2018 MERCEDES-BENZ S-CLASS CABRIOLET BATTERY

Displaymessages
Possible causes/consequences and MSolutions
Service Required Do Not
Shift Gears Visit Dealer *T
he transmission is malfunctioning. The transmission position can no longer be shif ted.
#When the transmission is in position h, consult aqualified specialist workshop and do not shift the transmis‐
sion position.
#Fo r all other transmission positions, park theve hicle safely.
#Consult a qualified specialist workshop or breakdown service.
d
Vehicle Operational Switch
the Ignition Off Before Exit-
ing *Y
ou are leaving theve hicle when it is in a ready-to-drive state.
#When you lea vetheve hicle, switch off the ignition and take the SmartK eywith you.
#Ifyo udo not lea vetheve hicle, switch off the electrical consumers, e.g. the seat heating. Otherwise, the12 V
battery might dischar geand it will then only be possible tostart theve hicle using a donor battery (s tarting
assis tance).
Transmission Malfunction
Stop *
The transmission is malfunctioning. The transmission shift sto position iautomaticall y.
#Pullover and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions.
#Before le aving theve hicle, apply the electric parking brake.
#Switch the transmission toposition j.
#Consult a qualified specialist workshop.
Reversing Not Possible
Service Required *T
he transmission is malfunctioning. Reversege ar can no longe r be engaged.
#Visit a qualified specialist workshop.
Display messages and warning/indicator lamps 437

Displaymessages
Possible causes/consequences and MSolutions
Stop Vehicle Leave Engine
Running Wait Transmission
Cooling *T
he transmission has overheated. Pulling away can be temp orarily impaired or not possible.
#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.
#Lea veengine running.
#Wa it until the display message disappears before pulling away.
Auxiliary Battery Malfunc-
tion *T
he auxiliary batteryforth e transmission is no longer being charge d.
#Visit a qualified specialist workshop.
#Un tilthen, alw ays manually set the transmission toposition jbefore youswit choff the engine.
#Before leaving theve hicle, apply the electric parking brake.
Air Conditioning Malfunc-
tion See Operator's Manual *O
peration of the climate control sy stem is temp orarily restricted. Air flow and fresh air supply are set toautomatic
mode.
#Ha ve the climate control sy stem checked at a qualified specialist workshop.
438
Display messages and warning/indicator lamps

1,2, 3 ...
12 V battery ............................................. 353
Re placing ............................................ 353
12 V sock et
see Soc ket (12 V)
360° Camera ........................................... 187
Assigning as a favo rite ......................... 190
Care .................................................... 338
Fu nction .............................................. 187
Selecting a view ................................... 190
A
A/C function Activating/deactivating (multimedia
sy stem) ................................................ 121
Switching on/off (control panel) .......... 121
ABS (Anti-lock Brake Sy stem) ................ .151
Ac celeration
see Kickdown
Ac cess data
Editing ................................................ .299
Setting ................................................. 298 Ac
oustic locking verification signal
Ac tivating/deactivating ......................... 58
Ac tive Blind Spot Assi st......................... 202
Ac tivating/deactivating .......................2 04
Brake application ................................. 203
Fu nction .............................................. 202
Sy stem limitations .............................. .202
Ac tive Brake Assi st
Fu nction/no tes ................................... 155
Setting ................................................. 159
Ac tive Di stance Assist DI STRONIC........ 162
Ac tive Emergency Stop Assist .............. 171
Ac tive Lane Change Assi st.................. 169
Callin g up a speed .............................. .163
Display s inthe Instrument Display ...... .171
Fu nction .............................................. 162
Increasing/decreasing speed ..............1 63
Re quirements ...................................... 163
Ro ute-based speed adap tation ............1 66
St eering wheel buttons ........................ 163
St oring a speed ... ................................
163
Sw

itching off/deacti vating .................. 163
Switching on/activating ...................... 163
Sy stem limitations .............................. .162 Ac
tive Eme rgency Stop Assist ................ 171
Ac tive hood (pedestrian pr otection) ...... 328
Me thod of operation ............................3 28
Re setting ............................................. 328
Ac tive Lane Change Assi st
Ac tivating/deactivating .......................1 71
Fu nction .............................................. 169
Ac tive Lane Keeping Assist .................... 205
Fu nction .............................................. 205
Sensitivity (function/no tes) ................. 207
Setting the sensitivity .......................... 207
Switching on/off ................................. 206
Sy stem limitations .............................. .205
Ac tive Parking Assist .............................. 190
Cr oss Traf fic Alert ................................ 195
Drive AwayAssist ................................ 194
Exiting a pa rking space ........................ 193
Fu nction .............................................. 190
Pa rking ................................................ 192
Sy stem limitations .............................. .190
Ac tive Speed Limit Assi st............... 165, 199
Displ ay................................................. 165
Fu nction .............................................. 165
Setti
ng ................................................. 199
462
Index

