2021 MERCEDES-BENZ S-CLASS SALOON LONG ignition

&
W
WARNI NG
ARNI NGRisk of injury due toobjects
placed in front of there ar airbag co ver
Objects in front of there ar airbag co ver can
hinder or pr eventthe cor rect deployment of
th ere ar airbag which is integ rated into the
front seat.
The rear airbag can po tential lydeploy in an
uncontrolled manner and can cause additional
inju ryto the person on the front seat. #
Always st owand secure objects cor-
re ctl y. Obser
vethe no tes on loading theve hicle
(/ page 148).
Disabling/enabling t Disabling/enabling t he r
he rear airbag
ear airbag
If, aTer consideration of the no tes and instruc-
tions in this Owner's Manual, you deem the addi-
tional occupant pr otection pr ovided bythere ar
airbag unnecessar y,there ar airbag can be disa-
bled. The
rear airbags should be disabled in thefo llo w-
ing situations in particular:
R Arear wa rd-facing child restraint system is
secu red on the leT or right rear seat.
R The person in there ar seat, forex ample a
ch ild, cannot sit in the cor rect seat position.
Their feet and legs are po tential lyin the
deployment area of there ar airbag.
R Due tothe position of the front seats, an
occupant's legs, forex ample, are in the
deployment area of there ar airbag.
R Objects are stored behind the front seat which
are in the deployment area of there ar airbags.
Yo u can disable or enable there ar airbag via the
multimedia system (/ page 63). F F
unction of t
unction of t he REAR SEA
he REAR SEA T AIRBA
T AI RBA G indicat
G indicat or
or
lam
lam ps
ps l
LeT rear seat
k Right rear seat
When the ignition is switched on, a self-test is per-
fo rm ed during which the REAR SEAT AIR BAG ON
and OFF indicator lamps light up simultaneousl y.62
62
Occupant saf
ety

Soc
ke
Soc kets
ts Using t
Using t
he 12 V soc ket
he 12 V soc ket R
R
eq
eq uir
uir ements:
ements:
R Only connect devices up toa maximum of
180 W (15 A).
Depending on theve hicle equipment, there are 12
V soc kets in various places in theve hicle, such as
th e centre console, the glo vecompartment and
th e boot. #
Fold up soc ket. #
Inse rtthe plug of the device.
If yo u ha veconnected a device tothe 12 V
soc ket, lea vethe co ver of the st owage compart-
ment open. Using t
Using t
he 230 V soc ke
he 230 V soc ket in t
t in t he r
he rear passeng
ear passeng er
er
com
com par
partment
tment &
D
DAN
AN GER
GER Risk of fatal injury due todam-
aged connecting cable or soc ket
Yo u could receive an elect ric shock when pull-
ing the connecting cable or the 230 V po wer
soc ket out of the trim, or if it is damaged or
we t. #
Use only connecting cables that are dry
and free of damage. #
When the ignition is switched o., make
sure that the 230 V po wer soc ket is dr y. #
Immediately ha vethe 230 V po wer
soc ketch ecked or replaced at a quali/ed
specialist workshop if it is damaged or
has been pulled out of the trim. #
Never plug the connecting cable into a
230 V po wer soc ketth at is damaged or
has been pulled out of the trim. &
D
DAN
AN GER
GER Risk of fatal injury due toincor-
re ct handling of the soc ket
Yo u could receive an elect ric shock in particu-
lar:
R ifyo ure ach into the soc ket.
R ifyo u insert unsuitable devices or objects
into the soc ket. #
Do not reach into the soc ket. #
Only connect suitable devices tothe
soc ket. R
R
eq
eq uir
uir ements:
ements:
R Only connect devices with a suitable plug
which conforms tothe standards speci/c to
th e country you are in.
R Do not use multiple soc ket outlets.
% Only devices up toa maximum of 150 watts
(0.65 A) can be connec ted. 160 160
Seats and st
owing

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

#
Toavo id creating ano ther electrostatic
ch arge , do not get into theve hicle again
during there fuelling process. &
W
WARNING
ARNING Risk of /re from fuel mixture
Ve hicles with a diesel engine:
If yo u mix diesel fuel with petrol, the 0ash
point of the fuel mixture is lo werth an that of
pure diesel fuel.
While theve hicle is running, component parts
in theex haust system may overheat without
wa rning. #
Neverre fuel using petrol. #
Never mix petrol with diesel fuel. *
N NOOTE
TE Damage caused bythe wrong fuel Ve
hicles with a petrol engine:
Even small amounts of the wrong fuel could
re sult in damage tothe fuel system, the
engine and the emission control system. #
Only refuel using unleaded, sulphur-free
spar k-ignition engine fuel that conforms to
European EN 228, or an equivalent
speci/cation.
Fu el of this speci/cation may contain up to
10% ethanol. Your vehicle is suitable for use
with E10 fuel.
Ne verre fuel wi thone of thefo llowing fuels:
R Diesel
R Regular petrol with an octane number
lo we rth an 91 RON
R Petrol with more than 10% ethanol byvol-
ume, e.g. E15, E20, E85, E100
R Petrol with more than 3% me thanol byvol-
ume, e.g. M15, M30
R Petrol with additives containing me tal
If yo u ha veacciden tally refuelled wi th the
wrong fuel: #
Do not switch on theve hicle. #
Consult a quali/ed specialist workshop. *
N NOOTE
TE Damage caused bythe wrong fuel Ve
hicles with a diesel engine:
Even small amounts of the wrong fuel could
re sult in damage tothe fuel system, the
engine and the emission control system. #
Only refuel using sulphu r-free diesel fuel
th at conforms toEuropean standard
EN 590, or an equivalent speci/cation.
In count ries without sulphur-free diesel
fuel, refuel using only lo w-sulphur diesel
fuel with a sulphur content less than
50 ppm.
Ne verre fuel wi thone of thefo llowing fuels:
R Petrol
R Marine diesel
R Heating oil
R Pure bio-diesel or vege table oil
R Para1n or kerosene
If yo u ha veacciden tally refuelled wi th the
wrong fuel: 236 236
Driving and parking

