engine MERCEDES-BENZ E-CLASS CABRIOLET 2020 Owners Manual

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
Fu nction of Active Brake Assi st (/ page 186).
ä
Suspension warning lamp
(yellow) The
yellow AIR BODY CONTROL warning lamp is lit.
The yellow DYNA MIC BODY CONTROL warning lamp is lit.
*A fault has occur red in the AIR BODY CONTROL.
A fault has occur red in theDY NA MIC BODY CONTROL. #
Notethe messages on the multifunction displa y.Driving saf
ety sy stems Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
! ABS warning lamp The
yellow ABS warning lamp is lit while the engine is running.
*ABS is malfunctioning. If th ere is an additional warning tone, EBD is malfunctioning.
Other driving sy stems and driving saf ety sy stems may also be malfunctioning. #
Notethe messages on the multifunction displa y. &
WARNING Thereis a risk of skidding if EBD or ABS is malfunctioning
The wheels may lock during braking. 424
Display messages and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
The steerability and braking characteristics are heavily impaired and the braking dis tance may increase. In addi‐
tion, other driving saf ety sy stems are switched off. #
Drive on carefull y. #
Have the brake sy stem checked immediately at a qualified specialist workshop. ÷
ESP ®
wa rning lamp flashes The
yellow ESP ®
wa rning lamp flashes while theve hicle is in motion.
*O ne or more wheels has reached its grip limit (/ page183). #
Adapt your driving style to suit thero ad and weather conditions.
÷ ESP ®
wa rning lamp lights
up The
yellow ESP ®
wa rning lamp is lit while the engine is running.
* ESP ®
is malfunctioning.
Other driving sy stems and driving saf ety sy stems (e.g. BAS) may also be malfunctioning. #
Notethe messages on the multifunction displa y. &
WARNING Risk of skidding if ESP ®
is malfunctioning
If ESP ®
is malfunctioning, ESP ®
cannot car ryout vehicle stabilisation. In addition, other driving saf ety sy stems
are switched off. #
Drive on carefull y. #
Have ESP ®
ch ecked at a qualified specialist workshop. Display messages and
warning/indicator lamps 425

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
å ESP ®
OFF warning lamp The
yellow ESP ®
OFF warning lamp is lit while the engine is running.
* ESP ®
is deacti vated.
Other driving sy stems and driving saf ety sy stems may also be inoperative. &
WARNING Risk of skidding when driving wi thESP ®
deacti vated
ESP ®
does not act tostabilise theve hicle. The availability of fur ther driving saf ety sy stems is also limited. #
Drive on carefull y. #
Deactivate ESP ®
only for as long as the situation requ ires.
If ESP ®
cannot be activated, ESP ®
is malfunctioning. #
Have ESP ®
ch ecked immediately at a qualified specialist workshop. #
Obser vethe no tes on deactivating ESP ®
(/ page 183). 426
Displaymessa ges and warning/indicator lamps

Ac
tive Se rvice Sy stem PLUS
see AS SYST PLUS
Ac tive Speed Limit Assi st....................... 19 8
Displ ay................................................. 19 8
Fu nction .............................................. 19 8
Ac tive Steering Assist ............................ .201
Ac tivating/deactivating ...................... .203
Ac tive Emergency Stop Assist .............2 03
Fu nction .............................................. 201
Sy stem limits ....................................... 201
Ac tive Traf fic Jam Assist
Ac tivating/deactivating ...................... .204
Fu nction .............................................. 203
Ad aptive brake lights ..............................19 0
Ad aptive cruise control
see Active Dis tance Assi stDISTRONIC
Ad aptive Highbeam Assist
Fu nction .............................................. 127
Switching on/off ................................. 12 8
Ad aptive Highbeam Assist Plus
Fu nction .............................................. 12 8
Switching on/off ................................. 13 0Ad
Blue ®
.................................................... 350
Ad ditives .............................................3 50
Capacity .............................................. 350
No tes ................................................... 171
Purity ................................................... 350
To pping up ...........................................1 72
Ad ditional door lo ck.................................. 74
Ad diti ves.................................................. 351
Ad Blue ®
............................................... 350
Engine oil ............................................. 351
Fu el ..................................................... 348
Ad diti ves (AdBlue ®
)
see AdBlue ®
Ad diti ves (engine oil)
see Additives
Ad diti ves (fuel)
see Fuel
ADS PLUS damping sy stem
see AIR BODY CONTROL
Ad versewe ather light ............................ .127
Af ter-sales service centre
see ASS YST PLUS AIR
BODY CONT ROL................................ 206
Setting ................................................ .207
Suspension .......................................... 206
Air conditioning menu Calling up ............................................ 14 0
Air distribution Setting ................................................ .139
Setting (MBUX multimedia sy stem) ...... 141
Air freshener sy stem
see Frag rance sy stem
Air inlet see Air-water duct
Air pressure see Tyre pressure
Air suspension see AIR BODY CONTROL
Air vents ................................................... 147
Ad justing (front) ................................... 147
Ad justing (rear) .................................... 14 8
Ad justing the AIRSCARF vents ............. 14 8
Air vents
see Air vents 430
Index

