2018 MERCEDES-BENZ S-CLASS COUPE engine

Engine
Warning/indicator lamp
Possible causes/consequences and MSolutions
;
Engine diagnosiswarning
lamp The
yellow Check Engine warning lamp is lit while the engine is running.
A malfunction has occurr ed inthe engine, theex haust sy stem or the fuel sy stem.
The emissions limit value may ha vebeen exceeded and the engine may be running in eme rgency operation mode.
In some states, legal requ irements stipulate that you must immediately consult a qualified specialist workshop as soon
as theye llow Check Engine warning lamp lights up.
#Ha ve theve hicle checked as soon as possible at a qualified specialist workshop.
#
Electrical malfunction warn‐
ing lamp The
red electri calfault warning lamp is lit.
There is a fault inthe electrics.#Obser vethe messages in the multifunction displa y.
8
Fuelreser vewarning lamp The
yellow fuel reser ve wa rning lamp lights up while driving.
There has been pressure loss in the fuel sy stem. The fuel filler cap is not closed cor rectly or the fuel sy stem is leaking.#Close the fuel filler cap.
If th e fuel filler cap has already been closed cor rectly:
#Visit a qualified specialist workshop.
458
Display messages and warning/indicator lamps

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 459

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.
460
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 461

Active Steering Assist ............................ .168
Ac tivating/deactivating .......................1 69
Ac tive Emergency Stop Assist .............. 171
Ac tive Lane Change Assi st................... 170
Displ ays in the Instrument Display ...... .172
Fu nction .............................................. 168
Sy stem limitations .............................. .168
Ad aptive cruise control
see Active Dis tance Assist DISTRONIC
Ad aptive Highbeam Assist
Fu nction ............................................... 112
Switching on/off .................................. 113
Ad ditive s.................................................. 397
Engine oil ............................................. 397
Fu el ..................................................... 397
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 Sur round
sound sy stem ...................................... 322
Burmes ter
®sur round sound sy stem ... .321
Ad justing the bass, mid- range and
treble
Burmes ter
®high-end Sur round
sound sy stem ...................................... 321
Ad justing the mid- range, treble and
bass
Burmes ter
®high-end Sur round
sound sy stem ...................................... 321
Ad justing the sound focus
Burmes ter
®sur round sound sy stem .. ..3 21
Ad justing the sound optimization
Burmes ter
®high-end Sur round
sound sy stem ...................................... 322
Ad justing treble, mid- range and bass
settings
Burmes ter
®high-end Sur round
sound sy stem ...................................... 321
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 .......................................... 40
Head air bag .......................................... 40
Ins tallation locations ............................ .40
Knee air bag .......................................... 40
Overview ............................................... 40
Pr otection ............................................. .41
Re duced pr otection .............................. .42
Side impact air bag ............................... 40
AIR BODY CONT ROL................................ 175
Setting ................................................. 176
Suspension .......................................... 175
Air dis tribution
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 465

Special servicerequirements .............. 323
ATA (anti-theft alarm system) .................. 82
Deactivating the alarm .......................... 83
Fu nction ................................................ 82
AT TENTION ASSIST ..........................191, 193
Fu nction ............................................... 191
Setting ................................................. 193
Sy stem limitations .............................. .191
At tention assistant
see ATTENTION ASSIST
Au dio mode
Ac tivating media mode ........................ 301
Connecting USB devices ..................... 304
Co pyright ............................................. 301
Information .......................................... 300
Inserting/ removing an SD card ...........3 01
Media sear ch....................................... 307
Overview ............................................. 303
Pa use and playback function .............. .304
Selecting a track ................................. 304
Selecting playba ckoptions .................. 304
Tr ack list .............................................. 304
Au thorized workshop
see Qualified specialist workshop Au
tomatic activation
Ac tivating/deactivating .......................1 97
Au tomatic distance control
see Active Dis tance Assist DISTRONIC
Au tomatic driving lights ..........................110
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 support adjustment
Setting ................................................... 89
Au tomatic mir rorfo lding function
Ac tivating/deactivating .......................1 20
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 ........................ 137B
BA S (Brake Assist Sy stem) .................... .152
Battery SmartK ey............................................... 59
Battery (vehicle) Charging .............................................. 349
Jump -star ting ...................................... 349
No tes ................................................... 347
Tr ickle charge r ..................................... 149
Belt see Seat belts
Index 467

