belt MERCEDES-BENZ C-CLASS COUPE 2021 Workshop Manual

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions #
Remo vethe objects from the front passenger seat.
The red seat belt warning lamp lights up once the engine has star ted:
In addition, an intermittent warning tone may sound.
The red seat belt warning lamp reminds the driver and front passenger tofasten their seat belts. #
Fasten your seat belt (/ page 42).
If yo u ha veplaced objects on the front passenger seat, there d seat belt warning lamp may remain lit. Ve
hicle Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
Ù Po we rst eering warning
lamp (red) *T
he red po werst eering sy stem warning lamp is lit while the engine is running.
The po wer assi stance or thesteering itself is malfunctioning. &
WARNING Risk of accident if steering capability is impaired
If th esteering does not function as intended, theve hicle's operating saf ety is jeopardised. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do
not continue driving under any circums tances. #
Consult a qualified specialist workshop. #
Notethe messages on the multifunction displa y.490
Display messages and warning/indicator lamps

Drive program display............................
15 6
Drive programs...................................... 15 5
DY NA MIC SELECT switch...................... 15 5
Engaging drive position........................ .159
Engaging neutral................................... .158
Engaging park position.......................... 15 9
Engaging reve rsege ar........................... 15 8
Kickdown............................................... 161
Manual gear changing.......................... .160
St eering wheel gearshift paddles.......... 16 0
Tr ansmission position displa y................ 157
Tr ansmission position s..........................157
Au tomatic transmission (problem)
see Transmission (problem)
Axle load Perm issible............................................ 41 8
Tr ailer operation.................................... 432 B
Bad weather light...................................... 12 6
Bag hook..................................................... 11 4
Ball ne ck
Fo lding out/in....................................... 227
BA S (Brake Assist Sy stem)....................... 17 7Battery
Remo tecontrol (s tationary heater)........ 141
Battery see Battery (vehicle)
Battery (k ey)
Re placing.................................................73
Battery (vehicle) Charging................................................ 388
Charging (Remo teOnline)...................... 14 6
No tes....................................................3 85
No tes (s tarting assis tance and
ch arging)............................................... 386
Re placing.............................................. 390
St arting assis tance................................ 388
Belt see Seat belt
Bic ycle rack
Load capacity........................................ 431
Tr ailer operation.................................... 231
Blind Spot Assist Activating/deactivating......................... 205
Fu nction................................................ 202
Sy stem limitations................................. 202 Blo
wer
see Climate control
BlueTEC see AdBlue ®
Blue tooth ®
Information............................................ 265
Setting up an Internet connection.........3 30
Switching on/off.................................. .265
Switching profile (DUN/PAN)................ 331
Blue tooth ®
audio
Ac tivating.............................................. 346
De-authorising (de-regis tering) the
device.................................................... 347
Information...........................................3 44
Overview............................................... 345
Sear ching for a track............................. 347
Sear ching for and auth orisingthe
device.................................................... 345
Selecting a media pla yer....................... 346
Switching device via NFC...................... 347
Bonnet Resetting (active bonnet)...................... 362 506
Index

Car
wash
see Care
Car wash (care)......................................... 369
Care 360° camera......................................... 373
Air-water duct........................................ 369
Au tomatic car wash............................... 369
Carpe t.................................................... 374
Deco rative foil...................................... .372
Displ ay................................................... 374
Exterior lighting.................................... .373
High-pressu recleaner........................... 370
Matt finis h............................................. 371
Pa int wo rk.............................................. 371
Plastic trim............................................ 374
Re alwo od/trim elements......................3 74
Re versing camera................................. .373
Ro of lining.............................................. 374
Seat belt................................................ 374
Seat co ver............................................. 374
Senso rs................................................. 373
St eering wheel....................................... 374
Ta ilpipes................................................ 373
Tr ailer hit ch........................................... 373
Wa shing byhand................................... 371Wheels/rims.........................................
373
Wi ndo ws................................................ 373
Wi per blades.......................................... 373
Carpet (Care).............................................. 374
Changing gears
Manually. ............................................... 16 0
Changing hub caps .................................. .409
Charging Battery (vehicle).................................... 388
Chassis Damping characteristics....................... .208
DY NA MIC BODY CONTROL.................... 208
Child seat Appr oval categories................................ .58
At tach ing (no tes).....................................57
Basic instructions.................................... 53
Fr ont passenger seat (no tes)...................68
Fr ont passenger seat (without auto‐
matic airbag shutoff)...............................67
ISOFIX/i-Size (fitting)............................... 61
No tes on risks and dangers..................... 54
Re commended child restra int sy stems....56
Seats suitable for belt-secu redch ild
re stra int sy stems..................................... 65 Seats suitable
for i‑Size child
re stra int sy stems..................................... 61
Seats suitable for ISOFIX child
re stra int sy stems..................................... 60
Securing on the co-driver seat................69
Secu ring on there ar seat........................ 66
To pTe ther............................................... 64
Child ren
Av oiding dangers in theve hicle............... 54
Basic instructions.................................... 53
Cho ck
St orage location.................................... 408
Chock see Chock
CI+ module Calling up a menu................................. 358
Inserting the smart card........................ 357
City lighting ............................................... 12 6
Cleaning see Care
Climate control Activating/deactivating the A/C
function (cont rol panel)........................ .136 508
Index

