2018 MERCEDES-BENZ S-CLASS COUPE cooling

Overview of climate control systems
Overview of the operating unit for automatic
climate control
The indica tor lamps in the buttons indicate that
th e cur rent function is acti vated.
1Ã Sets climate control toautomatic, left
(→page 122)
2w Setsthete mp erature, left
3K Setsthe air flow , left
4g Switches air-recirculation mode on/off
(→page 123)
5¬ Demists the windshield
6t Calls up the air conditioning menu
7¤ Switches there ar wind owheater
on/off
8Á Switches the A/C function on/off
(→page 121)
Switches there sidual heat on/off
(
→page 123)
9K Setsthe air flow ,ri ght
Aw Setsthete mp erature, right
BÃ Sets climate contro lto automatic, right
Operating the clima tecontro l system
Ac tivating/deactivating climate control
#To switch on: setthe air flow toleve l 1 or
higher using theK button.
#Toswitch off: setthe air flow toleve l 0 using
th eK button.
% If climate control is switched off, the win‐
do ws may mist up more quickl y.Switch off
climate control only brie fly.
Ac tivating/deactivating the A/C function via
the control panel
The A/C function heats, cools and dehumidifies
th eve hicle's interior air.
#Press theÁ button.
Deactivate the A/C function only briefly other‐
wise the windo wscan fog up more quickl y.
Condensation may drip from the underside of
th eve hicle when cooling mode is active. This is
not a sign that there is a malfunction.
Ac tivating/deactivating the A/C function
using the multimedia sy stem
Multimedia sy stem:
,Vehicle.b Climate Control.A/C
The A/C function heats, cools and dehumidifies
th eve hicle's interior air.
#Switch the function on Oor off ª.
Climate control 12
1

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

ENERGIZING comfort
ENERGIZING comfort program ove rview
Prog ram ove rview
Prog rams Function
Re fresh
Can maketargeted changes tothe interior climate torefresh vehicle occupants. Cooling air flow and ioniza‐
tion purify the air. The vehicle interior is illuminated with cool colors and the seats are ventilated.
Wa rmth
Can increase the comfort le vel of the occupants. The vehicle's panel, seat and steering wheel heater pro‐
duce a cozy warmth. The air is pu rified using ionization and a pleasant fragrance is released. The vehicle
interior is illuminated with warm lighting.
Vi tality
Can countera ct fatigue in mono tonous driving situations. Fast-paced music and a vitalizing massage pro‐
vide invigorating stimulation forth eve hicle occupants. The air is purified using ionization and a pleasant
fragrance is released. The vehicle interior is illuminated in a stimulating hue and the seat is ventilated.
Pleasure Can promotea positive mood in the occupants. Moderately fastmusic is pla yed and a massage program is
activated. The air is purified using ionization and a pleasant fragrance is released. The vehicle interior is
illuminated with amicable lighting.
250 Multimedia sy stem

*NO
TEEngine damage causedbyan
incor rect oil filter, incor rect oil or addi‐
tives
#Do not use engine oils or oil filters
which do not cor respond tothe specifi‐
cations explicitly prescribed forth e
service inter vals.
#Do not alter the engine oil or oil filter in
order toachie velonger change inter vals
th an prescri bed.
#Do not use additives.
#Follow the instructions in the service
inter val display rega rding the oil
ch ange.
* NO
TEDama gecaused bytopping up too
much engine oil
Ad ding too much engine oil can cause dam‐
age tothe engine or the catalytic con verter.
#Ha ve excess engine oil remo ved at a
qu alified specialist workshop.
#Tu rn cap 1counter-clockwise and remo ve
it.
#Ad d engine oil.
#Replace cap 1and turn it clockwise as far
as it will go.
#Check the oil le vel again (→page 327).
Checking coolant le vel
&
WARNING Risk of burn s from hot com‐
ponent parts in the engine compartment
Cer tain component parts in the engine com‐
partment can be very hot, e.g. the engine,
th e cooler and parts of theex haust sy stem.
#Let the engine cool down and only
to uch the component parts described
as follo ws .
&
WARNING Risk of scalding from hot
coolant
The engine cooling sy stem is pressurized,
particularly when the engine is warm. If you
open the cap, you could be scalded byhot
coolant spr aying out.
#Let the engine cool down before open‐
ing the cap.
#When opening the cap, wearglove s and
saf etygl asses.
#Open the cap slowly torelease pres‐
sure.
328 Maintenance and care

