2021 MERCEDES-BENZ S-CLASS SALOON LONG heater

#
Bring theve hicle toa standstill bypressing the
brake pedal. #
Ongradients, turn the front wheels so that the
ve hicle will rollto wa rdsth eke rb if it starts
moving. #
Apply the electric parking brake. #
Engage transmission position jin a station-
ary vehicle with the brake pedal applied
(/ page 232). #
Switch o. theve hicle bypressing the1 but-
to n. #
Release the service brake slo wly. #
Get out of theve hicle and lock it.
% When you park theve hicle, you can still oper-
ate the side windo wsand the panoramic slid-
ing sunroof for appr oximately four minutes if
th e driver's door is closed. Gar
Gar
ag
age door opener
e door opener Pr
Pr
ogr
ogr amming butt
amming butt ons f
ons for t
or the g
he g ar
arag
ag e door opener
e door opener &
D
DAN
AN GER
GER Risk of fatal injuries caused by
ex haust gases
Combustion engines emit poisonous exhaust
ga ses such as carbon monoxide. Inhaling
th ese exhaust gases is hazardous tohealth
and leads topoisoning. #
Never lea vetheve hicle or, if present, the
stationa ryheater running in an enclosed
space without su1cient ventilation. &
W
WARNI NG
ARNI NGRisk of injury bybecoming
trapped when opening and closing a
ga rage door
When you operate or prog ram a garage door
with an integ ratedga rage door opener, per-
sons can become trapped or struck bythe
ga rage door if they stand wi thin its range of
mo vement. #
Always make sure that nobody is within
th era nge of thega rage door's mo ve-
ment. Before prog
ramming thega rage door opener, park
th eve hicle outside thega rage . Make sure that the
ve hicle is switched on but not star ted.
R R eq
eq uir
uir ements:
ements:
R The vehicle has been par ked outside the
gar age or outside thera nge of mo vement of
th e door. 260
260
Driving and parking

th
e jump lead. Start with the donor vehicle
/rst. #
Start the engine of your ow nve hicle. #
Let the engines runfo r se veral minutes. #
Before disconnecting the jump leads, switch
on an electrical consumer in your ow nve hicle,
e.g. there ar wind owheater or the lighting.
When starting assistance has /nished: #
Firs t, re mo vethe jump lead from the ear th
point of your ow nve hicle and the negative ter-
minal of the donor batter y,then remo vethe
jump lead from the POSITIVE contacts of bo th
ve hicles. Alw ays start with your ow nve hicle
/rst. #
Close pr otective co ver2 of POSITIVE con-
ta ct 3 and close co ver1.
Plug-in h
Plug-in h ybr
ybrid:
id:ifyo ur vehicle has been star ted
with starting assis tance, it may not be possible to
use the electric drive for appr oximately 30
minutes.
Fu rther information can be obtained at a quali/ed
specialist workshop. Char Char
ging t
ging t he 12 V batt
he 12 V batt ery
ery #
Connect the POSITIVE contacts of theve hicle
and thech arge r with thech arging cable. Start
with theve hicle /rst. #
Connect the NEG ATIVE contact of thech arger
and ear thpoint 4ontheve hicle with the
ch arging cable. Start with thech arge r /rst. #
Start thech arging process.
When thech arging process is comple te: #
Remo vethech arging cable from ear thpoint
4 ontheve hicle and the NEG ATIVE contact
of thech arge r /rst and then from the POSI-
TIVE contacts on theve hicle and charge r.
Alw ays start with theve hicle /r st. #
Close pr otective co ver2 of POSITIVE con-
ta ct 3 and close co ver1. R
R
eplacing t
eplacing t he 12 V batt
he 12 V batt ery
ery #
Obser vethe no tes on the 12 V battery
(/ page 444). Mercedes-Benz
recommends that you ha vethe
12 V battery replaced at a quali/ed specialist
wo rkshop, e.g. at a Mercedes-Benz Se rvice
Centre.
Obser vethefo llowing no tes if youwa nttoreplace
th e battery yourself:
R Alwaysre place a faulty battery with a battery
which meets the speci/c vehicle requ ire-
ments.
The vehicle is equipped with an AGMtech nol-
ogy bat tery (Absorbent Glass Mat) or a lith-
ium-ion batter y.Fu llve hicle functionality is
only guaranteed with an AGM bat tery or lith-
ium-ion batter y.Fo r saf etyre asons, Mercedes-
Benz recommends that you only use batteries
which ha vebeen tested and appro vedfo ryo ur
ve hicle byMercedes-Benz.
R Carryove r de tach able parts, such as vent
hoses, elbow /ttings or term inal co vers from
th e battery being replaced.
R Make sure that theve nt hose is alw ays con-
nected tothe original opening on the side of
th e batter y.
Fi t any existing or supplied cell caps. Breakdown assistance
449 449

