2018 MERCEDES-BENZ E-CLASS SEDAN change wheel

Tire pressure
Note sont irep ressure
&
WARNING Risk of accident duetoi nsuf‐
fi cient or excessiv etirep ressure
Underinfla tedoro verinfla tedt ires pose the
fo llowing risks:
RThe tires ma yburst,e speciall yasthe
load and vehicle speed increase.
RThe tires ma ywear excessivel yand/or
une venly, whic hmaygreatly impair tire
traction.
RThe drivingc haracteristics, as well as
st eering and braking, ma ybegreatly
impaired.
#Comply wit hthe recommended tire
pressur eand checkt he tir epressur eof
all tires including thes par ew heel regu‐
larly:
Rat leas tonce amonth
Rwhen thel oad changes
Rbefor eembarkin gonalongerjourney
Rif operating conditions change, e.g .off-
ro ad driving
#Ad jus tthe tir epressur easn ecessar y.
Driving wi thtirep ressur ethat is tooh igh or too
lo wc an:
RSho rten thes ervice lif eofthe tires.
RCause increased tir edamage.
RAdverselya ffect driving characteristic sand
th us dr ivingsafet y, e.g. due toaquaplaning.
&
WARNING Risk of an accident duet o
insuf ficient tir epressure
Ti re sw ithp ressur ethat is tool ow can over‐
heat and bur stas aresult.
In addition ,the ya lso suf ferf rome xcessive
and/or ir regular wear,w hic hc an significantly
impair theb raking properties and theh an‐
dling characteristics.
#Av oid excessively lo wtirep ressures in
all thet ires, including thes par ew heel.
Tire pressur ewhichist oo lo wcan cause:
RTire defectsasar esult ofoverheating
RImpaired handling characteristics
RIrre gular wear
RIncreased fuel consum ption
&
WARNING Risk of accident from exces‐
siv etirep ressure
Ti re sw ithe xcessivel yhigh pressur ecan
bur stbecause they ared amaged mor eeasily
by highw ayfill, po tholes etc.
In addition, they also suf ferf romi rregular
we ar,w hic hc an significantl yimp air theb rak‐
ing properties and theh andling characteris‐
tics.
#Av oid excessively high tir epressures in
all thet ires, including thes par ew heel.
Excessively high tir epressur ecan result in:
RIncreased braking dis tance
RImpaired handling characteristics
RIrre gular wear
356
Wheels and tires

The system checks thet irep ressur eand thet ire
te mp eratur eofthe tires fitted tothev ehicle by
means of atirep ressure sensor.
Ne wt irep ressur esensors, e.g. in winter tires,
ar ea utomaticall ytaught-in thef irst tim etheya re
driven.
The tir epressur eand thet iret emperature
appear in them ultifunction display
(
→pag e206).
If th er eisas ubstantia lpressure loss or if the
tir et emperatur eisexcessive, awarning will be
given:
RVi ad ispla ymessages (→page426).
RViat he h warning lam pinthe instrument
clus ter(→pag e456).
It is thed rive r's responsibility tosetthe tire
pressur etotherecommended cold tir epressure
suitable fort he operating situation. Se tthe tire
pressur efor cold tires using atirep ressure
ga uge. Notethat thec orrect tir epressur efor the
cur rent operating situatio nmustfirst be taught-
in to thet irep ressur emonitoring sy stem. In mos
tcases, thet irep ressur emonitoring sys‐
te mw illautom atically updat ethe ne wreference
va lues af tery ou ha vechanged thet irep ressure.
Yo uc an,h ow ever,a lso updat ethe refere nce val‐
ues byrestartin gthe tir epressur emonitoring
sy stem manuall y(
→page361).
Sy stem limitations
The sy stem ma y
bei mpaired or ma ynotfunction
in thef ollowing situations:
RIfth et irep ressur eiss etincor rectly.
RIfth er eisas udden pressur eloss caused, for
ex ample, byaforeign object penetratin gthe
tire.
RIf th er eisam alfunction caused byano ther
ra dio signal source.
Mak esuretoo bservethef ollowing fur ther rela‐
te ds ubjec t:
RNotesont irep ressur e(→page356)
Checking thet irep ressur ewitht he tir epres‐
sur em onitoring sy stem
Requ irement:
RThe ignition is switched on. On-boar
dcomputer:
,6HUYLFH.7LUHV
One of thef ollowing displa ysappears:
RCur rent tir epressur eand tir etemperatur eof
th ei ndividual wheels:
R7LUH SUHVVXUH ZLOO EH GLVSOD\HG DIWHU GULYLQJ D
IHZ PLQXWHV
R7LUH 3UHVVXUH 0RQLWRU $FWLYH:t heteach-in
process of thes ystemisn ot yetcomple te.
The tir epressures ar ealready being moni‐
to re d.
#Compar ethe tir epressur ewitht he recom‐
mended tir epressur efor thec urrent operat‐
360
Wheel sand tires

