2021 MERCEDES-BENZ S-CLASS SALOON LONG AUX

Ov
Ov
er
ervie
vie w of climat
w of climat e contr
e control syst
ol systems
ems N
No
ot
tes on climat
es on climat e contr
e control
ol An interior air /lter in combination with
the pre/l-
ter inthe engine compartment must alw ays be
used so that the air conditioning system, pollution
le ve l monitoring and the air /lt ration workcor-
re ctl y.Use /lters recommended and appr oved by
Mercedes-Benz. Alw ays ha vemaintenance work
car ried out at a quali/ed specialist workshop. Ov
Ov
er
ervie
vie w of THERMO
w of THERMO TR
TRONIC climat
ONIC climat e bar
e bar The indicator lamps indicate
that the cor respond-
ing function is activated. Fr
ont climate bar on the central display
(e xamp le)
1 s Increases thete mp erature
2 Upper display area of the climate bar with the
ex amples of jswitching o. climate con-
trol (/ page 191), ¿switching the A/C
function on/o. (/ page 192) and0syn-
ch ronisation function (/ page 193) 3
¬ Demists the windscreen
(/ page 192, 196)
4 g Switches air-recirculation mode on/o.
(/ page 193) or
G Calls up the particulate status display
(/ page 191) or
Ac tivates/deactiva tesre sidual heat utilisation
(/ page 194)
Plug-in hybrid vehicles: &Activates or
deactivates pre-entry climate control
(/ page 200)
5 ¤ Switches there ar wind owheater on/o.
6 Depending on vehicle equipment and set-
tings: temp erature displa y,defrost function
displa y,air0o w,pre-ent ryclimate cont rol or
auxiliary heating
7 J Increases the air0ow or switches on cli-
mate control (/ page 191)
8 r Reduces thete mp erature
9 Ã Sets climate control toautomatic mode,
ri ght (/ page 192)
A ± Calls up the air conditioning menu
(/ page 191) Climate control
189 189

#
Vehicles with a 48-V on-board elect rical sys-
te m: press button 1.
The red or blue indicator lamp on button 1
will light up or go out. #
Plug-in hybrid: press &onthe climate bar
of the central displa y.
The red or blue indicator lamp below &on
th e climate bar on the central display will light
up or go out. #
Set thete mp erature using the ar rows w
on the climate bar on the central displa y.
The colours of the indicator lamp ha vethefo llo w-
ing meanings (plug-in hybrid):
R Blue:
Blue: Ventilation or cooling mode is switched
on.
R R
Red:
ed: Heating mode is switched on.
The colours of the indicator lamp ha vethefo llo w-
ing meaning (vehicles with a 48 V on-board elec-
trical system):
R Blue: Blue: Ventilation or cooling mode is switched
on.
R R
Red:
ed: Heating mode is switched on. R
Y
Yello w:
ello w:the departure time is preselected. S
S
t
tationar
ationar y heat
y heater/v
er/ventilation
entilation S
S
t
tationar
ationar y heat
y heater/v
er/ventilation function
entilation function
% The following function is equipment-depend-
ent.
R The air inside theve hicle is heated or ventila-
te dto the set temp erature.
R The air inside theve hicle cann otbe cooled
down to temperatures below the outside tem-
perature.
R Ifth e outside temp erature changes, ventilation
mode automatically switches toheating mode
or heating mode automatically switches to
ve ntilation mode.
The stationary heate r andtheex haust gas outl et
are situated behind theright-hand front wheel. Switc
Switc
hing t
hing t he st
he stationar
ationar y heat
y heater/v
er/ventilation
entilation on/o.
on/o.
via t
via t he oper
he oper ating unit
ating unit &
D
DAN
AN GER
GER Risk of fatal injury due topoison-
ous exhaust gases
If th eta ilpipe is bloc ked or su1cient ventila-
tion is not possible, poisonous exhaust gases
such as carbon monoxide may enter theve hi-
cle. This is the case in enclosed spaces or if
th eve hicle gets stuck in sno w,forex ample. #
Always switch the stationary heater o. in
enclosed spaces without an air extrac-
tion system, e.g. in garage s. #
Keep theta ilpipe and the area around
th eve hicle free from snow when the
ve hicle or the auxiliary heating is run-
ning. #
Open a door or a roof hatch on the wind-
wa rdside of theve hicle toensure an
adequate supply of fresh air. Climate control
201
201

