2019 MERCEDES-BENZ S-CLASS CABRIOLET change wheel

Ti
re s with run-flat characteristics: #
Obse rveth e information and warning
no tes on MOExtended tires (run-flat
tires). In
theeve nt of a flat tire, thefo llowing options
are available depending on your vehicle's equip‐
ment:
R Vehicles with MOExtended tires: it is pos‐
sible tocontinue the journey for a short
period of time. Make sure you obse rvethe
no tes on MOExtended tires (run-flat tire)
(→ page 357).
R Vehicles with a TIREFIT kit: you can repair
th e tires so that it is possible tocontinue the
jou rney for a short period of time. Todo this,
use the TIREFIT kit (→ page 358).
R Vehicles with Mercedes me connect: you
can make a call forRo adside Assis tance via
th eove rhead control panel in the case of a
breakdown (→ page 302).
R Allvehicles: change the wheel
(→ page 400). Note
s on MOExtended tires (run-flat tire) &
WARNING Risk of accident when driving
in eme rgency mode
When driving in emer gency mode, the han‐
dling characteristics are impaired. e.g. when
cornering, when accelerating stronglyand
when braking. #
Do not exceed the permissible maxi‐
mum speed for MOExtended tires. #
Avoid any abrupt steering and driving
maneuvers as well as driving over
obs tacles (curbs, pot holes, off-road).
This applies, in pa rticular, toa loaded
ve hicle. #
Stop driving in the emer gency mode if
yo u notice:
R banging noise
R vehicle vibration
R smoke which smells like rubber
R continuous ESP ®
inter vention
R crac ksin tire side walls #
After driving in emergency mode ha ve
th erims checkedby aqu alified special‐
ist workshop with rega rd totheir fur ther
use. #
The defective tire must be replaced in
eve rycase. Wi
th MOExtended tires (run-flat tire), you can
continue todrive your vehicle even if there is a
tot al loss of pressure in one or more tires. How‐
eve r,th e tire af fected must not show any clearly
visible damage.
Yo u can recognize MOExtended tires bythe
MOExtended marking which appears onthe side
wa ll of the tire.
Ve hicles with tire pressure monitoring sys‐
te m: MOExtended tires may only be used in con‐
junction wi than activated tire pressure monitor‐
ing sy stem.
If a pressure loss warning message appears in
th e multifunction displa y,proceed as follo ws:
R Check the tire for dama ge.
R If driving on, obser vethefo llowing no tes. Breakdown assis
tance 357

swallow it. Do not inhale tire sealant fumes.
Ke ep the tire sealant away from children.
If yo u come into contact with the tire sealant,
obser vethefo llowing: #
Rinse off the tire sealant from your skin
immediately using water. #
If tire sealant gets into your eyes, thor‐
oughly rinse out theey es using clean
wate r. #
If tire sealant has been swallowe d,
immediately rinse out the mouth thor‐
oughly and drink plenty of water.Do not
induce vomiting and seek medical
attention immediately. #
Change out of any clo thes conta mina‐
te d with tire sealant immediatel y.#
If allergic reactions occur, seek medical
attention immediatel y. *
NO
TEOverheating due tothe tire infla‐
tion compressor running too long #
Do not runth e tire inflation compressor
fo r longer than eight minutes without
inter ruption. Comply with
the manufacturer's saf ety no tes on
th est icke r on the tire inflation compressor.
Ha ve the tire sealant bottle replaced everyfour
ye ars at a qualified specialist workshop. #
Do not remo veany fore ign objects which
ha ve entered the tire. #
Affix pa rt1 ofthe TIREFIT sticke rto the
instrument clus ter within the driver's field of
vision. #
Affix pa rt2 ofthe TIREFIT sticke r near the
va lve on the wheel with thefa ulty tire. #
Pull plug 4with the cable and hose 5out
of the tire inflation compressor housing. Breakdown assis
tance 359

R
The tires may wearexc essively and/or
une venly, which may greatlyimpair tire
traction.
R The driving characteristics, as well as
st eering and braking, may be greatly
impaired. #
Comply with there commended tire
pressure and check the tire pressure of
all tires including the spare wheel regu‐
larly:
R at least once a month
R when the load changes
R before embarking on a lon ger journey
R if operating conditions change, e.g. off-
ro ad driving #
Adjust the tire pressure as necessar y.Driving wi
thtire pressu rethat is too high or too
low can:
R Sho rten the service life of the tires.
R Cause increased tire damage. R
Adversely af fect driving characteristics and
th us driving saf ety, e.g. due to hydroplaning. &
WARNING Risk of an accident due to
insuf ficient tire pressure
Ti re s with pressure that is too low can over‐
heat and bur stas a result.
In addition, they also suf fer from excessive
and/or ir regular wear, which can significantly
impair the braking properties and the han‐
dling characteristics. #
Avoid excessively low tire pressures in
all the tires, including the spare wheel. Ti
re pressure which is too low can cause:
R Tire defects as a result of overheating
R Impaired handling characteristics
R Irre gular wear
R Increased fuel consum ption &
WARNING Risk of accident from exces‐
sive tire pressure
Ti re s with excessively high pressure can
bu rst because they are damaged more easily
by highw ayfill, pot holes etc.
In addition, they also suf fer from ir regular
we ar, which can significantly impair the brak‐
ing properties and the handling characteris‐
tics. #
Avoid excessively high tire pressures in
all the tires, including the spare wheel. Excessively high tire pressure can
result in:
R Increased braking dis tance
R Impaired handling characteristics
R Irre gular wear
R Impaired driving com fort
R Susceptibility todamage 378
Wheels and tires