At
tention assistant
see ATTENTION ASSIST
Au thorised workshop
see Qualified specialist workshop
Au tomatic distance control
see Active Dis tance Assi stDISTRONIC
Au tomatic driving lights .........................12 3
Au tomatic engine start (ECO start/
sto p function) .......................................... 15 8
Au tomatic engine stop (ECO start/
sto p function) .......................................... 15 8
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 ........................................... 45, 47
Fu nction of the automatic front
passenger front airbag deactivation
sy stem ................................................... 45
PA SSENGER AIR BAG indicator lamp .... .47
Au tomatic mir rorfo lding function
Ac tivating/deactivating ...................... .138 Au
tomatic seat adjustment
Setting ................................................ .102
Au tomatic transmission
DIRECT SELECT le ver ........................... 16 4
Drive program display .......................... 16 3
Drive programs .................................... 16 2
DY NA MIC SELECT switch .................... 16 2
Engaging drive position ....................... 16 6
Engaging neutral .................................. 16 5
Engaging pa rkposition ........................ 16 6
Engaging reve rsege ar ........................ .165
Kickdown ............................................. 167
Manual gear changing ........................ .166
St eering wheel gearshift paddles ........ .166
Tr ansmission position display .............. 16 4
Tr ansmission positions ........................ 16 4
Axle load Perm issible .......................................... 343
Tr ailer operation .................................. 357 B
Bag hook .................................................. .117 Ball ne
ck
Extending/r etra cting (MBUX multi‐
media sy stem) .....................................2 36
Fo lding out/in .................................... .234
BA S (Brake Assist Sy stem) .................... .182
Battery Key ........................................................ 73
Re mo tecontrol (s tationary heater) ...... 14 6
Battery see Battery (vehicle)
Battery (vehicle) ...................................... 317
Charging .............................................. 316
Charging (Remo teOnline) .................... 15 3
No tes ................................................... 312
No tes (s tarting assis tance and
ch arging) .............................................. 314
Re placing .............................................3 17
St arting assis tance .............................. 316
Belt see Seat belt
Bic ycle rack
Load capacity ...................................... 357
Tr ailer operation .................................. 239 432
Index

Cleaning
see Care
Climate control ........................................ 13 9
Ac tivating/deactivating the A/C
function (cont rol panel) ...................... .140
Ac tivating/deactivating the A/C
function (MBUX multimedia sy stem) ... 14 0
Ac tivating/deactivating the synchro‐
nisation function (cont rol panel) .......... 141
Ac tivating/deactivating the synchro‐
nisation function (MBUX multimedia
sy stem) ................................................ 141
Air-reci rculation mode ........................ .142
Au tomatic control ................................ 141
Calling up the air conditioning menu ... 14 0
Climate style function .......................... 141
Demi sting the windscreen ...................1 39
Demisting wind ows............................. 14 2
Fr ont air vents ..................................... 147
Inserting/removing theflacon (fra‐
gr ance sy stem) .................................... 14 2
Ionisation ............................................. 14 2
No te .................................................... 13 9
Re ar air vents ...................................... 14 8
Re sidual heat ....................................... 14 2Setting (MBUX multimedia sy
stem) ..... 14 0
Setting the air distribution ...................1 39
Setting the air flow ............................... 13 9
Setting the climate style ......................1 41
Setting the fragrance sy stem ............... 14 2
Setting thete mp erature ......................1 39
St ationary heater/ ventilation .............. 14 3
Switching on/off ................................. 14 0
Switching there ar wind owheater
on/off .................................................1 39
THERMATIC control panel .................... 13 9
THERMOTRONIC contro l panel ............13 9
Ve ntilating theve hicle (con venience
opening) ................................................ 91
Climate style
Fu nction ............................................... 141
Setting ................................................. 141
Cockpit ........................................................ .6
Overview .................................................6
Cof fee cup symbol
see ATTENTION ASSIST
Combination switch ................................124
Compu ter
see On-board computer Consum
ption indicator
Calling up ............................................ 16 4
Con venience closing ................................. 91
Con venience opening ................................ 91
Coolant (engine) Check le vel .......................................... 293
No tes .................................................. 353
Cooling see Climate control
Co pyright ...................................................34
Cornering light ........................................ .125
Cross Traf fic Alert .................................. .224
Crosswind Assist Function/no tes ................................... 185
Cruise control .......................................... 191
Ac tivating ............................................ 19 2
Buttons ................................................ 19 2
Calling up a speed .............................. .192
Deactivating ........................................ 19 2
Fu nction ............................................... 191
Re quirements ...................................... 19 2
Selecting ............................................. 19 2
Setting a speed ................................... 19 2 Index
435

