MERCEDES-BENZ C-CLASS CABRIOLET 2021 Owners Manual

Ty
re pressure moni torWa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
h Ty re pressure monitoring
sy stem warning lamp *The
yellow tyre pressure monitor warning lamp (pressure loss/malfunction) flashes for appro ximately one minu te
and then remains lit.
or
The yellow tyre pressure monitoring sy stem warning lamp (pressure loss/malfunction) is lit.
The yellow tyre pressure monitor warning lamp (pressure loss/malfunction) flashes for appr oxima tely one
minute and then remains lit:
The tyre pressu remonitor is malfunctioning. &
WARNING Thereis a risk of an accident if the tyre pressure monitoring sy stem is malfunctioning
The tyre pressure monitoring sy stem cann otissue a warning if there is pressure loss in one or more of the tyres.
Ty res with insuf ficient tyre pressure may impair the driving characteristics as well as steering and braking. #
Have the tyre pressure monitoring sy stem checked at a qualified specialist workshop. The
yellow tyre pressure monitoring sy stem warning lamp (pressure loss/malfunction) is lit:
The tyre pressure monitoring sy stem has de tected tyre pressure loss in at least one of the tyres. &
WARNING Risk of an accident due toinsuf ficient tyre pressure
R The tyres can bu rst. 498
Displaymessa ges and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
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 and the tyres. Display messages and
warning/indicator lamps 499

1,
2, 3 ...
4MATIC Function................................................ 15 5
12 V battery
see Battery (vehicle)
12 V so cket
see Soc ket (12 V)
48 V on-board electrical sy stem
see EQ Boo sttech nology
360° Came ra
Button................................................... 209
Ca re...................................................... 368
Fu nction................................................ 206
Opening the camera co ver (r eve rsing
camera)................................................. 209
Selecting a view................................... .209
Setting favo urites.................................. 209
Swit ching automatic operation
on/off (r eversing camera).................... .209 A
A/C function Activating/deactivating (control
panel).................................................... 13 4
ABS (Anti-lock Braking Sy stem) .............. .170
Ac celeration
see Kickdown
Ac cess data
Editing (Blue tooth®
)...............................3 24
Setting (Blue tooth®
).............................. 323
Ac cident and Breakdown Manage‐
ment
Mercedes me connect.......................... .318
Ac oustic locking verification signal
Ac tivating/deactivating........................... 73
Ac tivating/deactivating automatic
vo lume adjustment
Ad vanced sound sy stem........................3 53
Burmes ter®
sur round sound sy stem..... 352
Ac tive Blind Spot Assi st
Brake application................................... 197
Fu nction................................................ 19 5
Sy stem limitations................................. 19 5Tr
ailer operatio n.................................... 197
Ac tive bonn et(pedestrian pr otection)
Operation.............................................. 355
Re setting...............................................3 55
Ac tive Brake Assi st
Fu nction/no tes..................................... 189
Setting................................................... 19 3
Ac tive Di stance Assist DISTRO NIC
Ac tive Emergency Stop Assis t............... 188
Calling up a spee d................................. 182
Fu nction................................................ 17 9
Increasing/decreasing speed................ 182
Ro ute-based speed adap tatio n.............. 184
Selecting............................................... 182
St oring a speed.....................................1 82
Switching off/deactivating.................... 182
Switching on/activating........................ 182
Sy stem limitations................................. 17 9
Ac tive Eme rgency Stop Assist ................ .188
Ac tive headlamps...................................... 12 2
Ac tive Lane Keeping Assist
Ac tivating/deactivating......................... 200
Ac tivating/deactivating thewa rning...... 201
Fu nction................................................ 19 8500
Index

