2021 MERCEDES-BENZ S-CLASS SALOON LONG climate control

If it is not possible
torestore the pr evious version,
th e display message shown abo veappears every
time theve hicle is star ted.
F
F ailur
ailur e of t
e of t he dr
he driv
iver display
er display
If th e driver display fails or there is a malfunction,
yo u may not recognise limitations in the functions
of systems releva nt tosaf ety or the speed displa y,
fo rex ample. The operating saf ety of theve hicle
may be impaired. Drive on carefully and ha vethe
ve hicle checked at a quali/ed specialist workshop
immediately (/ page 515).
Fu rther information about soTware updates can
be found at https://me.secure.mercedes-
benz.com.
F F ailur
ailur e of t
e of t he centr
he centr al display
al display
If th e central display fails or the display message
shown abo veis shown continuousl y,se veral sys-
te ms such as there ve rsing camera, PARKTRONIC
or climate control are no longer available. Drive
on carefully and consult a specialist workshop as
soon as possible. Se
Se
tting up a W
tting up a W i-F
i-Fi ho
i ho tspot
tspot R
R
eq
eq uir
uir ements:
ements:
R The Wi-Fi function is acti vated on the multime-
dia system and the communication device to
be connected.
R The communication device tobe connected
supports at least one of the types of connec-
tion described.
The connection types shown depend on the
device tobe connected. The function must be
suppor tedby the multimedia system and by
th e device tobe connected. The type of con-
nection established must be selected on the
multimedia system and on the device tobe
connected.
% Some functions may /r stneed tobe activated
on the communication device being connec-
te d. More de tailed information can be found
in the manufacturer's operating inst ructions.
% The use of theve hicle data tari. by ex tern al
devices is not available in all countries. Multimedia system:
4 © 5
Settings 5
System
5 Internet and Bluetooth
% The availability of the functions is dependent
on the countr y. #
Select Wi-Fi.
The controller is totheright: Wi-Fi is switched
on.
When theWi -Fi function is switched on, you can
connect the multimedia system with extern al hot-
spots or make it available as a hotspot forex tern al
devices.
When theWi -Fi function is switched o., it is not
possible toestablish a hotspot connection.
When theWi -Fi function is switched o., no con-
nection can be established with the MBUX rear
ta blet.
% The data volume can be pur chased dir directl ectl y
y
fr
fr om a mobile phone ne
om a mobile phone ne tw
twor
ork pro
k pro vider
vider viathe
Mercedes me Portal.
% The use of theve hicle data tari. by ex tern al
devices is not available in all countries. 384
384
MBUX multimedia system

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
&
inoperative High-voltage
battery charging incom-
plete *T
he high- voltage battery is charging. Pre-entry climate control cannot be switched on. #
Wait until thech arging process has achie ved a minimum charge.
&
Inoperative Charge high-
voltage battery *T
hecharge ofthe high-voltage battery is too lo w.Pre-entry climate control cannot be switched on. #
Char gethe high-voltage batter y.
& Pre-entry climate control
via key available again
after starting vehicle *Y
ou ha veattem pted toswitch on pre-entry climate control more than twice with theve hicle switched o.. #
Start theve hicle forte n seconds.
Pre-entry climate control is operational again. Display message
s andwarning/indicator lamps
507 507

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
&
Pre-entry climate control
via key inoperative High-
voltage battery low *T
hecharge ofthe high-voltage battery is too lo w.Pre-entry climate control cannot be switched on. #
Char gethe high-voltage batter y.
When the high-voltage battery is su1ciently charge d, pre-ent ryclimate cont rol will be operational again. Hybr Hybr
id syst
id syst em
em Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/conseq uences and
uences andM
MSolutions
Solutions
u
Towing not permitted See
Owner's Manual *T
he drive system is malfunctioning. #
Have theve hicle transpo rted only using a transpor ter or trailer (/ page 451).508 508
Display messages and
warning/indicator lamps

