2021 MERCEDES-BENZ S-CLASS SALOON LONG battery

The side wind
ow
The side wind ows canno
s canno t be opened or closed
t be opened or closed
using t
using t he conv
he conv enience opening f
enience opening f eatur
eature.
e.
Po ssible causes:
R The key battery is weak or dischar ged. #
Check the battery using the indicator lamp
(/ page 88). #
Replace theke y batter y,if necessary
(/ page 90). Sliding sunr
Sliding sunr
oof
oof Opening and closing t
Opening and closing t
he sliding sunr
he sliding sunroof
oof%
The term "sliding sunroof" refers to the pano-
ra ma sliding sunroof. &
W
WARNING
ARNING Risk of becoming trapped when
th e sliding sunroof is being opened and
closed
Body parts may become trapped in thera nge
of mo vement. #
During the opening and closing process,
make sure that no body parts are in the
sweep of the sliding sunroof. #
If someone is trapped, release the con-
trol panel immediatel y.
or #
Touch the control panel during automatic
operation.
The opening/closing process will be
stopped. &
W WARNING
ARNING Risk of entrapment if the slid-
ing sunroof is operated bychildren
Children operating the sliding sunroof could
get caught in the moving parts, particular lyif
unattended. #
Never lea vechildren unattended in the
ve hicle. #
When leaving theve hicle, alw aysta ke the
ke y with you and lock theve hicle. &
W
WARNING
ARNING Risk of becoming trapped when
th ero ller sunblind is being opened and
closed
Body parts may become trapped between the
ro ller sunblind and frame or sliding roof. #
During the opening or closing process,
make sure that no body parts are in the
ro ller sunblind's range of mo vement. #
If someone is trapped, release the con-
trol panel immediatel y.
or #
Touch the control panel during automatic
operation.
The opening/closing process will be
stopped. *
N NOOTE
TE Malfunction due tosnow and ice Sn
ow and ice may cause the sliding sunroof to
malfunction. #
Open the sliding sunroof only if it is free
of snow and ice. 108
108
Opening and closing

Yo
u can charge a USB device, such as a mobile
phone, at the USB ports using a suitable charging
cable. Depending on theve hicle equipment, the
devices can be charge d with up to20 V (5 A)
when the ignition is switched on. Coolbox
Coolbox
Using t
Using t
he r
he refr
efrig
iger
er at
ator box
or box &
W
WARNING
ARNING Risk of /re due toa co vered
ve ntilation grille on the coolbox
If yo u co verth eve ntilation grille forth e cool-
box, it may overheat. #
Always make sure that theve ntilation
gr ille is not co vered. The
vent grille forth ere frigerator box is in the
boot.
The refrigerator box can bear a maximum load of
3.5 kg.
The upper co mpartment of there frigerator box
can accommodate, forex ample, plastic bottles with a maximum capacity of 0.5 lit
res and cans
with a capacity of up to0.33 litres
If yo u do not need touse there frigerator box for
an extended period, you should switch it o.,
defrost it and clean it. ATer doing so, lea vethe lid
open for a time.
More condensation may occur during intensive
use. Cleaning may be requ ired.
The refrigerator box will reduce its cooling capa-
city or switch o. in thefo llowing cases:
R Too many electrical consumers are turned on.
R The star ter battery is not su1ciently charge d.
If th is is the case, the indicator lamps will 0ash on
th e button for switching there frigerator box on
and o.. The cooling function will au tomatically
switch back on as soon as there is su1cient volt-
age. Example:
vehicles with individual rear seats #
Vehicles with elect rically adjus table outer
seats: fold down there ar armrest. #
Pull handle 1on st owage box and fold down
co ver2 of st owage box. 162 162
Seats and st
owing

