tyre pressure MERCEDES-BENZ E-CLASS CABRIOLET 2021 Service Manual

Opening dimensions.............................. 367
Boo
Boo t separ
t separ at
ator
or
Closing................................................... .87
Opening.................................................. .87
Br
Br ak
ak e Assis
e Assist Syst t System
em
see BAS (Brake Assist System)
Br
Br ak
ak e
e0uid
0uid
No tes..................................................... 365
Br
Br ak
ak e f
e f or
orce disce distr tribution
ibution
EBD (Elect ronic Brake forc e Distribu-
tion).......................................................1 88
Br
Br ak
ak es
es
ABS (Anti-lock Braking System).............. 185
Ac tive Brake Assist................................. 205
Ad aptive brake lights.............................. 190
BAS (Brake Assist System).................... .186
Driving tips............................................ 158
EBD (Electronic Brake forc e Distribu-
tion).......................................................1 88
HOLD function....................................... 188
Limited braking e.ect (salt-treated
ro ads)................................................... .158
Ne w/replaced brake linings/brake
discs...................................................... 156 Ru
nning-in no tes.................................... 156
Br
Br aking assist aking assist ance
ance
see BAS (Brake Assist System)
Br
Br eakdo
eakdo wn
wn
Overvi ewofthe help functions................. 16
To w- starting........................................... 332
To wing away.......................................... 328
Tr anspo rting theve hicle........................ .330
Wheel chang e........................................ 346
Br
Br ea kdo
eakdo wn
wn
see Flat tyre
Butt
Butt ons
ons
St eering wheel....................................... 249 C
C
Calls
Calls Mercedes me......................................... 277
Camera
Camera Information............................................ 183
Camera
Camera see 360° Camera
see Dashcam
see Reversing camera Car
key
Car key
see Key
Car w Car w ash
ash
see Care
Car w
Car w ash (car
ash (car e)
e)............................................ 305
Car
Car -t
-to-X
o-X -Communication
-Communication
Displaying hazard warnings.................... 271
Care
Care 360° camera......................................... 311
Air-water duct........................................ 305
Automatic car wash.............................. .305
Carpet................................................... 312
Decorative foil........................................ 308
Display................................................... 312
Draught stop.......................................... 310
Exterior lighting...................................... 311
Fo lding draught stop.............................. 310
Head-up display..................................... 312
High-pressure cleaner............................3 06
Pa int...................................................... 307
Plastic trim............................................3 12
Re alwo od/trim elements..................... .312
Re versing camera..................................3 11
Ro of lining............................................. 312 Index
449 449

¯
AdBlue system fault Engine
start not possible................................... 426
¯ AdBlue system fault See Own-
er's Manual............................................ 425
5 Add 1 litre engine oil when next
re fuelling ............................................... 427
é ATTENTION ASSIST inoperati ve..... 399
é ATTENTION ASSIS T:Take a
break!.................................................... 399
: Automatic driving lights inoper-
ative...................................................... 379
Á Change key batteries .................... 375
J Check brake 0uid le vel.................. 398
5 Check eng. oil le v.when next
re fuelling ............................................... 427
ï Check trailer hitch lo ck(white
display message) .................................... 384
h Check tyre(s) ................................ 420
! Clean the fuel /lter....................... 390
J Close boot separator .................... 378 ÿ
Coolant Stop vehicle Switch
engine o............................................... 389
! currently una vailable See Own-
er's Manual............................................4 11
÷ currently una vailable See Own-
er's Manual............................................4 12
5 Engine oil le vel cannot be meas-
ured....................................................... 429
5 Engine oil le velRe duce oil le vel..... 428
5 Engine oil le velSt op vehicle
Switch engine o.................................... 428
5 Engine oil pressure Stop Switch
o. engine.............................................. 429
ä Fault Drive at max. 80 km/h ......... 409
6 Front leT malfunction Consult
wo rkshop (e xample)...............................3 72
_ Front leT seat backrest not
loc ked (e xamp le).................................... 387
& inoperative Battery low................. 383
