2021 MERCEDES-BENZ S-CLASS SALOON LONG change wheel

T
T
eac
eac hing in, editing and dele
hing in, editing and dele ting biome
ting biometr
tric data
ic data
The biometric data models are sa ved in the sen-
sors in theve hicle. If recognition has been taught-
in, this sensor ser ves as a cont ributory factor for
authentication on the multimedia system. #
Select Protect content . #
Select Facial recognition, Fingerprint recogni-
tion orVoice recognition.
% If necessar y,authenticate yourself on the mul-
timedia system.
A
A ut
ut henticating using f
henticating using f ace r
ace recognition
ecognition #
Close the driver's door or fasten the driver's
seat belt. #
Look at the driver display for about /ve sec-
onds.
Yo ur face is scanned. A message in the driver
display sho wswhe ther facial recognition was
successful or not. You can unlock your user
pro/le and pr otected applications with the
fa cial scan. A A
ut
ut henticating using
henticating using /ng
/nger
erpr
pr ints
ints #
Place and liT your /n gerseveral times on the
/ngerprint sensor under theto uchscreen
(/ page 361).
The /n geris scanned. If the scanning proce-
dure is successful, a message appears on the
cent ral displa y.Yo u can unlock your user pro-
/le and pro tected applications with your /n ger
print.
A
A ut
ut henticating using v
henticating using v oice r
oice recognition
ecognition #
Speak the sentence shown on the central dis-
play and follow theVo ice Assistant's inst ruc-
tions.
If th evo ice recognition was successful, a mes-
sage appears on the central displa y.Yo u can
unlock your user pro/le.
% Avoid backg round or disturbing noises during
vo ice recognition.
Dele Dele ting biome
ting biome tr
tric data
ic data #
Tap on E ,fo rex ample, behind Facial rec-
ognition. #
Select Yes. T
T
eac
eac hing in t
hing in t he v
he vehicle ke
ehicle key f
y f or
or pr
pro/le
o/le selection
selection #
Select Protect content . #
Select Key recognition. #
Have theke yre ady and follow the set-up
assistant's prom pts.
The user pro/le is lin kedto the selected key.If
yo u open theve hicle with theke y,the light,
mir ror and seat settings foryo ur user pro/le
are pre-activated. The keyyo u are cur rently
using for unlocking is used.
The key is only storedforth e driver and for
one user pro/le.
Selecting a user
Selecting a user
% When you call up your driver pro/le, the driv-
er's seat and the steering wheel can be set.
Yo u can cancel the setting process with the
fo llowing actions:
R Press Tap here to cancel. messageonthe
cent ral displa y.
R Press one of the seat operating buttons in
th e driver's door. #
Select Change user. MBUX multimedia system
381 381

#
Remo vethe /re extinguisher from the st owage
compartment. #
ATer removing the /re extinguisher, close the
co ver again. Flat tyre
Flat tyre
N
No
ot
tes on
es on 0at
0attyr
tyres
es &
W
WARNING
ARNING Risk of accident due toa 0at
tyre
A 0at tyre se verely a.ects the driving charac-
te ristics as well as the steering and braking of
th eve hicle.
T
T yr
yr es wit
es wit hout
houtr
run-0at
un-0at c
char
har act
acter
eristics:
istics: #
Do not drive with a 0at tyre. #
Change the 0at tyre immediately with an
emer gency spa rewheel or spare wheel.
Alternativel y,consult a quali/ed special-
ist workshop.
T
T yr
yr es wit
es wit h
hr
run-0at
un-0at c
char
har act
acter
eris
istics:
tics: #
Obser vethe information and warning
no tes on MOExtended tyres (run-0at
tyres). In
theev ent of a 0at tyre, thefo llowing options are
av ailable depending on your vehicle's equipment:
R V
Vehicles wit
ehicles with MOExt h MOExtended tyr
ended tyr es:
es:it is possible
to continue the journey for a short period of
time. Make sure you obser vethe no tes on
MOExtended tyres (run-0at tyres)
(/ page 439).
