2020 MERCEDES-BENZ S-CLASS SALOON LONG climate control

do not use
theke y and keep it away
from children. #
If batteries are swallo wed, seek medical
attention immediately. +
ENVIRONMEN
TALNO TEEnvironmental
dama gedue toimproper disposal of bat‐
te ries Batteries conta
intoxic and cor ro‐
sive subs tances. #
Ta
ke dischar ged batteries to a
qu alified specialist workshop or to a
collection point for used batteries. Re
quirements:
R One CR2450 lithium battery #
Push a pointed object into recess 1. #
Slide battery co ver2 backwards in the
direction of the ar row. #
Insert new battery 3with the lettering
fa cing up wards. #
Slide battery co ver2 inthe opposite direc‐
tion tothe ar row onto there mo tecontrol
until the battery co ver engages. Problems with
there mo tecont rolfo r the
st ationary heater/ventilation
FA IL¨ ¨ appea rson there mo tecont rol dis‐
play
Po ssible cause:
R The signal transmission between the trans‐
mitter and there cei ver is malfunctioning. #
Change your position in relation totheve hi‐
cle, moving closer if necessar y.
FA IL appea rson there mo tecont rol display
Po ssible cause:
R The star ter battery is not suf ficiently
ch arge d. #
Char gethest ar ter batter y.
Po ssible cause:
R The outside temp erature is higher than
15 °C. #
Use thest ationary heater on ly ifthe outside
te mp erature is below 15°C. 184
Climate cont rol

Po
ssible cause:
R The fuel tank is not su fficiently filled. #
Refuel at the nearest filling station.
FA IL¯
¯ appea rson there mo tecont rol dis‐
play
Po ssible cause:
R There is a malfunction in thest ationary
heater. #
Have thest ationary heater checked at a
qu alified specialist workshop. Air
vents Ad
justing the front air vents &
WARNING Risk of bu rns and frostbite
due tobeing too close tothe air vents
Ve ry hot or very cold air can flow from the air
ve nts. #
Makesure that all vehicle occupants
alw ays maintain a suf ficient di stance
from the air vents. #
If necessa ry, direct the air flow to
ano ther area of theve hicle interior. To
guarantee theflow of fresh air thro ugh the air
ve nts into theve hicle interior, comply with the
fo llowing:
R Alw ayske ep theve nts and vent grilles in the
ve hicle interior free.
R Keep the air inlet free of residue build-up
(/ page 353). #
Toopen the centre and side air vents:
press button 1.
The thre e indicator lamps on the button will
light up. The air vents will be opened com‐
pl et ely. Climate control
18 5

#
Toopen the side air vents in there ar:
press button 1.
If th e button is flush with the side trim, the
side air vent is open. #
Toclose the side air vents in there ar:
press button 1again.
If th e button pr otru des from the side trim,
th e side air vent is closed. #
Toadjust the airflow direction of the side
air vents: hold air vent 2 inthe cent reand
mo veit up or down or tothe left or right.
Opening or closing the air vent in thegl ove
box
* NO
TEDama geto te mperature-sensitive
objects in theglove box Te
mp erature-sensitive objects stored in the
gl ove box may be damaged bythe air vent
located inside theglove compa rtment. #
Close the air vent when you heat the
ve hicle. #
Athigh outside temp eratures, open the
air vent and switch on the A/C func‐
tion. The automatic climate control must be switched
on tocool theglove box. 1
Airvent controller
2 Airvent #
Toopen or close: turn controller1tothe
ri ght or left. Climate control
187

