2021 MERCEDES-BENZ S-CLASS SALOON LONG air condition

B
à Sets climate control toautomatic mode,
leT (/ page 192)
C I Reduces the air0ow or switches o. cli-
mate control (/ page 191)
% The climate bar is visible even when theve hi-
cle is par ked or the air conditioning is
switched o. (/ page 191).
% The availability of individual functions is coun-
try and equipment-dependent.
% Vehicles with Dis tance Assist DISTRONIC: if
Distance Assist DISTRONIC inter venes, the
climate bar display on the central display will
be reduced. Ov
Ov
er
ervie
vie w of t
w of t he r
he rear oper
ear oper ating unit
ating unit 1
Sets air dist ribution tothe centre and side air
ve nts in there ar passen ger compartment, leT
2 Sets thete mp erature in there ar passen ger
compartment, leT
3 Sets the air0ow in there ar passen ger com-
partment, leT, or switches climate control
on/o. (/ page 191) 4
Switches climate control on/o.
(/ page 191)
or switches residual heat on/o.
(/ page 194)
5 Sets the air0ow in there ar passen ger com-
partment, right, or switches climate control
on/o. (/ page 191)
6 Sets thete mp erature in there ar passen ger
compartment, right
7 Sets air distribution tothe centre and side air
ve nts in there ar passen ger compartment,
ri ght
8 Sets rear climate cont rolto automatic mode,
ri ght
9 Sets the air distribution totheright rear foot-
we llve nts
A Synchronisation is activated (/ page 193)
B Sets the air distribution tothere ar leT foot-
we llve nts
C Sets rear climate cont rolto automatic mode,
leT
The settings forth e second row of seats can be
con/gured via there ar operating unit, the multi- 190 190
Climate control

media system (/
page 193) orthe MBUX rear
ta blet depending on theve hicle's equipment. Oper
Oper
ating t
ating t he climat
he climat e contr
e control syst
ol system
em Switc
Switc
hing climat
hing climat e contr
e control
olon/o.
on/o. Switc
Switc
hing on climat
hing on climat e contr
e control
ol #
Set the air0ow toleve l 1 or higher via Jon
th e climate bar on the central display
or #
Press Ã, s,ror±.
Switc
Switc hing
hingo.
o.climat
climat e contr
e contr ol
ol #
Set the air0ow toleve l 0 via Ionthe cli-
mate bar on the central display
or #
Press j.
If climate control is switched o., the windo ws
may mist up more quickl y.Switch climate control
o. only brie0 y.
% Ifth e climate control is switched o. via
j, OFF OFFwill be shown on the climate bar. Switc
Switc
hing climat
hing climat e contr
e control
olon/o.
on/o. via t
via the r
he rear oper-
ear oper-
ating unit
ating unit Switc
Switc
hing on
hing on #
Press button 4.
or #
Set the air0ow toleve l 1 or higher using but-
to ns 3 and 5.
or #
Press buttons 2,6,8orC.
Switc
Switc hing
hingo.
o. #
Press button 4.
or #
Set the air0ow toleve l 0 using buttons 3and
5.
% Ifre ar climate cont rol is switched o. via but-
to n4, OFF OFF will be show n onthere ar displ ay. Calling up t
Calling up t
he air conditioning menu using t
he air conditioning menu using t he cli-
he cli-
mat
mat e bar
e bar The air conditioning menu can be called up via
the
air conditioning line. The air conditioning line is alw
ays shown on the lo wer edge of the central
displa y. #
Select theClimate menu entry inthe air con-
ditioning line.
The First row of seats menu is opened.
Jum Jum ping dir
ping dir ectl
ectly t
y to t
o t he
he Air quality menu
menu #
Select theG /ne particle status display in
th e climate bar.
The Air quality menu is opened. An animation
of the automatic air cleaning taking place is
shown.
% The /ne particle status displ ayis on the home
screen next tothete mp erature display on the
ri ght and it informs you of the cur rent particu-
late le vels inside and outside of theve hicle.
The measurement values are shown with the
µg/m 3
units (microg rammes per cubic
metre).
St rong acceleration aTer longer parking periods
will lead toa de tach ment of the dust co vering the
ve hicle. This dust measured bythe PM2.5 sensor
might lead toa short rise of outside values. Climate control
191
191