R V Vehicles wit
ehicles wit h a TIREFIT kit:
h a TIREFIT kit: you can repair the
tyre so that it is possible tocontinue the jour-
ney for a short period of time. Todo this, use
th e TIREFIT kit (/ page 440).
R V
Vehicles wit
ehicles wit h Mer
h Mercedes me connect:
cedes me connect: you can
make a call for breakdown assistance via the
ove rhead control panel in the case of a break-
down (/ page 400).
R All v
All v ehicles:
ehicles: change the wheel (/ page 470). N
No
ot
tes on MOExt
es on MOExt ended tyr
ended tyres
es(r
(run-0at
un-0at tyr
tyres)
es) &
W
WARNING
ARNING Risk of accident when driving in
limp-home mode
Driving in emer gency mode impairs the han-
dling characteristics of theve hicle. #
Do not exceed the permissible maximum
speed of the MOExtended tyres. #
Avoid any abrupt steering and driving
manoeuvres as well as driving over
obstacles (kerbs, pot holes, o.-road).
This applies, in particular, toa loaded
ve hicle. #
Stop driving in the emer gency mode if
yo u notice:
R banging noise
R vehicle vib ration
R smoke which smells like rubber
R continuous ESP ®
inter vention
R crac ksinthe tyre side walls #
ATer driving in emer gency mode, ha ve
th erims checkedby a quali/ed specialist Breakdown assis
tance
439 439

Yo
u can use TIREFIT tyre sealant toseal per fora-
tion damage of up to4 mm, particular lythose in
th e tyre contact sur face. You can use TIREFIT in
outside temp eratures down to-20 °C. &
W
WARNING
ARNING Risk of accident when using
tyre sealant
The tyre sealant may be unable toseal the
tyre proper ly, especially in thefo llowing cases:
R there are lar gecuts or punctures in the
tyre (larg erthan damage pr eviously men-
tioned)
R the wheel rims ha vebeen damaged
R aTer journe yswith very low tyre pressure
or with 0at tyres #
Do not continue driving. #
Consult a quali/ed specialist workshop. &
W
WARNING
ARNING Risk of injury and poisoning
from tyre sealant
Ty re sealant is hazardous tohealth and causes
ir rita tion. Do not allow it tocome into contact with
your skin, eyes or clo thing, and do not
swallow it. Do not inhale any vapours. Keep
th e tyre sealant away from children.
Obser vethefo llowing if you come into contact
with the tyre sealant: #
Rinse o. the tyre sealant from your skin
using water immediatel y. #
If tyre sealant gets into your eyes, thor-
oughly rinse them using clean water
immediatel y. #
If tyre sealant has been swallo wed,thor-
oughly rinse out your mouth immediately
and drink plenty of water. Do not induce
vo miting and seek medical attention
immediatel y. #
Change out of clo thing which has come
into contact with tyre sealant immedi-
atel y. #
If an alle rgic reaction occurs, seek medi-
cal attention immediatel y. *
N NO
OTE
TE Overheating due tothe tyre in0ation
compressor running too long #
Do not runth e tyre in0ation compressor
fo r longer than ten minutes without inter-
ru ption. Comply with
the manufacturer's saf ety no tes on
th e stic ker on the tyre in0ation compressor.
Ha ve the tyre sealant bottle replaced in a quali/ed
specialist workshop every /ve years. #
Do not remo veany fore ign objects which ha ve
entered the tyre. Breakdown assistance
441
441

R
monthly
R when the load changes
R before embarking on a lon ger journey
R if operating conditions change, e.g. o.-
ro ad driving #
Adjust the tyre pressure, if necessar y.Ty
re pressure which is too high or too low can:
R Shor tenth e service life of the tyres.
R Cause increased tyre damage.
R Adve rsely a.ect driving characteristics and
th us driving saf ety, e.g. due toaquaplaning. &
W
WARNING
ARNING Risk of accident due torepea-
te d pressure drop in the tyres
The wheels, valves or tyres could be damaged.