#
Make sure that when the position of
driver's seat is being adjus ted using the
multimedia sy stem, no people or body
parts are in the seat's range of mo ve‐
ment.
If th ere is a risk of someone becoming trap‐
ped, stop the adjustment process immedi‐
ately: #
a)Tapth ewa rning message on the cen‐
tral displa y.
or #
b) Press a memory position button or a
seat adjustment switch on the driver's
door.
The adjustment process will be stop‐
ped. The driver's seat is equipped with an access pre‐
ve nter.
If th e driver's door is open, the driver's seat will
not be set af ter calling up the driver's profile. User profiles and user-specific content
Prerequisites
forth eve hicle owner:
R You ha vea Mercedes me user account.
R You ha vea Mercedes me PIN.
R You ha veagreed tothete rm s of use.
User profiles sa vepersonal settings. If theve hi‐
cle is used byseveral people, a person can
ch ange their profile settings without changing
th e settings of other users.
Yo u can individualise a user profile in theve hicle
using the set-up assis tant or using the settings
in your user profile. Some settings, e.g. the
Mercedes me PIN and a profile pho toare made
in the Mercedes me app or in the Mercedes me
Po rtal.
User-specific con tent and applications wi thper‐
sonal data are pr otected bydiffere nt le vels of
security. Toaccess pr otected conte nt,the
Mercedes me PIN and, depending on theve hicle
equipment, biometric sensors can be used.
% The security le vel is set bythe multimedia
sy stem and calculated from the combination of all sensor inputs. Some security le
vels
cannot be turned off.
% When a user profile is activated, thefo llow‐
ing personalised com fort systems, forex am‐
ple, can be adjus ted or their settings loaded:
R Seat
R Ambient light
R Outside mir rors
R Blinds
R Air conditioning adjustment
If th e user profile is activated when driving
th en the driver's seat position will not be
adjus ted.
Depending on theve hicle equipment you can, as
a user, sa vethefo llowing settings, forex ample:
R Driver's seat, steering wheel and mir ror set‐
tings
R Climate control
R Ambient lighting
R Radio (including station list)
R Suggestions and favo urites 308
MBUX multimedia sy stem

%
The display message does not appear every
time a software upda teis ins talled.
In rare cases, an er ror can occur during the
ins tallation. The multimedia sy stem automati‐
cally attem ptsto restore the pr evious version.
If it is not possible torestore the pr evious ver‐
sion, the display messages shown abo veappear
eve rytime the engine is star ted.
Fa ilure of the central display
If th e cent ral display fails or the display message
shown abo veis shown continuousl y,se veral sys‐
te ms such as there ve rsing camera,
PA RKTRONIC or climate cont rol are no longer
av ailable. Drive on carefully and consult a spe‐
cialist workshop as soon as possible.
Fa ilure of the driver display
If th e driver display fails or there is a malfunc‐
tion, you may not recognise limitations in the
functions of sy stems releva nt tosaf ety or the
speed displa y,forex ample. The operating saf ety
of theve hicle may be impaired. Drive on care‐
fully and ha vetheve hicle checked at a qualified
specialist workshop immediately (/ page 502).Fu
rther information about software updates can
be found at https://me.secure.mercedes-
benz.com. Setting up a
Wi-Fi hotspot Re
quirements:
R Wi-Fi is acti vated on the multimedia sy stem
and the communication device tobe connec‐
te d.
R The communication device tobe connec ted
supports at least one of the types of connec‐
tion described.
The connection types shown depend on the
device tobe connec ted. The function must
be suppor tedby the multimedia sy stem and
by the device tobe connec ted. The type of
connection es tablished must be selected on
th e multimedia sy stem and on the device to
be connec ted.
% Some functions may firs t need tobe activa‐
te d on the communication device being con‐
nected. More de tailed information can be fo
und in the manufacturer's operating
instructions.
% The use of theve hicle data tariff by extern al
devices is not available in all countries.
Multimedia sy stem:
4 © 5
Settings 5
System
5 Internet and Bluetooth #
Select Wi-Fi.
The controller is totheright: Wi-Fi is
switched on.
When Wi-Fi is switched on, you can connect the
multimedia sy stem with extern al hotspots or
make it available as a hotspot forex tern al devi‐
ces.
When Wi-Fi is switched off, it is not possible to
es tablish a hotspot connection.
When Wi-Fi is switched off, no connection can
be es tablished with the MBUX rear tablet.
% The availability of the functions is dependent
on the count ry. MBUX multimedia sy
stem 313

Climate control
Displ
aymessages
Possible causes/consequences and M
MSolutions
& inoperative See Owner's
Man. *T
hestationary 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 thest ationary heater, waiting se veral minutes between each attem pt. #
Ifth est ationary heater does not swit chon, consult a qualified specialist workshop.
% The stationary heater cannot be activated if the outside temp erature is abo ve15°C.
& inoperative Battery low *T
he on-board electrical sy stem voltage is too lo w.
The stationary heater has swit ched itself off. #
Drive an extended di stance until the battery has reached a suf ficient charge leve l again.
&
Inoperative Refuel vehicle *T
here is too little fuel in the fuel tank. The stationary heater cannot be swit ched on. #
Refuel theve hicle. Display messages and
warning/indicator lamps 501

