radio MERCEDES-BENZ C-CLASS COUPE 2021 Owner's Manual

Note
s ontech nical data
* NO
TEMercedes-AMG vehicles #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. The
tech nical da tawa s de term ined in accord‐
ance with EU Directives. The data stated on ly
applies tovehicles with standard equipment. Yo u
can obtain fur ther information from a Mercedes-
Benz Service Centre.
Only for ce rtain countries: you can find vehi‐
cle-specific vehicle data in the COC documents
(CERTIFIC ATE OF CONFORMITY). These pape rs
are included with theve hicle. On-board electronics
Note
s on tampering with the engine elec‐
tronics *
NO
TEPremature wearthro ugh improper
main tenance Improper maintenance may cause
vehicle
components towe ar more quickly and the
ve hicle's operating permit may be in valida‐
te d. #
Alw ays ha vewo rkon the engine elec‐
tronics and related components car ried
out at a qualified specialist workshop. Tw
o-w ayradios Note
s onfitting two-w ayradios &
WARNING Risk of accident due to
improper workon two-w ayradios
If two-w ayradios are manipulated or retrofit‐
te d incor rectl y,the electromagnetic radiation
from the two-w ayradios can inter fere with th
eve hicle electronics and jeopardise the
operating saf ety of theve hicle. #
You should ha veall workon electrical
and electronic components car ried out
at a qualified specialist workshop. &
WARNING Risk of accident from incor‐
re ct ope ration of two-w ayradios
If yo u use two- wayra dios in theve hicle
improperly, their electromagnetic radiation
can disrupt theve hicle's electronics. This is
true in thefo llowing situations, in particular:
R The two-w ayradio is not connec tedto an
ex terior aerial.
R The exterior aerial is fitted inco rrectly or
is not a lo w-reflection aerial.
This could jeopardise the operating saf ety of
th eve hicle. #
Have the lo w-reflection exterior aerial
fi tted at a qualified specialist workshop. 416
Tech nical da ta

#
When operating two-w ayradios in the
ve hicle, alw ays connect them tothe
lo w- reflection exterior aerial. *
NO
TEInva lidation of the operating per‐
mit due tofailure tocomply wi th the
instructions for ins tallation and use The operating permit may be in
validated if
th e instructions for ins tallation and use of
two-w ayradios are not obser ved. #
Only use appr oved frequency bands. #
Obser vethe maximum permissible out‐
put po wer in these frequency bands. #
Only use appr oved aerial positions. On
vehicles with a panoramic sliding sunroof, fit‐
ting an ae rial to the front or rear roof area is not
permitted.
Use Tech nical Specification ISO/TS 21609 (Road
Ve hicles – "EMCs for ins tallation of af term arket
ra dio frequency transmitting equipment") when
re trofitting two-w ayradios. Comply with the
legal requirements for de tach able parts. If
yo ur vehicle has fittings for two-w ayradio
equipment, use the po wer supp lyand aerial con‐
nec tors prov ided in the pre-ins tallation. Obser ve
th e manufacturer's supplements when fitting.
Tw o-w ayradio transmission output
The maximum transmission output (PEAK) at the
base of the aerial must not exceed theva lues in
th efo llowing table.
Fr equency band and maximum transmission
output Fr
equency band Maximum transmis‐
sion output
Sho rtwa ve
3 - 54 MHz 10
0 W
4 m frequency band
74 - 88 MHz 30 W
2 m frequency band
14 4 - 174 MHz 50 W Fr
equency band Maximum transmis‐
sion output
Te rrestrial Trunked
Ra dio (TETRA)
380 - 460 MHz 10 W
70 cm frequency
band
420 - 450 MHz 35 W
Tw o-w ayradio
(2G/3G/4G) 10 W The
following can be used in theve hicle without
re strictions:
R two-w ayradios with a maximum transmission
output of up to100 mW
R RF transmitters with transmitter frequencies
in the 380 - 410 MHz frequency band and a
maximum transmission output of up to2 W
(TETRA)
R mobile phones (2G/3G/4G) Te
ch nical da ta417

