re s is ta nc e to th e g e ne ra tio n o f he a t a nd its
a b ility to d is s ip a te h e a t w he n te s te d u nd e r
c ontro lle d c ond itio ns on a s p e c ifie d ind oor
la b ora to ry te s t w he e l.
s a fe ty yo u s hould a lwa ys h a ve s uc h tire s
re p la c e d .
S us ta ine d h igh te m p e ra tu re c a n c a us e th e
m a te ria l o f th e tire to d e ge ne ra te a nd
re d uc e tire life , a nd e xc e s s ive te m p e ra tu re
c a n le a d to s ud d e n tire fa ilure . Th e gra d e C
c orre s p ond s to a le ve l o f p e rfo rm a nc e
whic h a ll p a s s e nge r c a r tire s m us t m e e t
und e r th e Fe d e ra l Mo to r Ve hic le S a fe ty
S ta nd a rd No . 1 09. G ra d e s B a nd A re p re -
s e nt h ighe r le ve ls o f p e rfo rm a nc e o n th e
la b ora to ry te s t w he e l th a n th e m inim um
re q uire d b y la w.
We a r in d ic a to rs a t th e tre a d -gro ove b a s e ,
re fe r to a rro w, a re d is trib ute d ove r th e tire 's
c irc um fe re nc e a nd a re m a rke d o n th e tire
s id e wa ll w ith TWI – Tre a d We a r In d ic a to r.
At a tre a d d e p th o f 0 .0 63 in /1.6 m m th e s e
ind ic a to rs , s igna l th a t th e tire s h a ve
The te m p e ra tu re g ra d e fo r th is tire is
e s ta b lis he d fo r a tire th a t is p ro p e rly
infla te d a nd n ot o ve rlo a d e d . Exc e s s ive
s p e e d , u nd e rinfla tio n, o r e xc e s s ive lo a d -
ing, e ith e r s e p a ra te ly o r in c om b ina tio n,
c a n c a us e h e a t b uild up a nd p os s ib le tire
fa ilure .<
re a c he d th e le ga lly p e rm is s ib le w e a r lim it.
Tire d a m a g e
Un us ua l vib ra tio ns e nc ounte re d d ur-
ing n orm a l ve hic le o p e ra tio n c a n ind i-
c a te tire fa ilure o r s om e o th e r ve hic le
d e fe c t. Th is c a n, fo r e xa m p le , b e c a us e d b y
d rivin g o ve r c urb s . Th e s e kin d s o f p ro b -
le m s m a y a ls o b e s igna le d b y o th e r
c ha nge s in ve hic le re s p ons e , s uc h a s a
s tro ng te nd e nc y to p ull to th e le ft o r rig ht.
S hould th is oc c ur, re s p ond b y im m e d ia te ly
re d uc ing yo ur s p e e d . P ro c e e d c a re fully to
th e n e a re s t B MW S p orts Ac tivity Ve hic le
Ce nte r o r p ro fe s s iona l tire c e nte r, o r h a ve
th e ve hic le to we d in to h a ve it, its w he e ls
a nd tire s in s p e c te d .
M+S
Win te r a nd a ll-s e a s on tire s .
The s e h a ve b e tte r w inte r p ro p e rtie s th a n
s um m e r tire s .
Tire c o n d itio n
Ins p e c t yo ur tire s fre q ue ntly fo r tre a d we a r,
s igns o f d a m a ge a nd fo r fo re ign o b je c ts
lod ge d in th e tre a d . C he c k th e tre a d p a t-
te rn d e p th .
Tire d a m a ge , e xte nd ing to s ud d e n a nd
c om p le te lo s s o f p re s s ure in e xtre m e
c a s e s , c a n p os e a p ote ntia lly le th a l s a fe ty
ha za rd fo r th e ve hic le 's o c c up a nts a nd
oth e r ro a d u s e rs a like .<
Tire tre a d
The tre a d d e p th s hould n ot d ro p b e low
0
.1 2 in/3 m m , a lth ough, fo r e xa m p le , Eu ro -
p e a n le gis la tio n o nly s p e c ifie s a m inim um
tre a d d e p th o f 0 .0 63 in /1.6 m m . At tre a d
d e p th s b e low 0 .1 2 in /3 m m , th e re is a n
inc re a s e d ris k o f high-s p e e d hyd ro p la ning, Re p la c in g w h e e ls /tire s
e ve n whe n only s m a ll a m ounts of wa te r a re
p re s e nt o n th e ro a d s urfa c e .
Un p ro fe s s iona l a tte m p ts b y la ym e n to
s e rvic e tire s c a n le a d to d a m a ge a nd
a c c id e nts .
Ha ve th is w ork p e rfo rm e d b y s kille d p ro -
fe s s iona ls o nly. All B MW S p orts Ac tivity
Ve hic le C e nte rs w ill b e h a p p y to h e lp yo u
As w inte r tire s d is p la y a n otic e a b le lo s s in
th e ir a b ility to c op e w ith c old -we a th e r d riv-
ing c ond itio ns o nc e th e tre a d w e a rs to
b e low 0 .1 6 in /4 m m , to e ns ure c ontin ue d
8
9
Online Edition for Part No. 01 41 0 157 631 - © 07/03 BMW AG
| Categories | BMW Manuals, BMW X3 Manuals |
|---|---|
| Tags | BMW E83, BMW X3 2.5i, BMW X3 3.0i |
| Model Year | 2004 |
| Download File |
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| Document File Type | |
| Copyright | Attribution Non-commercial |
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