2012 AUDI A7 wheel

24 6 T ire s and whee ls
Tra ction
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 t ire'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 o r 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.
-
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 othe r tires on yo ur vehicle.
If your vehicle is equ ipped w ith all-whee l
drive*, t his w ill improve traction during win ter
driv ing, even with the standard tires . Howev ­
er, we strongly recommend that you always
equip all four wheels on your vehicle w ith cor­
rect ly fitted winter tires or all-season t ires,
when winter road condit ions are expected.
This also improves the veh icle 's brak ing per­
formance 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 au thorized A udi dealer or qualified
workshop for permit ted
winter ti re size s. Use
only radial winter tires .
Winter tires lose their effec tivenes s whe n the
tread is wo rn down to a depth o f
0.157 inch
(4 mm) .
Only d rive w ith w inter t ires under w inte r co n­
ditions. S umme r tir es handle bette r whe n
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 242 .
Please always remember that winter tires may
have a lowe r speed rating than the tires o rigi­
nally i nstalled on your vehi cle at the time it
was ma nufactu red. P lease see
c:> page 243,
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 233) is
on the side wall of the tire
c::> page 242 .
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
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.
If you are going to use snow chains, then you
must install them on the front wheels at
least.
The snow chains must have low-profile links
and must not be thicker than 0.4 inch
(10,S mm) , including the lock.
Remove wheel center covers and trim discs
before putting snow chains on your vehicle
c::> (]) . 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. ..,.
247
•
•

248 Tire s and whee ls
Where snow chains are mandatory oncer­
tain roads, this normally also applies to ve­
hicles with a ll-wheel drive.
Wheel bolts
Wheel bolts must always be tightened to the
correct torque .
The design of whee l bolts is matched to the
factory insta lled rims . If different rims are fit­
ted, the correct wheel bolts with the r ight
length and correctly shaped bolt heads must
be used. This ensures that wheels are fitted
securely and that the brake system functions
correctly .
In certain circumstances, you may not use
wheel bolts from a different vehicle -even if it
is the same model
r=> page 275.
A WARNING
Improperly tightened or maintained wheel
bolts can become loose caus ing loss of
cont ro l, a co llision and serious persona l 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
er ly t ightened .
- Never grease or oil the wheel bo lts and
the threads in the wheel hubs. They can
become loose while d riving 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 whee ls bolts on your
vehicle.
- Always maintain the co rrect tighten ing
torq ue fo r the wheel bo lts to reduce the
risk of a wheel loss . If the tightening tor­
que of the wheel bo lts is too low, they
can loosen and come out w hen the veh i­
cle is moving. If the tighteni ng torque is
too high, the whee l bolts and threads can be damaged and the whee
l can be­
come loose.
@ Note
The specified torque for the whee l bolts is
90 ft lb (120 Nm) with a tolerance of± 7,4
ft lb(± 10 Nm) . Torque whee l bolts diago­
nally. After changing a whee l, the torque
must be checked as soon as possible with a
torque wrench -preferably by an author­
i zed Audi dealer or qualified workshop .
Low aspect ratio tires
Your Audi is factory-eq uipped w it h low aspect
ratio tires. These tires have been tho roughly
tested and been se lected specifically fo r your
model for their superb perfo rmance, road fee l
and handling under a variety of driving condi ­
t ions . Ask your author ized A udi dealer for
more details.
T he low aspect ratio of these tires is ind icated
by a numera l of
55 or less in the tire's s ize
designation. The numera l represents the ratio
of the tire's sidewa ll height in relation to its
tread width expressed in percentage. Conven­
t iona l tires have a he ight/w idth ratio of 60 or
more .
The performance of low-aspect -ratio tires is
particularly sens iti ve to imp roper inflation
pre ssure. It is therefore important that low
a spect ratio tires ar e inflat ed to the specified
pre ssure and that the inflation pressure i s
r e gularly ch ecked and maintain ed. Tire pre s·
sure s should be checked at lea st once a
m onth and alw ays bef ore a long trip
r=> page 237, Checking tire pressure .
What you can do to avoid tire and rim
damage
Low aspect ratio tires can be d amaged more
easily by impact with potholes, curbs, gull ies
or ridges on t he road, particularly if the tire is
u nd eri nflated.