To o low a tyre pressure can lead tothe tyres
bursting. #
Examine the tyres forfo re ign objects. #
Check whe ther the tyre has a puncture
or theva lve has a leak. #
Ifyo u are unable torectify the damage,
contact a quali/ed specialist workshop. Information on
there commended tyre pressure
fo rth eve hicle's factor y-/tted tyres can be found
on the tyre pressure table on the inside of the fuel
/ller 0ap (/ page 463).
Use a suitable pressure gauge tocheck the tyre
pressure. The outer appearance of a tyre does not
permit any reliable conclusion about the tyre pres-
sure.
Only cor rect tyre pressures when the tyres are
cold. Conditions for cold tyres:
R The vehicle has been par ked with the tyres out
of direct sunlight for at least thre e hours.
R The vehicle has tr avelled less than 1.6 km.
The vehicle's tyres heat up when driving. As the
te mp erature of the tyres increases, so too does
th e tyre pressure.
V V ehicles wit
ehicles wit h a tyr
h a tyre pr
e pressur
essur e monit
e monit or
oring syst
ing syst em:
em:
yo u can also see the tyre pressure in the driver's
displa y. N
N
o
ot
tes on tr
es on tr ailer oper
ailer oper ation
ation
Alw ays in0ate there ar axle tyres tothere com-
mended tyre pressures on the tyre pressure table
fo r increased load. T
T
yr
yr e pr
e pr essur
essur e t
e table
able The tyre pressure
table is on the inside of the fuel
/ller 0ap. Wheels and tyres
463
463

The tyre pressure
table sho ws there commended
tyre pressure for all tyres appr ovedfo rth is vehi-
cle. The recommended tyre pressures apply for
cold tyres under various operating conditions, i.e.
loading and/or speed of theve hicle.
If one or more tyre sizes precede a tyre pressure,
th efo llowing tyre pressure information is only
va lid forth ose tyre sizes and their respecti veload
condition.
If th e preceding tyre sizes are complemented by
th e+ symbol, the tyre pressure information
fo llowing sho wsalternative tyre pressures. Fuel
consum ption may then increase slightl y.
The load conditions "pa rtially laden" and "fully
laden" are de/ned in theta ble for di.erent num-
bers of passengers and amounts of luggage. The
actual number of seats may di.er from this. T T
yr
yr e pr
e pr essur
essur e monit
e monit or
oring syst
ing syst em
em F
F
unction of t
unction of t he tyr
he tyre pr
e pressur
essur e monit
e monit or
oring syst
ing syst em
em
The system checks the tyre pressure and the tyre
te mp erature of the tyres /t tedtotheve hicle by
means of a tyre pressure sensor. The tyre pressure and
the tyre temp erature
appear in the driver's displa y.
If th ere is a substantial pressure loss or if the tyre
te mp erature is excessive, you will be warned with
display messages (/ page 562) ortheh
wa rning lamp in the driver's display
(/ page 589).
The tyre pressure monitoring system is only an
aid. It is the driver's responsibility toset the tyre
pressure tothere commended cold tyre pressure
suitable forth e operating situation.
In most cases, the tyre pressure monitoring sys-
te m will automatically update the new refere nce
va lues aTer you ha vechanged the tyre pressure.
Yo u can, ho wever, also update there fere nce val-
ues byrestarting the tyre pressure monitoring
system manually (/ page 465).
Syst Syst em limits
em limits
The system may be impaired or may not function
particular lyin thefo llowing situations:
R incor rect refere nce values were ta ught in
R sudden pressure loss caused byafo re ign
object penetrating the tyre, forex ample R
there is a malfunction caused byano ther radio
signal source
Chec Chec king t
king t he tyr
he tyr e pr
e pressur
essur e wit
e with t
h the tyr
he tyr e pr
e pressure
essure
monit
monit or
oring syst
ing syst em
em
R
R eq
equir uir ements:
ements:
R The vehicle is switched on.