%
V
Vehicles wit
ehicles wit h ambient lighting or activ
h ambient lighting or activ e ambi-
e ambi-
ent lighting:
ent lighting: theWarning assistance ofthe
ambient lighting can be activated and deacti-
va ted (/ page 179).
% The warning assistance can di.er depending
on the equipment and may vary according to
th e setting.
The exitwa rning is only available when Active
Blind Spot Assist is activa ted and up toa maxi-
mum of thre e minutes aTer the ignition has been
switched o.. The exitwa rning is no longer availa-
ble once thewa rning lamp in the outside mir ror
0ashes thre e times.
The exitwa rning is only an aid and not a substi-
tute forth e attention of vehicle occupants. The
re sponsibility for opening and closing the doors
and for leaving theve hicle remains with theve hi-
cle occupants.
Syst Syst em limits
em limits
Ac tive Blind Spot Assist may be limited in thefo l-
lowing situations, in particular:
R ifth ere is dirt on the sensors or the sensors
are obscured R
in poor visibility, e.g. due tofog, heavy rain or
snow
R ifth ere are nar row vehicles, e.g. bicycles or
mo torbikes
R ifth ero ad has very wide or nar row lanes
R ifve hicles are not driving in the middle of their
lane
Wa rnings may be issued in er ror when driving
close tocrash bar riers or similar continuous lane
borders. Alw ays make sure that there is su1cient
distance tothe side forot her tra1c or obs tacles.
Wa rnings may be inter rupted when driving along-
side long vehicles, forex ample lor ries, for a pro-
longed time.
Ac tive Blind Spot Assist is not operational when
re ve rsege ar is engaged.
Ac tive Blind Spot Assist is not operational if trans-
port equipment, forex ample a trailer or bicycle
ra ck , is attached tothe trailer hitch and the elec-
trical connection has been cor rectly es tablished. Ad
ditionall y,theex itwa rning may be limited in the
fo llowing situations:
R when the sensors are co veredby adjacent
ve hicles in nar row parking spaces
R when people approach theve hicle
R intheev ent of stationary or slo wlymoving
objects
F F unction of t
unction of t he br
he brak
ake application of A
e application of A ctiv
ctive Blind
e Blind
Spo
Spo t Assist
t Assist
If Ac tive Blind Spot Assist de tects a risk of a side
impact in the monitoring range, a cours e-correct-
ing brake application is car ried out. This is
designed tohelp youavo id a collision.
The course-cor recting brake application is availa-
ble in the speed range between appro ximately
30 km/h and 200 km/h. &
W
WARNING
ARNING Risk of accident despi tebrake
application of Active Blind Spot Assist
A course-cor recting brake application cann ot
alw ays pr event a collision. #
Always steer, brake or accelerate your-
self, especially if Active Blind Spot Assist 300
300
Driving and parking

#
T
To mov
o mov e t
e the digit
he digit al map:
al map: touch the
to uchscreen and mo ve your /ngerin any
direction. #
T
To sav
o sav e t
e the des
he destination in t tination in t he digit
he digital map:
al map:
to uch theto uchscreen and hold until a mes-
sage is shown. #
T
To call up t
o call up t he home scr
he home scr een:
een:swipe up with
th re e /n gers in an application. #
T
To se
o se t t
t the v
he v olume on a scale:
olume on a scale: touch the
to uchscreen and mo vethe /n gertothe leT or
ri ght. #
T
To call up a global menu in t
o call up a global menu in t he applications:
he applications:
to uch theto uchscreen and hold until the
Options menu appears. F
F
unction of t
unction of t he MBUX V
he MBUX Voice Assist
oice Assistant
ant &
W
WARNING
ARNING Risk of distraction due toinfor-
mation systems and communications
equipment
If yo u operate information systems and com-
munications equipment integ rated in theve hi-
cle when driving, you could be distracted from th
e tra1c situation. This could also cause you
to lose control of theve hicle. #
Only operate this equipment when the
tra1c situation pe rmits. #
Ifyo u cannot be sure of this, stop the
ve hicle in accordance with the tra1c
conditions and operate the equipment
with theve hicle stationar y. Fo
ryo ur ow n sa fety, alw ays obser vethefo llowing
points when operating mobile communications
equipment and especially your voice control sys-
te m:
R Obser vethe legal requ irements forth e coun-
try in which you are driving.
R Ifyo u use thevo ice control system in an emer-
ge ncy your voice can change and your tele-
phone call, e.g. an emer gency call, can
th ereby be unnecessarily dela yed.
R Familiarise yourself with thevo ice control sys-
te m functions before starting the journe y.
Using the MBUX Voice Assistant, vehicle func-
tions and various areas of the MBUX multimedia
system can be operated byvoice input. The MBUX Vo
ice Assistant is operational appr oximately half a
minute aTer switching on the ignition and can be
operated from all seats. Further information and
ex amples of voice commands can be found in the
Digital Owner's Manual.
Yo u can use the MBUX Voice Assistant tooperate
th efo llowing functions depending on theve hicle
equipment:
R Telephone
R Text message and e-mail
R Navigation
R Radio, media, TV
R Vehicle functions
R Online functions
Fu ll functionality of thevo ice control system is
only available foryo u with activation of online
vo ice control. 370 370
MBUX multimedia system

