitoring sy stem is malfunctioning. Display messages and
warning/indicator lamps 415

Exterior lighting
Care...................................................... 309
Exterior lighting see Lights F
Fa tigue de tection
see ATTENTION ASSIST
Fire extinguisher........................................ 314
Fi rs t-aid kit (soft sided) .............................314
Flacon Inserting/removin g............................... 14 6
Flat towing
see Tow- bar sy stem
Flat tyre MOEx tended tyres................................. 315
No tes..................................................... 315
TIREFIT kit..............................................3 17
Wheel chang e....................................... .345
Floor mats.................................................. 12 5
Fo g light (enhanced) .................................. 131Fo
il co vering
Ra dar and ultrasonic sensor s................184
Fr ag rance
see Fragrance sy stem
Fr ag rance sy stem
Inserting/removing theflacon...............1 46
Setting................................................... 14 5
Fr ee software.............................................. .37
Fr equencies
Mobile phon e....................................... .354
Tw o-w ayradio.......................................3 54
Fr ont airbag (driver, front passenger).......44
Fr ont passenger seat
see Seat
Fu el
Ad ditives...............................................3 60
Diesel.................................................... 360
E10....................................................... .359
Fu elreser ve........................................... 361
Low outside temp eratures..................... 360
Pe trol..................................................... 359
Quality (diesel)...................................... 360
Quality (p etro l)...................................... 359 Re
fuelling............................................... 171
Sulphur content..................................... 359
Ta nk content.......................................... 361
Fu el consum ption indicator
Calling up.............................................. 16 6
Fu nction seat
see Door cont rol panel
Fu ses
Before replacing a fuse.......................... 331
Fu se assignment diagram...................... 331
Fu se box in the engine compartmen t.... 332
Fu se box in the front passenger foot‐
we ll....................................................... 333
Fu se box in the load compartment........ 334
Fu se box on the dashboard................... 333
No tes..................................................... 331 G
Garage door opener Cleari ngthe memory.............................1 80
Programming buttons............................ 178
Re solving problems...............................1 80
Synchronising thero lling code..............1 79454
Index

Individual drive prog
ram
Con figuring............................................ 16 5
Selecting............................................... 16 5
Inspection see AS SYST PLUS
Instrument clus ter
Fu nction/no tes............................. 248, 24 9
Instrument display Function/no tes..................................... 24 9
Instrument clus ter................................... 10
Wa rning/indicator lamps...................... 425
Instrument display and on-boa rd
compu ter
Fu nction/no tes..................................... 24 8
Intelligent Light Sy stem
Ac tivating/deactivating......................... 131
Ac tive headla mps.................................. 13 0
Ad aptive Highbeam Assist..................... 13 2
Ad aptive Highbeam Assist Plus............ .133
Cornering light....................................... 13 0
Fo g light (enhanced)..............................1 31
Mo torw ay mode..................................... 131
Overview............................................... 13 0Interior lighting
Adjusting............................................... 13 5
Ambient lighting.................................... 13 5
Re ading lam p......................................... 13 5
Switch-off del aytime............................. 13 6
Interior pr otection
Fu nction.................................................. 94
Priming/deactivating.............................. 95
Internet radio
see TuneIn
Ionisation Activating/deactivating (MBUX mul‐
timedia sy stem).....................................1 45
iPhone ®
see Smartphone integration
ISOFIX child seat anchor
Seats suitable for attaching..................... 60
ISOFIX child seat securing sy stem
Fitting..................................................... .62 J
Jack Declaration of conformity........................ 29 St
orage location.................................... 344
Jump-start connection General no tes........................................ 323 K
Key Acoustic locking verification signal.......... 74
Battery.................................................... 75
Deactivating a function............................ 74
Emergency key........................................ 75
Energy consumption................................ 74
Fu nction overview.................................. .73
Ke yring attachment................................ 75
Problem................................................... 76
Un locking setting.................................... .74
KEYLESS-GO Deactivating a function............................74
Locking/unlocking theve hicle................78
Problem................................................... 79
Un locking setting.................................... .74
Kickd own
Using.....................................................1 70
Knee airbag................................................. .44456
Index