In o rder to minimize the occurrence o f impact
damage to the tires of your vehicle, we recom­ mend that you observe the following precau­
tions :
- Always maintain recommended inflation
pressures. Check your tire pressure every
2,000 miles (3,000 km) and add a ir if neces­
sary.
- Drive carefu lly on roads with potholes, deep
gullies or ridges. The impact from driving
through 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 poss ible .
- In spect 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 unde rinflation, wh ic h could eventu­
ally cause ti re fail ure.
If yo u be lieve that a
ti re may have been damaged , replace the
tire as soon as possible.
- These tires may wear more quick ly than oth ­
ers.
- Please a lso remembe r that, whi le these t ires
deliver respons ive handling, they may ride
less comfortably and make more noise than
other c hoices.
Reduced p erformance in winter /cold
s ea son condit ion s
All ti res are designed for certain purposes .
The low aspect ratio, ultra hig h performance
tires originally installed on your veh icle are in­
tended for max imum dry and wet road per­
formance and handling . They are not suitable
for cold, snowy or icy weather cond it ions . If
you dr ive under those circumstances, you
should equip your vehicle with all-season or
winter tires, whi ch offe r better traction under
those cond it ions . We suggest you use the rec­
ommended snow or all -season tires specified
for your ve hicle, or their equiva lent .
Refe r to ~
page 246 for mo re deta iled info r­
mat io n regarding w in ter t ires.
Tire s an d wheel s 249
Tire pressure
monitoring system
ill General notes
App lies to vehicles : wi th tire p ress ure mo nito rin g system
Each tire, incl uding the spare (if provided),
shou ld be checked monthly when co ld and in ­
flated to the inflation pressure recommended
by the veh icle manufacturer on the veh icle
placard or tire inflation pressure label. (If your
vehicle has tires of a d ifferent size than the
s iz e indicated on the vehicle placard or tire in­
flat io n pressu re labe l, you shou ld dete rmine
the p roper t ire inflation p ress ure fo r those
t i r es).
As an added safety feature, your veh icle has
been equipped with a tire pressure monitoring
system ( TPMS) that illum inates a low ti re
pressure te lltale whe n one or more o f your
ti res is significant ly under -inflated . According­
ly, when the low tire pressure te lltale i llumi­
nates, you shou ld stop and check your tires as
soon as possib le, and inflate them to the
proper pressure. Driving on a sign ificantly 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 subst itute
fo r proper tire ma intenanc e, and it is the d riv­
er's respo nsibility to maintain co rrect tire
pressure, even if under-inflation has not
reached the leve l to tr igger illum inat ion of the
T PMS low ti re p ressu re tellta le .
You r vehicle has also been equipped with a
T PMS ma lf u nction indicator to ind icate w hen
the sys tem is not operating prope rly . T he
T PMS ma lfunction indicator is combined w ith
the low tire pressure te lltale. When the sys ­
tem detects a malfunction, the telltale wi ll
flash for approximate ly one min ute and then
rema in con tinuously i llum inated . T hi s se­
quence will continue upon subsequent vehicle
start-ups as long as the malfunct ion exists . ..,.
•
•

