2018 MERCEDES-BENZ S-CLASS SEDAN wheel

Only use tires, wheels or accessoriestested
and appr ovedby Mercedes-Benz.
* NO
TERisk todriving saf etyfrom 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 etycanno tbe guar ‐
anteed.
#Do no tuse 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 wid th.
The lo werth e tire section width, the greater
is therisk of damage towheels or tires when
driving over obs tacles.
#Av oid obs tacles or drive part icularly
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.
#Ha ve the tires changed at a qualified
specialist workshop onl y.
*NO
TEDama getosummer tires at low
ambient temp eratures
Using summer tires at very low ambient tem‐
peratures can cause crac kstoform ,th ereby
damaging the tires permanentl y.
#Attemp eratures below 45 °F (7 °C) use
M+S tires.
Ac cessory part sth 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 purc
hasing and using non-appr oved
accessori es, visit a qualified specialist workshop
and inquire about:
RSuitability
RLegal stipulations
RFa ctory 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
dr iving style accordingly.
#Use M+S tire at outside temp eratures
of less than 10 °C (50 °F).
434
Wheels and tires

Observethefo llowing when selecting, mounting
and replacing tires:
ROnly use tires and wheels of the same type
(summer tires, winter tires, MOEx tended
tires) and the same make.
ROnly mount wheels of the same size on one
axle (left and right).
It is only permissible toins tall a dif fere nt
wheel size in theeve nt of a flat tire in order
to drive tothe specialist workshop.
ROnly mount tires of the cor rect size onto the
wheels.
RVe hicles with a tire pressure monitoring
sy stem: All mounte d wheels must be equip‐
ped with functioning sensors forth e tire
pressure monitoring sy stem.
RAt temp eratures below 45 °F (7 °C), use win‐
te r tires or all-season tire mar ked M+S for all
wheels.
Wi nter tires bearing thei snowflake sym‐
bol in addition tothe M+S marking pr ovide
th e best possible grip in wintry road condi‐
tions.
RFo r M+S tires, only use tires with the same
tread.
RObser vethe maximum permissible speed for
th e M+S tire mounted.
If th is is below theve hicle's maximum speed,
th is must be indicated in an appropriate label
in the driver's field of vision.
RBreak in new tires at moderate speeds for
th efirs t 60 miles (100 km).
RRe place the tires af ter six years at the latest,
re ga rdless of wear.
RWhen replacing with tires that do n otfea‐
ture run-flat characteristics: vehicles with
MOExtended tires are not equipped with a
TIREFIT kit at thefa ctor y.Equip theve hicle
with a TIREFIT kit af terre placing with tires
th at do not feature run-flat characteristics,
e.g. winter tires.
Fo r more information on wheels and tires, con‐
ta ct a qualified specialist workshop.
Be sure toalso observ eth efo llowing fur ther
re lated subjects:
RNo tes on tire pressure (→page 414)
RTire and Loading Info rmation placard
(→page 420)
RTi re size designation, load-beari ng capacity,
speed rating and load ind ex(→page 428)
RTire pressure table (→page 416)
Note s on inter changing wheels
&
WARNING Risk of injury thro ugh dif fer‐
ent wheel sizes
Inter changing the front and rear wheels if the
wheels or tires ha vediffere nt dimensions
may se verely impair the driving characteris‐
tics.
The wheel brakes or wheel suspension com‐
ponents may also be damaged.
#Ro tate front and rear wheels only ifth e
wheels and tires are of the same dimen‐
sions.
Wheels and tires 435