Coolant
Notes on coolant
Obser vethe no tes on operating fluids
(
→page 395).
& WARNING ‑ Risk of fire and injury from
antifreeze
If antifreeze comes into con tact wi thhot
component parts in the engine compart‐
ment, it may ignite.
#Allow the engine tocool down before
adding antifreeze.
#Make surethat no antifreeze spills out
next tothefiller opening.
#Thoroughly clean off any antifreeze
from component parts before starting
th eve hicle.
* NO
TEDama gecaused byincor rect cool‐
ant
#Only add coolant that has been pre‐
mixed with therequ ired antifreeze pro‐
te ction.
Fu rther information on coolant:
RIn the Mercedes-Benz Specifications for
Operating Fluids 310.1, e.g. online at
http://be vo.mercedes-benz.com.
RAt aqu alified specialist workshop.
* NO
TEOverheating at high outside tem‐
peratures
If an inappro priate coolant is used, the
engine cooling sy stem is not suf ficiently pro‐
te cted against overheating and cor rosion at
high outside temp eratures.
#Alw ays use coolant appr ovedby
Mercedes-Benz.
#Obser vethe instructions in the
Mercedes-Benz Specifications for Oper‐
ating Fluids 310.1.
Ha ve the coolant regularly changed at a qualified
specialist workshop.
The proportion of cor rosion inhibitor/antifreeze
concentrate in the engine cooling sy stem should
be:
Ra minimum of 50% (antifreeze pr otection
down toappr oximately -35 °F (-37 °C)).
Ra maximum of 55% (antifreeze pr otection
down to-49 °F (-45 °C)).
Coolant capacity
Mode lC apacity
S 560 15.0 US qt (14.2 l)
Note s on windshield washer fluid
Obser vethe no tes on operating fluids
(→page 395).
Te ch nical da ta399

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.
Display messages and warning/indicator lamps 437

TInoperative See Operator's
Manual................................................4 08
GInopera tive................................... 413
ÂKe yNo tDe tected (red displ ay
message )............................................ .434
ÂKe yNo tDe tected (white dis‐
play message ).................................... .433
Let fresh air into theve hicle interior.
Air Conditioning Malf. Visit Wo rk‐
shop ....................................................4 38
Lo we ring ............................................. 425
Malfunction Drive at Max. 50 mph.......4 21
bMalfunction See Operator ’s
Manual ................................................ 445
A Malfunction Service Required ....444
Max. Speed 22 mph............................4 25
Mercedes me connect Services Limi‐
te d See Operator's Manual ..................414
N Pe rm anently Active Risk of Rolling
Aw ay ................................................... 435 ÂObta
in a NewKey........................ 43 3
ëOf f.............................................. .424
Only Shift to'P' when Vehicle is Sta‐
tionary ................................................ .435
K Open/Close Con vertible Top
Comple tely .......................................... 444
FPa rking Brake See Opera tor's
Manual ......
...........................................4 10
Â

Place theKe yin the Mar ked
Space See Opera tor's Manual .............434
hPlease Cor rect Tire Pressure .......429
F Please Release Parking Brake .... 409
PRE- SAFE Inopera tive See Opera‐
to r's Manual ......................................... 414
Ra dar Sensors Dirty See Operator's
Manual ................................................ .415
ÂRe placeKeyBat tery .................... 433
Re versing Not Possible Service
Re quired .............................................. 436 Service
Required Do Not Shift Gears
Vi sit Dealer .......................................... 436
6SRS Malfunction Service
Re quired .............................................. 416
# Start Engine See Operator's
Manual ................................................ 427
K Start Engine See Operator's
Manual ................................................ 443
ÐSt eering Malfunction Drive
Carefully Service Required .................. 438
ÐSt eering Malfunction Inc reased
Ph ysical Ef fort See Opera tor's Man‐
ual ....................................................... 439
ÐSt eering Malfunction Stop
Immediately See Operator's Manual ... 439
St op
Vehicle Lea veEng
ineRunning
Wa itTransmission Cooling ...................437
#St opVehicle Lea veEngine Run‐
ning ..................................................... 428
474
Index

Remo teOnline
Cooling or heating theve hicle inte‐
ri or .......................................................1 30
St arting theve hicle ............................. 130
Re placing 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 ..................................................... 397
Re set function (multimedia sy stem) .....2 49
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 ..................................................... 50
Fu nction in an accident ......................... 34
Fu nctionality .......................................... 34
Malfunction ........................................... 34 Pr
otection ..............................................3 3
Re duced pr otection .............................. .33
Self-test ................................................. 34
Wa rning lamp ........................................ 34
Re versege ar
Selecting ............................................. 138
Rims (Care) .............................................. 336
Ro adside A
ssistance
................................. 23
Ro adside Assistance call
Mercedes-Benz mbrace
®(USA) ........... 292
Ro llaw ay protection
see HOLD function
Ro ll bar
Fu nction ................................................ 48
Ro of load .................................................. 401
Ro ute ................................................ 259, 261
Calculating .......................................... 259
Display ing destination information ...... 261
Ex tern al .............................................. .267
Selecting a type .................................. 259
Selecting an al tern ative route .. ............ 261
Selecting notifications .........................260
Selecting options ................................ 260 St
arting the automatic service sta‐
tion sear ch........................................... 261
Switching the automatic gasst ation
sear chon/off ...................................... 261
Using automatic gasst ation sear ch..... 261
Wi th intermediate destinations ............ 257
Ro ute guidance ....................................... 262
Canceling ............................................ 265
Changing direction .............................. 263
Destination reached ............................ 264
Fr om an off-road location .................... 266
Lane recommendations ....................... 263
No tes .................................................. 262
Off-road ........................... .................... 266
To an off

- ro ad destination .................. .266
Ro ute-based speed adaptation ..............166
Displ ays in the Instrument Display ...... .172
Ro ute-based speed adjustment
Setting .................................................1 67
Ru n-flat characteristics
MOExtended tires ................................ 342
488 Index