#
Dispose of operating 0uids in an environ-
mentally responsible manner. Operating 0uids include
thefo llowing:
R fuels
R DeNOx agent AdBlue ®
forex haust gas aTer-
treatment
R lubricants
R coolant
R brake 0uid
R windscreen washer 0uid
R climate cont rol system refrigerant
Only use products appro vedby Mercedes-Benz.
Damage caused bythe use of products that ha ve
not been app rove d is not co veredby the
Mercedes-Benz warranty or goodwill gestu res.
The operating 0uids appr ovedby Mercedes-Benz
can be identi/ed bythefo llowing inscriptions on
th e container:
R MB-F reigabe (e.g. MB-F reigabe 229.51)
R MB-Appr oval (e.g. MB-A pproval 229.51) Fu
rther information on appr oved operating 0uids:
R inthe Mercedes-Benz Speci/cations for Oper-
ating Fluids byentering the designation
- at https://be vo.mercedes-benz.com
- inthe Mercedes-Benz BeVo App
R Ataqu ali/ed specialist workshop &
W WARNING
ARNING Risk of /re or explosion from
fuel
Fu els are highly 0ammable. #
Fire , naked 0ames, smoking and creating
spar ksmust be avoided. #
Before and during refuelling, switch o.
th eve hicle and, if /tted, the stationary
heater. &
W
WARNING
ARNING Risk of injury from fuels
Fu els are poisonous and hazardous toyour
health. #
Do not swallow fuel or let it come into
contact with skin, eyes or clo thing. #
Do not inhale fuel vapour. #
Keep children away from fuel. #
Keep doors and windo wsclosed during
th ere fuelling process.
If yo u or other people come into contact with
fuel, obser vethefo llowing: #
Immediate lyrinse fuel o. your skin with
soap and water. #
If fuel comes into contact with your eyes,
immediately rinse them thoroughly with
clean water. Seek medical at tention
immedia tely. #
Ifyo u swallow fuel, seek medical atten-
tion immediatel y.Do not induce vomit-
ing. #
Change immediately out of clo thing that
has come into contact with fuel. Flexible-fuel
vehicles can be refuelled wi th thefo l-
lowing fuel types:
R unleaded petrol
R E85 fuel 482 482
Te
ch nical data

Climat
Climat
e contr
e contr ol
ol Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/conseq uences and
uences andM
MSolutions
Solutions
&
inoperative See Owner's
Man. *T
he stationary heater is temp orarily malfunctioning. #
When theve hicle is stationary on a le vel sur face and the engine has cooled down, make up tofour attem ptsto
switch on the stationary heater, waiting se veral minutes between each attem pt. #
Ifth e stationary heater does not switch on, consult a quali/ed specialist workshop.
% The stationary heater cann otbe activated if the outside temp erature is abo ve15°C.
& inoperative Battery low *T
he on-board elect rical system voltage is too lo w.
The stationary heater has switched itself o.. #
Drive an extended distance until the battery has reached a su1cient charge leve l again.
&
Inoperative Refuel vehicle *T
here is too little fuel in the fuel tank. The stationary heate r cannot be switched on. #
Refuel theve hicle. 506 506
Displ
aymessages and warning/indicator lamps

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
á
ð
Ä
¬
Ô
temporarily unavailable
Camera view restricted *T
he view of the multifunction camera is restric ted. Possible causes:
R Dirt on the windscreen in the /eld of vision of the multifunction camera
R Heavy rain, snow or fog
R Mist on the inside of the windscreen: in cer tain we ather conditions, mist can form onthe inside of the windscreen
during cold times of year in particular.
% This mist on the windscreen will be remo ved automatically within a short time with the aid of a heater. The restric-
tion is temp orar y.
Driving systems and driving saf ety sy stems ma y be malfunctioning or temp orarily una vailable. The brake system, steer-
ing and drive system will continue tofunction normall y. #
Drive on
Once the causes of the problem are no longer present, the driving systems and driving saf ety sy stems will be available
again and the cor responding symbols will be switched o..
If th e display message does not disappear: #
Stop theve hicle in accordance with the tra1c conditions. #
Clean the windscreen, especially in the position of the multifunction camera (/ page 267). #
Restart theve hicle. Displ
aymessages and warning/indicator lamps
547 547