Thewear patte rns on the front and rear wheels
dif fer:
RFr ont wheels wear more on the shoulder of
th e tire.
RRe ar wheels wear more in the center of the
tire.
On vehicles that ha vethe same size front and
re ar wheels, inter change the wheels according
to the inter vals in the tire manufacturer's war‐
ra nty book in your vehicle documents. If this is
not available, inter change the tires every
3000 to6000 miles (5000 to10000 km),
depending on thewe ar. Ensure that the direction
of rotation is maintained.
It is impe rative toobser vethe instructions and
saf etyno tes on "Wheel change" when doing so.
Note s onstoring wheels
RAf terre moving wheels, store them in a cool,
dry and preferably dark place.
RPr otect 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-changing
to ols are required and appr oved for per form ing a
wheel change on your vehicle, consult a qualified
specialist workshop.
Re quired tire-change tools may include, for
ex ample:
RJack
Rch ock
RLu g wrench
RCentering pin
The tire-change tool kit is located under the
trunk floor.
1Ra tchet
2Centering pin
3Jack ing support
4Jack
5Lu g wrench
6Fo lding chock
436
Wheels and tires

Setting upthefo lding wheel chock
Prepa ring theve hicle for a wheel change
Re quirements:RThe requ ired tire-change tool kit 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.
RThe vehicle is not on a slope.
RThe vehicle is on solid, non-slippery and le vel
ground .
#Applythe electric parking brake manually.
#Mo vethe front wheels tothest ra ight-ahead
position.
#Shift the transmission toposition j.
#Vehicles with AIR BODY CONT ROL or
MAGIC BODY CONT ROL:Set the normal
ve hicle le vel.
#Swit choff the engine.
#Make sure that the engine cannot bestar ted.
#Place choc ks orother suitable items under
th e front and rear of the wheel that is diago‐
nally opposite the wheel youwish tochange.
#Re mo vethe hub caps if necessary
(→page 437).
#Ra ise theve hicle (→page 438).
Re moving and mounting hub caps
Requirement:RThe vehicle is prepared for a wheel change
(→page 437).
Plast ic hub cap
#Toremo ve:turn the center co ver of the hub
cap counter-clockwise and remo vethe hub
cap.
#To mount: makesurethat the center co ver
of the hub cap is turned counter-clockwise.
#Po sition the hub cap and turn the center
co ver clockwise until the hub cap engages
ph ysically and audibly.
Wheels and tires 437

Aluminum hub cap
#Toremo ve:position soc ket2 on hub cap
1.
% The soc ket can be found inthe tire-change
to ol kit.
#Po sition wheel wrench 3on soc ket2.
#Using wheel wrench 3, turn hub cap1
counter-clo ckwise and remo veit.
#To mount: position hub cap 1and turn
until it is compl etely flush withth e wheel.
#Po sition soc ket2 on hub cap 1.
#Attach wheel wrench 3tosoc ket2 and
tighten the hub cap clockwise.
Specified tightening torq ue: 18lb-ft
(25 Nm).
#Ra ising theve hicle (→page 438).
Ra ising theve hicle when changing a wheel
Re quirements:RThere are no persons in theve hicle.
RThe vehicle is prepared for a wheel change
(→page 437).
RThe hub caps ha vebeen remo ved
(→page 437).
Impor tant no tes on using the jack:
RUse only theve hicle-specific jack that has
been tested and appr oved byMercedes-Benz
to raise theve hicle.
RThe jack is only designed forra ising and
holding theve hicle for a short time while a
wheel is being changed and not for mainte‐
nance workunder theve hicle.
RThe jack must be placed on a firm ,fl at and
non-slip sur face. If necessar y,use a lar ge,
load-bearing, non-slip underla y.
RThe base ofthe jack must be positioned ver‐
tically under the jack support point.
Ru les of conduct when theve hicle is raised:
RNe ver place your hands or feet under the
ve hicle.
RDo not lie under theve hicle.
RDo not start the engine and do not release
th e electric parking brake.
RDo not open or close any doors or the trunk
lid.
438 Wheels and tires