The sy
stem checks the tire pressure and the tire
te mp erature of the tires ins talled on theve hicle
by means of a tire pressu resensor.
New tire pressure sensors, e.g. in winter tires,
are automatically taught-in during thefirs t jour‐
ney they are used.
If th ere is a subs tantial pressure loss or if the
tire temp erature is excessive, you will be warned
in thefo llowing ways:
R via display messa ges (→ page 450)
R viathe0077 warning lamp in the instrument
clus ter (→ page 474)
The tire pressu remonitoring sy stem is only an
aid. It is the driver's responsibility toset the tire
pressure tothere commended cold tire pressure
suitable forth e operating situation. Set the tire
pressure for cold tires using a tire pressu re
ga uge. Notethat the cor rect tire pressure forthe
cur rent operating situation mu stfirs t be taught-
in to the tire pressure monitoring sy stem.
In most cases, the tire pressure monitoring sys‐
te m will auto maticallyupdate the new refere nce
va lues af teryo u ha vechanged the tire pressure.
Yo u can, ho wever,also update there fere nce val‐ ues
byrestarting the tire pressure monitoring
sy stem manually (→ page 383).
Sy stem limitations
The sy stem may be impaired or may not function
in thefo llowing situations:
R Ifth e tire pressure is set incor rectly
R Ifth ere is a sudden pressure loss caused, for
ex ample, byafo re ign object penetrating the
tire
R Ifth ere is a malfunction caused byano ther
ra dio signal source
Make sure toobser vethefo llowing fur ther rela‐
te d subjec t:
R Notes on tire pressure (→ page377)
Che cking the tire pressure with the tire pres‐
sure moni toring sy stem
Requ irements:
R The ignition is switched on. On-board computer:
, Service .
Tires
One of thefo llowing displa ysappears:
R Cur rent tire pressure of ea chwheel:
R Tire pressure will be displayed after driving a
few minutes
R Tire Pressure Monitor Active: thete ach-in
process of the sy stem is not yet comple te.
The tire pressure are already being moni‐
to re d. #
Compare the tire pressure with there com‐
mended tire pressure forth e cur rent operat‐
ing condition (→ page 379). Obser vethe
no tes on tire temp erature (→ page377).
% The values displa yed in the multifunction dis‐
play may deviate from those of the tire pres‐
sure gauge as they referto sea le vel.At high
altitudes, the tire pressure value indicated by
a pressure gauge are higher than those
shown bythe on-board computer. In this
case, do not reduce the tire pressure. 382
Wheels and tires

Make sure
toobser vethefo llowing fur ther rela‐
te d subjec t:
R Notes on tire pressure (→ page377)
Rest arting the tire pressure moni toring sys‐
tem
Requ irements:
R The recommended tire pressure is cor rectly
set forth ere spective operating condition on
each of thefo ur wheels (→ page377).
Re start the tire pressure monitoring sy stem in
th efo llowing situations:
R The tire pressure has changed.
R The wheels or tires ha vebeen changed or
newly ins talled.
On-board computer: , Service .
Tires #
Swipe down wards on Touch Control on the
left-hand side of thesteering wheel.
The Use Current Pressures as New Refer-
ence Values? message is shown in the multi‐
function displa y. #
Press 0076toconfirm there start.
The Run Flat Indicator Restarted message is
shown in the multifunction displa y.
Cur rent wa rning messages are dele ted and
th e0077 yellow warning lamp goes out.
Af teryo u ha vedriven for a few minutes, the
sy stem checks whe ther the cur rent tire pres‐
su res are within the specified range. The cur‐
re nt tire pressures are then accep ted as ref‐
erence values and monitored.
Make sure toobser vethefo llowing fur ther rela‐
te d subjec t:
R Notes on tire pressure (→ page377) Ra
dio equipment appr oval of the tire pres‐
sure moni toring sy stem
Ra dio equipment appr oval numbers Countr
yRadio type appr oval number
Canada IC: 2546A-GG4T IC: 2546A-DG6W2D4
IC: 2546A-MC34MA4
Le présent appareil est conforme
aux CNR d'Indu strie Canada
applicables aux appareils radio
exe mpts de licence. L'exploi ta‐
tion est au torisée aux deux con‐
ditions suivantes:
(1) l'appare il ne doit pas produire
de brouillage, et
(2) l'utilisateur de l'appareil doit
accep terto ut brouillage radioé‐
lectrique subi, même si le
brouillage est susceptible d'en
compromettre lefonctionnement. Wheels and tires
383