Sy
stem limits.........................................1 98
Tr ailer operation.................................... 19 8
Ac tive Parking Assist
Exiting a parking space......................... .216
Fu nction................................................. 213
Pa rking................................................. .215
Sy stem limitations................................. 213
Ac tive Se rvice Sy stem PLUS
see AS SYST PLUS
Ac tive Speed Limit Assi st
Displ ay.................................................. 183
Fu nction................................................ 183
Ac tive Steering Assist
Ac tivating/deactivating......................... 187
Ac tive Emergency Stop Assis t............... 188
Fu nction................................................ 186
Sy stem limits.........................................1 86
Ad aptive brake lights ................................ 174
Ad aptive cruise control
see Active Dis tance Assi stDISTRONIC
Ad aptive Highbeam Assist Plus
Fu nction................................................. 124
Switching on/of f................................... 12 5Ad
Blue ®
Ad ditives................................................ 421
Capacity................................................ 422
No tes..................................................... 15 8
Purity..................................................... 421
To pping up............................................. 15 9
Ad ditional door lo ck.................................... 75
Ad diti ves
Ad Blue ®
................................................. 421
Engine oil.............................................. 422
Fu el........................................................4 19
Ad diti ves (AdBlue ®
)
see AdBlue ®
Ad diti ves (engine oil)
see Additives
Ad diti ves (fuel)
see Fuel
Ad dress book
see Contacts
Ad justing bass, mid- range and treble
settings
Adva nced sound sy stem........................3 53Ad
justing mid- range, treble and bass
settings
Adva nced sound sy stem........................3 53
Ad justing the balance/ fader
Adva nced sound sy stem........................3 53
Burmes ter®
sur round sound sy stem..... 353
Ad justing the bass, mid- range and
treble
Burmes ter®
sur round sound sy stem..... 352
Ad justing the mid- range, treble and
bass
Burmes ter®
sur round sound sy stem..... 352
Ad justing the sound focus
Burmes ter®
sur round sound sy stem..... 353
Ad justing treble, mid- range and bass
settings
Adva nced sound sy stem........................3 53
Burmes ter®
sur round sound sy stem..... 352
ADS PLUS damping sy stem
see AIRMATIC
Ad vanced sound sy stem
Ad justing the balance/fader................. 353 Index
501

Ad
justing treble, mid-range and bass
setting s................................................. 353
Calling up the sound menu.................... 353
Information............................................ 353
Switching volume adjustment on/of f.... 353
Af ter-sales service centre
see ASS YST PLUS
Air distribution Setting................................................... 13 3
Air inlet see Air-water duct
Air pressu re
see Tyre pressure
Air suspension see AIRMATIC
Air vents
Ad justing (front).................................... 13 5
Ad justing (rear)..................................... .135
Ad justing the AIRSCARF vents............... 13 6
Air vents
see Air vents
Ai r-conditioning sy stem
see Climate control Air-recirculation mode..............................
13 4
Air-water duct Keeping free.......................................... 362
Airbag Activation................................................ 38
Fr ont airbag (driver, front passenger)...... 44
Head airba g............................................. 44
Ins tallation locations.............................. .44
Knee airbag............................................ .44
Overview................................................. 44
PA SSENGER AIR BAG indicator lamp....... 49
Pr otection................................................ 45
Re duced pr otection.................................46
Side airba g.............................................. 44
AIR CAP
Ac tivating................................................ 84
Deactivating............................................ 84
Airflow Setting................................................... 13 3
AIRM ATIC
Setting.................................................. .202
Suspension............................................ 201
AIRSCARF Adjusting the outlets............................. 13 6Switching on/of
f................................... 105
Alarm sy stem
see ATA (anti-theft alarm sy stem)
All-wheel drive see 4MATIC
Alternative route
see Route
Ambient lighting Setting (MBUX multimedia sy stem)....... 127
Android Auto
Connecting a mobile phone (wireless).. .312
Ending.................................................... 312
Information............................................ 312
Overview................................................3 11
Sound settings....................................... 312
Tr ans ferred vehicle data........................3 13
Animals Pets in theve hicle................................... 71
Anti-lock braking sy stem
see ABS (Anti-lock Braking Sy stem)
Anti-skid chains
see Snow chains 502
Index

Anti-theft pr
otection
Ad ditional door loc k................................ 75
Immobiliser............................................. 92
Anti-theft pr otection
see ATA (anti-theft alarm sy stem)
Anticipatory occupant pr otection
see PRE- SAFE®
(anticipatory occu‐
pant pr otection)
see PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus)
Apple CarPlay ®
Connecting an iPhone ®
.........................3 10
Ending.................................................... 311
No tes..................................................... 310
Overview................................................ 310
Sound settings....................................... 311
Tr ans ferred vehicle data........................3 13
Assistance sy stems
see Driving saf ety sy stem
ASS YST PLUS
Battery disconnection pe riods.............. 355
Displaying the service due dat e............. 354
Fu nction/no tes..................................... 354
Re gular maintenance work.................... 354 Special service
requirements............... .354
ATA (anti-theft ala rmsystem)
Deactivating the alarm............................ 93
Fu nction.................................................. 92
Fu nction of interior pr otection................. 93
Priming/deactivating interior pr otec‐
tion..........................................................94
Priming/deactivating tow- aw ay pro‐
te ction..................................................... 93
To w- aw ay protection function.................. 93
AT TENTION ASSI ST
Fu nction................................................. 174
Setting................................................... 176
Sy stem limitations................................. 174
At tention assistant
see ATTENTION ASSIST
Au dio mode
Connecting USB device s....................... 331
Co pyrights............................................. 329
Information............................................ 327
Inserting/re moving an SD car d............. 329
Media sea rch........................................ .335
Overview............................................... 331
Pa use and playback function................ .332 Selecting a track................................... 332
Selecting playba
ckoptions.................... 332
Switching on media mode..................... 329
Tr ack list............................................... .332
Au thorised workshop
see Qualified specialist workshop
Au tomatic distance control
see Active Dis tance Assi stDISTRONIC
Au tomatic driving lights ...........................12 0
Au tomatic engine start (ECO start/
sto p function)............................................ 14 5
Au tomatic engine stop (ECO start/
sto p function)............................................ 14 5
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 Index
503