&
W
WARNI NG
ARNI NGRisk of /re due tohot station-
ary heater components and exhaust gases
Flammable materials such as lea ves, grass or
twigs may ignite. #
When the stationary heater is switched
on, make sure that:
R hot vehicle parts do not come into
contact with 0ammable materials.
R theex haust gas can 0ow out of the
stationa ryheater exhaust pipe unhin-
dered.
R theex haust gas does not come into
contact with 0ammable materials. *
N
NOOTE
TE Bat tery dischar gecaused bysta-
tionar y heater or stationaryventilation
ope ration Operating
the stationary heater or stationary
ve ntilation drains the batter y. #
ATer heating or ventilating theve hicle
twice, drive for a longer period of time. R
R
eq
eq uir
uir ements:
ements:
R The vehicle is /tted with the stationary heater
equipment.
R The outside temp erature is below 15°C.
R The fuel tank is su1cient lyfull.
% Ifth e /ll le vel of the fuel tank is too lo w,the
auxiliary heating mode may be restric ted. #
Set thete mp erature using the ar rows w
on the climate bar on the central displa y. #
Press button &.
The red or blue indicator lamp on button &
will light up or go out.
The colours of the indicator lamp ha vethefo llo w-
ing meanings:
R Blue: Blue: stationary ventilation is switched on.
R R
Red:
ed: the stationary heater is switched on.
R Y
Yello w:
ello w:the departure time is preselected.
The stationary heater/ventilation will switch o.
automatically aTer 50 minutes.
Oper Oper ation using t
ation using t he app:
he app:the stationary heater/
ve ntilation can also be ope rated via the Mercedes
me connect app. You can /nd fur ther information in
the separate Owner's Manual at https://
moba.i.daimler.com/mar kets/ece-r ow/baix/
ca rs/connectmeen_GB/#em otions/
St artsei te.html.
Se
Se tting t
tting t he st
he stationar
ationar y heat
y heater/v
er/ventilation via t
entilation via t he
he
multimedia syst
multimedia syst em
em
R
R eq
eq uir
uir ements:
ements:
R The vehicle is /tted with the stationary heater
equipment.
Multimedia system: 4 Climate menu 5
Stationary heater
Selecting t
Selecting t he depar
he departur
ture time
e time #
Select Time A, Time BorTime C.
Se
Se tting t
tting t he depar
he depar tur
ture time
e time #
Select Time A, Time BorTime C. #
Select the pen beside the time. #
Set a time. 202
202
Climate control

th
e tra1c conditions until braking po wer has been
fully restored. F
F
unction of r
unction of r ear axle st
ear axle steer
eering
ing %
This function is an on-demand feature
(/ page 26).
The rear axle steering is an elect romechanical
auxiliary steering on there ar axle which adjusts
th e steering of there ar wheels according tothe
position of the front wheels, depending on the
speed. This results in greater manoeuvrability and
impr oved driving stability, e.g. when cornering.
Re ar axle steering has thefo llowing characteris-
tics:
R reduced steering e.ort and turning circle
re sulting in reduced parking e.ort
R impr oved driving stability, e.g. when cornering
R more direct steering resulting in impr oved
handling of theve hicle
Obser vethe no tes on snow chains and snow
ch ain mode (/ page 462). EC
EC
O st
O st ar
art/st
t/st op function
op function EC
EC
O st
O st ar
art/st
t/st op function
op function
% Depending on the engine, the ECO start/s top
function is not available in all drive prog rams.
Obser vethe status display in the driver's dis-
play forth is.
% Plug-in h
Plug-in h ybr
ybrid:
id:This function is not available.
The engine is switched o. automatically in thefo l-
lowing situations if all vehicle conditions for an
automatic engine stop are met:
R you brake theve hicle toa standstill in trans-
mission position hori.
R V
Vehicles wit
ehicles with a 48 V on-boar h a 48 V on-boar d electr
d electrical sy
ical sys-
s-
t
t em:
em: you depress the brake pedal when tr avel-
ling at a low speed.
If th e system has de tected one of thefo llowing
situations, the engine will not stop:
R you stop at a stop sign and there is no vehicle
in front of you.
R theve hicle that stopped in front of you starts
up again. R
you manoeuvre, turn the steering wheel
sharply or engage reve rsege ar.
% Ifth e system de tects an intelligent stop inhibi-
to r,fo rex ample, a stop sign, the engine will
not stop.
If yo u activate the HOLD function or engage
th e park position j,the engine can be
switched o. in spite of an intelligent stop
inhibitor.
The engine restarts au tomatically in thefo llowing
cases:
R you engage transmission position hork.
R you depress the accelerator pedal.
R theve hicle requ ires an automatic engine start.
R youre lease the brake pedal.
R V Vehicles wit
ehicles wit h a 48 V on-boar
h a 48 V on-boar d electr
d electrical sy
ical sys-
s-
t
t em:
em:
- youre lease the brake pedal on a downhill
gr adient and theve hicle does not roll.
- theve hicle rolls on a downhill gradient and
does not automatically enter glide mode at
20 km/h. Driving and parking
219 219