Driver's displ ay:
4 © 5
Service #
Press atocon/rm.
One of thefo llowing displa ysappears:
R Current tyre pressure of each wheel: 464
464
Wheels and tyres

R
Tyre pressures will be displayed after a few
minutes of driving: cur rent values are not yet
known tothe system. The pressure/tempera-
ture values of each tyre are displa yed as soon
as they are known tothe system.
R Tyre pressure monitor active: thete ach-in
process of the system is not yetcomple te. The
tyre pressures are already being monitored. #
Compare the cur rent tyre pressure with the
re commended tyre pressure forth e cur rent
ope rating condition (/ page 463).Addition-
all y,obser vethe no tes on cold tyres
(/ page 462).
% The values displa yed in the driver's display
may deviate from those of the tyre pressure
ga uge as they referto sea le vel.At high ele va-
tions, the tyre pressure values indicated by a
tyre pressure gauge are higher than those
shown in the driver's displa y.
Bear in mind thefo llowing related topic:
R Notes on tyre pressure (/ page 462)R R
est
est ar
arting t
ting t he tyr
he tyr e pr
e pressur
essur e monit
e monit or
oring syst
ing syst em
em
R
R eq
eq uir
uir ements:
ements:
R The recommended tyre pressure is cor rectly
set forth ere specti veoperating status on each
of thefo ur wheels (/ page 462).
Re start the tyre pressure monitoring system in the
fo llowing situations:
R The tyre pressure has changed.
R The wheels or tyres ha vebeen changed or
ne wly /tted.
Driver's displa y:
4 © 5
Service #
Select Tyre pressure and con/rm with a. #
Swipe down wards on Touch Control on the
stee ring wheel.
The Use current tyre pressures as new refer-
ence values? messageis shown in the driver's
displa y. #
Select Yesand co n/rmthere start wi tha .
The Tyre pressure monitor restarted message
is shown in the driver's displa y. Cur
rent wa rning message s are deleted and
th eye llow h warning lamp goes out.
ATer you ha vebeen driving for a few minutes,
th e system checks whe ther the cur rent tyre
pressures are within the speci/ed range. The
cur rent tyre pressures are then accep ted as
re fere nce values and monitored.
If th e tyre pressure le vels are not within the
speci/ed range, thePlease correct tyre pres-
sure message appears.
Bear in mind thefo llowing related topic:
R Notes on tyre pressure (/ page 462) Wheel c
Wheel c
hange
hange N
No
ot
tes on selecting,
es on selecting, /tting
/ttingand r
and replacing tyr
eplacing tyr es
es &
W
WARNING
ARNING Risk of accident due toincor-
re ct wheel and tyre dimensions
If wheels and tyres of the wrong size are /t ted,
th e service brakes or components in the brake
system and in the wheel suspension may be
damaged. Wheels and tyres
465
465

wheels and tyres being damaged when driving
ov
er obstacles increases. #
Avoid obstacles or drive especially care-
full y. #
Reduce your speed when driving over
ke rbs, speed bumps, manhole co vers
and po tholes. #
Avoid particular lyhigh kerbs. *
N NOOTE
TE Possible wheel and tyre damage
when parking on kerbs or in po tholes Pa
rking on kerbs or in po tholes may damage
th e wheels and tyres. #
If possible, park only on 0at sur faces. #
Avoid kerbs and po tholes when parking. *
N
NOOTE
TE Damage toelectronic component
parts from the use of tyre -/ttingtools V
V
ehicles wit
ehicles wit h a tyr
h a tyre pr
e pressur
essur e monit
e monit or
oring sy
ing sy s-
s-
t
t em:
em: electronic component parts are located
in the wheel. Tyre-/tting tools should not be
applied in the area of theva lve. The
tools could damage the electronic compo-
nent parts. #
Have the tyres changed at a quali/ed
specialist workshop onl y. *
N
NO
OTE
TE Damage tosummer tyres at low
ambient temp eratures At
low ambient temp eratures, tears could form
when driving with summer tyres, causing per-
manent damage tothe tyre. #
Attemp eratures below 7 °C use i
M+S tyres. Ac
cessory parts which are not appr oved foryo ur
ve hicle byMercedes-Benz, or which are not used
cor rectl y,can impair the operating saf ety.
