2018 MERCEDES-BENZ E-CLASS CABRIOLET battery

Display messages
Possible causes/consequences and M
MSolutions
Á Change key batteries *T
hekey bat tery is dischar ged. #
Replace the battery (→ page74).
Á
Pl ace the key in the
marked space See Owner's
Manual *T
hekey de tection function is malfunctioning. #
Change the location of theke y in theve hicle. #
Start theve hicle with theke y in the slot (→ page159).
À
Replace key See Owner's
Manual *
Ve hicles with a digital vehicle key:only a few or no authorisations remain forst arting the engine. #
Make sure that the internet connection is not limited bycer tain mobile phone settings. #
Open the Mercedes me connect http://www.mercedes.me and call up the digital vehicle key service. #
Deactivate the service firs t and then activate it again. #
Ifth e display message still appears, con tact the Mercedes-Benz Cus tomer Assis tance Center (C AC).
Ve hicles with a digital vehicle keyst icke r:on lyafe w or no authorisations remain forst arting the engine. #
Order a new digital vehicle keyst icke r from a Mercedes-Benz Service Centre or at http://www.mercedes-
benz.com/connect. 514
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
& inoperative Refuel vehicle *T
here is too little fuel in the fuel tank. The stationary heater cannot be swit ched on. #
Refuel theve hicle.
&
inoperative Battery low *T
he on-board electrical sy stem voltage is too lo w.
The stationary heater has swit ched itself off. #
Drive for an extended pe riod until the battery has reached a suf ficient charge leve l again. Soft
top Display messages
Possible causes/consequences and M
MSolutions
K 12 V battery See Owner's
Manual *T
he on-board electrical sy stem voltage is too lo w. #
Start the engine.
K *T
he soft top is not loc ked. If you drive at speeds of more than 60 km/h you cannot open or close the soft top. #
Do not drive at speeds greater than 60 km/h. #
Fully open or close the soft top. Display messages and
warning/indicator lamps 521

1,
2, 3 ...
4MATIC ..................................................... 173
Fu nction ............................................... 173
12 V battery
see Battery (vehicle)
12 V so cket
see Soc ket (12 V)
48 V on-board electrical sy stem
Operating saf ety .................................... 21
360° Camera .......................................... .225
Fu nction .............................................. 225
Opening the camera co ver (r eve rsing
camera) .............................................. .228
Selecting a view .................................. 228
Setting favo urites ................................ 229
Swit ching automatic operation
on/off (r eversing camera) .................. .228 A
A/C function Activating/deactivating (multimedia
sy stem) ................................................ 14 5
Switching on/off (control panel) ......... 14 5ABS (Anti-lock Braking Sy
stem) ............ .187
Ac celeration
see Kickdown
Ac cess data
Editing (Blue tooth®
) .............................3 59
Setting (Blu etoo th®
) ............................ 358
Ac cident and breakdown manage‐
ment
Mercedes me connect ........................ .352
Ac oustic locking verification signal
Ac tivating/deactivating ......................... 73
Ac tivating/deactivating automatic
vo lume adjustment
Burmes ter®
sur round sound sy stem ... 390
Ac tive Blind Spot Assi st......................... 239
Ac tivating/deactivating ...................... .242
Brake application ................................. 24 0
Fu nction .............................................. 239
Sy stem limitations ...............................2 39
Tr ailer operation .................................. 24 0
Ac tive bonn et(pedestrian pr otection) .. 392
Operation ............................................ 392
Re setting ............................................. 392 Ac
tive Brake Assi st
Fu nction/no tes ................................... 19 3
Setting ................................................. 197
Ac tive Di stance Assist DISTRO NIC........ 202
Ac tive Emergency Stop Assist .............. 211
Ac tive Lane Change Assi st................... 210
Calling up a speed .............................. .204
Displ ays in the instrument display .......2 12
Fu nction .............................................. 202
Increasing/decreasing speed .............. 204
Re quirements: .................................... .204
Ro ute-based speed adap tation ........... .206
Selecting ............................................. 204
St eering wheel buttons ....................... 204
St oring a speed ................................... 204
Switching off/deactivating .................. 204
Switching on/activating ......................2 04
Sy stem limitations ...............................2 02
Ac tive Eme rgency Stop Assist ................ 211
Ac tive headlamps .................................... 13 0
Ac tive Lane Change Assi st..................... 210
Ac tivating/deactivating ........................ 211
Fu nction ............................................... 210540
Index