ingstatus (→pag e357). Observ ethe no tes
on tir etemperatur e(→page356).
% The values displa yedint he multifunction dis‐
pla ym aydeviat efromt hose of thet irep res‐
sur egaug east heyr efer tosea le vel.At high
altitudes, thet irep ressur evalues indicated
by pressur egauges ar ehigher than those
shown bytheo n-boar dcomputer .Inthis
case, do no treduce thet irep ressure.
Mak esuretoo bservethef ollowing fur ther rela‐
te ds ubjec t:
RNotesont irep ressur e(→page356)
Rest arting thet irep ressur emonitoring sys‐
te m
Requ irement:
RTherecommended tir epressur eisc orrectly
se tfor ther espectiv eoperating condition on
eac hoft hefour wheels(
→pag e356).
Re star tt he tir epressur emonitoring sy stem in
th ef ollowing situations:
RThe tir epressur ehaschanged.
RThe wheels or tires ha vebeen changed or
newl yins talled.
On-boar dcomputer:
,6HUYLFH.7LUHV
#Swipe down wardsont heTouc hC ontrol on
th el eft-hand side of thes teering wheel.
The 8VH &XUUHQW 3UHVVXUHV DV 1HZ 5HIHU
HQFH 9DOXHV messageisshown in them ulti‐
function displa y.
#Pressatoconfir mtherestart.
The 7LUH 3UHVV 0RQLWR U5HVWDUWHG messageis
shown in them ultifunction displa y.
Cur rent wa rning messages ar edeleteda nd
th eh yello ww arning lam pgoes out.
Af tery ou ha vedriven foraf ewminutes, the
sy stem checks whe ther thec urrent tir epres‐
sure sarewithin thes pecified range. The cur‐
re nt tir epressures ar ethen accep tedasr ef‐
erence values and monitored.
Mak esuretoo bservethef ollowing fur ther rela‐
te ds ubjec t:
RNotesont irep ressur e(→page356) Ra
dio-equipment appr oval of thet irep res‐
sur em onitoring sy stem
Ra dio equipment appr oval numbers
Countr yRadio equipment appr oval
number
Canada
USA FCC ID: MRX
AG5SP4
FCC ID: MRXMFR
IC: 2546A -AG5SP4
Fu rther information on thed eclaration of con‐
fo rm ity forw irelessv ehicle components
(
→pag e23).
Loading thev ehicle
Tire and Loading Information placard
&
WARNING Risk of accident from overloa‐
ded tires
Overloaded tires ma yoverheat and bur stas a
consequence. Overloaded tires can also
impair thes teering and handling characteris‐
tic sa nd lead tobrak efailure.
Wheels and tires 361