& inoperative Refuel vehicle............. .383 &
inoperative See Owner's Man........ 382
! inoperative See Owner's Manual.. .412
÷ inoperative See Owner's Manual.. .413
T inoperative See Owner's Manual.. .414
G Inoperative................................... 415
: Intelligent Light System inopera-
tive........................................................ 380
Á Key being initialised Please wait.... 376
Á Key not de tected (red display
message).............................................. .376
Á Key not de tected (white display
message).............................................. .375
: LeT dipped beam (e xample).......... 379
6 LeT windowbag malfunction
Consult workshop (e xample).................. 372
¢ Lowe ring....................................... 410
: Malfunction See Owner's Man-
ual ......................................................... 379
ð Maximum speed exceeded ............ 402
Ø ................................................... .424 Index
453 453

ç
O................................................ .401
ë O.................................................3 98
K Open/close soT top comple tely.... 378
! Parking brake See Owner's
Manual..................................................3 94
É Please reduce speed .................... .410
Ý Please wait 48 V battery charg-
ing......................................................... 418
h Rectify tyre pressure ..................... 421
Ø Re/ll AdBlue See Owner ’sMan-
ual ......................................................... 424
! Release parking brake ...................397
¸ Replace air cleaner ....................... 391
Á Replace key.................................. 375
8 Reser vefuel le vel.......................... 390
6 Restraint sys. malfunction Con-
sult workshop ....................................... .372
# See Owner's Manual..................... 416
K SoTtop lo wering........................... 377 K
SoTtop Operation only up to
60 km/h................................................ 377
Ù Steering malfunction Increased
ph ysical e.ort See Owner's Manual....... 385
Ù Steering malfunction Stop
immediately See Owner's Manual ........... 386
# Stop vehicle Lea veengine run-
ning ....................................................... 417
# Stop vehicle See Owner's Man-
ual......................................................... 417
É Stop vehicle Vehicle too low .......... 409
ç suspended .................................... 400
: Switch o. lights............................ 380
: Switch on headlamps .................... 380
á temp orarily una vailable Camera
view restric ted....................................... 408
¸ temp orarily una vailable Sensors
dirty....................................................... 407
Ø Top up AdBlue Emer gency op. in
XXX miles See Owner's Manual.............. 424 +
Top up coolant See Owner ’s
Manual.................................................. 389
¥ Top up washer 0uid...................... .388
! Turn on the ignition torelease
th e parking brake ................................... 397
d Vehicle is operational Switch o.
ignition before exiting............................. 383
É Vehicle rising Please wait.............. 410
É Vehicle rising ................................ 410
h Warning tyre defect....................... 421
h Wheel sensor(s) missing ................ 420
K While stationar y,apply the
brake before operating the soT top........ 377
Ø XX,X l Top up AdBlue Swit chon
ignition, wait 60 sec. or eng. start not
poss...................................................... 425
Ac tive Blind Spot Assist cur rently
una vailable See Owner's Manual ............ 405
Ac tive Blind Spot Assist inoperative........ 406 454 454
Index

Fr
ont-passenger airbag disabled See
Owner's Manual .................................... .373
Fr ont-passenger airbag enabled See
Owner's Manual .................................... .373
Hazard warning lamps malfunctioning .... 382
Head-up display cur rently una vailable
See Owner's Manual.............................. 385
Head-up display inoperative ...................385
Limiter inoperative................................. 400
Limiter passive....................................... 400
Mo tor can be star ted again .................... 419
N permanently active Risk of vehicle
ro lling....................................................3 92
Only select Park (P) when vehicle is
stationary.............................................. 391
Pa rking Assist and PARKTRONIC inop-
erative See Owner's Manual................... 411
Place theke y in the mar ked space
See Owner's Manual.............................. 376 PRE-SAFE inoperative See Owner's
Manual.................................................. 374
Re duce speed........................................ 422
Re versing not poss. Consult workshop ... 393
Risk of vehicle rolling Driver door
open and transmission not in P .............. 392
Ru n Flat Indica tor inoperative................. 423
Speed limit (winter tyres) XXX km/h .......402
St op vehicle Lea veengine running
Wa itTransmission cooling ......................393