250 Tires and wheels
When the malfunction indicator is illuminat­
ed, the system may not be able to detect or
signal low tire pressure as intended . TPMS
malfunctions may occur for a variety of rea­
sons, including the installation of replace­ ment or alternate tires or wheels on the vehi ­
cle that prevent the TPMS from funct ioning
properly . Always check the TPMS malfunction
telltale after replacing one or more t ires or
wheels on your veh icle to ensure that the re­
p lacement or a lternate tires and wheels allow
the TPMS to continue to function properly.
Tire pressure indicator appears
Applies to vehicles: with tire p ressure mo nitoring syste m
The tire pressure indicator in the instrument
cluster informs you if the tire pressure is too
low or if there is a system malfunction.
Fig. 181 Display : underinflatio n warning
Fig. 182 Display : Syste m mal functio n
Using the ABS sensors, the tire pressure moni­
toring system compares the tire tread circum­
ference and vibration characteristics of the in­
d ividual tires.
If the pressure decreases in one
or more tires, th is is indicated in the instru­
ment cluster with a warning symbol
'9] and a
message ¢
fig . 181.
The tire pressure monitoring system must be
reset via MMI each time the pressures are ad- justed
(e.g. when switching between partial
and full load pressure) or after changing or re­
placing a tire on your vehicle ¢
page 251. You
can find the recommended tire pressures for
your vehicle on the label on driver 's side B-pil­
lar ¢
page 235 .
Tire tread circumference and vibration charac­
teristics can change and cause a tire pressure
warning if:
- the tire pressure in one or more tires is too
low,
- the tire has structural damage,
- the tire pressure was changed, wheels rotat -
ed or replaced but the TPMS was not reset
¢page 251.
Warning symbols
'9] Loss of pressu re in at least one tir e ¢ & .
Check the tire or tires and replace or repa ir if
necessary. The indicator light
'9] in the instru­
ment cluster also illuminates
¢page 11.
Check/correct the pressures of all four tires
and reset TPMS via MMI.
••MIS, ( Ti re Pressure Monitoring System) Tire
pressure! System malfunction .
If IIMIS, appears after switching the ignition
on or while driving¢
fig. 182 and the indica­
tor light
'9] in the instrument cluster blinks
f or approximately one minute and then stays
on, there is a system malfunction . See your
authorized Audi dea ler as soon as possible .
A WARNING
--If the tire pressure indicator appears in
the instrument cluster display, one or more of your tires is significant ly under­
inflated. Reduce you r speed immediately
and avoid any hard steer ing or braking
maneuvers. Stop as soon as possible and
check the tires and their pressures. In­
flate the tire pressure to the proper pres­
sure as indicated on the vehicle's tire
pressure label¢
page 235. Driving on a
significantly under- inflated tire causes
the tire to overheat and can lead to tire
failure. Under-inflation also is likely to

impair the vehicle's handling and stop­
ping ability.
- The driver is responsible for maintaining
the correct tire pressures. You must
check the t ire pressures regularly.
- Under certain conditions (such as a spor­
ty driving style, w inter condit ions or un­
paved roads), the pressure monitor ind i­
cator may be de layed.
- Ask your authorized Audi dealer if run­
flat tires may be used on your veh icle.
Your vehicle registrat ion becomes invalid
if you use these tires when not permit­
ted. Damage to your veh icle or acc idents
cou ld also resu lt.
(0 Tips
- The t ire pressure monitoring system
stops working when there is an ESP/ABS malfunction.
- Using snow chains may result in a system malfunction .
- To ensure a proper TPMS function use
AUDI Origina l Tires wh ich are marked
with "AO" or "RO" on the tire sidewall.
¢page 242.
- The t ire pressure monitoring sys tem on
you r A udi was syntoni zed using tires w ith
the "AO" or "RO" identific ation. We rec­
omme nd using these tires.
Reset tire pressure monitoring system
Applies to vehicles: with tire pressure monito ring system
If the tire pressure is adjusted, wheels are ro­
tated or changed, the T PMS must be reset via
MMI .
"' Switc h on the igni tion.
"' Se lect in the M MI: !CAR !func tion button>
Car system s contro l button > Servi cing &
checks > Ti re pre ssure mon itoring > Store
tire press ures> Ye s, store now .
@ Tips
Before reset ting the TPMS, the current
pressures of all four tires must correspond
to the specified values. Adjust the t ire
Tire s an d wheel s 251
pressure and reset the pressure in the ti re
pressure monitoring system according to
the load you are car ry ing
c::!;> page 235 .
-Do not store the tire p ressu res if you are
driving with snow chains . Othe rwise, a
system malfunction may occur.
•
•