Moving
away
see Driving tips
MULTIBEAM LED........................................ 124
Multifunction display Overview of the displa ys....................... 236
Multifunction steering wheel
Overview of buttons.............................. 235
Multifunction steering wheel
see Steering wheel
Multimedia sy stem
Ac tivating/deactivating standby mode. .174
Central cont rol elements...................... .255
Configu ring displ aysettings.................. 263
Configuring drive program I................... 157
ENERGIZING COMFORT prog ramme
(o ve rview)............................................. .275
Fa vourites............................................. 258
Overview............................................... 254
St arting the ENERG IZINGCOMFORT
programme............................................2 75
Multimedia sy stem
see En tering characters
see Touchpad N
Na vigation
Showing/hiding the menu..................... 276
Switching on.......................................... 276
Up dating the map data..........................3 00
Vo ice commands (LINGU ATRO NIC)....... 24 3
Na vigation
see Destination
see Destination entry
see Map
see Route
see Route guidance
see Traf fic information
Na vigation announcements
Ac tivating/deactivating......................... 290
Ad justing thevo lume............................ .290
Re peating.............................................. 291
Switching audio fadeout on/of f............ 290
Ne arField Communication (NFC)
Connecting the mobile phone tothe
multimedia sy stem................................ 308
Information............................................ 308
Switching Blue tooth ®
audio equip‐
ment...................................................... 347 Swit
ching mobile phones...................... 308
Using a mobile phon e............................ 308
Ne utral
Engaging................................................ 15 8
NFC see Near Field Communication (NFC) O
Occupant saf ety
see Airbag
see Automatic front passenger front
airbag shutoff
see Child seat
see Pets in theve hicle
see PRE-SAFE ®
(anticipatory occu‐
pant pr otection)
see PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus)
see Restra int sy stem
see Seat belt
Oil see Engine oil
On-board computer Displaying the service due dat e............. 361 Index
525

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

Ro
ute-based speed adaptation
Fu nction................................................. 191
Ro ute-based speed adjustment
Setting................................................... 19 2
Ru n-flat characteristics
MOExtended tyres................................. 379
Ru nning-in no tes........................................ 147S
Saf ety sy stems
see Driving saf ety sy stem
Saf etyve st................................................. 376
Satellite map............................................. 302
SD card Inserting/re moving.............................. .336
Seat 4-waylumbar suppor t............................. 98
Ad justing (electrically)............................ .98
Ad justing (manually and electrically)....... 95
Ad justing (Seat Comfort)........................ .97
Con figuring the settings........................ 100
Cor rect driver's seat position.................. 94
Fo lding back the backrest (rear)............ 11 2Fo
lding the backrest forw ards (rear)...... 111
Fo lding the backrest forw ards/back
(with memory function)........................ .101
Fo lding the backrest forw ards/back‐
wa rds (without memory function).......... 102
Locking the backrest (rear).................... 11 3
Operating the memory function............ 108
Re setting the settings............................1 01
Setting options........................................ 16
Seat belt Activating/deactivating seat belt
adjustment.............................................. 43
Ca re....................................................... 374
Fa stening................................................. 42
Pr otection................................................ 39
Re ar seat belt status displa y................... 43
Re duced pr otection.................................40
Re leasing................................................ .43
Seat belt adjustment (function)............... 43
Seat belt extende r................................... 41
Wa rning lamp.......................................... 43
Seat belt adju stment
Ac tivating/deactivating........................... 43
Fu nction.................................................. 43
Seat belt extender ....................................... 41Seat belt
tensioners
Ac tivation................................................ 38
Seat belt warning
see Seat belt
Seat co ver (Care)....................................... 374
Seat heater Activating/deactivating......................... 103
Seat ventilation
Switching on/o ff................................... 103
Second telephone
Connecting........................................... .306
Fe atures................................................ 306
Selecting a gear
see Changing gears
Selector le ver
see DIRECT SELECT le ver
Self-test Automatic front passenger front air‐
bag shutoff............................................. .49
Sensors (care) ............................................ 373
Service see ASS YST PLUS 530
Index

Vi
deo mode
Ac tivating.............................................. 340
Ac tivating/deactivating full-screen
mode..................................................... 341
Overview................................................ 341
Setting s................................................. 342
VIN Identification plate................................. 41 8
Seat....................................................... 41 8
Wi ndsc reen............................................ 41 8
Vi sion
Demisting windo ws............................... 13 6
Vo ice command types (LINGUA‐
TRONIC)...................................................... 24 0
Vo ice control sy stem
see LINGU ATRO NIC W
Wa rning lamp
see Warning/indicator lamp
Wa rning sy stem
see ATA (anti-theft alarm sy stem) Wa
rning triangle
Re moving............................................... 376
Setting up.............................................. 377
Wa rning/indicator lamp
! ABSwarning lamp....................... .497
J Brake sy stem warning lamp
(red)...................................................... 495
J Brake sy stem warning lamp
(yellow).................................................. 495
ÿ Coolant warning lamp................... 491
! Electric parking brake indicator
lamp (red).............................................. 494
# Electrical fault warning lamp........ 493
; Engine diagnosis warning lamp.... 493
å ESP®
OFF warning lamp.............. .499
÷ ESP®
wa rning lamp..................... .498
8 Fuelreser ve wa rning lamp
lights up................................................ 494
Ù Powe rst eering warning lamp
(red)...................................................... 490 6
Restra int sy stem warning lamp.... 489
ü Seat belt warning lamp................ 489
ä Suspension warning lamp (yel‐
low)....................................................... 497
! The elect ric pa rking brake (yel‐
low) indicator lamp................................ 494
ï Trailer tow hit chwarning lam p...... 491
h Tyre pressure monitoring sys‐
te m wa rning lamp.................................. 500
L Warning lamp for dis tance
wa rning function................................... 496
Overview............................................... 487
Wa rning/indicator lamps
PA SSENGER AIR BAG.............................. 49
Wa rranty ...................................................... 32
Wa sher fluid
see Windsc reen washer fluid
Wa shing byhand (care)............................ 371
Wa ter tank
see Air-water duct Index
539