:
Active Light Sy stem inopera‐
tive ...................................................... 368
¯ AdBlue sy stem fault Emer. op.:
max. XXX km/h Start not poss. in
XXX km ................................................ 411
¯ AdBlue sy stem fault Emer‐
ge ncy op. in XXX miles See Owner's
Manual ................................................. 411
¯ AdBlue sy stem fault Engine
st art not possible ................................ .412
¯ AdBlue sy stem fault See Own‐
er's Manual .......................................... 411
5 Add 1 litre engine oil when
next refuelling ...................................... 413
é ATTENTION ASSIST inoperative
.............................................................3 92
é ATTENTION ASSIS T:Take a
break! .................................................. 392
: Automatic driving lights inoper‐
ative .................................................... 367 Á
Change key bat teries ................. 363
J Check brake fluid le vel.............. .384
# Check brake pads See Owner's
Manual ................................................ 384
5 Check eng. oil le v.when next
re fuelling .............................................. 412
ï Check trailer hit chlock .............. 371
h Check tyre(s) .............................. 406
! Clean the fuel filter .................... .377
J Close boot separator .................. 366
ÿ Coolant Stop vehicle Switch
engine off ............................................ 376
_ Currently una vailable Camera
view restricted ..................................... 396
ç Currently unavailable Radar
sensors dirty .......................................3 95
! currently una vailable See Own‐
er's Manual ........................................ .397
÷ currently una vailable See Own‐
er's Manual ........................................ .398 5
Engine oil le vel cannot be
measured ............................................ .414
5 Engine oil le velRe duce oil le vel.. 413
5 Engine oil le velSt op vehicle
Switch engine off ................................. 413
5 Engine oil pressu reStop
Switch off engine ................................. 414
ä Fault Drive at max. 80 km/h ...... 389
6 Front left malfunction Consult
wo rkshop (e xample)............................ 360
_ Front left seat backrest not
loc ked (e xamp le).................................. 374
& inoperative Battery low ..............370
& inoperative Refuel vehicle ..........3 70
& inoperative See Owner's Man. ...370
! inoperative See Owner's Man‐
ual ....................................................... 398
÷ inoperative See Owner's Man‐
ual ....................................................... 399 Index
437

T
inoperative See Owner's Man‐
ual ....................................................... 400
G Inoperati ve................................. 401
: Intelligent Light Sy stem inoper‐
ative ....................................................3 68
Á Key not de tected (red displ ay
messa ge).............................................3 64
Á Key not de tected (white displ ay
messa ge).............................................3 64
: Left dipped beam (e xamp le) ...... .367
6 Left windowbag malfunction
Consult workshop (e xample).............. .360
¢ Lowe ring .................................... 390
: Malfunction See Owner's Man‐
ual ....................................................... 367
ð Maximum speed exceeded ......... 387
Ø ................................................... 41 0
ç Off..............................................3 86
ë Off.............................................. 389 K
Open/close soft top com‐
ple tely ................................................. 366
! Parking brake See Owner's
Manual ................................................ 380
É Please reduce speed .................. 391
Ý Please wait 48 V battery charg‐
ing ...................................................... .404
h Rectify tyre pressure .................. 406
Ø Refill Ad Blue See Owne r’s
Manual ................................................ 409
! Release parking brake ................ 383
¸ Replace air cleaner .....................377
À Replace key See Owner's Man‐
ual ...................................................... .363
Á Replace key ................................ 363
8 Reser vefuel le vel...................... .377
6 Restra int sys. malfunction Con‐
sult workshop ...................................... 360
# See Owner's Manual .................. 402
K Softtop lo wering ........................ 365 K
Softtop Operation only up to
60 km/h ............................................. 365
Ù Steering malfunction Incre ased
ph ysical ef fort See Owner's Manual ....372
Ù Steering malfunction Stop
immediately See Owner's Manual .......373
# Stop vehicle Lea veengine run‐
ning ..................................................... 403
# Stop vehicle See Owner's Man‐
ual .......................................................4 03
É Stop vehicle Vehicle too low .......3 90
ç suspended ................................. 386
: Switch off lights ......................... 368
: Switch on headla mps................. 368
Ø Top up AdBlue Emergency op.
in XXX miles See Owner's Manual .......41 0
+ Top up coolant See Owner ’s
Manual ................................................ 375
¥ Top up washer fluid .................... 375438
Index