On-board computer
Displaying the service due dat e............. 297
Head-up displ aymenu........................... 253
Multifunction displa y............................. 251
Ope rating.............................................. 250
Overview of menus................................ 250
On-board diagnostics in terface
see Diagnostics connection
On-board electronics Engine electronics................................. 353
Notes....................................................3 53
Tw o-w ayradios...................................... 353
Online services Data storage............................................ 36
Online services see In-Car Of fice
Open-source soft ware................................ 37
Opening the tailgate using your foot
HANDS-FREE ACCES S............................. 84
Operating fluids
Ad Blue ®
................................................ 362
Ad ditives (fuel)...................................... 360
Brake fluid............................................ .364 Coolant (engine).................................... 365
Engine oil.............................................
.363
Fu el (diesel)...........................................3 60
Fu el (petrol)........................................... 359
No tes..................................................... 357
Wi ndsc reen washer fluid.......................3 65
Operating saf ety
48 V on-boa rdelectrical sy stem.............. 24
Declaration of conformity (electro‐
magnetic compatibility)........................... 26
Declaration of conformity (ja ck).............. 29
Declaration of conformity (TIREFIT kit).... 30
Declaration of conformity (wireless
ve hicle components)...............................26
EQ Boo sttech nology............................... 24
Information..............................................24
Operating sy stem
see On-board computer
Optimised acceleration Activating.............................................. 15 6
Outside mir rors
Anti-dazzle mode (automatic)................ 14 0
Au tomatic mir rorfo lding function......... .141
Fo lding in/out...................................... .139 Operating
the memory function............ 108
Pa rking position..................................... 14 0
Setting................................................... 13 9
Overhead control panel Overview................................................. 14
Owner's Manual Vehicle equipment................................... 24
Owner's Manual (digital)............................ 20 P
Pa int code.................................................. 355
Pa intwork (cleaning instructions) ...........307
Pa rk position
Inserting................................................ 16 8
Selecting au tomatical ly......................... 16 8
Pa rking
see Electric parking brake
Pa rking aid
see Parking Assist PARKTRONIC
Pa rking Assist PARKTRONIC
Ac tivating.............................................. 231
Ad justing warning tones........................ 232
Deactivating.......................................... 231 Index
461

R
Ra dar and ultrasonic senso rs
Damage................................................. 184
Ra dio
Overview of the functions and sym‐
bols....................................................... 293
Ra in-closing feature
Side wind ows.......................................... 87
Sliding sunroof......................................... 91
Ra ising theve hicle
Re ar of theve hicle................................2 20
REA CHregulation........................................32
Re ading lamp
see Interior lighting
Re ading light
Switching on/off with hand mo ve‐
ments.................................................... 260
Re ar door (child saf ety lock)...................... 70
Re ar fog light
Switching on/of f................................... 12 8
Re ar of theve hicle
Lo we ring............................................... 220 Ra
ising.................................................. 220
Re ar seat
see Seat
Re ar seat belt
St atus display......................................... .44
Re ar seat belt status display ..................... 44
Re ar window heater.................................. 14 2
Re ar-view mir ror
Anti-dazzle mode (automatic)................ 14 0
Re ar-view mir ror
see Outside mir rors
Re cycling
see Take -ba ckof end-of-life vehicles
Re ducing agent
see AdBlue ®
Re fuelling
Re fuelling theve hicle............................. 171
Re gistration
Ve hicle.................................................... 32
Re gulatory radio identification................ 355 Re
mo tecont rol (stationa ryheater/
ve ntilation)
Displa ys................................................. 14 9
Problems............................................... 15 0
Re placing the battery............................ 14 9
Setting................................................... 14 8
Re mo teOnline
Charging thest ar ter battery.................. 154
Cooling/heating theve hicle interior...... 154
St arting theve hicle............................... 15 5
Re scue card................................................. 33
Re ser ve
Fu el........................................................ 361
Re set function (MBUX multimedia
sy stem)..................................................... .266
Re set function (MBUX multimedia
sy stem)
see Reset function (MBUX multime‐
dia sy stem)
Re setting (factory setting)
see Reset function (MBUX multime‐
dia sy stem)
Re sidual heat............................................. 14 5 Index
463