252 What do I do n ow ?
What do I do now?
Emergency warning
triangle
App lies to vehicles: with emerge ncy warning triangle
The warning triangle is located on the inside
of the trunk lid .
-
"' M ~ 0 6
~ ~
Fig. 183 Trunk lid: Warning triang le
.,. To open the cover, turn the locking mecha ­
nism and pull the cover downward .
" m
.,. Remove the warning triangle from its hold­
er.
The rear lid is only designed to hold the warn ­
ing triangle offered by the original accessories
program. If you would like to retrofit your ve­
hicle with a warning triangle, p lease contact
your authorized Audi dealer.
Vehicle tool kit
Vehicle tool kit and jack
The vehicle tool kit is located in the luggage
compartment under the cargo floor cover.
Fig . 184 Luggage compartment: cargo floor cover
folded upward/spa re t ire
Fig. 185 Trunk lid: Veh icle tool kit
.,. Fold the floor to the seatback with the help
of the handle .
.,. Tu rn the handwheel counter-clockwise
~ fig. 184 and remove the spare t ire to
reach the vehicle tool kit.
The onboard tool k it includes:
- Hooks to remove the wheel covers*
- Plastic hook to remove wheel bolt covers*
- Wheel bolt wrench
-Alignment pin for changing wheels
- Screwdriver with reversib le b lade
- Towing loop
-Jack
Before storing the jack, make sure it is wound
back down as far as it will go.
A WARNING
Improper use of the vehicle jack can cause
serious pe rsonal injuries.
- Never use the screw driver hex head to
tighten wheel bolts, since the bolts can­
not attain the necessary tighten ing tor­
que if you use the hex head, potentially
causing an acc ident.
- The factory-supplied jack is intended on­
ly for your vehicle model. Under no c ir­
cumstances sho uld it be used to
lift
heavy veh icles or other loads; you risk in­
juring yo urself.
- Never start the engine when the vehicle
is raised, which could cause an accident.
- Support the vehicle securely with appro­ priate stands if work is to be performed
underneath the vehicle; otherwise, there
is a potentia l risk for injury. .,.

-Never use the jack s upplied with your Au­
di on another vehicle, particularly on a
heavier one. The jack is only suitable for
use on the vehicle it came w ith.
(D Tips
- Some of the on board items listed above
are provided on certain mode ls only or
are optional extras.
- Before you can raise your vehicle using
the jack, you must activate the jack ing
mode
¢ page 256.
Space-saving spare tire (compact spare
tire)
The spare tire/wheel is located in the luggage
compartment under the cargo floor cover . It
is intended for short-term use only.
Taking out the sp are tire
... Fo ld the floor to the seatback with the help
of the handle.
... Turn the large sc rew
¢ page 2 52, fig. 184
counter-clockw ise .
.,. Take out the spare tire .
Securing the replaced tire
.,. The fault wheel will not fit ins ide the spare
wheel well. Store it in the luggage compart­
ment and secure it so that it does not slide
¢ page 59 .
Using the spa re tire (compact spare tire )
The compact spare tire is only intended for
emergencies until you can reach a repair shop.
Replace it as quickly as poss ible with a stand­
ard wheel and t ire .
There are some restrictions on the use of the
compact spare t ire. The compact spare t ire
has been des igned specifically for your type of
vehicle.
It must not be swapped with a com­
pact spare t ire from another type of veh icle .
Snow chain s
For technical reasons, the use of snow chains
on the compact spare tire is
not perm itted .
What do I do now? 253
If you do have to drive with snow chains and a
front tire fails, mount the spare wheel with
tire instead of a rear tire. Install the snow
chains on the rear tire and use it to rep lace
the defect ive front tire.
A WARNING
- Never use the spare t ire if it is damaged
or if it is worn down to the tread wear in­
dicators .
- If the spare tire is more than 6 years old,
use it only in an emergency and with ex­
treme caution and careful driv ing.
- The spare tire is intended only for tem­
porary and short-term use.
It should be
replaced as soon as poss ible wi th the
normal whee l and tire.
- After mounting the compact spare t ire,
the t ire pressure must be checked as
soon as possible. T he tire pressure of the
compact spare tire must be 4 .2 bar; oth­
erwise, you risk having an accident.
- Do not dr ive faste r than 50 mph (80 km/
h). You ris k having an accident.
- Avoid full-thrott le accelera tion, heavy
braking, and fast cornering . You risk hav ­
ing an accident.
- Never drive using more than one spare
wheel and tire . You risk having an acci ­
dent .
- Normal summer or winter t ires must not
be mounted on the compact spare wheel
rim.
- For technical reasons, the use of tire chains on the spare tire is not permitted.
If it is necessary to drive with t ire chains,
the spare wheel must be mounted on the
front axle in the event of a flat in a rear
tire. The newly available front wheel must then be installed in place of the
rea r whee l w ith the flat tire . Installing
the t ire cha in before mounting the whee l
and tire is re commended.
- Loose items in the passenger compart­
men t can cause se rious personal injury
during hard brak ing or in an accident. •
•