Attention assistant
see ATTENTION ASSIST
Au dio mode
Ac tivating media mode ........................ 305
Connecting USB devices ..................... 308
Co pyright ............................................. 305
Information .......................................... 304
Inserting/ removing an SD card ...........3 05
Media searc h ....................................... 311
Overview ............................................. 307
Pa use and playback function .............. .308
Selecting a track ................................. 308
Selecting playba ckoptions .................. 308
Tr ack list .............................................. 308
Au thorized workshop
see Qualified specialist workshop
Au tomatic activation
Ac tivating/deactivating .......................2 01
Au tomatic distance control
see Active Dis tance Assist DISTRONIC
Au tomatic driving lights .........................109
Au tomatic engine start (ECO start/
sto p function) .......................................... 134 Au
tomatic front passen ger airbag
shu toff ........................................................ 43
Fu nction of the automatic front
passenger airbag shutoff ....................... 43
Au tomatic front passen ger front air
bag shu toff ................................................ 43
Au tomatic front passen ger front air‐
bag shu toff ................................................ 45
PA SSENGER AIR BAG indicator lamp .... .45
Au tomatic lateral supp ort adjustme

nt
Setting ................................................... 86
Au tomatic mir rorfo lding function
Ac tivating/deactivating ........................ 119
Au tomatic transmission
DIRECT SELECT le ver ........................... 137
Drive program display .......................... 136
Drive programs .................................... 136
DY NA MIC SELECT switch .................... 136
Engaging drive position ....................... 138
Engaging reve rsege ar ........................ .138
Kickdown ............................................. 140
Manual gearshifting ............................ .139
Selecting park position ........................ 138
Shifting toneutral ................................ 138 St
eering wheel paddle shif ters ............ 139
Tr ansmission position display .............. 137
Tr ansmission positions ........................ 137
B
BA S (Brake Assist Sy stem) .................... .151
Battery SmartK ey............................................... 59
Battery (vehicle) Charging .............................................. 350
Jump -star ting ...................................... 350
No tes .................................................. 348
Belt see Seat belts
Blind Spot Assist .....................................2 02
Ac tivating/deactivating .......................2 04
Fu nction .............................................. 202
Sy stem limitations .............................. .202
Blue tooth
®
Ac tivating/deactivating .......................2 44
Setting up an Internet connection ....... 298
Settings ............................................... 244
Switching profile (DUN/PAN) .............. 299
Index 465

Active Steering Assist Cur rently
Un available See Operator's Manual .....4 25
Ac tive Steering Assist Inoperative .......4 26
Ad aptive Highbeam Assist Camera
Vi ew Restricted See Ope rator's Man‐
ual ....................................................... 445
Ad aptive Highbeam Assist Cur rently
Un available See Operator's Manual ....445
Ad aptive Highbeam Assist Inopera‐
tive ...................................................... 444
App lyBrake toShift from 'P' ............... 436
ÀAT TENTION ASSIST Inoperative ... 420
ÀAT TENTION ASSIS T:Take a
Break! .................................................. 420
bAu toLamp Function Inoperati ve
............................................................. 444
Au xilia ryBattery Malfunction .............. 438
Blind Spot Assist Currently Una vaila‐
ble See Opera tor's Manual .................. 423
Blind Spot Assist Inoperative ............... 423$
Check Brake Fluid Le vel.............. 414
Check Coolant Le vel See Operator's
Manual ................................................ 427
4Check Engine Oil AtNext Refu‐
eling .................................................... 429
hChe ckTire s ................................. 431
¥Check Washer Fluid .................... 443
?Coolant Too Hot Stop Vehicle
Tu rn Engine Off .................................... 427
Cruise Control Canceled ..................... 426
Cruise Contro
l Inoperati ve.................. 426
!Cur rently Una vailable See Oper‐
ator's Manual ...................................... 406
÷Cur rently Una vailable See Oper‐
ator's Manual ...................................... 408
ÂDon't Forget Your Key................ .435
Driver's Door Open & Transmission
No t in P Risk of Vehicle Rolling Away .. 436
bExample: Check Left Low Beam ............................................................. 443 _Example:
Front Left Seat Back‐
re st Not Loc ked .................................. 442
Fr ont Passenger Airbag Disabled See
Operator's Manual ...............................4 19
Fr ont Passenger Airbag Enabled See
Operator's Manual ...............................4 18
8Fu el Level Low ............................ 430
8Gas Cap Loose ............................ 429
!Inoperative See Opera tor's
Manual ................................................4 05
÷Inopera tive See Operator's
Manual ................................................ 407
TInope rative See Operator's
Manual ................................................ 409
GInope rative ................................... 414
ÂKe yNo tDe tected (red displ ay
message )............................................ .435
ÂKe yNo tDe tected (white dis‐
play message ).... ...
.............................
.434
Index 47
1

