2018 MERCEDES-BENZ S-CLASS SEDAN cooling

#Press down cup holder base3inthe middle
until it engages.
#Press bo thretaining clips 2and pull the
cup holder inse rtupwar ds appr oximately
0.6 in (15 mm).
#Press button 1.
Cup holder base 3raises.
#Re mo vethe cup holder insert from there ar
armrest comple tely. Installing
the insert
* NO
TEDama getothewo oden trim
The wooden trim can be damaged byinse rt‐
ing the cup holder insert.
#Make sure that the cup holder insert
has been inser ted into there cess cor‐
re ctly.
#Make surethat cup holder base 2is in the
upper position.
#Place the cup holder insert into there cess in
th ere ar armrest such that button 1is
fa cing forw ards.
#Press the cup holder insert down.
#Press outer ring 3 ofthe cup holder insert
until the cup holder insert engages audibl y.
Switchingthe cooling or heating function for
th etemp erature-cont rolled cup holder on or
off
When the heating function is used, the me tal
inse rtof the cup holder is heated. Forth is rea‐
son, you must not reach into the cup holder
insert.
Seats and stowing 13
1

Vehicles with individual rear seats
Yo u can charge a USB device, e.g. a mobile
phone, at USB ports 1using a suitable charg‐
ing cable. The devices can be charge d with 5 V
(2.1 A) and when the ignition is switched on.
Re frigerator box
Using there frigerator box
&
WARNING Risk offire due toa co vered
ve nt grille on there frigerator box
If yo u co verth eve nt grille forth ere frigerator
box, it may overheat.
#Alw ays make sure that theve nt grille is
not co vered.
The vent grille forth ere frigerator box is in the
trunk.
The refrigerator box can bear a maximum load of
7. 7 lb (3.5 kg).
St ore only plastic bottles in the upper compart‐
ment of there frigerator box. The contents of the
bottle must be no more than 17 fl. oz. (0.5 l).
If yo u do not need touse there frigerator box for
an extended pe riod you should switch it off,
defrost it and clean it. Af ter doing so, lea vethe
lid open for a time. The
refrigerator box reduces its cooling capacity
or switches off in thefo llowing cases:
Rto o many electrical consumers are turned on
Rth est ar ter battery is not suf ficiently charge d
If th is is the case, the indicator lamps flash in
th e button toswitch there frigerator box on and
off. The cooling function will au tomatically
switch back on as soon as there is suf ficient
vo ltage.
Seats and stowing 13
7

#Vehicles with a rear bench seat or electrically
adjus table outer seats: fold down there ar
armrest.
#Pull handle 1and fold down co ver2.
#To open: pull handle 1and fold down the
co ver.
#To switch on: press button 2repeatedly
until an indicator lamp (low cooling) flashes
or two indicator lamps (high cooling) flash.
#To switch off: press button 2repeatedly
until bo thindicator lamps go out.
Re moving or in stalling there frigerator box
Re moving
#Switch off there frigerator box.
#Pull plug 2down and out.
#Unscr ew both scr ews3.
#Pull out there frigerator box.
#Close flap 1.
138
Seats and stowing

Operatingthe clima tecontro l system
Switching front clima tecontro l on/off
#Toswitch 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 fog up more quickl y.Switch off
climate control only brie fly.
Switching rear climate control on/off
#Press button 5.
% When rear climate control is switch ed off,
th e indicator lamp is activated and OFFis
shown in there ar displa y.
Activating/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:
,9HKLFOH.b &OLPDWH &RQWURO.$&
The A/C function heats, cools and dehumidifies
th eve hicle's interior air.
#Ac tivate Oor deacti vate ª the function.
Setting front climate control toautomatic
mode
In au tomatic mode, the set temp erature is regu‐
lated bythete mp erature of the dispensed air
and the air flow .
#Press theà button.
#Toswitch tomanual mode: presstheK
button.
Setting climate control in there ar toauto‐
matic mode
In au tomatic mode, the set temp erature is regu‐
lated bythete mp erature of the dispensed air
and the air flow .
#Press button 3.
Climatestyle
Climate style function
In automatic mode you can select thefo llowing
climate style settings forth e driver's and front
passenger areas:
RFO CUS: high air flow , slightly cooler setting
RMEDIUM: medium air flow ,st andard setting
RDIFFUSE: low airflow , slightly warmer and
draft-free setting
Setting the clima testyl e
Multimedia sy stem:
,9HKLFOH.b &OLPDWH &RQWURO.&OL
PDWH 0RGH
#Select )2&86, 0(',80 or',))86( .
158
Climat e control