Onlyuse tires, wheels or accessories tested
and appr ovedbyM ercedes-Benz.
*NO
TERisk todriving saf etyf romr etre a‐
de dt ires
Retreade dtires ar eneith er tested nor recom‐
mended byMercedes-Benz, since pr evious
damag ecanno talway sbed etected on
re treade dtires.
Fo rthis reason drivin gsafet yc anno tbeg uar‐
anteed.
#Do no tuse used ti resify ou ha veno
informatio nabout their pr evious usage.
* NO
TEPossible damag etowheels or tires
when drivin govero bstacles
Larg ewheelsh avealow er tir esection wid th.
The lo werthe tir esection width, theg reater
is ther isk of dama getowheels or tires when
drivingo vero bstacles.
#Av oid obs tacle sord rive part icular ly
carefully.
* NO
TEDama getoelectronic component
parts from theu se of tire-mounting tools
Ve hicles with atirep ressur emonitoring
sy stem: Electronic component parts are
located in thew heel. Tire -mounting tools
should no tbeused in thea reaoft hevalve.
This could otherwise damag ethe electronic
component parts.
#Ha ve thet ires changed at aqualified
specialis tworks hop onl y.
*NO
TEDama getosummer tires at low
ambient temp eratures
Using summer tires at very lowa mbientt em‐
peratures can caus ecrack stof orm, thereby
damaging thet ires permanentl y.
#Attemp eratures belo w45°F(7°C) use
M+S tires.
Ac cessor yparts that ar enotappr ovedfor your
ve hicle byMercedes-Benzora renotb eing used
cor rectl yc an impair theo perating saf ety. Befor
epurch asing and using non-appr oved
accessori es, visitaqualified specialis tworks hop
and enquir eabout:
RSuitability
RLegal stipulations
RFa ctor yrecommendations
&
WARNING Risk of accident wi thhigh
per form anc etires
The special tir etread in combinatio nwitht he
optimized tir ecompound means that ther isk
of skidding or hydroplaning on wetroads is
increased.
In addi tion,t he tir egripisg reatl yr educed at
al ow outside temp eratur eand tir erunning
te mp erature.
#Switc hont he ESP®and adap tyour
driving stylea ccordingly.
#Use M+S tir eatoutside temp eratures
of less than 10 °C (50 °F).
Wheels and tires 37
5

Thewear patte rnsont he front and rear wheels
dif fer:
RFr ont wheels wear mor eonthe shoulder of
th et ire
RRear wheels wear mor einthe center of the
tire
On vehicles that ha vethes ame size front and
re ar wheels,r otatet he wheels according tothe
inter vals in thet irem anufacturer's warranty
book in your vehicle documents. If this is not
av ailable, rotate thet ires every
3,000 to6,000 miles( 5,000to10,000 km),
dependin gonthewear.E nsuret hat thed irection
of rotatio nism aintained.
It is impe rativ etoo bservethei nstruction sand
saf etyn otes on "Wheel change" when doings o.
Notesons toring wheels
RAf terr emoving wheels, stor et hem in acool,
dr ya nd preferably dar kplace.
RProtect thet ires from conta ct withoil, grease
or fuel.
Overvie wofthe tire-chang etool kit
Apar tfromc ertain countr y-specific variations,
th ev ehicles ar enotequipped wit hatire-change
to ol kit. Form orei nformation on which tire-
ch anging tool kit ar erequired and appr ovedfor
per form ing awheel chang eony ourvehicle, con‐
sult aqualified specialis tworks hop.
Re quired tire-chang etool kit ma yinclude, for
ex ample:
RJack
RWheelc hock
RWheel wrench
RCentering pin
The tire-chang etool kit is located under the
trunk floor.
1Jack
2Glo ves
3Wheel wrench
4Centering pin
5Fo lding wheel chock
6Ra tche tfor jack
Wheels and tires 37
7

Setting upthef olding wheel chock
Prepa ring thev ehicle foraw heelchange
Re quirementsRThe requ ired tire-chang etool kit is available.
If yo ur vehicle is no tequipped wit hthe tire-
ch ang etool kit, consult aqualified specialis t
wo rkshop tofind outa boutsuitable tools.
RThe vehicle is no tonaslope.
RThevehicle is on solid, non-slipper yand le vel
ground .
#Applythee lectric parking brak emanually.
#Movethef ront wheels tothes traight-ahead
position.
#Ve hicles with automatic transmission:
shif tint op osition j.
#Vehicles with AI RBODYC ONT ROL:setthe
normal vehicle le vel(→pag e178).
#Switc hoffthee ngine.
#Mak esuret hat thee ngine cannot bestar ted.
#Place choc ks orother suitable items under
th ef ront and rear of thew heel that is diago‐
nall yopposit ethe wheel youw ish tochange.
#Re mo vetheh ub caps if necessary
(→pag e378).
#Raising thev ehicle (→pag e379).
Removing and in stalling hub caps
Re quirement:RThe vehicle is prepared foraw heelc hange
(→pag e378).
Plas tic hub cap
#Toremo ve:tur nthe center co veroft he hub
cap anti-clockwise and remo vetheh ub cap.
#Toinstall: makesuret hat thec enter co vero f
th eh ub cap is turned anti-clockwise.
#Position theh ub cap and tur nthe center
co verc lockwise until theh ub cap engages
ph ysicall yand audibly.
378
Wheels and tires