&
W
WARNI NG
ARNI NGRisk of burns when opening the
bonnet
If yo u open the bonnet in theev ent of an over-
heated engine or /re in the engine compart-
ment, thefo llowing situations may occur:
R You may come into contact with hot gases.
R You may come into contact with other
escaping hot operating 0uids. #
Before opening the bonnet, allow the
engine tocool down. #
Intheev ent of a /re in the engine com-
partment, keep the bonnet closed and
call the /re service. &
W
WARNING
ARNING Risk of injury due tomoving
parts
Components in the engine compartment may
continue torun or start unexpectedly even
when the drive system is switched o..
Obser vethefo llowing if you must open the
bonnet: #
Switch o. theve hicle. #
Neverto uch the danger zones sur round-
ing moving components, e.g. thero tation
area of thefa n. #
Remo vejewe llery and watches. #
Keep items of clo thing and hair away
from moving pa rts. &
W
WARNING
ARNING Risk of injury from touching
components under voltage
The ignition system and the fuel injection sys-
te m operate at high voltage. You could receive
an elect ric shoc k. #
Neverto uch ignition system or fuel injec-
tion system components when theve hi-
cle is switched on. The live components include
thefo llowing, for
ex ample:
R Ignition coils
R Fuel injectors R
Electric lines tothe ignition coils and the fuel
injectors &
W
WARNING
ARNING Risk of burns from hot compo-
nent parts in the engine compartment
Cer tain component parts in the engine com-
partment can be very hot, e.g. the engine, the
cooler and parts of theex haust system. #
Allow the engine tocool down and only
to uch component parts described in the
fo llowing. &
W
WARNING
ARNING Risk of injury from using the
windscreen wipers when the bonnet is
open
If th e windscreen wipers start moving when
th e bonnet is open, you could be trapped by
th e wiper linkage. #
Always switch o. the windscreen wipers
and theve hicle /r stifyo u need toopen
th e bonnet. Maintenance and care
425
425

#
A1x part 1ofthe TIREFIT stic kerto the
inst rument clus ter within the driver's /eld of
vision. #
A1x part 2ofthe TIREFIT stic ker near the
va lve on the wheel with the defective tyre. #
Pull plug 6with the cable and hose 5out
of the tyre in0ation compressor housing. #
Push the plug of hose 5into 0an ge4 of
tyre sealant bottle 3until the plug engages. #
Place tyre sealant bottle 3head down wards
into recess 2ofthe tyre in0ation compres-
sor. #
Remo vetheva lve cap from valve 7 onthe
fa ulty tyre. #
Screw /lling hose 8onto valve 7. #
Insert plug 6into a 12 V soc ket in your vehi-
cle. #
Switch on the ignition. #
Switch on the tyre in0ation compressor using
On/O. switch 1.
The tyre is in0ated. Firs t, tyre sealant is pum-
ped into the tyre. The pressure may brie0y rise
to appr oximately 500 kPa (5 bar/73 psi).
Do no
Do no t switc
t switc h
ho.
o. t
the tyr
he tyr e
ein0ation
in0ation com
compr
pressor
essor
dur
dur ing t
ing t his phase!
his phase! #
Let the tyre in0ation compressor runfo r a
maximum of ten minutes.
The tyre should then ha veattained a tyre pres-
sure of at least 200 kPa (2.0 bar/29 psi).
If tyre sealant leaks out, make sure you clean the
a.ected area as quickly as possible. It is prefera-
ble touse clean water.
If yo uget tyre sealant on your clo thing, ha veit
cleaned as soon as possible with per chloroe thy-
lene.
If, If, aTer
aTer t
ten minut
en minut es, a tyr
es, a tyre pr
e pressur
essur e of 200 kPa
e of 200 kPa
(2.0 bar/29 psi) has no
(2.0 bar/29 psi) has no t been att
t been attained:
ained: #
Switch o. the tyre in0ation compressor. #
Unscr ewthe /lling hose from theva lve of the
defective tyre. 442
442
Breakdown assistance