Combo 2
vehicle soc ket
1 Type 1 or type 2 connection forch arging with
alternating cur rent
2 Socketex tension forch arging with direct cur-
re nt
% When using a CCS (Combined Charg ing Sys-
te m) charging cable tocharge with direct cur-
re nt at a combo vehicle soc ket, bo thvehicle soc
ket connections 1and 2are used for
ch arging.
Charging options forth e high-voltage battery
(mode 2, 3 or 4):
R Charging through recuperation while theve hi-
cle is in motion
R Charging with alternating cur rent when sta-
tiona ry:
- at a mains soc ket (mode 2)
- at a wallbox or charging station (mode 3)
R Charging with direct cur rent when stationary
(vehicles with combo vehicle soc kets):
- at a fast charging station (mode 4)
Depending on the count ry-speci/c vehicle equip-
ment and your vehicle's charging cable, single
phase ACcharging is also possible.
Obser vethe di.erent grid requ irements of your
cur rent location when charging. Only use charging
cables which conform tothegr id requiremen ts.
Consult a quali/ed elect rician or your local grid
operator if you ha veany questions. It is
recommended that youch arge the high-volt-
age battery at a wallbox or charging station due to
th e impr ovedch arging per form ance and better
ch arging e1ciency o.ered.
S
S t
to
o wing t
wing t he c
he char
harging cable
ging cable
Alw ays st owtheve hicle charging cable in the
ch arging cable bag pr ovided and secure it tothe
boot 0oor of your vehicle with the hook-and-loop
ta pe facing down wards.
Otherwise, thech arging cable is not su1ciently
secured.
Sy Sy st
stem limits
em limits
The po wer output of the high-voltage battery may
be impaired bythefo llowing:
R High or low outside temp eratures
R Electrical auxiliary consumers in theve hicle
being switched on, e.g. operating the air con-
ditioning system
R Extended periods without charging
The charging time of the high-voltage battery may
be increased bythefo llowing:
R High or low outside tempe ratures Driving and parking
243
243

ch
arging or from auxiliary consumers that are
switched on. Further information on rech arge e1-
ciency can be obtained at a quali/ed specialist
wo rkshop. N
No
ot
tes on c
es on c har
harging t
ging t he high-v
he high-v olt
oltag
age batt
e batt er
ery at a
y at a
f
f as
ast c t c har
har ging st
ging st ation (mode 4)
ation (mode 4) &
D
DAN
AN GER
GER Risk of fatal injuries due todam-
aged components
Connecting thech arging cable toach arging
station using a damaged component part
could cause a /re or an elect ric shoc k,for
ex ample. #
Forch arging stations with a preinstalled
ch arging cable:
R Perform a visual check of thech arg-
ing station for obvious faults, such as
massive damage tothe housing or
ch arging cable. #
Forch arging stations without a preinstal-
led charging cable:
R For saf etyre asons, only use charging
cables that ha vebeen tested and appro
vedby the manufacturer for
ch arging the high-voltage battery in
an electric vehicle.
R Never use damaged charging cables.
R Do not extend thech arging cable.
R Do not use adap ters. #
Make sure toobser vethe saf ety in form a-
tion on thech arging station. Most
charging stations must be activated before
th ech arging process, e.g. using an RFID card.
Obser vethe on-site operator's inst ructions forthe
ch arging station.
The charging cable forth eve hicle must not be
lon gerth an 30 m due tothe legal requ irements in
some countries. This is toprev ent the inter fer-
ence of signals being received byradio communi-
cation devices in theve hicle or in close pr oximity
to thech arging station. Be awarethat parts of the
ch arging cable may be routed under ground. If in
doubt, ask thech arging station operator if this is
th e case before charging the high-voltage batter y.
The amount of energy dispensed forth ech arging
process, shown bythech arging station, may be higher
than the amount of energy actually absor-
bed bythe high-voltage batter y.This is there sult
of di.erent le vels of charging losses and is descri-
bed as rech arge e1ciency. Charging losses occur,
fo rex ample, due toheat that builds up when
ch arging or from auxiliary consumers that are
switched on. Further information on rech arge e1-
ciency can be obtained at a quali/ed specialist
wo rkshop. Se Se
tting t
tting t he maximum per
he maximum per missible c
missible char
harging cur-
ging cur-
r
r ent f
ent f or c
or char
harging at a mains soc ket
ging at a mains soc ket *
N
NO
OTE
TE Overloading the mains soc ket due
to excessive charging cur rent If
th ech arging cur rent is too high, the fuse
could be tripped or theex tern al mains supply
could overheat. #
Ensure that theex tern al mains supply
has been designed tohandle thech arg-
ing cur rent pr ovided. 246
246
Driving and parking

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
Drive malfunction Stop
Consult workshop *T
he transmission is malfunctioning. #
Stop theve hicle immediately in a safe location and do not continue driving. #
Consult a quali/ed specialist workshop.
Drive overheated. Drive on
with care *T
he transmission is overheating. When the display message is active, start-up and driving characteristics may be tem-
porarily impaired. #
Drive at low engine speed. #
Avoid sporty driving. #
Before pulling away on uphill gradients, let the transmission cool down until the display message disappears.
Auxiliary battery malfunc-
tion (white display message) *T
here is a malfunction in the auxiliary batter y. #
Consult a quali/ed specialist workshop. #
Until then, alw ays select park position jmanually before you switch o. theve hicle. #
Before leaving theve hicle, apply the electric parking brake.
Auxiliary battery malfunc-
tion (red display message) *T
here is a malfunction in the auxiliary batter y. #
Consult a quali/ed specialist workshop. #
Until then, alw ays select park position jmanually before you switch o. theve hicle. #
Before leaving theve hicle, apply the electric parking brake. 532 532
Display messages and
warning/indicator lamps