Defr
Defr
os
osting tting t he windscr
he windscr een via t
een via the climat
he climat e bar
e bar Switc
Switc
hing on
hing on #
Press ¬onthe climate bar on the central
displa y.
Switc
Switc hing
hingo.
o. #
Press ¬, Ãorj onthe climate bar
on the central display
or #
set the air0ow to0.
% When the defrost function is activated, some
functions (e.g. thete mp erature setting) are
automatically deactivated. A
A
ctiv
ctiv ating/deactiv
ating/deactiv ating t
ating the A/C function via t
he A/C function via t he
he
multimedia syst
multimedia syst em
emMultimedia system:
4 Climate menu 5
First row of seats
Depending on theex tern al conditions, impr oved
cooling and dehumidi/cation of the interior air are
suppor ted when the A/C function is activated. #
Select A/C(A/C). Se
Se
tting climat
tting climat e contr
e control t
ol to aut
o aut omatic mode via t
omatic mode via t he
he
climat
climat e bar
e bar In automatic mode,
the set vehicle interior tem-
perature is controlled automatically and main-
ta ined at a constant le velby the air suppl y. #
Press AUTO onthe climate bar on the central
displa y.
% You can increase or reduce the air0ow by
pressing Konthe climate bar on the cen-
tral displa y. #
T To switc
o switc h t
h to manual oper
o manual oper ation:
ation:switch o.
automatic mode or adjust an aspect of air dis-
tribution, e.g. P. Se Se
tting air dis
tting air distr tribution using t
ibution using t he air conditioning
he air conditioning
menu
menu Multimedia system:
4 Climate menu #
Select First row of seats orSecond row of
seats. #
Toset the air distribution: select ¯,P
or O. #
Set the air0o w.
% When the air conditioning system is switched
on, at least one zone is alw ays active. Ho w-
ev er, se veral air distribution options can be
selected at the same time, forex ample toset
th e climate control forth e interior and the
fo ot we lls simultaneousl y.The windsc reen air
conditioning ¯can only be selected for
th e /r st ro w of seats. When automatic mode
is active, the buttons for setting the air distri-
bution are automatically deactivated. When
th e air conditioning system is switched o.,
th e buttons remain operable and the last set-
ting is sa ved. Se Se
tting t
tting t he f
he foo
ootw
twell t
ell t em
emper
per ature
ature Multimedia system:
4 Climate menu #
Select ^and set the desired foot we llte m-
perature using the slider. 192
192
Climate control

Se
Se
tting r
tting r ear climat
ear climat e contr
e control using tol using t he air condi-
he air condi-
tioning menu
tioning menu Multimedia system:
4 Climate menu
Se
Se tting t
tting t he t
he tem
emper
per ature
ature #
Select Second row of seats. #
Set thete mp erature.
Se
Se tting t
tting t he
heair0ow
air0ow #
Select Second row of seats. #
Set the air 0ow with sorr.
Contr
Contr olling t
olling t he r
he rear climat
ear climat e contr
e control aut
ol automatically
omatically #
Select AUTO.
% When the defrost function is activated, some
functions (e.g. thete mp erature setting) are
automatically deactivated. Todeactivate the
defrost function, either press ¬,Ã
or j or set the air volume toleve l 0
(/ page 192).
Deactiv
Deactiv ating r
ating rear climat
ear climat e contr
e control
ol #
Select REAR OFF. Switc
Switc
hing t
hing t he sync
he sync hr
hronisation function
onisation function on/o.
on/o.via
via
t
t he air conditioning menu
he air conditioning menu Multimedia system:
4 Climate menu
Climate control can be set centrally using the syn-
ch ronisation function. The driver's settings for
te mp erature, air0ow and air distribution will be
adop ted automatically for all climate zones. #
Select First row of seats. #
Select SYNC(SYNC). Demis
Demisting t
ting the windo ws
he wind ows W
W
indow
indow s mist
s mist ed up on t
ed up on t he inside
he inside #
Press Ãonthe climate bar on the central
displa y. #
Ifth e windo wsremain misted up: press ¬
on the climate bar on the central displa y.
W
W indow
indow s mist
s mist ed up on t
ed up on t he outside
he outside #
Switch on the windscreen wipers. #
Press Ãonthe climate bar on the central
displa y. Switc
Switc
hing air
hing air -r
-recir
ecirculation mode culation mode on/o.
on/o. #
Press gonthe climate bar on the central
displa y.
The interior air will be recirculated.
Air-recirculation mode will automatical lyswitch to
fresh air mode aTer a while.
% If air-re circulation mode is switched on, the
wind ows may mist up more quickl y.Switch on
ai r-re circulation mode only brie0y. Switc Switc
hing air
hing air -r
-recir
ecir culation mode
culation mode on/o.
on/o.via t
via the
he
multimedia syst
multimedia syst em
em R
R
eq
eq uir
uir ements:
ements:
R Vehicles with /ne particle pre/lter
Multimedia system: 4 Climate menu 5
Air quality #
Press gonthe upper display area of the
climate bar.
The interior air will be recirculated.
Air-recirculation mode will automatical lyswitch to
fresh air mode aTer a while. Clima
tecont rol
193
193

