2018 MERCEDES-BENZ E-CLASS SEDAN width

Notesonn oise or unusualh andlingcharac‐
te rist ics
While driving ,pay attention tovibrations, noises
and unusual handling characteristics, e.g .pulling
to one side. This ma yindicat ethat thew heels or
tires ar edamaged. If yous uspect that at irei s
defective, reduce your speedi mmediatel y.Stop
th ev ehicle as soon as possible tocheckt he
wheels and tires ford ama ge.H idden tir edam‐
ag ec ould also be causing theu nusual handling
ch aracteristics. If youf ind no sign sofdamage,
ha ve thet ires and wheels checkedataq ualified
specialis tworks hop.
Re gular checking of wheels and tires
&
WARNING Risk of accident from dam‐
aged tires
Dama gedt ires can cause tir epressur eloss.
As aresult, youc ouldlose cont rolofy our
ve hicle.
#Chec kthe tires regularly fors igns of
dama geand replace an ydamaged tires
immediatel y.
&
WARNING Risk of aquaplaning duet o
insuf ficient tir etread
Insuff icienttiret read will result in reduced
tir eg rip. The tir etread is no longer able to
dissipat ewater.
This meanst hat in heavyrain or slush the
ri sk of hydroplaning is increased, in particu‐
lar if vehicle speed is no tadap tedtos uitthe
conditions.
If th et irep ressur eist oo high or tool ow ,
tires ma yexhibit dif fere nt le vels of wear at
dif fere nt locations on thet irec onta ct sur‐
fa ce.
#Thus, yous hould regularly checkt he
tread dep thand thec ondition of thet ire
conta ct surf ace across thee ntir ew idth
of all tires.
Minimum tread dep thfor:
RSummer tires: âin (3 mm)
RM+S tires: ãin (4 mm)
#Fors afet yr easons, replace thet ires
befor ethe legally prescribed limit for
th em inimum tread dep thisreached.
Car ryout thef ollowing checks on all wheels reg‐
ularly ,atleastonce amonthorasr equired, e.g.
prior toalongj ourney or drivin goff-roa d:
RChec kthe tir epressur e(→page356).
RVisual inspection of wheels and tires for
damage.
RChec kthe valvec aps.
The valves mus tbeprotected agains tmois‐
tur ea nd dir tbythevalvec aps appr oved
especially fory our vehicle byMercedes-Benz.
RVisual checkoft he tir etread dep thand the
tir ec ontact surf ace condition across the
entir ewidth.
354
Wheels and tires

Nevere xceed maximum tir epressure 1speci‐
fi ed fort he tire.
Information on tir echaracteristics
%
The dat ashown in thei mag eise xamp le
data.
This information descri besthet ype of tir ecord
and then umber of la yers in side wall1 and
under tir etread 2.
Tire size designation, load-bearing capacity,
speed ratin ga nd load index
&
WARNING Risk of injury thro ugh exceed‐
ing thes pecified tir eload rating or the
permissible speed rating
Exceeding thes pecified tir eload rating or
th ep ermissible speed rating ma ylea dtot ire
damage andtothet ires bur sting.
#Therefore, onl yuse tir etypes and sizes
appr ovedfor your vehicle model.
#Obser vethet irel oad rating and speed
ra ting requ ired fory our vehicle.
1Preceding letter
2Nominal tir ewidthinm illimeters
3Aspect ratio in %
4Tire code
5Rimd iame ter
6Load-bearing index
7Speed rating
8Loadi ndex
% The dat ashown in thei mag eise xamp le
data.
Info rmatio nabout readingt ired atac an be
obtaine dfroma nyqualified specialis tworks hop.
Wheels and tires 369

Preceding letter1:RWithout :passenger vehicle tires according to
Europea nmanufactu ring standards.
R"P": passenger vehicle tires according toUS
manufacturing standards.
R"LT": light truc ktires accordingtoUSm anu‐
fa cturing standards.
R"T": compact emer gency spa rewheels with
high tir epressur ethat ar eonly designe dfor
te mp orar yuse in an emer gency.
Aspec tratio 3
:
Ra tio betwee ntireh eight and tir ewidth in per‐
cent (ti reheight divided bytirew idth ).
Tir ec ode4
(ti re type):R"R"r adial tire
R"D": bias ply tire
R"B": bias belted tires
R"ZR": radial tir ewitham aximum speed abo ve
14 9m ph (240 km/h) (optional) Rim diame
ter5
:
The diam eter of theb ead seat (no tthe diame ter
of ther im flange). The rimd iame teriss pecified
in inches (in).
Load-bearing index 6
:
Numerical code that specifies them aximum
load-bearing capacity of atire( e.g. "91" cor re‐
sponds to1356 lbs (6 15kg)).
The load-bearing capacity of thet irem ustbea t
leas thalf thep ermissible axle load of your vehi‐
cle. Do no toverload thet ires byexc eeding the
specified load limit.
See also:
RMaximum permissible load on theT irea nd
Loading Info rmatio nplacar d(→page361)
RMaximum tir eload (→pag e368)
RLoad ind ex
Speed rating 7
:
Specifie sthe appr oved maximum speed of the
tire. %
An electroni cspeed limiterpreve nts your
ve hicle from exceeding aspeed of 130m ph
(2 10 km/h).
Make surethat your tires ha vether equired
speed rating .You can obtain information on the
re qu ired speed rating from an au thorized
Mercedes-Benz Center.
Summer tires
Inde xS peedrating
Qu pto100mph(160k m/h)
Ru pto106mph(170k m/h)
Su pto112mp h(180k m/h)
Tu pto118mp h(190k m/h)
Hu pto130mph(210k m/h)
Vu pto149mph(240k m/h)
Wu pto168mph(27 0k m/h)
Yu pto186mph(300 km/h )
370
Wheels and tires

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