key MERCEDES-BENZ E-CLASS CABRIOLET 2020 Owner's Guide

Configuring
the multimedia sy stem as a Wi-
Fi hotspot forex tern al devices
The type of connection es tablished depends on
th e device tobe connec ted. The function must
be suppor tedby the multimedia sy stem and by
th e device tobe connec ted. The type of connec‐
tion es tablished must be selected on the multi‐
media sy stem and on the device tobe connec‐
te d. #
Select Vehicle hotspot. #
Select Connect device to vehicle hotspot .
Connecting using WPS PIN generation #
Select Connect using WPS PIN generation. #
Ente rth e PIN shown in the media display on
th e device tobe connec ted and con firm.
Connecting using WPS PIN entry #
Select Connect using WPS PIN input. #
Enterth e PIN that is shown on theex tern al
device's display on the multimedia sy stem.
Connecting using a button #
Select Connect via WPS PBC. #
Press the push button on the device tobe
connec ted (see the manufacturer's operating
instructions). #
Select Continue.
Connecting using a security key #
Select Connect device to vehicle hotspot .
A secu rity key is displa yed. #
Select theve hicle from the device tobe con‐
nec ted. The vehicle is displa yed with the
DIRECT-MBUX XXXXX network name. #
Enter the security key which is shown in the
media display on the device tobe connec ted. #
Confirm the entry.
Connecting using NFC #
Select Connect via NFC. #
Activate NFC on the mobile device (see the
manufacturer's operating instructions). #
Hold the device tobe connec ted at theve hi‐
cle's NFC inter face. #
Select Finished.
The mobile device is now connected tothe
multimedia sy stem hotspot via NFC. Generating a new security
key #
Select Vehicle hotspot. #
Select Generate security key .
A connection will be es tablished with the
newly crea ted security key. #
Tosave a security key:select Save.
When a new security key is sa ved, all existing
Wi -Fi connections are then disconnected. If
th eWi -Fi connections are being re-es tab‐
lished, the new security key must be en tere d. Na
vigation Note
s on navigation Ro
ute guidance with augmented reality &
WARNING Risk of accident and inju ryas
a re sult of distraction, incor rect depic‐
tion or wrong interpr etation of the dis‐
play
The camera image of the augmented reality
display is not suitable as a guide for driving. MBUX multimedia sy
stem 257

Key
Display messages
Possible causes/consequences and M
MSolutions
À Replace key See Owner's
Manual *O
nly a few or no authorisations remain forst arting the engine. #
Order a new digital vehicle keyst icke r from a Mercedes-Benz service centre.
Á
Replace key *T
hekey needs tobe replaced. #
Consult a qualified specialist workshop.
Á Change key batteries *T
hekey bat tery is dischar ged. #
Replace the battery (/ page73). Display messages and
warning/indicator lamps 363

Display messages
Possible causes/consequences and M
MSolutions
Á Key not detected (white dis‐
play message) *T
hekey is cur rently und etected. #
Change the location of theke y in theve hicle. #
Ifth eke y is still not recognised, place it in the slot forst arting with theke y (/ page152).
Á Key not detected (red dis‐
play messa ge) *T
hekey cannot be de tected and may no longer be in theve hicle.
The key is no lon ger in theve hicle and you swit choff the engine:
R You can no lon gerst art the engine.
R You cannot centrally lock theve hicle. #
Ensure that theke y is in theve hicle.
If th eke y de tection function has a malfunction due toast ro ng radio signal source: #
Stop theve hicle immediately in accordance with the traf fic conditions. #
Place theke y in the slot forst arting the engine with theke y (/ page152).
Place the key in the
marked space See Owner's
Manual *K
eydetection is malfunctioning. #
Change the location of theke y in theve hicle. #
Place theke y in the slot forst arting the engine with theke y (/ page152). 364
Displaymessa ges and warning/indicator lamps

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

Blind Spot Assi
st..................................... 228
Ac tivating/deactivating ...................... .231
Fu nction .............................................. 228
Sy stem limitations ...............................2 28
Blo wer
see Climate control
BlueTEC see AdBlue ®
Bonn et
Re setting (active bonnet) .................... 289
Boot lid Closing .................................................. 80
HANDS-FREE ACCESS .......................... .80
Locking separa tely ................................ .81
Opening .................................................79
Opening dimensions ............................3 54
Boot separator Closing .................................................. 84
Opening .................................................84
Brake Assi stSystem
see BAS (Brake Assi stSystem)
Brake fluid Notes .................................................. 353 Brake
forc e distribution
EBD (Elect ronic Brake forc e Distribu‐
tion) ..................................................... 185
Brakes ABS (Anti-lo ckBraking Sy stem) ........... 182
Ac tive Brake Assi st.............................. 186
Ad aptive brake lights .......................... .190
BA S (Brake Assi stSystem) .................. 182
Driving tips .......................................... 15 6
EBD (Electronic Brake forc e Distribu‐
tion) ..................................................... 185
HOLD function .................................... .204
Limi ted braking ef fect (salt-trea ted
ro ads) .................................................. 15 6
New/replaced brakepads/brake
discs .................................................... 154
Ru nning-in no tes ..................................1 54
Braking assistance see BAS (Brake Assi stSystem)
Breakdown Overview of the help functions .............. 16
To w- starting ........................................ 322
To wing away ........................................ 318
Tr ansporting theve hicle ......................3 20
Wheel change ...................................... 335 Breakdown
see Flat tyre
Buttons Steering wheel .....................................2 43 C
Calls Mercedes me ...................................... 269
Camera see 360° Camera
see Reversing camera
Car key
see Key
Car wash
see Care
Car wash (care) ....................................... 295
Car-to-X-Communication Displaying hazard warnings ................ .263
Care .......................................................... 302
360° Camera ....................................... 301
Air-water duct ...................................... 295
Car wash ............................................. 295
Carpet .................................................3 02 Index
433

