2013 AUDI A5 CABRIOLET wheel size

24 2 T ire s and wheel s
Traction
The traction grades, from highest to lowest,
are AA, A, Band
C. T hose grades represent the
tire's ability to stop on wet pavement as measured under controlled conditions on
specified government test surfaces of asphalt
and concrete. A tire marked C may have poor
traction performance
c:> .&. .
Te mp eratu re
The temperature grades are A (the highest),
B, and
C, representing the tire's resistance to
the generation of heat and its ability to dissi­
pate heat when tested under con trolled condi­
tions on a specified i ndoor laboratory test
wheel.
Sustained high temperature can cause the
material of the tire to degenerate and reduce
tire life, and excessive temperature can lead
to sudden tire failure
c:> ,& .
The grade C corresponds to a level of perform­
ance which all passenger car tires must meet under the Federal Motor Veh icle Safety Stand­
ard No .
109 . Grades Band A represent h igher
l eve ls of performance on the laboratory test
wheel than the m inimum required by law.
.&_ WARNING
T he traction grade assigned to this t ire is
based on straight-ahead braking traction
tests, and does not include acceleration,
cornering, hydrop laning or peak traction
characteristics.
A WARNING
The temperature grade for this tire is es­
tablished for a t ire that is properly inflated
and not overloaded. Excessive speed, un­
derinflation, or excessive loading, either
separately or in combination, can cause
heat buildup and possible tire fa ilu re.
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Winter tires
Winter tires can improve vehicle handling on
snow and ice . At temperatures below 45 °F
(7 °C) we recommend changing to winter
tires.
In some heavy snow areas, local governments
may require true w inter o r "snow" t ires, those
with very deeply cut tread . T hese tires should
o n ly be used in pairs and be installed on a ll
f o ur wheels . Make sure you purchase snow
ti res that are the same size and construction
type as the other tires on yo ur vehicle.
You r vehicle is equipped with al l wheel d rive,
th is will improve traction d uring win ter driv­
ing, even with the standard tires. However, we
strong ly recommend that you always equip all
fo ur wheels on your vehicle with correctly fit­
ted winter tires or a ll-season tires, when win­
ter road cond itions are expected. This also im­
proves the veh icle's brak ing performance and
reduces stopping d istances .
Summer tires provide less grip on ice and
snow.
Winter tires (snow tires) must always be fitted on all fo ur whee ls .
Ask your authorized A udi dealer or qualified
workshop for permit ted
w in ter ti re size s. Use
only radial winter tires .
Winter tires lose their effec tivenes s when the
tread is wo rn down to a depth of
0 .157 inch
(4 mm) .
Only d rive w ith w inter t ires under w inte r co n­
ditions. S ummer t ires handle bette r when
there is no snow o r ice on the roads and the
temperature is above 45 °F (7 °C) .
If you have a flat ti re, see notes on spare
whee l
c:> page 238 .
Please always remember that winter tires may
have a lower speed rating than the tires origi­
nally installed on your vehi cle at the time it
was ma nufactu red. P lease see
c:> page 239,
Speed rating (Letter code)
for a lis ting o f the
speed rating lette r codes and the max imum
speed at which the tires can be driven . ..,.

The speed rating letter code (c::> page 230) is
on the side wall of the tire
c::> page 238.
A WARNING
Winter tires have maximum speed limits
that may be lower than your vehicle's max­
imum speed . Always know the maximum
speed before driving off. Never drive faster
than the speed permitted for your specific
winter tires . This will cause damage to the
tires leading to an accident and serious
personal injury to you and your passen­
gers.
A WARNING
Driving faster than the maximum speed
for which the winter tires on your vehicle
were designed can cause tire failure in­ cluding a blowout and sudden deflation,
loss of control, crashes and serious per­
sonal injuries . Have worn or damaged tires
replaced immediately.
- Winter tires have maximum speed rating
that may be lower than your vehicle's
maximum speed .
- Never drive faster than the speed for
which the winter or other tires installed
on your vehicle are rated .
A WARNING
Always adjust your driving to the road and
traffic conditions. Never let the good ac­
celeration of the winter tires and all wheel
drive tempt you into taking extra risks . Al­
ways remember :
- When braking, an all wheel drive vehicle
handles in the same way as a front drive
vehicle.
- Drive carefully and reduce your speed on
icy and slippery roads, even winter tires
cannot help under black ice conditions.
@l For the sake of the environment
Use summer tires when weather condi­
tions permit. They are quieter, do not wear
as quickly and reduce fuel consumption.
