2018 MERCEDES-BENZ S-CLASS COUPE key battery

Starting theve hicle in emer gency operation
mode
If th eve hicle does not start and thePlace the
Key in the Marked Space See Operator's Manual
display message appears in the multifunction
displa y,yo u can start theve hicle in emer gency
operation mode.
#Make surethat mar ked space 2is em pty.
#Re mo veSmartK ey1 from theke yring.
#Place Smart Key1 in mar ked space 2.
The vehicle will start af ter a short time.
If yo ure mo veSmartK ey1 from mar ked
space 2the engine continues running. For
fur ther vehicle starts ho wever,SmartK ey1
must be located in mar ked space 2during
th e entire journe y.
#Have SmartK ey1 checked at a qualified
specialist workshop.
If th eve hicle does not star t:
#Lea veSmartK ey1 in mar ked space 2.
#Depress the brake pedal and start theve hicle
using thest art/ stop button.
% You can also switchon the po wer supp lyor
th e ignition with thest art/ stop button.
St arting theve hicle via Remo teOnline serv‐
ices
Cooling or heating theve hicle interior before
commencing your journey
% This function is not available in all countries.
If yo ustart theve hicle via your smartphone, the
pr ev iously selecte d air conditioning adjustment
is active. Ensure
thefo llowing before starting the engine:
RThe legal stipulations in the area where your
ve hicle is par ked allow engine starting via
smartphone.
RIt is safe tostart and runth e engine where
yo ur vehicle is par ked.
RThe fuel tank is suff icientlyfilled.
RThe star ter battery is suf ficiently charge d.
St arting the vehicle
&
WARNING Risk of crushing or entrap‐
ment due tounin tentional starting of the
engine
Limbs could be crushed or trapped if the
engine is star ted unintentionally during
service or maintenance work.
#Alw ays secure the engine against unin‐
te ntional starting before car rying out
maintenance or repair work.
Re quirements:RPark position jis selected.
RThe anti- theft alarm sy stem is not activated.
13 0
Driving and pa rking

SmartKey
Displaymessages
Possible causes/consequences and MSolutions
Â
Obtain a New Key*T
he SmartK eyneeds tobe replaced.
#Visit a qualified specialist workshop.
Â
Replace Key Battery *T
he SmartK eybattery is dischar ged.
#Re place the battery .
Â
Key Not Detected (white
display message) *T
he SmartK eyis cur rently und etected.
#Change the location of the SmartK eyintheve hicle.
#Ifth e SmartK eyisstill not recognized, start the engine with the SmartK eyinthestow age compartment .
Display messages and warning/indicator lamps 433

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
3

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 36
Service Menu (on-board computer) .................. 208
Service cen ter
see Qualifi ed specialist workshop
Service inter val display
see AS SYST PLUS
Setting a speed see Cruise contro l
Setting summer time .............................. 239
Setting the da teform at .......................... 240
Setting the distance unit ........................244 Setting
thefo ot we lltemp erature
Setting ................................................ .122
Setting the map scale
see Map
Setting the sound profile
Burmes ter
®high-end Sur round
sound sy stem ...................................... 322
Shifting gears .......................................... 139
Gearshift recommendation .................. 139
Manual ................................................ 139
Short messages see Text message s
Side impact air bag ................................... 40
Side impact pr otection .......................... .179
Side windo ws............................................. 71
Closin g .................................................. 71
Closin g (all)
.................................... .
....... 71
Closin g using the SmartK ey................... 74
Con venience closing feature .................. 74
Con venience opening ............................ 73
Opening .................................................7 1
Opening (all) .......................................... 71
Opening with the SmartK ey................... 73Problem .................................................7
4
Size designation (tires) ...........................376
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 ............................................ 362
Soc ket (12 V) ............................................ 105
Fr ont center console ........................... 105
Re ar passenger compartment ............ .105
Tr unk .................................................. .106
Soft top
Care ................ ...
................................. 334
Closing (soft- top switch) ........................ 76
490
Index