Au
tomatic mir rorfo lding function
Ac tivating/deactivating......................... 13 2
Au tomatic transmission
DIRECT SELECT le ver............................. 15 0
Drive program display............................ 14 9
Drive programs...................................... 14 8
DY NA MIC SELECT switch...................... 14 8
Engaging drive position........................ .152
Engaging neutral................................... .151
Engaging pa rkposition.......................... 15 2
Engaging reve rsege ar........................... .151
Kickdown............................................... 154
Manual gear changing.......................... .153
St eering wheel gearshift paddles.......... 15 3
Tr ansmission position displa y................ 15 0
Tr ansmission position s..........................15 0
Au tomatic transmission (problem)
see Transmission (problem)
Axle load Perm issible............................................ 414
Tr ailer operation.................................... 429 B
Bad weather light...................................... 124Ball ne
ck
Fo lding out/in....................................... 220
BA S (Brake Assist Sy stem)....................... 17 0
Battery see Battery (vehicle)
Battery (k ey)
Re placing.................................................74
Battery (vehicle) Charging................................................ 384
Charging (Remo teOnline)...................... 13 9
No tes..................................................... 381
No tes (s tarting assis tance and
ch arging)............................................... 382
Re placing.............................................. 386
St arting assis tance................................ 384
Belt see Seat belt
Bic ycle rack
Load capacity........................................ 428
Tr ailer operation.................................... 224
Blind Spot Assist Activating/deactivating......................... 19 8
Fu nction................................................ 19 5Sy
stem limitations................................. 19 5
Blo wer
see Climate control
BlueTEC see AdBlue ®
Blue tooth ®
Information............................................ 258
Setting up an Internet connection.........3 23
Switching on/off.................................. .258
Switching profile (DUN/PAN)................ 324
Blue tooth ®
audio
Ac tivating.............................................. 339
De-authorising (de-regis tering) the
device.................................................... 340
Information............................................ 337
Overview............................................... 338
Sear ching for a track............................. 340
Sear ching for and auth orisingthe
device.................................................... 338
Selecting a media pla yer....................... 339
Switching device via NFC...................... 340
Bonnet Resetting (active bonnet)...................... 355 504
Index

Boot lid
Activating/deactivating theta ilgate
opening limiter........................................ .81
Closin g................................................... .80
Locking separa tely................................... 81
Opening................................................... 80
Boot separator Closing....................................................83
Opening................................................... 83
Brake Assist Sy stem
see BAS (Brake Assi stSystem)
Brake fluid
No tes..................................................... 424
Brake forc e distribution
EBD (Elect ronic Brake forc e Distribu‐
tion).......................................................1 72
Brakes ABS (Anti-lock Braking Sy stem).............1 70
Ac tive Brake Assi st................................ 189
Ad aptive brake lights............................. 174
BA S (Brake Assi stSystem).................... 17 0
Driving tips........................................... .142
EBD (Electronic Brake forc e Distribu‐
tion).......................................................1 72HOLD functio
n....................................... 173
Limited braking ef fect (salt-trea ted
ro ads).................................................... 14 2
New/replaced brake linings/brake
discs...................................................... 14 0
Ru nning-in no tes.................................... 14 0
Braking assistance see BAS (Brake Assi stSystem)
Breakdown Overview of the help functions................ 18
To w- starting........................................... 391
To wing away.......................................... 387
Tr ansporting theve hicle........................ 389
Wheel chang e....................................... .405
Breakdown see Flat tyre
Burmes ter®
sur round sound sy stem
Ad justing the balance/fader................. 353
Ad justing the sound focus..................... 353
Ad justing treble, mid-range and bass
setting s................................................. 352
Au tomatic volume adjustment............... 352
Calling up the sound menu.................... 352
Information............................................ 352 Switching
the sur round sound on/off...3 53
Buttons Steering wheel...................................... 228 C
Call list Making a call.........................................3 06
Overview.............................................. .305
Calling up the sound menu
Adva nced sound sy stem........................3 53
Burmes ter®
sur round sound sy stem..... 352
Calls Accepting.............................................. 302
Ac tivating functions du ring a call......... .302
Calls with se veral participant s............... 302
Declining............................................... 302
Ending a call.......................................... 302
Incoming call du ring an existing call...... 303
Making.................................................. 302
Mercedes me......................................... 313
Camera see 360° Camera
see Reversing camera Index
505