Tires and wheels 243
Snow chains
Snow chains may be fitted only to the front
wheels , and only to certain tire sizes. Ask your
authorized Audi dealer on which tire sizes
snow chains can be used.
The snow chains must have low-profile links
and must not be thicker than 0.53 inch
(13.S mm) , including the lock.
Remove wheel center covers and trim discs
before putting snow chains on your vehicle
c::> 0 . For safety reasons cover caps must then
be fitted over the wheel bolts. These are avail­
able from authorized Audi dealers.
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.
(D Tips
Where snow chains are mandatory on cer­
tain roads, this normally also applies to
vehicles with all wheel drive .
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-Drive carefully on roads with potholes, deep
gullies or ridges. The impact from driving
thro ugh or over such obstacles can damage
your tires. Impact with a curb may also cause damage to your tires.
- After any impact, immediately inspect your
tires or have them inspected by the nearest
authorized Aud i dealer. Replace a damaged
t ire as soon as possible .
- Inspect your t ires every 2,000 miles (3,000
km) for damage and wear . Damage is not al­
ways easy to see . Damage can lead to loss of
air and underinflation, wh ich could eventu­
ally cause ti re fail ure. If you be lieve that a
t ire may have been damaged , replace the
t ir e as soon as possible.
- These tires may wea r more q uick ly than oth­
ers.
- Please also remember that, wh ile these t ires
deliver respons ive handling, they may ride
less comfortably and make mo re noise than
othe r choices .
Reduced performance in winter /cold
season condit ions
All t ires are des igned for certa in pu rposes.
The low aspect ratio, ultra high pe rformance
tires originally installed o n your vehicle are in­
tended for max imum dry and wet road per­
formance and handling . They are not suitable
for cold, snowy or icy weather condit ions. If
you dr ive under those circumstances, you
should equip your veh icle with all-season or
winter t ires, which offer better traction under
those cond itions . We suggest you use the re c­
ommended snow or all-season tires specified
for your ve hicl e, or their equ ivalent .
Refer to~
page 242 for more deta iled info r­
mat ion regarding win ter t ires.
Tire pressure
monitoring system
U) General notes
Ap plies to vehicles: with tire pressure monitoring system
Each t ire , includ ing the spare (if provided),
should be che cked mo nth ly when cold and in-
Tire s an d wheel s 245
flated to the inflation pressure recommended
by the vehicle man ufact urer on the vehicle
placard or tire inflat ion pressure labe l. (If your
vehicle has tires of a different size than the
s ize indicated o n the vehicle placard or tire in­
flat ion pressure labe l, you shou ld determine
the proper t ire inflation pressu re for those
tires) .
As an added safety feature, your veh icle has
been equipped with a tire pressure monitoring
system ( TPMS) that illum inates a low tire
pr essure te lltale when one o r more of you r
tir es is s ignificant ly unde r-inflated. Acco rding ­
ly, when the low tire pressure tell tale illumi­
nates, you shou ld stop and check you r tires as
soon as possib le, and inflate them to the
proper pressure . Driving on a significant ly un­
der- inflated t ire causes the tire to overheat
and can lead to tire fa ilure. Under-inflation al­
so reduces fuel effic iency and tire tread life,
and may affect the vehicle's hand ling and
stopp ing abil ity .
Please note that the TPMS is not a substit ute
for proper tire ma intenance, and it is the driv­
er 's respons ibility to maintain correct tire
pressure, even if under-inflation has not
reached the level to tr igger illuminat ion of the
T PMS low ti re p ressu re tellta le.
Your vehicle has also been equipped with a
T PMS ma lfunction ind icator to ind icate when
the system is not operating p rope rly . T he
T PMS ma lfun ction indicator is comb ined w ith
the low tire pressure te lltale . Whe n the sys ­
tem detects a malfunc tion, the telltale will
flash for approximate ly one mi nute and then
remain continuously i lluminated. T his se­
quence will continue upon subsequent vehicle
start-ups as long as the malfunct ion exists .
When the malfunction indicato r is illum inat­
ed, the system may not be ab le to detect or
s ignal low tire pressure as intended. TPMS
malfu nctions may occur for a var iety of rea­
sons, including the installation of replace­
ment or a lternate tires or wheels on the vehi ­
cle that p revent the TPMS from functioning
properly. Always check the TPMS malfunction
t e llt ale after rep laci ng one or more tires o r ..,.
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