5
L Low beam/high beam
6 R Switches there ar fog light on/o.
When low beam is activated, theT indicator
lamp forth e standing lights will be deactivated
and replaced bytheL low- beam indicator
lamp. #
Always park your vehicle safely using su1cient
lighting, in accordance with there leva nt legal
stipulations.
* N
NOOTE
TE Battery dis charging byoperating the
standing lights Operating
the standing lights over a period of
hours puts a strain on the batter y. #
Where possible, switch on theright X
or leT Wparking light. Fo
rve hicles that are wider than 2 m or lon ger
th an 6 m,single-sided parking lighting is not per-
mitted in some countries. In this case, the stand-
ing lights are also switched on in the parking
lights position. If
th e battery is insu1ciently charge d, the stand-
ing lights or parking lights will be switched o.
automatically tofacilitate the next engine start.
The exterior lighting (e xcept standing and parking
lights) will switch o. automatically when the driv-
er's door is opened.
R Obser vethe no tes on sur round lighting
(/ page 178).
Switc Switc hing on accident scene lighting
hing on accident scene lighting #
Switch o. theve hicle. #
Switch on the hazard warning light
(/ page 172). #
Turn the light switch from theà position to
th eL position.
The low beam will be switched on despite the
ve hicle being switched o..
The accident scene lighting will be switched o. if:
R you switch o. the hazard warning lights.
R you turn the light switch back toà .
R the battery is insu1ciently charge d. A
A
ut
ut omatic dr
omatic dr iving lights function
iving lights function
When theve hicle is switched on, the standing
lights, low beam and daytime running lights are
switched on automatically depending on the light
conditions. &
W
WARNING
ARNING Risk of accident when the
dipped beam is switched o. in poor visi-
bility
When the light switch is set toà ,the
dipped beam may not be switched on auto-
matically if there is fog, snow or other causes
of poor visibility such as spr ay. #
In such cases, turn the light switch to
L . The automatic driving lights are only an aid.
Yo u
are responsible forve hicle lighting.
Switc Switc hing t
hing t he r
he rear f
ear f og lights on or
og lights on or o.
o.
R
R eq
eq uir
uir ements:
ements:
R The light switch is in theL orà posi-
tion. #
Press the R button. 170
170
Light and sight

R
ifyo ufa sten your seat belt while theve hi-
cle is in motion #
Before starting theve hicle: in particular,
adjust the driver's seat, head restraint,
stee ring wheel and mir ror,and fasten
yo ur seat belt. &
W
WARNING
ARNING Risk of accident due tomis-
judgement of distance when using the
outside mir ror
The outside mir rors re0ect objects on a
smaller scale. The objects in vi eware in fact
closer than they appear. #
Therefore, alw ays look overyo ur shoul-
der in order toensure that you are aware
of the actual distance between you and
th ero ad users driving behind you. A
A
djus
djusting t ting t he outside mirr
he outside mirr ors
ors #
Use button 2or4 toselect the desired mir-
ro r.
% Invehicles with MBUX Interior Assis tant and
driver camera, there qu ired outside mir ror can
also be preselected automatically via a natural
head mo vement tothe leT or right
(/ page 376). #
Use button 1toadjust the position of the
selected mir ror.
F F olding t
olding t he outside mirr
he outside mirr or
ors in/out
s in/out #
Brie0y press button 3.
% Ifth e battery has been disconnected or has
dischar ged, the outside mir rors must be
mo ved brie0y using button 3. Onlythen will
th e automatic mir rorfo lding function work
proper ly.
Eng
Eng aging t
aging t he outside mirr
he outside mirr ors
ors
If an outside mir ror has been forc ibly disengaged,
proceed as follo ws. #
Press and hold button 3.
Yo u will hear a click and the mir ror will audibly
engage. The outside mir ror will now be set to
th e cor rect position. Light and sight
185
185

Depending on
theve hicle's equipment, thefo llo w-
ing functions will be activated as needed during
pre-cooling:
R Automatic climate control
R Blower
R Seat ventilation
Depending on theve hicle's equipment, thefo llo w-
ing functions will be activated as needed during
pre-warming:
R Automatic climate control
R Blower
R Seat heating
R Steering wheel heater
R Panel heating
R Mirror heater
R Rear wind owheater
R Windsc reen heater 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
Se Se tting t
tting t he pr
he pre-entr
e-entr y climat
y climat e contr
e control on t
ol on the multi-
he multi-
media syst
media syst em when t
em when the v
he vehicle is unlock
ehicle is unlock ed
ed
Multimedia system:
4 Climate menu 5
Pre-entry climate ctrl #
Switch the function on or o..
Yo u can specify for which seat the function should
be switched on or o. via the seat selection.
A
A ctiv
ctiv ating/deactiv
ating/deactiv ating pr
ating pre-entr
e-entry climat
y climat e contr
e control
ol
when t
when t he v
he vehicle is unlock
ehicle is unlock ed
ed
R
R eq
eq uir
uir ements:
ements:
R The high-voltage battery is charge d su1-
cient ly.
R The function has been activated via the multi-
media system. #
T
To switc
o switc h on:
h on:unlock theve hicle.
The climate cont rol functions are activated for
up to/ve minutes for pre-heating and pre-
cooling.
Pre-entry climate control when theve hicle is
unloc ked cannot be activated more than twice
when theve hicle is switched o.. #
T
To switc
o switc h
ho.:
o.: press &onthe climate bar
on the central displa y.
Depending on theve hicle equipment, thefo llo w-
ing functions will remain active once theve hicle
has been star ted:
R Seat heating
R Seat ventilation
R Panel heating
R Frag rancing
R Ionisation Climate cont
rol
197
197