There are no
restrictions when positioning the
aerial on the outside of theve hicle forth efo llow‐
ing frequency bands:
R Terrestrial Trunked Radio (TETRA)
R 70 cm frequency band
R 2G/3G/4G Re
gulatory radio identification of small
co mp onents
Manufacturer information about radio-based
ve hicle components can be found using thekey
phrase "Regulatory radio identification" in the
Digital Operator's Manual in theve hicle, on the
internet and in the app. Ve
hicle identification plate, VIN and engine
number overview
Ve hicle identification plate Ve
hicle identification plate (e xample:Kuwa it)
1 Vehicle manufacturer
2 Place of manufacture
3 Manufacturing date
4 Vehicle model
5 VIN 41 8
Tech nical da ta

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 (/ page146).
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 (/ page146). 438
Displaymessa ges and warning/indicator lamps

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 388).
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 477

Flacon
Inserting/removin g............................... 137
Flat towing
see Tow- bar sy stem
Flat tyre MOEx tended tyres................................. 379
No tes..................................................... 378
TIREFIT kit............................................. 380
Wheel chang e....................................... .409
Floor mats.................................................. 11 9
Fo g light (enhanced) .................................1 25
Fo il co vering
Ra dar and ultrasonic sensor s................175
Fr ag rance
see Fragrance sy stem
Fr ag rance sy stem
Inserting/removing theflacon.............. .137
Setting................................................... 137
Fr ee software.............................................. 36
Fr equencies
Tw o-w ayradio........................................ 417
Fr ont airbag (driver, front passenger)...... .44Fr
ont passenger seat
see Seat
Fu el
Ad ditives...............................................4 23
Diesel.................................................... 423
E10....................................................... .422
Fu elreser ve........................................... 424
Low outside temp eratures..................... 423
Pe trol..................................................... 422
Quality (diesel)...................................... 423
Quality (p etro l)...................................... 422
Re fuelling.............................................. 16 2
Sulphur content..................................... 422
Ta nk content.......................................... 424
Fu nction seat
see Door cont rol panel
Fu ses
Before replacing a fuse.......................... 395
Fu se assignment diagram..................... 395
Fu se box in the boot.............................. 398
Fu se box in the engine compartmen t.... 396
Fu se box in the front passenger foot‐
we ll....................................................... 398
Fu se box on the dashboard................... 397
No tes....................................................3 95 G
Garage door opener Clearing the memory.............................1 71
Programming buttons............................ 16 9
Re solving problems................................ 171
Synchronising thero lling code............. .170
Garage door openers Opening/closing the door...................... 171
Gearshift recommendation..................... .160
Gene ral operating permit number (EU)... 41 8
Genuine parts.............................................. 22
Genuine wood (Care) ................................ .374
Glide mode................................................. 161 H
Handbrake see Electric parking brake
Handling characteristics (unusual)......... 399
HANDS-FREE ACCESS ................................ .82
Hazard warning lights.............................. .123 518
Index