Tr
ailer operatio n..................................... 494 B
B
Bad w
Bad w eat
eather light
her light ......................................... 174
Bag hook
Bag hook..................................................... 155
Ball neck Ball neck Extending/r etra cting............................. .337
Extending/r etra cting (MBUX multime-
dia system)............................................ 339
B
B AS (Br
AS (Br ak
ake Assis
e Assis t Syst
t System)
em), Brake Assist
System, Braking assistance, Emer gency
braking........................................................ 269
Batt Batt ery
ery
Re mo tecont rol (stationary heater)......... 204
Batt
Batt er
ery (ke
y (ke y)
y)
Re placing................................................. 90
Batt
Batt er
ery (v
y (v ehicle)
ehicle)
Charging (Remo teOnline)...................... 213
No tes..................................................... 444
No tes (starting assis tance and charg-
ing)........................................................ 446
Batt
Batt er
ery oper
y oper ation
ation, Hybrid system.................. 208 Belt airbag
Belt airbag
Activation................................................ 46
Fu nction/no tes....................................... .50
Bicy
Bicy cle r
cle r ack
ack
Load capacit y........................................ 494
Tr ailer operatio n.................................... .342
Bonnet
Bonnet Function (active bonnet)......................... 424
Opening/closing.................................... 424
Boos
Boost pr t pressur
essur e (dr
e (driv
iver display
er display , Sport
, Sport
menu)
menu).......................................................... 347
Boo Boo t lid
t lid
Ac tivating/deactivating the limiter.......... 104
Closing.................................................... 99
HANDS-FREE ACCESS........................... 101
Opening................................................... 98
Opening dimensions.............................. 491
Po we r closing function............................. 99
Switching the separate locking fea-
ture on/o............................................. 103
Unlocking (emer gency key).................... 103
Br Br ak
ak e
e0uid
0uid
No tes..................................................... 489 Br
Br
ak
ak e f
e f or
orce disce distr tribution
ibution
EBD (Elect ronic Brake forc e Distribu-
tion).......................................................2 71
Br
Br ak
ak es
es
ABS (Anti-lock Braking System).............. 269
Ac tive Brake Assist................................. 290
Ad aptive brake lights.............................. 273
BAS (Brake Assist System).................... .269
Driving tips............................................ 215
EBD (Electronic Brake forc e Distribu-
tion).......................................................2 71
HOLD function....................................... 272
Limited braking e.ect (salt-treated
ro ads)................................................... .215
Ne w/replaced brake linings/brake
discs...................................................... 214
Po st-collision brak e.................................. 64
Ru nning-in no tes.................................... 214
Br Br eakdo
eakdo wn
wn
Assistance overview. ................................ 20
To w- starting........................................... 456
To wing away.......................................... 451
Tr anspo rting theve hicle........................ .453
Wheel chang e........................................ 470 594
594
Index