To shiT out of P or N,depress brake
and start engine.................................... .391
To switch o. the engine, press the
St art/ Stop button for at least 3 sec-
onds or 3 times...................................... 388
Tr a1c Sign Assist cur rently una vaila-
ble See Owner's Manual........................ 404
Tr a1c Sign Assist inoperative................. 404
Tr ansmission Malfunction Stop............... 393 Ty
re press. monitor cur rently una vaila-
ble......................................................... 419
Ty re press. monitor inoperative .............. 419
Ty re press. monitor inoperative No
wheel sensors ........................................ 420
Ty re pressure Check tyres ...................... 422
Ty re(s) ove rheated .................................. 422
Wi per malfunctioning .............................388
Wi thout changing gear, consult work-
shop ...................................................... 392
Dist Dist ance contr
ance contr ol
ol
see Active Distance Assist DISTRONIC
DIS
DIS TR
TRONIC
ONIC
see Active Distance Assist DISTRONIC
Door
Door Additional door loc k................................. 77
Locking/unlocking (emer gency key)........ .81
Opening (from inside).............................. .78
Po we r closing function............................. 80
Unlocking (from inside)............................ 78
Door contr
Door contr ol panel
ol panel......................................... 14 456
456
Index

T
T
o
o w
w -a wa
-a wa y pr ot
y pr otection
ection
Fu nction.................................................. 96
Priming/deactivating.............................. .97
Tow
Tow -bar syst
-bar syst em
em............................................ 245
Tow
Tow -st
-star
arting
ting................................................. 332
To
To wing away
wing away................................................. 328
To
To wing eye
wing eye
Fi tting.................................................... 331
St orage location..................................... 331
To
To wing met
wing met hods
hods.......................................... .328
Tr
Tr a1c
a1c inf
infor
ormation
mation
Switching on the display......................... 271
Tr
Tr a1c
a1c Sign Assist
Sign Assist
Fu nction/no tes...................................... 210
Setting................................................... 211
System limits......................................... 210
Tr
Tr ailer hitch ailer hitch
Axle load................................................ 369
Bic ycle rack ........................................... 244
Care...................................................... 311
Coupling up/uncoupling a trailer............ 242
Fa stening points.................................... 368
Fo lding the ball neck out/in................... 240 General no
tes....................................... .368
Mounting dimensions............................. 368
No tes..................................................... 239
Overhang dimension.............................. 368
Soc ket................................................... 242
To ngue weight........................................ 369
To wing capacity.................................... .369
Tr ailer Manoeuv ring Assist...................... 237
T
T r railer Manoeuvr
ailer Manoeuvr ing Assist
ing Assist
Fu nction................................................ 237
Using..................................................... 238
Tr
Tr ailer oper
ailer oper ation
ation
Ac tive Blind Spot Assist.......................... 213
Ac tive Lane Keeping Assist..................... 214
Bicycle rack ........................................... 244
Coupling up/uncoupling a trailer............ 242
Fo lding the ball neck out/in................... 240
No tes..................................................... 239
Soc ket................................................... 242
Tr Tr ailer st
ailer st abilisation
abilisation
Fu nction/no tes...................................... 187
Tr
Tr ansmission
ansmission
Engaging neutral.................................... 168
Tr
Tr ansmission position displ ay
ansmission position displ ay....................... 167 T
T
r
ranspor
anspor ting
ting
Ve hicle.................................................. 330
Tr
Tr im element (Car
im element (Car e)
e)...................................... 312
T
T uneIn
uneIn
Calling up.............................................. 296
T
T ur
ur n signal indicat
n signal indicat or
or
Ac tivating/deactivating.......................... 127
TV
TV Information........................................... .293
Tw
Tw o-wa
o-wa y r
y radios
adios
Fr equencies........................................... 354
No tes on ins tallation.............................. 353
Tr ansmission output (maximum )............. 354
T
T ype approv
ype appr oval number (EU)
al number (EU) ........................... 356
T
T yr
yr e
ein0ation
in0ation com
compr
pressor
essor
see TIREFIT kit
T
T yr
yr e pr
e pr essure
essure
Checking (tyre pressure moni toring
system).................................................. 339