#Usingthe wheel wrench, loosen the wheel
bolts on the wheel youwish tochange by
about one full turn. Do not unscr ewthe
scr ews comple tely.Po sition of jack support points
&
WARNING Risk of injury from incorrect
positioning of the jack
If yo u do not position the jack cor rectly at
th e appropriate jacking point of theve hicle,
th e jack could tip with theve hicle raised.
#Only position the jack at the appropri‐
ate jacking point of theve hicle. The
base of the jack must be positioned ver‐
tically under the jacking point of the
ve hicle.
* NO
TEVehicle damage from the jack
Ifyo u do not position the jack cor rectly at
th e appropriate jack support point of the
ve hicle, the jack could tip over with theve hi‐
cle raised.
#The jack is designed exclusively for
jacking up theve hicle at the jack sup‐
port points.
#Ta ke the box wrench out of the tire-change
to ol kit and place it on the he xagon nut of
th e jack so that the letters AUF are visible.
Wheels and tires 439

#Position jack 2at jack support point 1.
#Turn box wrench 3clockwise until jack 2
sits comple tely on jack support point 1and
th e base of the jack lies evenly on the
ground .
#Continue toturn box wrench 3until the tire
is raised a maximum of 1.2 in (3 cm) off the
ground .
#Loosen andremo vethe wheel (→page 440).
Re moving a wheel
Requirement:RThe vehicle is raised (→page 438).
When changing a wheel, avoid applying any forc e
to the brake discs, since this could impair the
le ve l of com fort when braking.
* NO
TEDama getothre ading from dirt on
wheel bolts
#Do not place wheel bolts in sand or on
a dirty sur face.
#Un scr ew the uppermost wheel bolt com‐
ple tely.
#Scr ew centering pin 1instead of the wheel
bolt into theth re ading.
#Un scr ew there maining wheel bolts fully.
#Re mo vethe wheel.
#Mount the new wheel (→page 440).
Moun ting a new wheel
Requirement:RThe wheel is remo ved (→page 440).
44 0
Wheels and tires

&WARNING Risk of accident from losing a
wheel
Oiled, greased or damaged wheel bolt/wheel
nut thre ads or wheel hub/wheel mounting
bolt thre ads can cause the wheel bolts/
wheel nuts tocome loose.
As a result, you could lose a wheel while driv‐
ing.
#Ne ver oil or grease theth re ads.
#In theeve nt of damage totheth re ads,
con tact a qualified specialist workshop
immediatel y.
#Have the damaged wheel bolts or dam‐
aged hub thre ads replaced.
#Do not continue driving.
#Obser vethe information on thech oice of
tires (→page 433).
Fo r tires with a specified direction of rotation, an
ar row onthe side wall of the tire indicates the
cor rect dire ction of rotation. Observ eth e direc‐
tion of rotation when ins talling.
#Slide the wheel tobe mounted onto the cen‐
te ring pin and push it on.
&
WARNING Risk of injury from tightening
wheel bolts and nuts
If yo u tighten the wheel bolts or wheel nuts
when theve hicle is raised, the jack could tip.
#Only tighten wheel bolts or wheel nuts
when theve hicle is on the ground.
#Fo r saf etyre asons, only use wheel bolts
which ha vebeen appr ovedfo r Mercedes-
Benz and the wheel in question.
* NO
TEDama getopaintwork of the wheel
ri m when scr ewing on thefirs t wheel bolt
If th e wheel has too much play when scr ew‐
ing in thefirs t wheel bolt, the wheel rim paint
can be dama ged.
#Press the wheel firm lyagainst the
wheel hub when scr ewing on thefirs t
wheel bolt.
#Ti ghten the wheel bolts until they are finger-
tight.
#Un scr ew the centering pin.
#Tighten the last wheel bolt until it is finger-
tight.
#Lo we rth eve hicle (→page 441).
Lo weri ngtheve hicle af ter a wheel change
Re quirements:RThe new wheel has been mounted
(→page 440).
#Plac eth era tchet wrench onto the he xagon
nut of the jack so that the letters "AB" are
visible.
#To lowe r the vehicle: turnthera tchet
wrench of the jack counter-clockwise.
Wheels and tires 44
1