Anti-theft pr
otection
Ad ditional door lock ...............................76
Immobiliser ........................................... 96
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™ ....................................... 346
Connecting an iPhone ®
....................... 347
Ending .................................................3 47
No tes ................................................... 347
Overview ............................................. 346
Sound settings .................................... 347
Tr ans ferred vehicle data ......................3 49
Ashtr ay
Fr ont centre console ........................... 12 2
Re ar passenger compartment ............ .122
Assistance sy stems
see Driving saf ety sy stem Assistant display
Menu (on-board computer) .................. 257
ASS YST PLUS ........................................... 391
Battery disconnection pe riods .............3 92
Displ aying the service due date ........... 391
Fu nction/no tes ................................... 391
Re gular maintenance work .................. 391
Special service requ irements .............. 391
ATA (anti-theft ala rmsystem) .................. 96
Deactivating the alarm .......................... 97
Fu nction ................................................ 96
Fu nction of interior pr otection ............... 98
Priming/deactivating interior pr otec‐
tion ........................................................ 98
Priming/deactivating tow- aw ay pro‐
te ction ................................................... 98
To w- aw ay protection function ................97
AT TENTION ASSI ST......................... 235, 236
Fu nction .............................................. 235
Setting ................................................. 236
Sy stem limitations ...............................2 35
At tention assistant
see ATTENTION ASSIST Au
dio mode
Connecting USB devices ..................... 368
Co pyrights ...........................................3 65
Information .......................................... 364
Inserting/removing an SD card ........... 366
Media sea rch ....................................... 371
Overview ............................................. 367
Pa use and playback function .............. .368
Selecting a track ................................. 368
Selecting playba ckoptions .................. 368
Switching on media mode ...................3 66
Tr ack list .............................................. 368
Au thorised workshop
see Qualified specialist workshop
Au tomatic distance control
see Active Dis tance Assi stDISTRONIC
Au tomatic driving lights .........................12 8
Au tomatic engine start (ECO start/
st op function) .......................................... 16 3
Au tomatic engine stop (ECO start/
st op function) .......................................... 16 3 Index
543

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 .......................................... 40, 42
Fu nction of the automatic front
passenger front airbag deactivation
sy stem ................................................... 40
PA SSENGER AIR BAG indicator lamp .... .42
Au tomatic mir rorfo lding function
Ac tivating/deactivating ...................... .141
Au tomatic transmission
DIRECT SELECT le ver ........................... 16 9
Drive program display .......................... 16 8
Drive programs .................................... 167
DY NA MIC SELECT switch ..................... 167
Engaging drive position ....................... 17 0
Engaging neutral .................................. 17 0
Engaging pa rkposition ........................ 17 0
Engaging reve rsege ar ........................ .170
Kickdown ............................................. 172
Manual gear changing .......................... 171
St eering wheel gearshift paddles ........ .171
Tr ansmission position display .............. 16 9Tr
ansmission positions ........................ 16 9
Axle load Perm issible .......................................... 457
Tr ailer operation .................................. .471 B
Bag hook ................................................... 11 8
Ball ne ck
Fo lding out/in .................................... .246
BA S (Brake Assist Sy stem) .................... .188
Battery Cha rging (Remo teOnline) .................... 16 0
Ke y ........................................................ .74
Re mo tecontrol (s tationary heater) ...... 151
Battery see Battery (vehicle)
Battery (vehicle) ...................................... 425
Charging .............................................. 424
Charging (Remo teOnline) .................... 16 0
No tes .................................................. 420
No tes (s tarting assis tance and
ch arging) ............................................ .422
Re placing ............................................ 425 St
arting assis tance .............................. 424
Belt see Seat belt
Bic ycle rack
Tr ailer operation .................................. 24 9
Blind Spot Assi st..................................... 239
Ac tivating/deactivating ...................... .242
Fu nction .............................................. 239
Sy stem limitations ...............................2 39
Blo wer
see Climate control
BlueTEC see AdBlue ®
Blue tooth ®
............................................... 292
Information .......................................... 292
Setting up an Internet connection ....... 358
Switching on/off ................................. 292
Switching profile (DUN/PAN) .............. 358
Blue tooth ®
audio
Ac tivating ............................................ .376
De-authorising (de-regis tering) the
device .................................................. 376
Information ..........................................3 74544
Index