App
lybrake todeselect Park (P)
position ...............................................3 78
App lybrake toselect D or R ................378
App lybrake toselect R ........................ 378
Au xilia rybattery malfunction .............. 380
Beginning emer gency stop .................. 388
Blind Spot Assist cur rently una vaila‐
ble See Owner's Manual ...................... 393
Blind Spot Assist inope rative ............... 393
Blind Spot Assi stnot available when
to wing a trailer See Owner's Manual ...3 93
Cannot start engine See Owner's
Manual ................................................ 404
Check tyre pressures then restart
Ru n Flat Indicator ................................ 409
Cruise control and Limiter inope ra‐
tive ...................................................... 385
Cruise control inope rative ................... 385
Cruise control off ................................ 385 Fr
ont-passenger airbag disabled See
Owner's Manual ................................... 361
Fr ont-passenger airbag enabled See
Owner's Manual ................................... 361
Hazard warning lamps malfunction‐
ing ...................................................... .369
Limi ter inoperative .............................. 386
Limiter passive .................................... 385
Mercedes me connect Services limi‐
te d See Owner's Manual ...................... 401
Mo tor can be star ted again .................4 04
N permanently active Risk of vehicle
ro lling .................................................. 379
Only select Park (P) when vehicle is
st ationary ............................................ 377
Place theke y in the mar ked space
See Owner's Manual ...........................364
PRE-SAFE inoperative See Owner's
Manual ................................................ 362
Re duce speed ...................................... 408 Re
versing not poss. Consult work‐
shop ....................................................3 79
Risk of vehicle rolling Driver door
open and transmission not in P ...........378
Ru n Flat Indicator inope rative ............. 409
Speed limit (winter tyres) XXX km/h ... 387
St op vehicle Lea veengine running
Wa itTransmission cooling ...................380
To shift out of P or N,depress brake
and start engine .................................. 378
To switch off the engine, press the
St art/ Stop button for at least 3 sec‐
onds or 3 times. .................................. 375
Tr af fic Sign Assi stcur rently una vaila‐
ble See Owner's Manual ...................... 392
Tr af fic Sign Assi stinope rative ............. 392
Tr ansmission Malfunction Stop ........... 379
Ty re press. monitor cur rently una vail‐
able .................................................... .405
Ty re press. monitor inoperative ...........405 440
Index

see
Traf fic Sign Assi st
Driving tips Driving abroad (symmetrical low
beam) .................................................. 12 2
Gene ral driving tips ............................ .156
Ru nning-in no tes ..................................1 54
Dr ow siness de tection
see ATTENTION ASSIST
DY NA MIC BODY CONT ROL
Chassis ................................................ 205
Dynamic handling cont rol sy stem
see ESP ®
(Elect ronic Stability Prog ram)
DY NA MIC SELECT .................................... 16 2
Con figuring drive program I ................. 16 3
Displ aying engine data ........................ 16 4
Displ aying vehicle data ........................ 16 4
Drive program display .......................... 16 3
Drive programs .................................... 16 2
Fu nction .............................................. 16 2
Operating (DYNAMIC SELECT switch) .............................................................1 63
Selecting the drive prog ram ............... .163 E
E10 ............................................................ 347
Easy entry feature
Fu nction/no tes .................................... 11 0
Setting .................................................. 111
Easy exitfeature
Fu nction/no tes .................................... 11 0
Setting .................................................. 111
EBD (Electronic Brake forc e Distribu‐
tion)
Function/no tes ................................... 185
ECO Assist Displaying ............................................ 16 2
Fu nction/no tes .................................... 161
ECO display Function .............................................. 16 0
ECO start/s top function ......................... 15 8
Au tomatic engine start ........................ 15 8
Au tomatic engine stop .........................1 58
Operation ............................................ 15 8
Switching off/on ................................. 16 0
Electric pa rking brake ............................ .177
App lying automatically ........................ .177 App
lying or releasing manually ............ 17 9
Emergency braking .............................. 17 9
Re leasing automatically ...................... .178
Electrical fuses see Fuses
Electromagnetic compatibility Declaration of conformity ......................24
Electronic Stability Prog ram
see ESP ®
(Electronic Stability Prog ram)
Emer gency
Fire extinguisher ................................. .305
Fir st-aid kit (so ftsided) ....................... 305
Overview of the help functions .............. 16
Re moving thewa rning triangle ............ 304
Saf etyve st .......................................... 304
Setting up thewa rning triangle .......... .305
Emer gency braking ................................. 17 9
Emer gency braking
see BAS (Brake Assi stSystem)
Emer gency engine start ......................... 322
Emer gency key
Inserting/removing ............................... 72
Locking a door .......................................78 442
Index