Ad
justing (rear)..................................... .186
Glove box.............................................. .187
Air vents
see Air vents
Ai r-conditioning sy stem
see Climate control
Air-recirculation mode.............................. 175
Air-water duct Keeping free.......................................... 353
Airbag Activation................................................. 41
Belt airbag............................................... 44
Centre airbag (driver, front passen ger)....47
Fr ont airbag (driver, front passenger)...... 47
Ins tallation locations.............................. .47
Knee airbag............................................ .47
Overview................................................. 47
PA SSENGER AIR BAG indicator lamp....... 52
Pr otection................................................ 48
Re duced pr otection.................................49
Side airba g.............................................. 47
Wi ndow airba g......................................... 47
Airflow Setting................................................... 172AIRM
ATIC
Setting.................................................. .258
Suspension........................................... 258
Alarm sy stem
see ATA (anti-theft alarm sy stem)
All-wheel drive see 4MATIC
Alternative route
see Route
Ambient lighting Setting (MBUX multimedia sy stem)....... 16 2
Android Auto
see Smartphone integration
Animals Pets in theve hicle................................... 76
Anti-lock braking sy stem
see ABS (Anti-lock Braking Sy stem)
Anti-skid chains
see Snow chains
Anti-theft pr otection
Ad ditional door loc k................................ .81
Immobiliser........................................... 104Anti-theft pr
otection
see ATA (anti-theft alarm sy stem)
Anticipatory occupant pr otection
see PRE- SAFE®
(anticipatory occu‐
pant pr otection)
see PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus)
Apple CarPlay ®
see Smartphone integration
Assistance sy stems
see Driving saf ety sy stem
ASS YST PLUS
Battery disconnection pe riods.............. 348
Displaying the service due dat e............. 347
Fu nction/no tes..................................... 347
Re gular maintenance work.................... 347
Special service requ irements................ 347
ATA (anti-theft ala rmsystem)
Deactivating the alarm.......................... 105
Fu nction................................................ 104
Fu nction of interior pr otection............... 105
Priming/deactivating interior pr otec‐
tion........................................................ 106 Index
569

Battery (k
ey)
Re placing................................................ 79
Bat tery (vehicle)
Charging................................................ 372
Charging (Remo teOnline)...................... 19 0
No tes....................................................3 68
No tes (s tarting assis tance and
ch arging)............................................... 370
Re placing...............................................3 73
St arting assis tance................................ 372
Belt see Seat belt
Belt airbag Activation................................................. 41
Fu nction/no tes....................................... 44
Bic ycle rack
Load capacity........................................ 490
Tr ailer operation.................................... 288
Blo wer
see Climate control
BlueTEC see AdBlue ® Boot box
see EAS Y-PA CK boot box
Boot lid Activating/deactivating the boot lid
opening limiter........................................ 93
Closing....................................................88
HANDS-FREE ACCES S............................. 90
Locking separately.................................. 92
Opening................................................... 87
Opening dimensions.............................. 488
Po we r closing function............................ 88
Un locking (emer gency key)..................... 92
Brake Assist Sy stem
see BAS (Brake Assi stSystem)
Brake fluid Notes....................................................4 86
Brake forc e distribution
EBD (Elect ronic Brake forc e Distribu‐
tion).......................................................2 24
Brakes ABS (Anti-lo ckBraking Sy stem).............2 21
Ac tive Brake Assi st................................ 24 3
Ad aptive brake light s............................ .226
BA S (Brake Assi stSystem).................... 222 Driving tips............................................
19 2
EBD (Electronic Brake forc e Distribu‐
tion)....................................................... 224 HOLD function.......................................2 24
Limited braking ef fect (salt-trea ted
ro ads).................................................... 19 2
New/replaced brakepads/brake discs.. 191
Po st-collision brake................................. 56
Ru nning-in no tes.................................... 191
Braking assistance see BAS (Brake Assi stSystem)
Breakdown Overview of the help functions................ 18
To w- starting.......................................... 378
To wing away.......................................... 375
Tr ansporting theve hicle........................ 376
Wheel chang e....................................... .391
Breakdown see Flat tyre C
Calls Mercedes me........................................ 326 Index
571