2018 MERCEDES-BENZ S-CLASS CABRIOLET display

Warning/indicator lamp
Possible causes/consequences and MSolutions
8
Fuelreser ve wa rning lamp The
yellow fuel reser vewarning lamp is lit while the engine is running.
The fuel supply has dropped into there ser verange.#Re fuel.
Display message s andwarning/indicator lamps 457

Warning/indicator lamp
Possible causes/consequences and MSolutions
?
Coolantwarning lamp The
red coolant warning lamp is lit while the engine is running.
Po ssible causes are:RThe temp erature sensor is malfunctioning
RCoolant le velto o low
RThe air supply tothera diator is obstructed
RThe radiator fan is de fective
If th ere is an additional warning tone, the coolant temp erature has exceeded the maximum permissible temp erature.
&
WARNING Danger of burn s when opening the hood
If yo u open the hood when the engine has overheated or during a fire inthe engine compartment, you could come
into contact with hot gases or other escaping operating fluids.
#Before opening the hood, allow the engine tocool down.
#Intheeve nt of a fire inthe engine compartment, keep the hood closed and call thefire service.
#Pull over and stop theve hicle safely and switch off the engine, paying attention toroad and traf fic conditions. Do
not continue driving under any circums tances.
#Obser vethe messages in the multifunction displa y.
If th e coolant temp erature display is at the lo wer end of thete mp erature scale:
#Consult a qualified specialist workshop.
458
Display messages and warning/indicator lamps

Warning/indicator lamp
Possible causes/consequences and MSolutions
Otherwise:
#Lea vetheve hicle and keep a safe dis tance from theve hicle until the engine has cooled down.
#Check the coolant le vel.
#Make sure that the air supply tothera diator is not obstructed.
#Av oiding high loads on the engine, drive on tothe nearest qualified specialist workshop. In doing so, ensure that the
coolant temp erature display remains below there d area.
Display messages and warning/indicator lamps 459

Tire s
Wa rning/indicator lamp
Possible causes/consequences and MSolutions
h
Tire pressure monitoring
sy stem warning lamp lights
up The
yellow tire pressure monitoring sy stem warning lamp (pressure loss/malfunction) is lit.
The tire pressure monitoring sy stem has de tected tire pressure loss in at least one of the tires.&
WARNING Risk of an accident due toinsuf ficient tire pressure
Ti re pressures that are too low pose thefo llowing hazards:
RThe tires may bur st, especially as the load and vehicle speed increase.
RThe tires may wearexc essively and/or une venly, which may greatly impair tire traction.
RThe driving characteristics, as well as steering and braking, may be greatly impaired.
Yo u could then lose control of theve hicle.
#Obser vethere commended tire pressure.
#Ad just the tire pressure if necessar y.
#Stop theve hicle, paying attention toroad and traf fic conditions.
#Check the tire pressure and the tires.
460
Display messages and warning/indicator lamps

Warning/indicator lamp
Possible causes/consequences and MSolutions
h
Tire pressure monitoring
sy stem warning lamp
fl ashes The
yellow tire pressure monitoring sy stem warning lamp (pressure loss/malfunction) flashes for app roxima tely one
minute and then remains lit.
The tire pressure monitoring system is malfunctioning.&
WARNING Thereis arisk of an accident if the tire pressure monitoring sy stem is malfunctioning
If th e tire pressure monitoring sy stem is malfunctioning, it is not able toissue a warning if there is pressure loss in
one or more of the tires.
Un derinflated tires ma y,forex ample, impair the driving, steering and braking characteristics.
#Ha ve the tire pressure monitoring sy stem checked at a qualified specialist workshop.
#Consult a qualified specialist workshop.
Display messages and warning/indicator lamps 461