#Toswitch on the po wer supp ly:press but‐
to n1 (USA) or 2(Canada) once.
Yo u can act ivate the windshield wiper, for
ex ample.
The po wer supp lyis switched off again if thefo l‐
lowing conditions are me t:
RYou open the driver's door.
RYo u press butto n1 (USA) or 2(Canada)
twice.
#To switch on the ignition: press button 1
(USA) or 2(Canada) twice.
The indicator lamps in the instrument clus ter
light up.
The ignition is switched off again if one of the
fo llowing conditions is me t:
RYou do not start theve hicle within
15 minutes.
RYou press butto n1 (USA) or 2(Canada)
once.
St arting theve hicle
Starting theve hicle with thest art/s top but‐
to n
Requ irements:
RThe SmartK eyis located in theve hicle and
th e SmartK eybattery is not dischar ged.
#Shift the transmission toposition jori.
#Depress the brake pedal and push button 1
(USA) or 2(Canada) once.
#Ifth eve hicle does not star t:switch off non-
essential consumers and press button 1
(USA) or 2(Canada) once.
#Ifth eve hicle still does not start and the
3ODFH WKH .H\ LQ WKH 0DUNHG 6SDFH 6HH
2SHUDWRU
V 0DQXDO display message also
appears in the multifunction display: start
th eve hicle in emer gency operation mode.
Yo u can switchoff the engine while driving by
pressing button 1(USA) or 2(Canada) for
about thre e seconds. Be sure toobser vethe
saf etyno tes under "Driving instructions".
St arting theve hicle via Remo teOnline serv‐
ices
Cooling or heating theve hicle interior before
st arting the journey
If yo ustart theve hicle via your smartphone, the
pr ev iously selecte d air conditioning adjustment
is active.
16 6
Driving and pa rking

%Ifyo u ha veforg ottenyo ur PIN, an authorized
Mercedes-Benz Cente r can deactivateyour
PIN protection foryo u. A prom
ptappears again asking whe ther you
re ally wish toreset.#Select <HV.
The multimedia sy stem is reset tothefa ctory
settings.
ENE RGIZING comfort
ENERGIZING comfort prog ram 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 seat is 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.
Multimedia sy stem 289

#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 381).
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 Danger of burn s 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 mo tor cool down before opening
th e cap.
#When opening the cap, wearglove s and
pr otective eyew ear.
#Slowly turn the cap half a turn toallow
pressure toescape.
Maintenance and care 383

Notes on brake fluid
Obser vethe no tes on operating fluids
(→page 447).
&
WARNING Risk of an accident due to
va por poc kets form ing in the brake sys‐
te m
The brake fluid cons tantly absorbs moist ure
from the air. This lo wersthe boiling point of
th e brake fluid. If the boiling point is too lo w,
va por poc kets may form inthe brake sy stem
when the brakes are applied hard.
This causes the braking ef fect to be
impaired.
#Ha ve the brake fluid rene we d at the
specified inter vals.
Ha ve the brake fluid regularly changed at a quali‐
fi ed specialist workshop.
Only use brake fluid appr ovedby Mercedes-Benz
according toMB-F reigabe or MB-Appr oval 33 1.0. Fu
rther information on brake fluid:
RIn the Mercedes-Benz Specifications for
Operating Fluids at http://be vo.mercedes-
benz.com
RAt aqu alified specialist workshop
Coolant
Note s on coolant
Obser vethe no tes on operating fluids
(
→page 447).
&
WARNING ‑ Risk of fire and injury from
antifreeze
If antifreeze comes into contact with hot
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.
Tech nical da ta451