Only use tires, wheels and accessories
that
ha ve been checked and recommended by
Mercedes-Benz. *
NO
TERisk todriving saf ety from retrea‐
ded tires Re
treaded tires are nei ther tested nor recom‐
mended byMercedes-Benz, since pr evious
damage cannot alw ays be de tected on
re treaded tires.
Fo rth is reason driving saf ety cannot be guar‐
anteed. #
Do not use used ti res if you ha veno
information about their pr evious usage. *
NO
TEPossible damage towheels or tires
when driving over obs tacles Large wheels ha
vea lo wer tire section width.
The lo werth e tire section width, the greater
is therisk of damage towheels or tires when
driving over obs tacles. #
Avoid obs tacles or drive pa rticular ly
carefully. *
NO
TEDama getoelectronic component
parts from the use of tire-mounting tools Ve
hicles with a tire pressure monitoring
sy stem: Electronic component parts are
located in the wheel. Tire -mounting tools
should not be used in the area of theva lve.
This could otherwise damage the electronic
component parts. #
Have the tires changed at a qualified
specialist workshop onl y. *
NO
TEDama getosummer tires at low
ambient temp eratures At
low ambient temp eratures, tears could
fo rm when driving with summer tires, caus‐
ing permanent damage tothe tires. #
Attemp eratures below 45 °F (7 °C),
use M+S tires . Ac
cessory pa rts th at are not appr ovedfo ryo ur
ve hicle byMercedes-Benz or are not being used
cor rectly can impair the operating saf ety.
Before pu rchasing and using non-appr oved
accesso ries, visit a qualified specialist workshop
and inquire about:
R Suitability
R Legal stipulations
R Factory recommendations &
WARNING Risk of accident wi thhigh
per form ance tires
The special tire tread in combination with the
optimized tire compound means that therisk
of skidding or hydroplaning on wetro ads is
inc reased.
In addition, the tire grip is greatly reduced at
a low outside temp erature and tire running
te mp erature. #
Switch on the ESP ®
and adapt your
driving style accordingly. #
Use M+S tire at outside temp eratures
of less than 10 °C (50 °F). Wheels and tires
397

The
wear pat tern s on the front and rear wheels
dif fer:
R Front wheels wear more on the shoulder of
th e tire
R Rear wheels wear more in the center of the
tire
On vehicles that ha vethe same size front and
re ar wheels, rotat eth e wheels according tothe
inter vals in the tire manufacturer's warranty
book in your vehicle documents. If this is not
av ailable, rotate the tires every
3,000 to6,000 mile s (5,000to10,000 km),
depending on thewe ar. Ensure that the direction
of rotation is maintained.
It is impe rative toobser vethe instructions and
saf ety no tes on "Changing a wheel" when doing
so Preparing theve hicle for a wheel
ch ange( →page 400). Note
s onstoring wheels When
storing wheels, obser vethefo llowing
no tes:
R Afterre moving wheels, store them in a cool,
dry and preferably dark place.
R Protect the tires from conta ct withoil, grease
or fuel. Overview of
the tire-chan getool kit Apart from some countr
y-specific variants, vehi‐
cles are not equipped with a tire-change tool kit.
Fo r more information on which tire-changetools
are requ ired and appr ovedfo r per form ing a
wheel change on your vehicle, consult a qualified
specialist workshop.
Re quired tire-change tools may include, for
ex ample:
R Jack
R Chock
R Lug wrench
R Alignment bolt The tire-change
tool kit is located under the
trunk floor. 1
Ratchet
2 Alignment bolt
3 Jack ing support
4 Jack
5 Lug wrench
6 Folding chock Wheels and tires
399

Setting up
thefo lding chock Prepa
ring theve hicle for a wheel change Re
quirements:
R The requ ired tire-change tool is available. If
yo ur vehicle is not equipped with the tire-
ch ange tool kit, consult a qualified specialist
wo rkshop tofind out about suitable tools. R
The vehicle is not on a slope.
R The vehicle is on solid, non-slippery and le vel
ground. #
Apply the electric parking brake manually. #
Movethe front wheels tothest ra ight-ahead
position. #
Vehicles with automatic transmission:
Shift into position 005D. #
Vehicles with le vel control sy stem: Setthe
normal vehicle le vel (→ page 180). #
Switch off the engine. #
Make sure that the engine cann otbe star ted. #
Place choc ks orother suitable items under
th e front and rear of the wheel that is diago‐
nally opposite the wheel you wish tochange. #
Remo vethe hub caps if necessary
(→ page 400). #
Raise theve hicle (→ page 401). Re
moving and in stalling hub caps Re
quirements:
R The vehicle is prepared for a wheel change
(→ page 400).
Pla stic hub cap #
Toremo ve:turn the center co ver of the hub
cap counter-clockwise and remo vethe hub
cap. #
Toinstall: make sure that the center co ver of
th e hub cap is turned counter-clockwise. #
Position the hub cap and turn the center
co ver clockwise until the hub cap engages
ph ysically and audibly. 400
Wheels and tires