Instrument clus
ter................................... 10
Wa rning/indicator lamps...................... .487
Instrument display and on-board
compu ter
Fu nction/no tes..................................... 233
In te lligent Light Sy stem
Ac tivating/deactivating......................... 12 6
Ac tive headla mps.................................. 124
Ad aptive Highbeam Assist Plus............ .126
Bad weather light.................................. 12 6
City lighting.......................................... .126
Cornering light....................................... 124
Fo g light (enhanced)..............................1 25
Mo torw ay mode..................................... 12 5
Overview................................................1 24
Interior lighting Adjusting............................................... 12 8
Ambient lighting.................................... 12 9
Re ading lam p......................................... 12 8
Switch-off del aytime............................. 12 9
Interior pr otection
Fu nction.................................................. 93
Priming/deactivating.............................. 93 In
term ediatedestination
Calculating a route with intermediate
destinations.......................................... 282
En tering................................................. 281
Modifying............................................... 281
St arting an automatic filling station
sear ch................................................... 280
St arting the automatic service sta‐
tion sear ch............................................ 287
In tern etconnection
Cancelling permission (mobile phone).. 332
Communication module function.......... 329
Displaying the connection status.......... 332
Editing access data (Blue tooth®
)........... 331
Information............................................ 329
Mobile phone de tails............................ .332
Overview of connection status.............. 332
Re strictions........................................... 329
Setting access da ta(Blue tooth ®
).......... 330
Setting up (Blue tooth®
).........................3 30
Setting up (Wi-Fi)................................... 330
Switching Blue tooth®
profile (DUN/
PA N)...................................................... 331
Internet radio
see TuneIn Ionisation
Activating/deactivating (multimedia
sy stem).................................................. 137
iPhone ®
see Apple CarPlay ®
see Mercedes-Benz Link
ISOFIX child seat anchor
Seats suitable for attaching..................... 60
ISOFIX child seat securing sy stem
Fitting..................................................... .61 J
Jack Declaration of conformity........................ 28
Storage location.................................... 408
Jump-start connection General no tes........................................ 386 K
Key Acoustic locking verification signal.......... 72
Battery.................................................... 73
Deactivating a function............................ 72520
Index

Head-up display menu........................... 238
Multifunction displa
y............................. 236
Ope rating.............................................. 235
Overview of menus................................ 235
On-board diagnostics in terface
see Diagnostics connection
On-board electronics Engine electronics................................. 416
No tes..................................................... 416
Tw o-w ayradios...................................... 416
Online services Data storage............................................ 35
Open-source software................................36
Opening the boot lid using your foot
HANDS-FREE ACCES S............................. 82
Ope rating fluids
Ad Blue ®
................................................ 425
Ad ditives (fuel)......................................4 23
Brake fluid............................................ .427
Coolant (engine)................................... .428
Engine oil.............................................. 426
Fu el (diesel)...........................................4 23
Fu el (petrol)........................................... 422
No tes....................................................4 20Wi
ndsc reen washer fluid...................... .429
Operating saf ety
48 V on-board electrical sy stem.............. 23
Declaration of confo rmity (elect ro‐
magnetic compatibility)........................... 25
Declaration of conformity (jack).............. 28
Declaration of conformity (TIREFIT kit).... 29
Declaration of conformity (wire less
ve hicle components)............................... 25
EQ Boost tech nology............................... 23
Information.............................................. 23
Ope rating sy stem
see On-board computer
Optimised acceleration Activating.............................................. 14 8
Outside mir rors
Anti-dazzle mode (automatic)................ 13 3
Au tomatic mir rorfo lding function......... .134
Fo lding in/out....................................... 13 2
Operating the memory function............1 08
Pa rking position..................................... 13 3
Setting................................................... 13 2
Overhead control panel Overview................................................. 14Owner's Manual
Vehicle equipment................................... 23
Owner's Manual (digital)............................ 20 P
Pa int code .................................................. .418
Pa intwork (cleaning instructions) ............371
Pa norama sliding sunroof
see Sliding sunroof
Pa rk position
Inserting................................................ 15 9
Selecting au tomatically......................... 15 9
Pa rking
see Electric parking brake
Pa rking aid
see Parking Assist PARKTRONIC
Pa rking Assist PARKTRONIC
Ac tivating.............................................. 220
Ad justing warning tones........................ 220
Deactivating.......................................... 220
Fu nctio n................................................. 217
Side impact pr otection.......................... 218
Sy stem limitations................................. 217526
Index