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
Reduced drive system per-
formance See Owner's
Manual *T
he drive system switches toemer gency ope ration mode due toa malfunction. #
Drive on carefull y. #
Consult a quali/ed specialist workshop.
Û
Battery overheated Stop,
everybody out! Outdoors if
possible *T
he high- voltage battery has overheated. There is a risk of /re. #
Stop theve hicle immediately in accordance with the tra1c conditions. #
If possible, stop theve hicle in the open air and ensure that all vehicle occupants getout.
% Supporting vehicle functions may activate automaticall y,e.g. the air-recirculation mode as part of climate control. #
Do not continue driving. #
If smoke is present, lea vethe danger zone and call the /re service immediatel y. #
Consult a quali/ed specialist workshop even if there are no extern al signs of a /re.
Û
Malfunction *T
he drive system is malfunctioning. A warning tone will also sound. #
Consult a quali/ed speciali stwo rkshop.
Û
Malfunction Visit workshop *T
he drive system is malfunctioning. #
Consult a quali/ed specialist workshop. Displ
aymessages and warning/indicator lamps
511 511

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

¢
Max. speed 20km/h..................... 551
ð Maximum speed exceeded ............ 540
ç O................................................. 539
ë O................................................. 537
ï Operation only possible in
transmission position P .......................... 516
! Parking brake See Owner's
Manual..................................................5 33
! Parking brake Switch on vehicle
to release.............................................. 536
È passive......................................... 538
d Performance se verely limited........ 513
Ý Please wait 48 V battery charg-
ing......................................................... 561
6 Please wait Depressurising fuel
ta nk....................................................... 514
& Pre-entry climate control via key
av ailable again aTer starting vehicle....... 507
& Pre-ent ryclimate cont rol via key
inoperative High-voltage battery low....... 508 Ù
Rear axle steering cur rently
malfunctioning ....................................... 520
Ù Rear axle steering Malfunction
St op immediately...................................5 21
Ù Rear axle steering Malfunction
Vi sit workshop ....................................... 520
h Rectify tyre pressure ..................... 564
Ø Re/ll AdBlue See Owner ’sMan-
ual ......................................................... 566
! Release parking brake ...................535
ý Replace air cleaner ....................... 528
Á Replace key.................................. 500
8 Reser vefuel le vel.......................... 527
6 Restraint system malfunction
Consult workshop ................................. .496
ð Restric ted during trailer opera-
tion........................................................ 548
# Start theve hicle tocharge the
12 V battery........................................... 560 Ù
Steering malfunction Drive
carefully Visit workshop ........................ .519
Ù Steering malfunction Increased
ph ysical e.ort See Owner's Manual.......5 19
Ù Steering malfunction Stop
immediately See Owner's Manual ........... 520
d Stop Switch o. theve hicle ............ 513
# Stop vehicle Lea ve vehicle on to
ch arge the 12 V battery ......................... 560
É STOP Vehicle le velto o low............ 551
# Stop vehicle See Owner's Man-
ual......................................................... 559
Û Stop vehicle See Owner's Man-
ual......................................................... 560
ç suspended .................................... 539
: Switch o. lights............................ 504
: Switch on headlamps .................... 504
á temp orarily una vailable Camera
view restric ted....................................... 547 600 600
Index

Displaying
weather informatio n.............. 394
Moving................................................... 393
Selecting the map orientation................ 393
Setting the map scale............................ 393
Massag Massag e pr
e progr
ogrammes
ammes
Overview................................................ 136
Re setting the settings............................ 137
Selecting the front seats........................1 37
Maximum per Maximum per missiblegr
missible gross v
oss v ehicle w
ehicle w eight
eight... 480
MBUX Int
MBUX Int er
erior Assist
ior Assist ant
ant
Anticipatory exitwa rning........................ 374
Au tomatic preselection of the outside
mir ror. ................................................... 376
Calling up favo urites with the V pose......3 76
Operating the function with the
fa vo urites pose...................................... 376
Overview................................................ 371
Switching there ading light on/o.
(contactless).......................................... 374
Switching the sear chlight on/o.
(contactless). ......................................... 374
MBUX multimedia syst MBUX multimedia syst em
em
Ac tivating/deactivating snow chain
mode.................................................... .462 Ac
tivating/deactivating standby mode... 266
Ac tivating/deactivating the frag rance
system................................................... 194
Calling up the Zero La yer........................ 365
Collision de tection (par kedve hicle)
...................................................... 264, 265
Con/guring displ aysetting s.................... 351
Con/guring drive prog ram I................... .228
Coupling the steering wheel heater to
th e seat heating..................................... 141
Driver camera........................................ 377
Home screen......................................... 367
No tes..................................................... 361
Operating theto uchscreen..................... 368
Operating the Zero La yer........................ 365
Overview................................................ 361
Re storing (fac tory settings).................... 386
Setting Memo ryParking Assist............... 336
Setting route-based speed adap tation.... 283
Setting the air distribution...................... 192
Setting thefo ot we llte mp erature............ 192
Setting the frag rance system.................. 195
Setting there ar climate cont rol.............. 193
Setting the stationary heater/ventila-
tion........................................................ 202
Switching ionisation on/o..................... 194 Zero La
yer (function).............................. 362
Zero La yer (o verview)............................. 363
MBUX V MBUX V oice Assist
oice Assist ant
ant
Direct commands.................................. 360
E-mails................................................... 359
Fu nction........................................ 354, 370
Impr oving speech qualit y........................ 356
Langua gesetting.................................... 355
Look and Answer function..................... .360
Media voice commands.........................3 58
Message voice commands.....................3 59
Na vigation voice commands...................3 58
No tes on thevo ice commands............... 357
Online voice commands.........................3 59
Online voice control............................... 357
Operable functions................................. 355
Operating saf ety.................................... 354
Ra dio voice commands.......................... 358
Setting (MBUX multimedia system)......... 355
Te lephone voice controls........................ 358
Te xt message voice commands.............. 359
TV voice commands...............................3 58
Ve hicle voice commands........................ 359
Vo ice prom pting............................. 354, 371 Index
611 611