No tes..................................................... 337
Re starting the tyre pressure loss
wa rning system...................................... 341 Index
473 473

Re
starting the tyre pressure monitor-
ing system............................................. 340
TIREFIT kit..............................................3 19
Ty re pressure loss warning system
(function)............................................... 340
Ty re pressure monitoring system
(function)............................................... 339
Ty re pressure table................................ .338
T
T yr
yr e pr
e pr essur
essur e loss w
e loss w ar
arning syst
ning syst em
em
Fu nction................................................ 340
Re starting.............................................. 341
T
T yr
yr e pr
e pr essur
essur e monit
e monit or
oring sy st
ing syst em
em
Checking the tyre pressures................... 339
Checking the tyre temp eratur e............... 339
Fu nction................................................ 339
Re starting.............................................. 340
T
T yr
yr e pr
e pr essur
essur e t
e table
able ...................................... .338
T
T yr
yr e t
e t em
em per
per ature
ature
Checking (tyre pressure monitoring
system)..................................................3 39
Ty re pressure monitoring system
(function)............................................... 339
T T yr
yr e tr
e tr ead
ead.................................................... 336 T
T
yr
yr e-c
e-c hang
hang e t
e tool kit
ool kit
Overview................................................ 345
T
T yr
yr es
es
Checking............................................... 336
Checking the tyre pressure (tyre pres-
sure monitoring system)......................... 339
Fi tting.................................................... 349
Flat tyre................................................. 317
Inter changing......................................... 344
MOExtended tyres................................. 317
Noise..................................................... 336
No tes on /tting...................................... 341
Re moving............................................... 349
Re placing...................................... .341, 346
Re placing the wheel trim........................ 346
Re starting the tyre pressure loss
wa rning system...................................... 341
Re starting the tyre pressure monitor-
ing system............................................. 340
Selection...............................................3 41
Snow chains.......................................... 336
St oring................................................... 345
TIREFIT kit.............................................. 319
Ty re pressure (No tes)............................. 337 Ty
re pressure loss warning system
(function)............................................... 340
Ty re pressure monitoring system
(function)............................................... 339
Ty re pressure table................................ .338
Unusual handling characteristics............ 336 U U
U
Unloc nloc king
king
see Locking/unlocking
U
Updat pdat es
es
Impor tant system updates...................... 262
USB port
USB port Front st owage compartmen t.................. 117
Re ar....................................................... 121 V
V
V
V ehicle
ehicle
Activating/deactivating standby mode... 183
Ad ditional door loc k................................. 77
Cor rect use............................................. .33
Data acquisition....................................... 35
Data storag e............................................ 35
Diagnostics connection............................ 31 474
474
Index

W
W
ar
ar ning syst
ning syst em
em
see ATA (anti-theT alarm system)
W
W ar
ar ning tr
ning tr iangle
iangle
Re moving............................................... 315
Setting up.............................................. 316
W
W ar
ar ning/indicat
ning/indicat or lamp
or lamp
! ABSwarning lamp......................... 440
Ó Active Brake Assist warning lam p..4 39
J Brake system warning lamp (red)... 438
J Brake system warning lamp (yel-
low)....................................................... 437
ÿ Coolant warning lamp (red)........... 433
ÿ Coolant warning lamp (yellow).......4 35
! Electric parking brake indicator
lamp (red).............................................. 437
# Electrical fault warning lam p......... 436
; Engine diagnosis warning lamp...... 435
å ESP®
OFF warning lam p................ 442
÷ ESP®
wa rning lamp 0ashes........... 441
÷ ESP®
wa rning lamp lights up......... 441 8
Fuelreser vewarning lamp lights
up.......................................................... 436
Ù Powe r steering warning lamp
(red)...................................................... 432
6 Restraint system warning lam p...... 431
ü Seat belt warning lamp 0ashes...... 431
ü Seat belt warning lamp lights up.... 432
ä Suspension warning lamp (yel-