Car
key
see Key
Car wash
see Care
Car wash (care)......................................... 362
Care 360° camera......................................... 368
Air-water duct........................................3 62
Au tomatic car wash............................... 362
Carpe t.................................................. .369
Decorative foil...................................... .365
Displ ay.................................................. 369
Draught stop......................................... 367
Exterior lighting..................................... 368
Fo lding draught stop.............................3 68
High-p ressure cleaner........................... 364
Matt finis h............................................. 364
Pa int wo rk.............................................. 364
Plastic trim............................................ 369
Re alwo od/trim elements..................... 369
Re versing camera................................. .368
Ro of lining.............................................3 69
Seat belt............................................... .369
Seat co ver............................................. 369
Senso rs................................................. 368 Soft
top................................................. 366
St eering wheel...................................... 369
Ta ilpipes................................................ 368
Tr ailer hit ch........................................... 368
Wa shing byhand................................... 364
Wheels/rims.........................................3 68
Wi nd de flector.......................................3 66
Wi ndo ws................................................ 368
Wi per blades.........................................3 68
Carpet (Care)............................................. 369
Changing gears
Manually. ............................................... 15 3
Changing hub caps .................................. .405
Charging Battery (vehicle).................................... 384
Chassis Damping characteristics....................... .201
DY NA MIC BODY CONTROL.................... 201
Child seat Appr oval categories................................ .58
At tach ing (no tes).....................................58
Basic instructions.................................... 53
Fr ont passenger seat (no tes)...................69 Fr
ont passenger seat (without auto‐
matic airbag shutoff)...............................68
ISOFIX/i-Size (fitting).............................. 62
No tes on risks and dangers..................... 54
Re commended child restra int sy stems.... 57
Seats suitable for belt-secu redch ild
re stra int sy stems..................................... 65
Seats suitable for i‑Size child
re stra int sy stems..................................... 62
Seats suitable for ISOFIX child
re stra int sy stems..................................... 60
Securing on the co-driver seat................70
Secu ring on there ar seat........................ 67
To pTe ther............................................... 64
Child ren
Av oiding dangers in theve hicle............... 54
Basic instructions.................................... 53
Cho ck
St orage location.................................... 404
Chock see Chock
CI+ module Calling up a menu..................................3 51
Inserting the smart card........................ 350 506
Index

City lighting
................................................ 124
Cleaning see Care
Climate control Activating/deactivating the A/C
function (cont rol panel)........................ .134
Ac tivating/deactivating the synchro‐
nisation function (cont rol panel)............ 13 4
Air-reci rculation mode.......................... .134
Au tomatic control.................................. 13 4
Demi sting the windscreen..................... 13 3
Demi sting windo ws............................... 13 4
Fr ont air vents....................................... 13 5
Ionisation............................................... 13 4
No te...................................................... 13 3
Re ar air vents....................................... .135
Setting the air distribution..................... 13 3
Setting the air flow ................................. 13 3
Setting theve hicle interior temp era‐
ture........................................................ 13 3
Switching on/of f................................... 13 3
Switching there ar wind owheater
on/off...................................................1 33
THERMATIC control pane l...................... 13 3
THERMOTRONIC contro l panel..............133 Ve
ntilating theve hicle (con venience
opening).................................................. 90
Co ckpit
Overview................................................... 6
Co ffee cup symbol
see ATTENTION ASSIST
Collision de tection (pa rked vehicle)
Information............................................ 16 6
COMAND Online see Multimedia sy stem
COMAND Touch
Managing devices.................................. 261
Combination switch .................................. 121
Compass................................................... .294
Compu ter
see On-board computer
Connection status
Displ aying.............................................. 325
Overview............................................... 325
Contacts Calling up.............................................. 304
Deleting................................................. 305
Downloading (from mobile phone)........ 303 Importing.............................................. 304
Importing (o
verview)............................. 304
Information........................................... .303
Making a call......................................... 305
Na me form at......................................... 304
Options................................................ .305
St oring..................................................3 05
Controller Operating.............................................. 24 9
Con venience closing ................................... 90
Con venience opening ..................................90
Coolant (engine) Check le vel............................................ 361
No tes..................................................... 424
Cooling see Climate control
Co pyright..................................................... 36
Cornering light ...........................................1 22
Cross Traf fic Alert..................................... .218
Crosswind Assist Function/no tes...................................... 171 Index
507