Pr
Pr
e-entr
e-entr y climat
y climat e contr
e control f
ol for depar
or depar tur
ture time
e time Pr
Pr
e-entr
e-entr y climat
y climat e contr
e control f
ol for depar
or depar tur
ture time func-
e time func-
tion
tion &
W
WARNI NG
ARNI NGDanger tolife due toexposure
to extreme heat or cold in theve hicle
If people, particular lych ildren, are exposed to
ex treme temp eratures over an extended
period of time, there is a risk of serious injury
or danger tolife. #
Never lea vepersons, children in particu-
lar, unattended in theve hicle. &
W
WARNING
ARNING Risk of burns due torepeatedly
switching on the seat heating
Re peatedly switching on the seat heating can
cause the seat cushion and seat backrest pad-
ding tobecome very hot.
In particular, the health of persons with limited
te mp erature sensitivity or a limited ability to
re act tohigh temp eratures may be a.ected or
th ey may even su.er burn-like injuries. #
Do not repeatedly switch on the seat
heating. To
protect against overheating, the seat heating
may be temp orarily deactivated aTer it has been
switched on repeatedl y.
% This function is only available for plug-in
hy brids or vehicles with a 48-V on-board elec-
trical system.
The air inside theve hicle can be heated, ventila-
te d or cooled tothe set temp erature when the
ve hicle is par ked.
When theve hicle is connected topowe r supply
equipment, priority is given tocharging the 48 V
battery or the high-voltage battery toa speci/ed
minimum charge.
The running time of pre-entry climate control may
be reduced under thefo llowing conditions (vehi-
cles with a 48 V on-board electrical system):
R The vehicle is not connected topowe r supply
equipment.
R The 48 V battery is not fully charge d. The
running time of pre-entry climate control may
be reduced under thefo llowing conditions (plug-in
hy brid):
R The vehicle is not connected topowe r supply
equipment.
R The high-voltage battery is not fully charge d.
Wi th active pre-ent ryclimate cont rol,th ech arge
le ve l of the 48 V battery or the high-voltage bat-
te ry may be reduced, even if thech arging cable
connector is connected.
If present, seat ventilation is activated in cooling
and ventilation mode.
Depending on theve hicle's equipment, thefo llo w-
ing functions are activated in heating mode, if
av ailable:
R Seat heating
R Steering wheel heater
R Panel heating
R Mirror heater
R Rear wind owheater
R Windsc reen heater 198 198
Climate control

or switch o.
the preselection of the time in
th e climate menu.
If present, thefo llowing functions will remain
active once theve hicle has been star ted:
R Seat heating
R Seat ventilation
R Panel heating
Depending on theve hicle's equipment, thefo llo w-
ing functions will also be adjusted during pre-
entry climate control if they have already been
switched on during regular vehicle operation:
R Frag rancing
R Ionisation A A
ctiv
ctiv ating/deactiv
ating/deactiv ating immediat
ating immediat e pr
e pre-entr
e-entr y cli-
y cli-
mat
mat e contr
e contr ol
ol &
W
WARNI NG
ARNI NGDanger tolife due toexposure
to extreme heat or cold in theve hicle
If people, particular lych ildren, are exposed to
ex treme temp eratures over an extended period of time,
there is a risk of serious injury
or danger tolife. #
Never lea vepersons, children in particu-
lar, unattended in theve hicle. &
W
WARNING
ARNING Risk of burns due torepeatedly
switching on the seat heating
Re peatedly switching on the seat heating can
cause the seat cushion and seat backrest pad-
ding tobecome very hot.
In particular, the health of persons with limited
te mp erature sensitivity or a limited ability to
re act tohigh temp eratures may be a.ected or
th ey may even su.er burn-like injuries. #
Do not repeatedly switch on the seat
heating. To
protect against overheating, the seat heating
may be temp orarily deactivated aTer it has been
switched on repeatedl y.
R
R eq
eq uir
uir ements (plug-in h
ements (plug-in h ybr
ybrid)
id)
R theve hicle is switched o.. %
The immediate pre-ent ryclimate cont rol is
only available for plug-in hybrids or vehicles
with a 48-V on-board elect rical system.
Air conditioning of theve hicle interior can con-
tinue for up to50 minutes, e.g. if the journey is
inter rupted. 200
200
Climate control