Replacing the battery (vehicle)
see 12V battery
Re placing the vehicle battery
see 12V battery
Re porting malfunctions releva nt to
saf ety .......................................................... 27
Re scue card ............................................... 28
Re ser ve
Fu el ..................................................... 398
Re set function (multimedia sy stem) .....2 53
Re sidual heat ...........................................1 23
Re storing (factory settings)
see Reset function (multimedia sy stem)
Re stra int sy stem ...................................... .33
Childr en,Notes on how totrave l
safely ..................................................... 49
Fu nction in an accident ......................... 34
Fu nctionality .......................................... 34
Malfunction ........................................... 34
Pr otection ............................................. .33
Re duced pr otection .............................. .33
Self-test ................................................. 34
Wa rning lamp ........................................ 34 Re
versege ar
Selecting ............................................. 138
Rims (Care) .............................................. 338
RO AD SURFA CE SCAN
Multifunction camera .......................... 179
Ro adside Assistance ................................. 23
Ro adside Assistance call
Mercedes-Benz mbrace
®(USA) ........... 296
Ro llaw ay protect
ion
see HOLD function
Ro ller sunblind
Pa noramic roof ...................................... 76
Re ar wind ow.......................................... 71
Ro of load .................................................. 402
Ro ute ................................................ 263, 265
Calculating .......................................... 263
Display ing destination information ...... 265
Ex tern al .............................................. .271
Selecting a type .................................. 263
Selecting an al tern ative route .. ...........2 65
Selecting notifications ......................... 264
Selecting options ................................. 264 St
arting the automatic service sta‐
tion sear ch.......................................... 265
Switching the automatic gasst ation
sear chon/off ...................................... 265
Using automatic gasst ation sear ch.... 265
Wi th intermediate destinations ............ 261
Ro ute guidance ....................................... 266
Canceling ............................................ 269
Changing direction .............................. 267
Destination reached ............................ 268
Fr om an off-road location .................... 270
Lane recommendations ....................... 267
No tes .................................................. 266
Off-road ............................................... 270
To an off- road destination ...
...............
.270
Ro ute-based speed adaptation ..............166
Displ ays in the Instrument Display ...... .171
Ro ute-based speed adjustment
Setting .................................................1 67
Ru n-flat characteristics
MOExtended tires ................................ 343
486 Index

Selecting agear
see Shifting gears
Selecting a POI see De stination ent ry
Selecto r lever
see DIRECT SELECT le ver
Self-test Automatic front passenger front air‐
bag shutoff ............................................ 45
Sensors (Care) .........................................3 38
Service Menu (on-board computer) .................. 212
Service center see Qualified specialist workshop
Service inter val display
see AS SYST PLUS
Setting a speed see Cruise contro l
Setting summer time ..............................243
Setting the da teform at .......................... 244
Setting the distance unit ........................248 Setting
thefo ot we lltemp erature
Setting ................................................ .122
Setting the map scale
see Map
Setting the sound profile
Burmes ter
®high-end 3D sur round
sound sy stem ...................................... 326
Shifting gears .......................................... 139
Gearshift recommendation .................. 139
Manual ................................................ 139
Short messages see Text message s
Side impact air bag ................................... 40
Side impact pr otection .......................... .183
Side windo ws............................................. 72
Closing .................................................. 72
Closin g using
the Smart
Key ................... 74
Con venience closing feature .................. 74
Con venience opening ............................ 73
Opening .................................................7 2
Opening with the SmartK ey................... 73
Problem .................................................7 4
Size designation (tires) ...........................377 Sliding sunroof
MAGIC SKY CONTROL (function) ........... 78
MAGIC SKY CONTROL (operating) .........7 8
SmartK ey................................................... 57
Battery .................................................. 59
Energy consump tion .............................. 58
Fe atures ................................................ 57
Ke yring attachment .............................. 59
Mechanical key ...................................... 59
Overvie w.............................................. .57
Pa nic alarm ........................................... 58
Problem ................................................. 60
Unlocking setting .................................. 58
Smartphone see Android Auto
see Apple CarPlay™
see Telephone
Snow chains ............................................ 363
Soc ket (12 V) ............................................ 102
Fr ont center console ........................... 102
Re ar passenger compartment ............ .102
Tr unk .................................................. .103
Software update Impor tant sy stem updates .................. 252
488
Index