Audi A4 2013 Owner's Manual page 247

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symbols) indicate the positions of the tread
wear indicators. Worn tires must be replaced .
Different fig ures may apply in other countries
c:>
.&. .
Tire pressure
Incorrect tire pressure causes premature wear
and can cause sudden tire blow -out. For this
reason, tire pressure must be checked at least
once a month
c:> page
241.
Driving style
Driving fast around curves , heavy acceleration
and hard braking increase tire wear .
Rotatin g tires for mo re even wear
For all four t ires on your vehicle to have the
same se rvice life, we recommend that the
fro nt and rea r tires are rotated according to
the t ire manufacture r's suggested ti re rota-
tion intervals. Please remember the follow -
ing:
- Tire rotat ion inte rvals may differ from the
vehicle serv ice intervals outlined in your
Maintenance and Wa rranty Booklet .
- The longer one ti re is used in one location
on the vehicle, the more it wears at certa in
points; therefore, we recommend that you
fo llow the t ire manufacturer's
suggested
t ire rotation intervals .
- Vehicles with front -wheel drive experience
more tread wear on the front wheels com-
pared to all whee l drive (quattro ® ).
- Please rotate tires as shown
c:>
fig.
194.
- Extra care must be taken when rotating di-
rection-specific tires
c:> page
263 .
Wheel balancing
The wheels on new vehicles are balanced .
Howeve r, va rious situations d uring eve ryday
driving can cause them to be come unbal-
anced, resu lting in vibrations you can us ually
feel through the steering wheel.
Unba lanced wheels must be rebalanced to
avoid excessive wea r on st eer ing , suspens ion
and tires. A wheel must a lso be rebalanced
when a new tire is installed.
Tire s an d wheel s
245
Incorrect wheel alignment
Incor rect wheel alignment can cause exces-
sive tire wear, impairing the safety of the vehi -
cle . If tires show excessive wear, have the
whee l alignment checked by an a uthorized
Audi dealer or qualified workshop.
All wheel drive
Vehicles wit h quattro ® must a lways have tires
of the same size, construction and tread type.
For details see <=:>
page 191.
_8
WARNING
Sudden tire fa ilure can lead to loss of con-
trol, a crash and serious personal injury!
- Never drive a vehicle when the tread on
any tire is worn down to the wear indica-
tors.
- Worn ti res are a safety hazard, they do
not grip well on wet roads and increase
your risk of "hydroplaning" and loss of
control.
- Always keep chemicals that can cause
tire damage, such as grease, oil, gasoline
and brake fluid away from tires .
- Tires age even if they are not being used
and can fail sudden ly, especially at high
speeds. Tires that are more than 6 years
old can only be used in an emergency
and then w ith special care and at lower
speeds.
- Never mount used tires on your veh icle if
you are not sure of the ir "previous histo-
ry." Old used t ires may have been dam-
aged even though the damage cannot be
seen that can lead to sudden tire fai lure
and loss of vehicle control.

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