Information...........................................
.125
Moving the front passenger seat into
th ech au.eur position........................... .126
Moving the front passenger seat into
th e normal position................................ 130
Child safe
Child safe ty lock
ty lock
Re ar door................................................ .85
Re ar side wind ows................................... 86
Child seat
Child seat, Occupant saf ety
Appro val categories................................. 71
At tach ing (no tes)..................................... .70
Basic instructions.................................... 65
Fr ont passenger seat (no tes).................... 82
Fr ont passenger seat (without auto-
matic airbag shuto.)............................... .82
ISOFIX/i-Size (/tting)...............................74
No tes on risks and danger s...................... 66
Re ar airbag............................................. .77
Re commendations forch ild restraint
systems................................................... 69
Seats suitable for belt-secured child
re straint systems..................................... 79
Seats suitable for i‑Size child restraint
systems................................................... 74 Seats suitable
for ISOFIX child
re straint systems..................................... 72
Securing on the co-driver seat..................83
Securing on there ar seat......................... 81
To pTe ther................................................ 76
Childr Childr en
en
Av oiding dangers in theve hicle............... .66
Basic instructions.................................... 65
Chock
Chock, Chock Storage location..................................... 469
City lighting
City lighting.................................................. 174
Climat Climat e contr
e contr ol
ol
Ac tivating/deactivating.......................... 191
Ac tivating/deactivating (rear operat-
ing unit)................................................. 191
Ac tivating/deactivating the A/C func-
tion (MBUX multimedia system).............. 192
Ac tivating/deactivating the frag rance
system................................................... 194
Ac tivating/deactivating the synchro-
nisation function (MBUX multimedia
system).................................................. 193
Air-recirculation mode (with /ne parti-
cle pre/lter)...........................................1 93Au
tomatic control................................. .192
Calling up the air conditioning menu....... 191
Defrost.................................................. 192
Demisting the windscreen
(THERMOTRONIC).................................. 189
Demisting windo ws................................ 193
Fi ne particle status displa y..................... 191
Fr ont air vents........................................ 205
Glo vebox air vent.................................. 207
Immediate pre-entry clima tecont rol....... 200
Information on the windscreen heater.... 196
Inserting/re movingthe 0acon (fra-
gr ance system)...................................... 195
Ionisatio n.............................................. .194
No te...................................................... 189
Pre-entry climate control at depa rture
time....................................................... 198
Pre-entry climate control when the
ve hicle is unloc ked................................. 196
Re ar air vents......................................... 206
Re ar operating unit................................ 190
Re sidual heat......................................... 194
Re sidual heat (rear operating unit)......... .194
Setting (MBUX multimedia system)......... 191
Setting the air distribution
(THERMOTRONIC).................................. 189 596 596
Index

Setting
the air0ow (THERMOTRONIC)..... 189
Setting the frag rance system.................. 195
Setting thete mp erature
(THERMOTRONIC).................................. 189
St ationary heater/ ventilation................. 201
Switching there ar wind owheater
on/o. (THERM OTRO NIC).......................1 89
THERMOTRONIC control panel............... 189
Ve ntilating theve hicle (con venience
opening)................................................ 106
Coc Coc kpit
kpit, Dashboard
Overview................................................ 6, 8
Collision det
Collision det ection (park
ection (parked v
ed vehicle)
ehicle)
Information.................................... 264, 265
Combination switch
Combination switch ..................................... 171
Com
Com ponent-speci/c
ponent-speci/c inf
infor
ormation
mation................... 479
Cont
Cont ent shar
ent shar ing menu
ing menu
Overview................................................ 367
Contr
Control elements ol elements
To uch-sensitive........................................ 25
Conv
Conv enience closing
enience closing.................................... 107
Conv
Conv enience opening
enience opening................................... 106 Coolant (engine)
Coolant (engine)
Levelch eck............................................ 428
No tes..................................................... 489
Cop
Cop yr
yright
ight....................................................... 44
Cor
Cor ner
nering light
ing light............................................. 173
Cr
Cr osswind Assi st
osswind Assist
Fu nction/no tes...................................... 270
Cup holder
Cup holder Switching the cooling/heating func-
tion on/o.............................................. 159
Cushionbag
Cushionbag.................................................... 53 D
D
Dashcam
Dashcam Notes..................................................... 395
Selecting a USB device......................... .396
St arting/stopping a video recording...... .396
Dat
Dat a acq
a acq uisition
uisition
Ve hicle..................................................... 41
Dat
Dat a pr ot
a pr otection r
ection r ights
ights
Data storag e............................................ 44
Dat
Dat a st
a st or
orage
age
Data pr otection rights............................. .44Electronic control units............................ 41
Online services.......................................
.43
Ve hicle..................................................... 41
Deactiv Deactiv ating t
ating the alar
he alar m (AT
m (ATA)
A)........................ .115
Declar
Declar ation of conf
ation of conf or
ormity
mity
Electromagnetic compatibility.................. 29
Impor ter addresses.................................. 36
Jack......................................................... 36
Speci/c absor ption rate........................... 29
TIREFIT kit................................................ 37
Wi reless vehicle component s................... 29
Decor Decor ativ
ative f
e foil (cleaning ins
oil (cleaning instr tructions)
uctions)........... 432
Defr
Defr os
ost functiont function ........................................... 192
Des
Destination entry tination entry, Navigation
Entering a POI or addre ss....................... 390
Diagnos
Diagnos tics connection
tics connection , On-board diag-
nostics inter face............................................ 37
Diesel
Diesel Low outside temp eratures...................... 484
No tes..................................................... 484
DIGIT
DIGIT AL LIGHT
AL LIGHT
Ac tive headlamps................................... 172
Assistance functions.............................. 174 Index
597
597