Pr
otection of the environment
No tes.......................................................21
Ta ke -ba ckof end-of-life vehicles..............21 Q
Qibla...........................................................3 01
QR code Rescue card............................................33
Qualified specialist workshop .................... 31R
Ra dar and ultrasonic senso rs
Damage................................................. 175
Ra dio
Ac tivating.............................................. 347
Ac tivating/deactivating radio text......... 350
Ac tivating/deactivating traf fic
announcements................................... .350
Calling up a slide sho w.......................... 349
Calling up thest ation lis t...................... .349
Deleting stations.................................. .349
Direct frequency entr y.......................... 349
Displaying information........................... 350
Displaying radio text.............................. 350 Fr
equency fix......................................... 350
Managing favo urites.............................. 349
Managing station presets...................... 349
Moving stations.................................... .349
Overview.............................................. .348
Sear ching forst ations.......................... .349
Setting a channel................................. .348
Setting station trackin g......................... 350
Setting the frequency band................... 348
Setting the traf fic information
service volume inc rease........................ 350
St oring radio stations............................ 349
Ta gging music trac ks............................. 350
Vo ice commands (LINGU ATRO NIC)........2 47
Ra in-closing feature
Side wind ows.......................................... 85
Sl iding sunroof....................................... .90
REA CHregulation........................................31
Re ading lamp
see Interior lighting
Re ar fog light
Switching on/of f................................... 12 2
Re ar seat
see Seat Re
ar seat belt
St atus display......................................... .43
Re ar seat belt status display ..................... 43
Re ar window heater.................................. 13 5
Re ar-view mir ror
Anti-dazzle mode (automatic)................ 13 3
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............................1 62
Re gistration
Ve hicle.....................................................31
Re gulatory radio identification................. 41 8
Re mo tecont rol (stationa ryheater/
ve ntilation)
Displa ys................................................. 141
Problems............................................... 14 2
Re placing the battery.............................1 41528
Index

Centre console.......................................
111
Door....................................................... 111
Glo vecompa rtment................................ 111
Sulphur content........................................4 22
Sur round lighting
Setting................................................... 12 8
Sur round View
see 360° Camera
Suspension Setting the suspension le vel (AIR‐
MATIC)................................................. .209
Suspension see AIRMATIC
Suspension le vel (AIRMATIC)
Setting................................................... 209
SV HC (substances of very high con‐
cern) ............................................................. 31
Switch-off delay time Exterior.................................................. 12 8
Interior.................................................. 12 9
Switching the sur round sound on/off
Burmes ter®
sur round sound sy stem..... 360 Synchronisation function
Activating/deactivating (control
panel).................................................... 13 6
Ac tivating/deactivating (multimedia
sy stem).................................................. 13 6
Sy stem settings
Ac tivating/deactivating PIN pr otec‐
tion........................................................ 270
Re set function (MBUX multimedia
sy stem).................................................. 274
Setting the dis tance uni t....................... 269
Setting the time and date automati‐
cally.......................................................2 64
Setting the time zone. ........................... 264
Setting the time/date form at................ 265
Swit ching transmission of theve hicle
position on/off...................................... 265
Sy stem settings
see Blue tooth®
see Data import/export
see Language
see Wi-Fi T
Ta ilpipes (care)......................................... .373 Ta
ke -back of end-of-life vehicles
Pr otection of the environmen t................. 21
Ta nk content
Ad Blue ®
................................................ 426
Fu el....................................................... 424
Re ser ve(fuel)........................................ 424
Te ch nical data
Axle load (trailer operation)...................4 32
Fa stening points (trailer hitch)............... 431
Information............................................ 416
Mounting dimensions (trailer hitch)....... 431
No tes (trailer hitch)............................... 430
Overhang dimension (trailer hitch)........4 31
Re gulatory radio identification...............4 18
To ngue weight...................................... .431
To wing capacity (trailer operation)........ 431
Ve hicle identification plate..................... 41 8
Te lephone
Ac tivating functions du ring a cal l.......... 309
Call and ringtone volume...................... .309
Calls with se veral participant s............... 309
Connecting a mobile phone (Near
Field Communication (NFC))................. 308
Connecting a mobile phone (Passk ey)... 305 Index
533