Contacts.................................................. .281
Callin g up ............................................ 282
De leting .............................................. .284
Downloading (from mobile phone) ...... 282
Impo rting ............................................ 283
Information .......................................... 281
Making a call ...................................... .283
Na me form at ...................................... .282
Options ................................................ 283
St oring ................................................ 283
Controller Operating ............................................. 231
Con venience closing feature .................... 74
Con venience opening ................................ 73
Coolant (engine) Filling capacity .................................... 399
Levelch eck ......................................... 328
No tes .................................................. 399
Copyright Licenses ................................................ 32
Trademar ks............................................ 32
Co rnering light function ..........................112
Cr oss
Traf fic Alert .
................................... 191 Crosswind Assist
Function/no tes ................................... 155
Cruise control .......................................... 160
Buttons ................................................ 161
Callin g up a speed .............................. .161
Fu nction .............................................. 160
Re quirements: ...................................... 161
Selecting .............................................. 161
Setting a speed .................................... 161
St oring a speed .................................... 161
Switching off ........................................ 161
Switching on ........................................ 161
Sy stem limitations .............................. .160
Cup holder ............................................... 103
Ins talling/ removing (center console) ... 103
Re ar passenger compartment ............ .104
Cus tomer Assi stance Center (C AC)........ .27
Cus tomer Relations Department .............27
D
Dashboa rd
see Cockpit
Dashboard lighting see Instrument lighting Data acquisition
Vehicle .................................................. 28
Data import/export Function/no tes ................................... 244
Importing/exporting ............................ 244
Data storage
Electronic control units .........................2 8
Online services ...................................... 30
Ve hicle .................................................. 28
Date Setting the time and date automati‐
cally ..................................................... 239
Daytime running lights ........................... .113
Ac tivating/deactivating .......................1 13
Daytim eru nning lights mode
see Daytime running lights
Deacti vating the alarm (A TA).................... 83
Declaration of conformity Wireless vehicle components ................2 5
Definitions (ti res and loading) ................378
Design s
Men u(on-boar dco mp uter) .................. 214
Index 47
1

Active Parking Assist and
PA RKTRONI CInoperati veSee Opera ‐
to r's Manual ........................................ 423
Ac tive Steering Assist Cur rently
Un available See Operator's Manual .....4 24
Ac tive Steering Assist Inoperative .......4 25
Ad aptive Highbeam Assist Camera
Vi ew Restricted See Ope rator's Man‐
ual ....................................................... 447
Ad aptive Highbeam Assist Cur rently
Un available See Operator's Manual ....446
Ad aptive Highbeam Assist Inopera‐
tive ...................................................... 446
App lyBrake toShift from 'P' ............... 435
ÀAT TENTION ASSIST Inoperative ...419
ÀAT TENTION ASSIS T:Take a
Break! .................................................. 419
bAu toLamp Function Inoperati ve
............................................................. 445
Au xilia ryBattery Malfunction .............. 437 Blind Spot Assist
Currently Una vaila‐
ble See Opera tor's Manual .................. 422
Blind Spot Assist Inoperative ............... 422
$ Check Brake Fluid Le vel.............. 413
Check Coolant Le vel See Operator's
Manual ................................................ 426
4Check Engine Oil AtNext Refu‐
eling .................................................... 428
hChe ckTire s ................................. 430
¥Check Washer Fluid .................... 44
2
K Convertible Top Lo wering ........... 443
K Convertible Top Operat

ion Pos‐
sible to37 mph................................... 443
?Coolant Too Hot Stop Vehicle
Tu rn Engine Off .................................... 426
Cruise Control Canceled ..................... 425
Cruise Control Inoperati ve.................. 425
!Cur rently Una vailable See Oper‐
ator's Manual ...................................... 405 ÷Cur
rently Una vailable See Oper‐
ator's Manual ...................................... 407
K Decrease Speed ........................ .442
ÂDon't Forget Your Key................ .434
Driver's Door Open & Transmission
No t in P Risk of Vehicle Rolling Away .. 435
bExample: Check Left Low Beam ............................................................. 444
_Example: Front Left Seat Back‐
re st Not Loc ked .................................. 441
Fr ont Passenger Airbag Disabled See
Operator's Manual ...............................4 18
Fr ont Passenger Airbag Enabled See
Operator's Manual ...............................4 17
8Fu el Level Low ............................ 429
8Gas Cap Loose ............................ 428
!Inoperative See Opera tor's
Manual ................................................4 04
÷Inopera tive See Operator's
Manual ...................... .......................... 406
Index47
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