Before purchasing and using non-appro ved acces-
sories, visit a quali/ed specialist workshop and
enquire about:
R Suitability
R Legal stipulations
R Factory recommendations &
W WARNING
ARNING Risk of accident with high per-
fo rm ance tyres
The special tyre tread in combination with the
optimised tyre compound means that therisk
of skidding and hydroplaning on wetro ads is
increased.
In addition, the tyre grip is greatly reduced at
a low outside temp erature and tyre running
te mp erature. #
Switch on the ESP ®
and adapt your driv-
ing style accordingl y. #
Use i M+S tyres at outside temp era-
tures of less than 10 °C. #
Only use the tyres forth eir intended pur-
pose. Obser
vethefo llowing when selecting, /tting and
re placing tyres:
R Countr y-speci/c requ irements for tyre
appr oval that de/ne a speci/c tyre type for
yo ur vehicle. Wheels and tyres
467 467

R
Furthermore, the use of cer tain tyre types in
cer tain regions and areas of operation can be
high lybene/cial.
R Only use tyres and wheels of the same type
(summer tyres, winter tyres, MOExtended
tyres) and the same make.
R Only /t wheels of the same size on one axle
(leT and right).
It is only permissible to/t a di.e rent wheel
size in theev ent of a 0at tyre in order todrive
to the specialist workshop.
R Do not make any modi/cations tothe brake
system, the wheels or the tyres.
The use of shims or brake dust shields is not
permitted and may in validate theve hicle's
ge neral opera ting permit.
R V Vehicles wit
ehicles wit h a tyr
h a tyre pr
e pressur
essur e monit
e monit or
oring sy
ing sy s-
s-
t
t em:
em: all /t tedwheels must be equipped with
functioning sensors forth e tyre pressure mon-
itoring system.
R Attemp eratures below 7 °C use winter tyres
or all-season tyres mar kedi M+Sfor all
wheels. Wi
nter tyres pr ovide the best possible grip in
wintry road conditions.
R For M+S tyres, only use tyres with the same
tread.
R Obser vethe maximum permissible speed for
th e M+S tyres /t ted.
If th e tyre's maximum speed is below that of
th eve hicle, this must be indicated byan
appropriate label in the driver's /eld of vision.
R Run in new tyres at moderate speeds forthe
/r st 100 km.
R Replace the tyres aTer six years at the latest,
re ga rdless of wear.
R When r
When r eplacing wit
eplacing wit h tyr
h tyres t
es that do no
hat do no t f
t featur
eatur e
e
r
r un-0at
un-0at c
char
har act
acter
eris
istics:
tics: vehicles with
MOExtended tyres are not equipped with a
TIREFIT kit at thefa ctor y.Equip theve hicle
with a TIREFIT kit aTer replacing with tyres
th at do not feature run-0at characteristics,
e.g. winter tyres.
Fo r more information on wheels and tyres, con-
ta ct a quali/ed specialist workshop. Be sure
toalso obser vethefo llowing fur ther rela-
te d subjects:
R Notes on tyre pressure (/ page 462)
R Tyre pressure table (/ page 463)
R Notes on the emer gency spa rewheel
(/ page 475) N No
ot
tes on int
es on int erc
erchanging wheels
hanging wheels &
W
WARNING
ARNING Risk of injury thro ugh di.erent
wheel sizes
Inter changing the front and rear wheels can
se verely impair the driving characteristics.
The disk brakes or wheel suspension compo-
nents may also be damaged. #
Only inter change the front and rear
wheels if the wheels and tyres ha vethe
same dimensions. Inter
changing the front and rear wheels if the
wheels or tyres ha vedi.erent dimensions can
re nder thege neral opera ting permit in valid. 468 468
Wheels and tyres