St
ow age space
Armrest.................................................. 111
Centre console....................................... 111
Door....................................................... 111
Glo vecompa rtment................................ 111
Stre etnames and house numbers
Displaying..............................................2 70
Suggestions Configuri ng........................................... 262
Sulphur content........................................ 359
Sur round lighting
Switching on/of f................................... 13 5
Sur round View
see 360° Camera
Suspension Adjusting thech assis le vel (AIR
BO DY CONTROL)...................................2 19
Suspension see AIR BODY CONTROL
SV HC (substances of very high con‐
cern) ............................................................. 32
Switch-off del aytime
Exterio r.................................................. 13 5Interior..................................................
13 6
Synchronisation function Activating/deactivating (control
panel).................................................... 14 4
Ac tivating/deactivating (MBUX mul‐
timedia sy stem).....................................1 44
Sy stem settings
Overview of the sy stem settings
menu.....................................................2 62
Re set function (MBUX multimedia
sy stem)................................................. 266 T
Ta ilgate
Closing.................................................... 81
HANDS-FREE ACCES S............................. 84
Limiting the opening angle......................85
Opening................................................... 81
Un locking (emer gency key)..................... 86
Ta ilpipes (care)......................................... .309
Ta ke -back of end-of-life vehicles
Pr otection of the environmen t................. 22
Ta nk content
Ad Blue ®
................................................ 362 Fu
el........................................................3 61
Re ser ve(fuel)........................................ 361
Te ch nical data
Axle load (trailer operation)...................3 69
Fa stening points (trailer hitch)............... 367
Information............................................ 353
Mounting dimensions (trailer hitch)....... 367
No tes (trailer hitch)............................... 367
Overhang dimension (trailer hitch)........3 67
Re gulatory radio identification.............. 355
To ngue weight...................................... .368
To wing capacity (trailer operation )........ 368
Ve hicle identification plate....................3 55
Te lephone
Connecting a mobile phone (Passk ey)... 276
Connecting a mobile phone (Secure
Simple Pairing)...................................... 276
Fu nctions in thete lephone men u.......... 276
No tes..................................................... 273
Operating modes...................................2 75
Te lephone menu overvie w..................... 275
Wi reless charging (mobile phone).......... 124
Te lephony operating modes
Blue tooth ®
Te lephony........................... .275 Index
467

Extending/r
etra cting the ball neck
(MBUX multimedia sy stem)...................2 42
No tes....................................................2 39
Soc ket.................................................. .243
Tr ailer stabilisation
Fu nction/no tes..................................... 188
Tr ansmission position display.................. 16 6
Tr anspo rting
Ve hicle..................................................3 29
Tr im element (Care)................................... 310
Tu neIn
Calling up..............................................2 95
Tu rn signal indicator
Ac tivating/deactivating......................... 12 9
TV Information............................................ 292
Tw o-w ayradios
Fr equencies........................................... 354
No tes on ins tallation............................ .353
Tr ansmission output (maximum )........... 354
Ty re inflation compressor
see TIREFIT kit Ty
re pressure
Checking (ty repressure monitoring
sy stem)................................................. 338
No tes....................................................3 36
Re starting the tyre pressure loss
wa rning sy stem..................................... 340
Re starting the tyre pressure monitor‐
ing sy stem.............................................3 39
TIREFIT kit.............................................. 317
Ty re pressure loss warning sy stem
(function)............................................... 339
Ty re pressure monitoring sy stem
(function)............................................... 338
Ty re pressure table................................ 337
Ty re pressure loss warning sy stem
Fu nction................................................ 339
Re starting.............................................. 340
Ty re pressure moni tor
Fu nction................................................ 338
Ty re pressure moni toring sy stem
Checking the tyre pressure...................3 38
Che cking the tyre temp erature............. 338
Re starting............................................. .339
Ty re pressure table ................................... 337 Ty
re temp erature
Checking (tyre pressure monitoring
sy stem)................................................. 338
Ty re pressure monitoring sy stem
(function)............................................... 338
Ty re tread ................................................... 335
Ty re-change tool kit
Overview............................................... 344
Ty res
Checking............................................... 335
Checking the tyre pressure (tyre
pressure monitoring sy stem)................. 338
Fitting.................................................... 348
Flat tyre.................................................3 15
Inter changing........................................ 343
MOExtended tyres................................ .315
No ise.................................................... .335
No tes on fitting..................................... 340
Re moving.............................................. 348
Re placing...................................... 340, 345
Re placing the wheel trim....................... 345
Re starting the tyre pressure loss
wa rning sy stem..................................... 340
Re starting the tyre pressure monitor‐
ing sy stem.............................................3 39 Index
469