#
Obser vethech anged vehicle height with
add-on roof equipment. N
No
ot
tes on dr
es on dr iving wit
iving with a r
h a roof load, tr
oof load, tr ailer or fully
ailer or fully
laden v
laden v ehicle
ehicle
When driving with a loaded roof luggage rack or
trailer as well as with a fully laden or fully occu-
pied vehicle, theve hicle's driving and steering
ch aracteristics change.
Yo u should bear thefo llowing in mind:
R Do not exceed the permissible roof load and
to wing capacity. Also obser vethete ch nical
data in the printed Owner's Manual.
R Evenly distribute thero of load, and place
heavy objects at the bottom. Also comply with
th e no tes on loading theve hicle
(/ page 148).
R Drive attentivel y,and avoid suddenly pulling
awa y,braking and steering as well as rapid
cornering.
Not
Not es on dr
es on dr iving on salt-tr
iving on salt-tr eat
eated r
ed r oads
oads
The braking e.ect is limited on salt-treated roads. Therefore, obser
vethefo llowing no tes:
R due tosalt build-up on the brake disks and
brakepads, the braking distance can increase
considerably or result in braking only on one
side
R maintain a much greater safe distance tothe
ve hicle in front
To remo vesalt build-up:
R brake occasionally while paying attention to
th e tra1c conditions
R carefully depress the brake pedal at the end of
th e journey and when starting the next jour-
ney
N
No ot
tes on aq
es on aq uaplaning
uaplaning
Aq uaplaning can take place once a cer tain
amount of water has accumulate d onthero ad
sur face.
Obser vethefo llowing no tes during heavy precipi-
ta tion or in conditions in whi chaquaplaning may
occur:
R reduce speed
R avoid tyre ruts R
avoid sudden steering mo vements
R brake careful ly
% Also obser vethe no tes on regula rly ch ecking
wheels and tyres (/ page 461).
N
No ot
tes on dr
es on dr iving t
iving thr
hrough w
ough w at
ater on t
er on t he r
he road sur-
oad sur-
f
f ace
ace
Wa ter which has entered into theve hicle can
damage the engine, electrics and transmission.
Wa ter can also enter the air intake of the engine
and cause engine damage.
Obser vethefo llowing if you must drive thro ugh
wa ter:
R The water,when calm, may only reach the
lo we r edge of theve hicle body.
R Drive at a maximum speed of 10 km/h; water
can otherwise enter theve hicle interior or
engine compartment.
R Vehicles tr avelling in front, or oncoming vehi-
cles, can create waves which may exceed the
maximum permissible dep thofthewa ter.
The braking e.ect of the brakes is reduced aTer
fo rd ing. Brake carefully while paying attention to218 218
Driving and parking

The
following route events can be de tected by
ECO Assist:
3 Roundabout
4 S-bend
5 Sharp bend
6 T-junction
7 Downhill gradient
8 Vehicle in front
9 Speed limit
% In drive prog ram A, ECO Assist only reacts
to route event 8"Vehicle in front." Syst Syst
em limits
em limits
If th e calculated route is adhered towhen route
guidance is active, ECO Assist will operate with
gr eater accuracy. The basic function is also availa-
ble without active route guidance. Not all informa-
tion and tra1c situations can be fore seen. The
qu ality depends on the map data.
ECO Assist is only an aid. The driver is responsible
fo rke eping a safe distance from theve hicle in
front, forve hicle speed and for braking in good
time.
The system may be impaired or may not function
in thefo llowing situations:
R Ifth ere is poor visibility, e.g. due toinsu1cient
illumination of thero ad, highly variable shade
conditions, rain, sno w,fog or heavy spr ay.
R Ifth ere is glare, e.g. from oncoming tra1c,
direct sunlight or re0ections.
R Ifth e windscreen in the area of the multifunc-
tion camera is dirty, or if the camera is misted
up, damaged or co vered.
R Ifth e tra1c signs are hard todetect, e.g. due
to dirt, snow or insu1cient lighting, or
because they are co vered. R
Ifth e information in the navigation system's
digital map is incor rect or out-of-date.
R If signs are ambiguous, e.g. road signs in road-
wo rks or in adjacent lanes. R R
eg
eg ener
ener ativ
ative br
e br ak
ake syst
e syst em (plug-in h
em (plug-in h ybr
ybrid)
id) F
F
unction of t
unction of t he r
he recuper
ecuper ativ
ative br
e br ak
ake syst
e syst em
em
Depending on the selected recuperation le vel,the
electric mo tor is operated as an alternator when
in overrun mode and during braking in order to
ch arge the high-voltage battery while driving. As
soon as youre lease the accelerator pedal when
th eve hicle is in motion, recuperation in overrun
mode is initiated.
The higher there cuperation, the more sharply the
ve hicle is braked when coasting and the more
electrical energy is fed into the high-voltage bat-
te ry.
The rege nerative brake system has thefo llowing
ch aracteristics:
R supports braking with elect ronically cont rolled
brake forc e boosting 222 222
Driving and parking