low)....................................................... 440
! The electric parking brake (yel-
low) indicator lam p................................. 437
ï Trailer tow hitch warning lam p....... 433
h Tyre pressure monitoring sys-
te m wa rning lamp 0ashes....................... 443
h Tyre pressure monitoring sys-
te m wa rning lamp lights up.................... 443
L Warning lamp for distance
wa rning function.................................... 439
Overview................................................ 429
PA SSENGER AIR BA G............................... 50 W
W arr arr anty
anty........................................................ 34
W
W asher
asher 0uid
0uid
see Windsc reen washer 0uid
W
W ashing b
ashing b y hand (car
y hand (car e)
e)................................ 307
W
W at
at er t
er t ank
ank
see Air-water duct
W
W eat
eat her inf
her inf or
ormation
mation..................................... 271
W
W eb br ow
eb br owsers
sers
Overview................................................ 284
Wheel c
Wheel c hange
hange
Fi tting a new wheel................................ 349
Lo we ring theve hicle.............................. 350
Preparation............................................ 346
Ra ising theve hicle................................. 347
Re moving a wheel................................. .349
Re moving//tting hub caps..................... 346
Wheel c
Wheel c hange hange
see Emer gency spa rewheel
Wheel rot
Wheel rotation
ation ............................................. 344
Wheels
Wheels Care..................................................... .311
Checking............................................... 336 476
476
Index

Checking
the tyre pressure (tyre pres-
sure monitoring system)......................... 339
Fi tting.................................................... 349
Flat tyre................................................. 317
Inter changing......................................... 344
MOExtended tyres................................. 317
Noise..................................................... 336
No tes on /tting...................................... 341
Re moving............................................... 349
Re placing...................................... .341, 346
Re placing the hub cap............................ 346
Re starting the tyre pressure loss
wa rning system...................................... 341
Re starting the tyre pressure monitor-
ing system............................................. 340
Selection...............................................3 41
Snow chains.......................................... 336
St oring................................................... 345
TIREFIT kit.............................................. 319
Ty re pressure (No tes)............................. 337
Ty re pressure loss warning system
(function)............................................... 340
Ty re pressure monitoring system
(function)............................................... 339
Ty re pressure table................................ .338
Unusual handling characteristics............ 336 W
W i-Fi i-Fi
Setting................................................... 263
W
W ind
ind de0ect
de0ect or
or
Care..................................................... .309
W
W indo
indo w
wliTer
liTer
see Side windo ws
W
W indo ws
indo ws
Care...................................................... 311
Opening/closing (all)...............................91
W W indo ws
indo ws
see Side wind ows
W
W indscr
indscr een
een
Demisting.............................................. 142
Re placing the wiper blades.....................1 35
Re placing the wiper blades (MAGIC
VISION CONTROL)................................ .137
W
W indscr indscr een
een
see Windsc reen
W
W indscr
indscr een w
een washer
asher 0uid
0uid
No tes..................................................... 366
W
W indscr
indscr een w
een washer syst
asher syst em
em
To pping up............................................ .304 W
W
indscr
indscr een wipers
een wipers
Ac tivating/deactivating.......................... 134
Re placing the wiper blades.....................1 35
Re placing the wiper blades (MAGIC
VISION CONTROL)................................ .137
W
W int
int er oper
er oper ation
ation
Snow chains.......................................... 336
W W int int er tyr
er tyr es
es
Setting the permanent speed limit..........1 95
W
W iper blades
iper blades
Care...................................................... 311
Re placing (MAGIC VISION CONTROL).... .137
Re placing (windscreen).......................... 135
W
W ir
ireless c
eless c har
harging
ging
Fu nction/no tes...................................... 121
Mobile phone......................................... 123
W
W ir
ireless v
eless v ehicle com
ehicle com ponents
ponents
Declaration of conformity........................ .24
Speci/c absor ption rate........................... 24
W
W ork
ork out pr
out pr ogr
ogram
am
Overview................................................ 106
W
W ork
ork shop
shop
see Quali/ed specialist workshop Index
477
477