Re
gula tory radio identi/cation (Indo-
nesia).................................................... 479
Re gula tory radio identi/cation of
small component s.................................. 479
To ngue weight........................................ 494
To wing capacity (trailer operation ).......... 493
T T elephone
elephone
Authorising a mobile phone (Remo te
Pa rking Assist)....................................... 330
Connecting a mobile phone (Passk ey).... 400
Connecting a mobile phone (Secu re
Simple Pairing)....................................... 400
Fu nctions in thete lephone menu............ 400
No tes..................................................... 397
No tes on wireless charging (mobile
phone)................................................... 164
Operating modes................................... 399
Te lephone menu overview......................3 99
Vo ice commands (MBUX Voice Assis-
ta nt)..................................................... .358
Wi reless charging (mobile phone in
th ere ar)................................................ 166
Wi reless charging (mobile phone,
front)..................................................... 165 T T
elephon
elephon y oper
y operating modes
ating modes
Blu etoo th®
telephony............................. 399
Car telephon y........................................ 399
T
T em
em per
per ature
ature
Engine oil (driver displa y,Spo rtmenu)... .347
T
T em
em per
per atur
atur e (THERMO
e (THERMO TR
TRONIC)
ONIC)
Setting (climate control)......................... 189
Te
Te xt messag
xt messag es
es
Vo ice commands (MBUX Voice Assis-
ta nt)..................................................... .359
Thr
Thr ough-loading f
ough-loading f eature
eature
Locking.................................................. 154
Thr
Thr ough-loading f
ough-loading f eatur
eature in t
e in the r
he rear com-
ear com-
par
par tment
tment
Opening................................................. 153
TIREFIT kit
TIREFIT kit Declaration of conformity......................... 37
Storage location.................................... .440
Using..................................................... 440
T T oll syst
oll syst em
em
Wi ndsc reen............................................ 187
T
T ongue w
ongue w eight
eight.............................................. 494
T
T op Tet
op Tether
her...................................................... 76 T
T
opping up
opping up
Topping up AdBlue ®
.............................. .239
T
T orq
orq ue (dr
ue (dr iv
iver display
er display , Spor
, Sport menu)
t menu) .............. 347
T
T ouc
ouc h Contr
h Contr ol
ol
Driver's displa y...................................... 345
Operating.............................................. 368
T
T ouc
ouc h-sensitiv
h-sensitiv e contr
e controlsols................................. 25
T
T ouc
ouc hscr
hscr een
een
Operating.............................................. 368
Tow
Tow -awa
-a wa y pr ot
y pr otection
ection
Fu nction................................................ 116
Priming/deactivating............................. 116
Tow
Tow -bar syst
-bar syst em
em, Dinghy towing, Dr awbar,
Flat towing................................................... 344
Tow
Tow -st
-star
arting
ting................................................. 456
To
To wing away
wing away................................................. 451
To
To wing eye
wing eye
Fi tting.................................................... 456
St orage location..................................... 456
To
To wing met
wing met hods
hods................................... 450, 451
Tr
Tr a1c
a1c inf
infor
ormation
mation
Switching on the displa y......................... 394 620
620
Index