Display content
Setting the additional value range ....... 255
Displ aymessage ...................................... 472
Calling up (on-board co mputer) .......... .472
No tes ................................................... 472
Display messages ¯ - - - km/h .................................. .493
ç - - - km/h ................................... 492
È - - - km/h ................................... 494
#12 V battery See Owner's Man‐
ual ....................................................... 498
K 12V battery See Owner's Man‐
ual ....................................................... 521
#48 V battery See Owner's Man‐
ual ....................................................... 500
Ac tive Blind Spot Assi stcur rently
una vailable See Owner's Manual .........496
Ac tive Blind Spot Assi stinope rative .... 492
Ac tive Blind Spot Assi stnot available
when towing a trailer See Owner's
Manual ................................................ 487 Ac
tive bonnet malfunction See Own‐
er's Manual .......................................... 517
Ac tive Brake Assi stFunctions cur‐
re ntly limited See Owner's Manual ...... 485
Ac tive Brake Assi stFunctions limited
See Owner's Manual ........................... 483
Ac tive Dis tance Assi stavailable
again .................................................. .493
Ac tive Dis tance Assi stcur rently
una vailable See Owner's Manual .........493
Ac tive Dis tance Assi stinope rative ...... 493
Ac tive Lane Keeping Assist Camera
view restricted See Owner's Manual ... 495
Ac tive Lane Keeping Assist cur rently
una vailable See Owner's Manual .........489
Ac tive Lane Keeping Assist inopera‐
tive ...................................................... 490
bAc tive Light Sy stem inoperative .. 523Ac
tive Parking Assist and
PA RKTRONIC inoperati veSee Own‐
er's Manual ......................................... 495
Ac tive Steering Assist cur rently
una vailable See Owner's Manual .........488
Ac tive Steering Assist inoperative .......487
Ad aptive Highbeam Assist Plus Cam‐
era view restricted See Owner's
Manual ................................................ 525
Ad aptive Highbeam Assist Plus cur‐
re ntly una vailable See Owner's Man‐
ual ...................................................... .525
Ad aptive Highbeam Assist Plus inop‐
erative ................................................ .524
¯ AdBlue sy stem fault Engine
st art not possible ................................ 505
¯ AdBlue sy stem fault Perf.
re duced in XXX km See Owner's
Manual ................................................ 504 550
Index

