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A
WARNING
,~
Using the wrong snow chains for your vehi-
cle or installing them incorrectly can in-
crease the risk of loss of control leading to
serious personal injury.
- Snow chains are available in different
sizes. Always make sure to follow the in-
structions provided by the snow chain
manufacturer .
- When driving with snow chains, never
drive faster than the speed permitted for
your specific snow chains.
- Always observe local regulations .
(D
Note
- Remove snow chains before driving on
roads not covered with snow to avoid
damaging tires and wearing the snow
chains down unnecessarily.
- Snow chains, which come into direct con-
tact with the wheel rim, can scratch or
damage it. Therefore, make sure that the
snow chains are suitably covered . Check
the position of the snow chains after
driving a few yards and correct if neces-
sary. Follow the instructions from the
snow chain manufacturer when doing so.
@
Tips
Where snow chains are mandatory oncer-
tain roads, this normally also applies to
vehicles with all-wheel drive.
Wheel bolts
Wheel bolts must always be tightened to the
correct torque.
The design of wheel bolts is matched to the
factory installed rims. If different rims are fit-
ted, the correct wheel bolts with the right
length and correctly shaped bolt heads must
be used. This ensures that wheels are fitted
securely and that the brake system functions
correctly .
Tires and wheels
205
In certain circumstances, you may not use
wheel bolts from a different vehicle - even if it
is the same model
r:!> p age 229.
A
WARNING
Improperly tightened or maintained wheel
bolts can become loose causing loss of
control, a collision and serious personal in-
jury.
- Always keep the wheel bolts and the
threads in the wheel hubs clean so the
wheel bolts can turn easily and be prop-
erly tightened.
- Never grease or oil the wheel bolts and
the threads in the wheel hubs . They can
become loose while driving if greased or
oiled, even if tightened to the specified
torque.
- Only use wheel bolts that belong to the
rim being installed.
- Never use different wheels bolts on your
vehicle.
-Always maintain the correct tightening
torque for the wheel bolts to reduce the
risk of a wheel loss. If the tightening tor-
que of the wheel bolts is too low, they
can loosen and come out when the vehi-
cle is moving. If the tightening torque is
too high, the wheel bolts and threads
can be damaged and the wheel can be-
come loose.
(D
Note
The specified torque for the wheel bolts is
90 ft lb (120 Nm) with a tolerance of ± 7 .4
ft lb(± 10 Nm). Torque wheel bolts diago-
nally. After changing a wheel, the torque
must be checked as soon as possible with a
torque wrench - preferably by an author-
ized Audi dealer or qualified workshop.
Low aspect ratio tires
Your Audi is factory-equipped with low aspect
ratio tires. These tires have been thoroughly
tested and been selected specifically for your
model for their superb performance, road feel .,.
•
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