2018 MERCEDES-BENZ S-CLASS CABRIOLET warning

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

Handlingcharacteristics (unusual) ....... 362
HANDS-FREE ACCESS ................................ 68
Haza rdwa rning lamps ............................ .110
Head restra int .......................................... .84
Fr ont (adjusting manually) ..................... 84
Re ar (adjusting) .................................... .86
Re ar (lo wering from the front) ............... 85
Head-up Display ....................................... 217
Ad justing brightness (on-board com‐
pu ter) ................................................... 217
Ad justing display elements (on-board
compu ter) ............................................ 217
Fu nction ............................................... 218
Menu (on-board computer) .................. 217
Setting the position (on-board com‐
puter) ................................................... 217
Switching on/off ................................. 219
Using the memory function .................. .93
Headliner (care) ....................................... 339
High-beam flasher ................................... 109
High-beam flasher see Combination switch High-beam headlamps
Activating/deactivating .......................1 09
Ad aptive Highbeam Assist .................... 111
High-beam headlamps see Combination switch
Hill start assist ........................................ 173
HOLD function ......................................... 173
Ac tivating/deactivating .......................1
73
Fu ncti

on/no tes .................................... 173
Hood Function (active hood) ......................... 328
Opening/closing ................................. 328
Re setting (active hood) ........................ 328
Hotspot Setting up (Wi-Fi) ................................. 246
Hydropneumatic suspension see MAGIC BODY CONTROL
I
Identification plate Engine .................................................3 94
Re frigerant ...........................................4 01
Ve hicle ................................................ 394 Ignition
Switching on (S tart/S top button) ........ 128
Ignition key
see SmartK ey
Immobilizer ................................................ 79
Indicator lamp see Warning/indicator lamps
Individual drive prog ram
Confi guring .......................................... 136
Selecting ............................................. 136
Instrument clus ter
see Instrument display
see Warning/indicator lamps
Instrument display .................................. 208
Ad justing the lighting ........................... 211
Fu nction/no tes ................................... 208
Overview ............................................. 208
Wa rning and indicator lamps (o ver‐
view) ...................................................... 10
Wa rning/indicator lamps .................... 445
Instrument lighting .................................. 211
Intelligent Light Sy stem
Cornering light function ...................... .111
Index 47
7

Lampsee Inte rior lighting
Lamp (Instrument Display) see Warning/indicator lamps
Lane Keeping Assist
see Active Lane Keeping Assist
Language Notes ................................................... 248
Setting ................................................. 248
LA TC H-type (ISOFIX) child seat
attachment
Installing ................................................ 53
No tes ..................................................... 52
Le vel control sy stem
see AIR BODY CONTROL
see MAGIC BODY CONTROL
Light switch Overview .............................................1 08
Lighting see Lights
Lights ....................................................... 108
Ad aptive Highbeam Assist .................... 111
Ad justing the instrument lighting ......... 211 Au
tomatic driving lights ....................... 109
Combination switch............................. 109
Corne ring light function ....................... 111
Hazard warning lights .......................... 110
High-beam flasher .............................. .109
High-beam headlamp s .........................109
Light switch ......................................... 108
Low beam ............................................ 108
Pa rking lights ...................................... .108
Re ar fog light ....................................... 109
Re sponsibility for lighting sy st
ems ..
.... 108
St anding lights .................................... .108
Tu rn signal lights ................................. 109
Limited Warranty
Ve hicle .................................................. 28
Live Traf fic Information
Displaying subscri ption information .... 272
Displ aying the tra ffic map .................... 273
Displ aying traf fic incidents .................. 273
Extending a subscription ..................... 272
Issuing hazard alert s ............................2 74
Load index (tires) .................................... 377
Load-bea ring capacity (tires) .................377 Loading
Definitions .......................................... .379
Loading guidelines ....................................9 4
Loading information table ......................370
Loads Securing ................................................ 94
Locking/unlocking KEYLESS-GO .......................................... 62
Locking the doors from the inside ......... 61
Un locking and opening doors from
th e inside ............................................... 61
Low beam Swit ching on/off ................................ .108
Lu bricant addit

ives
see Additives
Lu ggage
Net hooks .............................................. 98
Securing ................................................ 94
M
MAGIC BODY CONT ROL.......................... .177
Setting ................................................. 180
Suspension .......................................... 177
Index 47
9

Parking Assist PARKTRONIC .................. 182
Ac tivating ............................................ 184
Ad justing warning tones ...................... 185
Deactivating ........................................ 184
Fu nction .............................................. 182
Side impact pr otection ........................ 183
Sy stem limitations .............................. .182
Pa rking assistance sy stems
see Active Parking Assist
Pa rking brake
see Electric parking brake
Pa rking for an extended period ..............149
Pa rking lights .......................................... .108
Pa rking position
Outside mir rors .................................... 118
St oring the position of the passenger
outside mir ror using reve rsege ar ........ 118
PA SSENGER AIR BAGstatus display
see Automatic front passenger front
airbag shutoff
Pa yload
Calculation example ............................ 372
De term ining the maximum .................. 371 Pe
destrian pr otection
see Active hood (pedestrian pr otection)
Pe rfume
see Fragrance sy stem
Pe rfume atomizer
Setting .................................................1 24
Pe rfume vial
see Fragrance sy stem
Pe riod out of use
Ac tivating/deactivating standby
mode .................................................. .150
Pe rm itted towing me thods .................. ..
.3 53
Pe rsona

lization
see User profile
Pe ts in the vehicle .....................................5 6
Phone book see Contacts
Picture form ats
see Video mode
Picture settings see Video mode PIN pr
otection
Ac tivating/deactivating .......................2 49
Plastic trim (care) ....................................3 39
Playback options Selecting ............................................. 308
POI symbols Custom ................................................ 276
Po we r closing function
Door ...................................................... 64
Tr unk lid ................................................ 66
Po we r supp ly
Switching on (S tart/S top button) ........ 128
Po we rwa sher (care) ...............................3 35
PRE-SAFE
®(anticipatory occupant
pr otection) ................................................ .47
Fu nction ................................................ 47
PRE-SAFE
®Sound ................................. 47
Re versing the measures ........................ 48
PRE-SAFE
®PLUS (anticipa tory occu‐
pant pr otection plus) ................................ 48
Fu nction ................................................ 48
Re versing the measures ........................ 48
484
Index