2018 MERCEDES-BENZ S-CLASS SEDAN warning

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

#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

&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

#Tighten the wheel bolts evenly in a crosswise
pattern in the sequence indicated (1 to5).
Specified tightening torq ue: 111 lb-ft
(150 Nm).
& WARNING Risk of accident due toincor‐
re ct tigh tening torque
Th ewheels could come loose if the wheel
bolts or wheel nuts are not tightened tothe
prescribed tightening torque.
#Ha ve the tightening torque checked
immediately at a qualified specialist
wo rkshop af terch anging a wheel.
#Check the tire pressure of the newly moun‐
te d wheel and adjust according ly.
#Ve hicles with a tire pressure monitoring
sy stem: Restart the tire pressure monitoring
sy stem (
→page 420).
Make sure toobser vethefo llowing fur ther rela‐
te d subjec t:
RNotes on tire pressure (→page 414)
44 2
Wheels and tires

Notes ontech nical data
Plug-in hybrid: obser vethe no tes in the Supple‐
ment. Otherwise, you may not recognize dan‐
ge rs.
Mercedes-AMG vehicles: observeth e no tes in
th e Supplement. Otherwise, you may not recog‐
nize dangers.
The data stated only appliestovehicles with
st andard equipment. You can obtain fur ther
information from an authorized Mercedes-Benz
Center.
Ve hicle electronics
Tw o-w ayradios
Note s on installing two-w ayradios
&
WARNING Risk of accident due to
improper workon two-w ayradios
The electro magneticradiation from two-w ay
ra dios can inter fere with the on-board elec‐
tronics if RF transmit ters are manipulated or
re trofitted inco rrectly.
This could jeopardize the operating saf etyof
th eve hicle.
#Yo u should ha veall workon electrical
and electronic components car ried out
at a qualified specialist workshop.
&
WARNING Risk of accident from incor‐
re ct ope ration of two-w ayradios
If yo u operate two-wa yra dios incor rectly in
th eve hicle, the electromagnetic radiation
could inter fere with the on-board electronics,
e.g.:
Rif th e two-w ayradio is not connec tedto
an exterior antenna
Rif th eex terior antenna is not cor rectly
mounted or is not of low reflection
This could jeopardies the operating saf etyof
th eve hicle.
#Ha ve the lo w-reflection exterior
antenna ins talled at a qualified special‐
ist workshop.
#When operating two-w ayradios in the
ve hicle, alw ays connect them tothe
lo w- reflection exterior antenna.
* NO
TEInva lidation of the operating per‐
mit due tofailure tocomply wi th the
instructions for ins tallation and use
The operating permit may be in validated if
th e instructions for ins tallation and use of
two-w ayradios are not obser ved.
#Only use appr oved frequency bands.
#Obser vethe maximum permissible out‐
put po wer in these frequency bands.
#Only use appr oved antenna positions.
Tech nical da ta44
3

Operatingfluids
Note s on operating fluids
Mercedes-AMG vehicles: observeth e no tes in
th e Supplement. Otherwise, you may not recog‐
nize dangers.
& WARNING Risk of injury from operating
fl uids harmful to your health
Operating fluids maybe pois onous and harm‐
ful to yo ur health.
#Obser vethete xt on the original con‐
ta iners when using, storing or disposing
of operating fluids.
#Alw aysst ore operating fluids sealed in
th eir original conta iners.
#Alwayske ep children away from operat‐
ing fluids.
&
WARNING Risk offire and explosion
caused byfuel
Fu els are highly inflammable.
#You must avoidfire , open flames, creat‐
ing spar ksand smoking.
#Before refueling, switch off the engine
and, if ins talled in your vehicle, thest a‐
tionary heater.
& WARNING Risk of injury from fuel
Fu els are poisonous and harmful to your
health
#Do not sw allow fuel or let it come into
contact with skin, eyes or clo thing.
#Do not inhale fuel vapors.
#Ke ep children away from fuel.
If yo u or other people come into contact with
fuel, obser vethefo llowing:
#Immediately rinse fuel off your skin with
soap and water.
#If fuel comes into contact with your
ey es, immediately rinse them thor‐
oughly with clean water.Seek medical
attention immediately.
#If yo u sw allow fuel, seek medical atten‐
tion immediatel y.Do not induce vomit‐
ing.
#Change immediately out of clo thing that
has come into con tact wi thfuel.
+ENVIRONMENTAL NOTEEnvironmental
pollution caused byenvironmen tally ir re‐
sponsible disposal
#Dispose of operating fluids in an envi‐
ro nmentally responsible manner.
Operating fluids include thefo llowing:
RFu els
RLubricants
RCoolant
RBrake fluid
RWi ndshield washer fluid
RClimate cont rol sy stem refrigerant
Only use products recommended byMercedes-
Benz.
Te ch nical da ta44
7

Notes on brake fluid
Obser vethe no tes on operating fluids
(→page 447).
&
WARNING Risk of an accident due to
va por poc kets form ing in the brake sys‐
te m
The brake fluid cons tantly absorbs moist ure
from the air. This lo wersthe boiling point of
th e brake fluid. If the boiling point is too lo w,
va por poc kets may form inthe brake sy stem
when the brakes are applied hard.
This causes the braking ef fect to be
impaired.
#Ha ve the brake fluid rene we d at the
specified inter vals.
Ha ve the brake fluid regularly changed at a quali‐
fi ed specialist workshop.
Only use brake fluid appr ovedby Mercedes-Benz
according toMB-F reigabe or MB-Appr oval 33 1.0. Fu
rther information on brake fluid:
RIn the Mercedes-Benz Specifications for
Operating Fluids at http://be vo.mercedes-
benz.com
RAt aqu alified specialist workshop
Coolant
Note s on coolant
Obser vethe no tes on operating fluids
(
→page 447).
&
WARNING ‑ Risk of fire and injury from
antifreeze
If antifreeze comes into contact with hot
component parts in the engine compart‐
ment, it may ignite.
#Allow the engine tocool down before
adding antifreeze.
#Make surethat no antifreeze spills out
next tothefiller opening.
#Thoroughly clean off any antifreeze
from component parts before starting
th eve hicle.
* NO
TEDama gecaused byincor rect cool‐
ant
#Only add coolant that has been pre‐
mixed with therequ ired antifreeze pro‐
te ction.
Fu rther information on coolant:
RIn the Mercedes-Benz Specifications for
Operating Fluids 310.1, e.g. online at
http://be vo.mercedes-benz.com.
RAt aqu alified specialist workshop.
* NO
TEOverheating at high outside tem‐
peratures
If an inappro priate coolant is used, the
engine cooling sy stem is not suf ficiently pro‐
te cted against overheating and cor rosion at
high outside temp eratures.
Tech nical da ta451