Aluminum hubcap
#Toremo ve:positio nsocket2 on hubc ap
1.
% The soc ketc an be found inthet ire-change
to ol kit.
#Po sition wheel spanner 3on soc ket2.
#Using whee lspa nner 3,turnh ub cap 1
counter-clo ckwise and remo veit.
#To install: position hub cap 1and tur nuntil
it is comple tely flush withthe wheel.
#Position soc ket2 on hubc ap1.
#Attach wheel spanner 3tosoc ket2 and
tighten theh ub cap clockwise.
Specified tightening torq ue: 18lb-ft
(25 Nm).
#Ra ise thev ehicle (→pag e379).
Raising thev ehicle when changing awheel
Requirements:RTher eareno persons in thev ehicle.
RThe vehicle has been prepared foraw heel
ch ang e(→pag e378).
RThe hub caps ha vebeen remo ved
(→pag e378).
Impo rtant no tesonu singthej ack:
Ronl yusethev ehicle-specific jac kthat has
been tested and appr ovedbyM ercedes-Benz
to raise thev ehicle.
Rthej ackiso nlyd esigned forr aising and hold‐
ing thev ehicle foras horttime while awheel
is being changed and no tfor maintenance
wo rkunder thev ehicle.
Rthej ackm ustbep laced on afirm, flat and
non-slip sur face. If necessar y,use alarge ,
load-bearing, non-slip underla y.
Rthef ootoft he jac kmustbep ositioned verti‐
call yunder thej acks uppor tpoint.
Rules of conduct when thev ehicle is raised:
RNe verp lace your hands or feet under the
ve hicle.
RDo no tlie under thev ehicle.
RDo no tstar tthe engine and do no trelease
th ee lectric parking brake.
RDo no topen or close an ydoor sort he trunk
lid.
Wheels and tires 37
9

&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 caus ethe wheel bolts/
wheel nuts tocome loose.
As aresult, youc ouldlose awheel while dr iv‐
ing.
#Ne vero il or grease thet hreads.
#Inthee vent of damag etothethre ads,
con tact aq ualified specialis tworks hop
immediatel y.
#Have thed amaged wheel bolts or dam‐
aged hub thre ads replaced.
#Do no tcontinue driving.
#Obser vethei nformation on thec hoice of
tires (→pag e374).
Fo rtires wit haspecified direction of rotation, an
ar row onthes ide wall of thet irei ndicates the
cor rect dire ction of rotation. Observ ethe direc‐
tion of rotatio nw heninstalling.
#Slide thew heel tobe mounted ont othe cen‐
te ring pi nand push it on.
&
WARNING Risk of injury from tightening
wheelb olts and nuts
If yo ut ighten thew heel bolts or wheel nuts
when thev ehicle is raised, thej ackc ould tip.
#Onl ytighten wheel bolts or wheel nuts
when thev ehicle is on theg round.
#Fo rs afet yr easons, onl yuse wheel bolts
whic hhaveb een appr ovedbyM ercedes-
Benz and fort he wheel in question.
* NO
TEDama getopaintwor kofthe wheel
ri mw hen scr ewing on thef irst whee lbolt
If th ew heel has toom uchp layw hen scr ew‐
ing in thef irst whee lbolt, th ew heel rimp aint
can be dama ged.
#Press thew heel firm lyagains tthe
whee lhub when scr ewing on thef irst
wheel bolt.
#Ti ghten thew heel bolts until they aref inger-
tight.
#Un scr ew thec entering pin.
#Tighten thel astw heel bolt until it is finger-
tight.
#Lo we rthe vehicle (→pag e382).
Loweri ngthev ehicle af teraw heelchange
Re quirements:RThe ne wwheel has been ins talled
(→pag e381).
#Place ther atche tring sp anner ont othe he xa‐
gon nut of thej acksot hatthel ette ring "AB"
is visible.
#To lowe rthe vehicle: turnthe ratche tring
sp an ner of thej acka nti-clockwise.
382
Wheels and tires