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

When
the set temp erature is changed, climate
cont rol mode will automatically be updated and
switched from heating mode toventilation or cool-
ing mode, from cooling mode toventilation or
heating mode or from ventilation mode toheating
or cooling mode.
Se Se tting pr
tting pr e-entr
e-entry climat
y climat e contr
e control f
ol for depar
or depar ture
ture
time via t
time via t he climat
he climate bar
e bar
Multimedia system:
4 Climate menu 5
Pre-entry climate ctrl
Se
Se tting t
tting t he depar
he depar tur
ture time
e time
% The set departure times are used forth eve hi-
cle's pre-ent ryclimate cont rol and for predic-
tions rega rding the appr oximate state of
ch arge and range at the time selected. Addi-
tional information on thech arging settings:
(/ page 387). #
Select Edit departure time ´.#
Select a departure time or set a new depar-
ture time.
Se Se tting t
tting t he r
he repeat da ys
epeat da ys #
Select Edit departure time ´. #
Set the desired departure time and select the
cor responding weekda yson which this depar-
ture time is toappl y. #
Press OKtocon/rm.
Selecting seats
Selecting seats #
Select Driver, Passenger, Rear leftorRear
right.
Pre-entry climate cont rol will take place for
th e selected seats.
Oper Oper ation using t
ation using t he app:
he app:the pre-entry climate
control for departure time can also be set 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/cars/connectmeen_GB/#emotions/
St artsei te.html.
A A ctiv
ctiv ating/deactiv
ating/deactiv ating pr
ating pre-entr
e-entry climat
y climat e contr
e controlol
f
f or depar
or depar tur
ture time
e time
R
R eq
eq uir
uir ements (v
ements (v ehicles wit
ehicles wit h a 48 V on-boar
h a 48 V on-boar d elec-
d elec-
tr
tr ical syst
ical syst em)
em)
R The 48 V battery is charge d su1cient ly. R
The function has been activated via the multi-
media system.
R
R eq
eq uir
uir ements (plug-in h
ements (plug-in h ybr
ybrid)
id)
R The high-voltage battery is charge d su1-
cient ly.
R The function has been activated via the multi-
media system. #
T
To activ
o activ at
ate:
e: set the departure time
(/ page 199).
Pre-entry climate control for departure time
switches on a maximum of 55 minutes before
th e selected departure time. It will remain
active for ano ther /ve minutes if the departure
is dela yed. #
T To deactiv
o deactiv at
ate t
e t he pr
he pr e-entr
e-entr y climat
y climat e contr
e control f
ol for
or
depar
depar tur
ture time earl
e time earl y (v
y (vehicles wit
ehicles wit h 48 V on-
h 48 V on-
boar
boar d electr
d electr ical syst
ical syst em):
em):press the& but-
to n or switch o. the preselection of the time
in the climate menu. #
T
To deactiv
o deactiv at
ate t
e t he pr
he pr e-entr
e-entr y climat
y climat e contr
e control f
ol for
or
depar
depar tur
ture time earl
e time earl y (plug-in h
y (plug-in h ybr
ybrid):
id): press
& onthe climate bar on the central display Climate control
199
199

3
Selected depa rture time
4 Remaining time forth e stationary heater/
ve ntilation (in minutes)
5 Stationary heater/ ventilation active
6 Departure time activated
7 Signal strength
Fu rther possible displ ays:
R T
Time:
ime: the activated departure time.
R Zer
Zero minut
o minut es:
es:theru nning time forth e station-
ary heater is extended because the engine has
not yetreached operating temp erature when it
is star ted.
R OFF:
OFF: the stationary heater/ventilation is
switched o..
R
R eplacing t
eplacing t he r
he remot
emot e contr
e contr ol batt
ol batter
ery (st
y (st ationary
ationary
heat
heat er)
er) &
D
DAN
AN GER
GER Risk of fatal injuries if batteries
are swallo wed
Batteries contain toxic and cor rosive subs tan-
ces. Swallow ing batteries may cause se vere
internal burns within two hours. There is a
risk of fatal injur y. #
Keep batteries out of there ach of chil-
dren. #
Ifth e co ver and/or lid of the battery
compartment does not close securel y,
do not use theke y and keep it away from
ch ildren. #
If batteries are swallo wed, seek medical
attention immediatel y. +
ENVIR
ENVIR
ONMENT
ONMENT AL NO
AL NOTE
TEEnvironmen tal
damage due toimproper disposal of bat-
te ries Batteries contain
toxic and corro-
sive substances. #
Ta
ke dischar ged batteries to a
qu ali/ed specialist workshop or toa col-
lection point for used batteries. R
R
eq
eq uir
uir ements:
ements:
R One CR2450 lithium battery
Mercedes-Benz recommends that you ha vethe
battery replaced at a quali/ed specialist work-
shop. #
Push a poin ted object into recess 1. 204
204
Climate cont
rol