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

Active Steering Assist ............................ .167
Ac tivating/deactivating .......................1 69
Ac tive Emergency Stop Assist .............. 171
Ac tive Lane Change Assi st.................. 169
Displ ays in the Instrument Display ...... .171
Fu nction ............................................... 167
Sy stem limitations .............................. .167
Ad aptive cruise control
see Active Dis tance Assist DISTRONIC
Ad aptive Highbeam Assist
Fu nction ............................................... 111
Switching on/off .................................. 112
Ad ditive s.................................................. 398
Engine oil ............................................ 398
Fu el ..................................................... 398
Ad ditive s (engine oil)
see Additives
Ad ditive s (fuel)
see Fuel
Ad dress book
see Contacts Ad
justing the balance/ fader
Burmes ter®high-end 3D sur round
sound sy stem ...................................... 326
Burmes ter
®sur round sound sy stem ... 325
Ad justing the bass, mid- range and
treble
Burmes ter
®high-end 3D sur round
sound sy stem ...................................... 325
Ad justing the mid- range, treble and
bass
Burmes ter
®high-end 3D sur round
sound sy stem ...................................... 325
Ad justing the sound focus
Burmes ter
®sur round sound sy stem ... 325
Ad justing the sound optimization
Burmes ter
®high-end 3D sur round
sound sy stem ...................................... 326
Ad justing treble, mid- range and bass
settings
Burmes ter
®high-end 3D sur round
sound sy stem ...................................... 325
ADS PLUS damping sy stem
see AIR BODY CONTROL Af
ter-sales service center
see ASS YST PLUS
Air bag ........................................................ 40
Fr ont air bag (driver, front passenger) ... 40
Ins tallation locations ............................ .40
Knee air bag .......................................... 40
Overview ............................................... 40
Pr otection ............................................. .41
Re duced pr otection .............................. .42
Side impact air bag ............................... 40
Wi ndow cur tain air bag .......................... 40
AIR BODY CONT ROL................................ .174
Setting ................................................. 176
Suspension .......................................... 174
Air distribution Setting (multimedia sy stem) ............... .122
Air freshener sy stem
see Frag rance sy stem
Air pressure see Tire pressure
Air suspension see AIR BODY CONTROL
Index 463

Airvents ................................................... 125
Ad justing (front) .................................. 125
Ad justing (rear) .................................... 126
Glo vebox .............................................1 26
Air vents
see Air vents
Ai r-re circulation mode ............................ 123
Airb ag
Ac tivation .............................................. 34
PA SSENGER AIR BAG indicator lamp .... .45
Alarm see Panic alarm
Alarm sy stem
see ATA (anti-theft alarm sy stem)
Alternative route
see Route
Amb ient lighting ...................................... 113
Android Auto ............................................ 292
Connecting a mobile phone ................. 293
Ending ................................................. 293
No te .................................................... 292
Overview ............................................. 292
Sound settings .................................... 293 Tr
ans ferred vehicle data ......................2 94
Animals Pets in theve hicle ................................. 56
Anti-lock braking sy stem
see ABS (Anti-lock Brake Sy stem)
Anti-skid chains
see Snow chains
Anti-theft ala rmsystem
see ATA (anti-theft alarm sy stem)
Anti-theft pr otection
Immobilizer ............................................ 79
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
occupan
t pr otection plus)
Apple CarPlay™ ....................................... 290
Connecting an iPhone
®....................... 291
Ending ................................................ .292
No tes ................................................... 291
Overview ............................................. 290 Sound settings .................................... 292
Tr
ans ferred vehicle data ......................2 94
Asht ray
Fr ont center console ............................1 01
Assistance graphic
Menu (on-boa rdcompute r) .................. 212
Assistance sy stems
see Driving saf etysy stem
ASS YST PLUS ........................................... 327
Displaying the service due date ........... 327
Fu nction/no tes ................................... 327
Non-operational times with the bat‐
te ry disconnec ted ...............................3 28
Re gular maintenance work .................. 327
Special service requ irements .............. 327
ATA (anti-theft alarm system) .................. 79
Deactivating the alarm .......................... 80
Fu nction ................................................ 79
AT TENTION ASSIST ..........................195, 197
Fu nction .............................................. 195
Setting ................................................. 197
Sy stem limitations .............................. .195
464
Index