St
oring a speed ................................... 19 2
Sy stem limitations ...............................1 91D
Dashboa rd
see Cockpit
Data acquisition Vehicle ................................................... 31
Data storage
Electronic control units .......................... 31
Online services ...................................... 33
Ve hicle ................................................... 31
Deactivating the ala rm(ATA ).................... 93
Dealership see Qualified specialist workshop
Declaration of conformity Electromagnetic compatibility ............... 24
Jack ...................................................... .27
TIREFIT kit ............................................. 28
Wi reless vehicle components ................24
Decorative foil (cleaning instructions) .. 297
DeNOx agent see AdBlue ® De
stination entry .................................... 260
En tering a POI or address .................... 260
De tecting inat tentiveness
see ATTENTION ASSIST
Diagnostics connection ............................28
Diesel Low outside temp eratures ...................3 48
No tes .................................................. 348
Digital Owner's Manual .............................18
Digital Vehicle Keyst icker
Locking theve hicle ................................ 76
St arting theve hicle ............................. 15 2
Unlocking theve hicle ............................76
Dinghy towing
see Tow- bar sy stem
Dipped beam Setting .................................................1 30
DIRECT SELECT le ver............................... 16 4
Engaging drive position ....................... 16 6
Engaging neutral .................................. 16 5
Engaging pa rkposition ........................ 16 6
Engaging pa rkposition automatically .. 16 6
Engaging reve rsege ar ........................ .165 Fu
nction .............................................. 16 4
Display (care) .......................................... .302
Display (MBUX multimedia sy stem)
Home screen ...................................... .249
Display (multimedia sy stem) ................ .250
Operating ............................................ 250
Display (on-board comp uter)
Displ ays on the multifunction display .. 24 5
Display message .................................... .359
Calling up (on-board computer) ........... 359
No tes .................................................. 359
Display messages ¯ - - - km/h ................................... 385
ç - - - km/h ................................... 386
È - - - km/h ................................... 385
# 12V battery See Owner's Man‐
ual ....................................................... 402
K 12V battery See Owner's Man‐
ual ....................................................... 366
Û 48 V battery See Owner's Man‐
ual ....................................................... 403 436
Index

:
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

Ty
re press. monitor inoperative No
wheel sensors .................................... .405
Ty re pressure Check tyres ...................408
Ty re(s) ove rheated ...............................4 07
Wi thout changing gear, consult work‐
shop ....................................................3 79
Display on the windscreen
see Head-up display
Distance control see Active Dis tance Assi stDISTRONIC
DI STRO NIC
see Active Dis tance Assi stDISTRONIC
Door Additional door lock ...............................74
Locking (emergency key) ...................... .78
Opening (from the inside) ......................75
Po we r closing function .......................... 78
Un locking (emer gency key) .................... 78
Un locking (from the inside) ...................75
Door cont rol panel .................................... .14
Draught stop
Care .................................................... 300 Dr
aw bar
see Tow- bar sy stem
Drive Away Assist .................................... 223
Drive Away Assist
see Pr otection against collision
Drive position Enga ging ..............................................1 66
Drive prog ram display ............................. 16 3
Drive prog rams
see DYNA MIC SELECT
Driver's seat see Seat
Driving abroad Symmetrical low beam ........................ 12 2
Driving saf ety sy stem ............................ .180
ABS (Anti-lock Braking Sy stem) ........... 182
Ac tive Brake Assi st.............................. 186
Ad aptive brake lights .......................... .190
BA S (Brake Assi stSystem) .................. 182
Cameras .............................................. 181
EBD (Electronic Brake forc e Distribu‐
tion) ..................................................... 185
ESP ®
Crosswind Assi st........................ 185ESP
®
trailer stabilisation .................... .185
Overview ............................................. 182
Ra dar and ultrasonic sensors .............. 181
Re sponsibility ...................................... 180
ST EER CONTROL ................................. 185
Driving sy stem
DY NA MIC BODY CONTROL .................. 205
Driving sy stem
see 360° Camera
see Active Blind Spot Assi st
see Active Dis tance Assi stDISTRONIC
see Active Emergency Stop Assist
see Active Lane Keeping Assist
see Active Parking Assist
see Active Speed Limit Assi st
see Active Steering Assist
see AIR BODY CONTROL
see ATTENTION ASSIST
see Blind Spot Assist
see Cruise control
see Driving saf ety sy stem
see HOLD function
see Limiter
see Parking Assist PARKTRONIC
see Reversing camera Index
441

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