¯
AdBlue sy stem fault Perf.
re duced: XXX mph No start in XXX
miles .................................................. .505
¯ AdBlue sy stem fault See Own‐
er's Manual ........................................ .504
4Ad d 1 litre engine oil when next
re fuelling ............................................. 503
Air conditioning Malfunction See
Owner's Manual .................................. 520
Apply brake todeselect Park (P)
position ...............................................5 07
App lybrake toselect R ....................... 508
ÀAT TENTION ASSIST inoperative ... 492
ÀAT TENTION ASSIS T:Take a
break! .................................................. 488
bAu tomatic driving lights inoper‐
ative .................................................... 524
Au xilia rybattery malfunction .............. 508
Beginning emer gency stop .................. 484 Blind Spot Assist cur
rently una vaila‐
ble See Owner's Manual ...................... 494
Blind Spot Assist inope rative ............... 488
Blind Spot Assi stnot available when
to wing a trailer See Owner's Manual ...4 91
Cann otstart engine See Owner's
Manual ................................................ 498
ÁChan gekey bat teries ...................5 14
J Check brake fluid le vel................ 477
Check brake pads See Owner's Man‐
ual ...................................................... .486
4Che ckeng. oil le v.when next
re fuelling ............................................. 503
ïChe cktrailer hitch lo ck(white
display message) .................................5 18
Check tyre pressures then restart
Ru n Flat Indicator ................................. 512
h Check tyre(s) .............................. .510
! Clean the fuel filter ...................... 497
J Close boot separator .................. 522 K
Convertible Top Operation pos‐
sible to60 km/h ................................. 522
?Coolant Stop vehicle Switch
engine off ............................................ 499
Cruise contro l and Limiter inope ra‐
tive ...................................................... 494
Cruise control inope rative ................... 494
Cruise control off ................................ 493
!cu rrently unavailable See Own‐
er's Manual .......................................... 479
÷ currently una vailable See Own‐
er's Manual .......................................... 473
5 Engine oil le vel cannot be
measured ............................................ 501
4Engine oil le velRe duce oil le vel...5 01
4 Engine oil le velSt op vehicle
Switch engine off ................................. 501
4Engine oil pressure Stop Switch
off engine ............................................ 502 Index
551

ÛPlease
wait Charging high- volt‐
age battery .......................................... 500
PRE- SAFE inoperati veSee Owner's
Manual ................................................ 483
Ra dar sensors dirty See Owner's
Manual .................................................4 78
_ Rear left seat backrest not
loc ked (Example) .................................. 51 5
h Rectify tyre pressure ....................51 0
Re duce speed ...................................... 512
Ø Refill Ad Blue Eng. start not pos‐
sible .................................................... 504
ØRe fill Ad Blue See Owne r’s Man‐
ual .......................................................5 04
!Re lease parking brake .................476
¸ Replace air cleaner ...................... 497
ÀRe placekey See Owner's Man‐
ual ........................................................ 514
Á Replace key ................................ .513
8 Reser vefuel le vel........................ 500 6Re
stra int sys. malfunction Con‐
sult workshop ...................................... 486
Re versing not poss. Consult work‐
shop ....................................................5 07
Risk of vehicle rolling Driver door
open and transmission not in P ...........507
Ru n Flat Indicator inope rative .............. 512
# See Owner's Manual ................... 496
Speed limit (winter tyres) XXX km/h ... 494
ÐSt eering malfunction Incre ased
ph ysical ef fort See Owner's Manual .....516
Ð Steering malfunction Stop
immediately See Owner's Manual ........516
St op vehicle Lea veengine running
Wa itTransmission cooling ...................506
#St opvehicle Lea veengine run‐
ning ..................................................... 497
#St opvehicle See Owner's Man‐
ual .......................................................4 98
ÉSt opvehicle Vehicle too low ........ 491 çsuspended
..................................4 93
bSwitch off lights .......................... 523
bSwitch on headla mps.................. 524
To shift out of P or N,depress brake
and start engine .................................. 507
K Top lo wering ............................... 522
ØTo p upAdBlue Perf.re duced in
XXX miles See Owner's Manual ...........506
Ø Top up AdBlue Perf.re duced:
XXX km/h Nostart in XXX km ............ 505
To p up coolant See Owner ’sManual ... 497
¥To p upwasher fluid ...................... 51 8
Tr af fic Sign Assi stCamera view
re stricted See Owner's Manual ........... 490
Tr af fic Sign Assi stcur rently una vaila‐
ble See Owner's Manual ...................... 489
Tr af fic Sign Assi stinope rative ............. 488
ïTr ailer coupling extending… .........51 5
Tr ansmission Malfunction Stop ........... 506 Index
553