If
the tire pressu reshave been settothe lowe r
valu esfor lighter loadsand/or lowerroad
speed s,the pressu resshoul dbe reset tothe
higher values:
R ifyou want todrive withanincreased load
and/or
R ifyou want todrive athigher speeds
i The
tirepressu resforincreased loadsand/
or higher roadspeed s,shown inthe tire pres-
sure table, mayhave anegative effectondriv-
ing comfort.
If the tire pressu reisnot setcorrectly, thiscan
lea dto an excessive build-up ofheat andasud-
den loss ofpressu re.
For more information, contactaqua lifiedspe-
ciali stworkshop. Important
notesontire pressure G
WARNING
If the tire pressu redrops repeatedly,the
wheel ,valve ortire may bedama ged.Tire
pressu rethat istoo low may resul tin atire
blow -out. There isarisk ofan accident.
R Check thetire forforeign objects.
R Check whether thewheel islosing airorthe
valve islea king.
If you areunabl eto rectify thedama ge,con-
tact aqua lifiedspecia listworkshop. G
WARNING
If you fitunsui table accessorie sonto tire
valves ,the tire valves maybeoverloa dedand
malfu nction, whichcancause tirepressu re
loss. Duetotheir desig n,retrofitted tirepres-
sure monitors keepthetire valve open. This
can also resul tin tire pressu reloss. There isa
risk ofan accident.
Only screw thestandard valvecaporother
valve capsappro vedbyMercedes-Benz for
you rvehicle ontothetire valve.
Use asuita blepressu regau getocheck thetire
pressu re.The outer appearance ofatire does
not permit anyrelia bleconclusion aboutthe tire
pressu re.On vehicle sequi pped withtheelec-
tronic tirepressu remonitor, thetire pressu re
can bechecked inthe on-board computer. The
tiretemperature andpressu reincrease
when thevehicle isin motion. Thisisdepende nt
on the driving speedandtheload .
Therefore, youshoul donly correct tirepres-
sures whenthetires arecold.
The tires arecold:
R ifthe vehicle hasbeen parked withthetires
out ofdirect sunlightfor atlea stthree hours
and
R ifthe vehicle hasbeen driven lessthan 1mile
(1.6 km)
The tiretemperature changesdependingon the
outsid etemperature ,the vehicle speedandthe
tire load .If the tire temperature changesby
18 ‡(10 †), thetire pressu rechanges by
appro ximately 10kPa (0.1 bar/ 1.5psi).Take
this into account whenchecking thepressu reof
warm tires.Onlycorrect thetire pressu reifit is
too low forthe current operatingconditions. If
you check thetire pressu rewhen thetires are
warm, theresul tingvaluewil lbe highe rthan if
the tires were cold.Thisisnormal. Donot
reduce thetire pressu reto the valu especifie d
for cold tires. Thetirepressu rewou ldotherwise
be too low.
Observe therecommended tirepressu resfor
cold tires:
R on the Tire andLoadi ngInformation placard
on the B-pilla ron the driver's side
R in the tire pressu retable inthe fuel fillerflap
(Y page 141) Underinfl
atedoroverin flated tires
Underinfl atedtires G
WARNING
Tires withpressu rethat istoo low can over-
heat andburst asaconsequence. Inaddi tion,
they alsosuffer fromexcessive and/orirreg-
ula rwea r,which canseverel yimpa irthe brak-
ing propertie sand thedriving characteristics.
There isarisk ofan accident.
Avoid tirepressu resthat aretoo low inall the
tires, includi ngthe spare wheel.
Underinfla tedtires may:
R overhea t,lea ding totire defects
R adverse lyaffect handling Tire
pressure
295Wheelsand tires Z
Count
ry Ra
dio type approval number ne
doit pasprod uiredebrouil -
lage, et(2) L'aut isatuer del'ap-
pareil doitacceptertout brouil -
lage radioe lectrique subi,meme
si le brouil lageestsusc eptible
d'en comprom ettrelefon c-
tio nnemen t.WARN ING:Chang es
or modi ficatio nsnot expressive ly
appro vedbythepart yres pon si-
ble forcom plian cecould voidthe
users authorityto oper atethe
equipm ent.The term"IC: "befo re
th eradio certificat ion num ber
onl ysign ifies Canada technical
spec ificatio nswere met. Canada IC:
2546A-MW2 433A
IC: 2546A-GG4 Thisdevic ecom -
plies withpart15oftheFCC
rules andwith licenseexe mpt
RSS standar dsofIndust ryCan-
ada. Oper ationis subj ecttothe
follo wing condition s.(1) This
devic emay notcause harmful
int erf eren ce,and (2)This devic e
must accept any interf eren ce
rec eived ,inc ludin gint erf eren ce
th at may cause undesiredoper -
atio n.Le pres entappare ilest
con forme d'indust rieCanada
applic ablesauxappare ilsradio
exe mpt sde lice nse. L'ex ploit a-
tio nest auth oriseeaux deux con-
dit ion ssuivan tes.(1). L'app areil
ne doit pasprod uiredebrouil -
lage, et(2) L'aut isateur del'ap-
pareil doitacceptertout brouil -
lage radioe lectrique subi,meme
si le brouil lageestsusc eptible
d'en comprom ettrelefon c-
tio nnemen t.WARN ING:Chang es
or modi ficatio nsnot expressive ly
appro vedbythepart yres pon si-
ble forcom plian cecould voidthe
users authorityto oper atethe
equipm ent.The term"IC: "befo re
th eradio certificat ion num ber
onl ysign ifies Canada technical
spec ificatio nswere met.
IC: 2546A-MC34 MA4 Load
ingthevehicle Inst
ruction labels fortires and loads G
WAR
NING
Ove rloade dtir es can over heat ,causi nga
blowout .Ove rloade dtir es can also impair the
st eerin gand drivingchar acteris ticsand lead
to brak efailur e.Ther eis arisk ofacc iden t.
Obse rvetheload rating ofthetir es. The load
rat ing must beatleast halfoftheGAWR of
your vehicle.Nev erover load thetir es by
exc eedin gth emax imum load.
Two instruct ion labels onyour vehicle show the
max imum possibleload.
(1) TheTire andLoadin gIn for mat ionplacar dis
on theB- pillar onthedriv er'sside. TheTire
and Loadin gIn for mat ionplacar dshows the
max imum permissiblenum berofocc u-
pant sand themax imum permissibleveh icle
load. Italso contain sdet ails ofthetir esiz es
and correspon ding pressures fortires
moun tedatthefac tory.
(2) Thevehicle iden tificat ion plat eis on theB-
pillar onthedriv er'sside. Thevehicle iden -
tif icat ion plat einf orm syou ofthegro ss
veh icle weight rating .It is made upofthe
veh icle weight ,all veh icle occupant s,the
fuel andthecar go. You canalso findinf or-
mat ionabout themax imum grossaxle
weight rating onthefro ntand rear axle.
The maximum grossaxle weight rating is
th emax imum weight that can becar ried by
one axle (front orrear axle) .Nev erexc eed
th emax imum loadorthemax imum gross
axle weight rating forthefro ntor rear axle. 0043
B-pillar ,driv er'sside Load
ingthevehicle
301Wheels andtires Z
