2020 MERCEDES-BENZ E-CLASS CABRIOLET steering

Display messages
Possible causes/consequences and M
MSolutions
Reduce speed *A
t least one tyre is overheating. The af fected tyres are displ ayed in red. At temp eratures close tothe limit value,
th e tyres are displa yed in yello w. &
WARNING Risk of an accident from driving wi thove rheated tyres
Overheated tyres can bur st. #
Reduce speed so that the tyres cool down. Ty
re pressure loss warning sy stem Display messages
Possible causes/consequences and M
MSolutions
Tyre pressure Check tyres *T
he tyre pressure loss warning sy stem has de tected a significant loss of pressure. &
WARNING Risk of an accident due toinsuf ficient tyre pressure
R The tyres can bu rst.
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.408
Display messages and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
If th e trailer hitch is swivelling: #
Wait until the ball neck has reached the operational position.
Ù
Po we rst eering warning
lamp (red) The
red po werst eering sy stem warning lamp is lit while the engine is running.
*The po wer assi stance or thesteering itself is malfunctioning. &
WARNING Risk of accident if steering capability is impaired
If th esteering does not function as intended, theve hicle's operating saf ety is jeopardised. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do
not continue driving under any circums tances. #
Consult a qualified specialist workshop. #
Notethe messages on the multifunction displa y.Engine
Wa
rning/indicator lamp
Possible causes/consequences and M MSolutions
ÿ Coolant warning lamp The
red coolant warning lamp is lit while the engine is running.
*Possible causes: R The temp erature sensor is malfunctioning 41 8
Displaymessa ges and warning/indicator lamps

Ty
re pressure moni tor Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
h Ty re pressure monitoring
sy stem warning lamp
fl ashes The
yellow tyre pressure monitor warning lamp (pressure loss/malfunction) flashes for appro ximately one minu teand
th en 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. h
Ty re pressure monitoring
sy stem warning lamp lights
up 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.
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. Display messages and
warning/indicator lamps 427

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

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

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

!
Turn on the ignition torelease
th e parking brake ................................ 384
d Vehicle is operational Switch
off ignition before exiting .................... .371
É Vehicle rising Please wait.......... .391
É Vehicle rising .............................. 391
h Warning tyre defect .................... 407
h Wheel sensor(s) missing ............ 405
K While stationar y,apply the
brake before operating the soft top .....3 65
Ø XX,X l Top up AdBlue Switch on
ignition, wait 60 sec. or eng. start
not poss. .............................................. 41 0
Ac tive Blind Spot Assi stcur rently
una vailable See Owner's Manual .........393
Ac tive Blind Spot Assi stinope rative .... 394
Ac tive Blind Spot Assi stnot available
when towing a trailer See Owner's
Manual ................................................ 394 Ac
tive bonnet malfunction See Own‐
er's Manual .......................................... 373
Ac tive Brake Assi stFunctions cur‐
re ntly limited See Owner's Manual ...... 400
Ac tive Brake Assi stFunctions limited
See Owner's Manual ............................ 401
Ac tive Dis tance Assi stavailable
again .................................................. .387
Ac tive Dis tance Assi stcur rently
una vailable See Owner's Manual .........386
Ac tive Dis tance Assi stinope rative ....... 387
Ac tive Lane Keeping Assist cur rently
una vailable See Owner's Manual .........394
Ac tive Lane Keeping Assist inopera‐
tive ...................................................... 394
Ac tive Parking Assist and
PA RKTRONIC inoperati veSee Own‐
er's Manual .......................................... 391 Ac
tive Steering Assist cur rently
una vailable due tomultiple emer‐
ge ncy stops ......................................... 388
Ac tive Steering Assist cur rently
una vailable See Owner's Manual .........387
Ac tive Steering Assist inoperative .......388
Ac tive Stop-and-Go Assist cur rently
una vailable see Owner's Manual .........388
Ac tive Stop-and-Go Assist inopera‐
tive See Owner's Manual ..................... 389
Ad aptive Highbeam Assist cur rently
una vailable See Owner's Manual .........369
Ad aptive Highbeam Assist inopera‐
tive ...................................................... 369
Ad aptive Highbeam Assist Plus cur‐
re ntly una vailable See Owner's Man‐
ual ...................................................... .369
Ad aptive Highbeam Assist Plus inop‐
erative ................................................ .369 Index
439

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