2012 AUDI A7 tires

Trailer towing Driving with a trailer
General information
Your Audi was designed primarily for passen­
ger transportation .
If you plan to tow a tra iler, p lease remember
that the addit ional load will affect durab ility,
economy and performance .
T railer towing not on ly places more stress on
the vehicle, it also calls for more concentra­
tion from the driver.
F or this reason, a lways fo llow the operating
and driving instructions provided and use
common sense.
Technical requirements
Traile r hitch
Use a weight-carrying hitch conforming to the
gross trailer we ight. The hitch must be suita­
b le for your veh icle and trailer and must be
mounted secure ly on t he veh icle's chassis at a
technically sound location . Use only a t railer
h itch w ith a removab le ball moun t. A lways
check with the tr ailer hitch man ufac tur er to
make sure that you are using the correct
hitch.
Do not use a bumper hitch.
T he hitc h must be installed in such a way that
it does not inte rfe re with the impac t-absorb­
i ng b umper syst em. No modifica tions should
be made to the vehicle exhaus t and b rake sys­
tems . From t ime to time, check that a ll hitch
mo unt ing bolt s remain securely fas tened.
W hen you are not tow ing a trailer, remove the
trai le r hi tch ball moun t. T h is prevents the
hi tch from causing damage sho uld your ve hi­
cle be str uck from be hind
¢ &. .
Trailer brakes
If yo ur tra iler is equ ipped w it h a braking sys­
tem, check to be su re that it conforms to a ll
r eg ulat io ns.
Trailer towin g 197
The trailer hyd ra ulic bra ke system must not be
direct ly connected to the vehicle's hydraulic
brake system .
Safety chains
Alw ays use saf ety chains between your ve hicle
and t he tra ile r.
Trailer lights
Tra iler lights must meet all reg ulations . Be
su re to check with your Audi dea ler fo r cor re ct
wir ing, swi tches and relays.
Mirrors
If you a re unable to see the traffic behind you
u sing the regula r outside m irrors, then you
must i nsta ll ext ended mir rors . It is important
t h at you
always have clea r vis ion to the rear .
.8, WARNING
-
Afte r removing the trailer hit ch, do no t
s tore i t in yo ur vehicle . In case of sudden
b raking, the h itch cou ld fly forwar d an d in­
ju re you or yo ur passengers .
Operating instructions
Maximum trailer weight
A tra ile r fo r you r vehicle is limited to a ty pical
cl ass 1 or class 2 tra ile r.
Trailer load distribution
B e sure the loa d in the tr aile r is held secure ly
i n place to p reven t it from shift ing forw ard,
ba ckward or sideways.
Never allow a passenger to ride in a trailer
¢&. in Driving instru ctions on page 198.
Engine cooling system
Towing a trailer makes the engine work hard­
er . It is impo rtant that the cooling system's
perfo rmance is up to the additional load .
Make sure that the coo ling syst em has enough
f lui d.
Tire pressure
When towing a trailer , inflate the tires of your
vehicle to t he cold tire pressure listed under .,..
•
•

Automatic car wash
The vehicle can be washed in almost any
modern automatic car wash .
The vehicle paint is so durable that the vehicle
can normally be washed without problems in
an automatic car wash. However, the effect on
the paint depends to a large extent on the de­
sig n of the fac ility, the filte ring of the wash
water, the type of wash and care mater ial , etc.
If the paint has a dull appearance afte r go ing
through the car wash or is scratched, bring
this to the attention of the operator immedi­
ately. If necessary, use a different car wash.
Before going through a ca r wash, be s ure to
take the usual precautions such as closing the
windows and power roof. Factory installed an­
tennas must not be removed.
If you have installed additional accessories on
the vehicle -such as spoilers, roof rack, etc. -
it is best to ask the car was h operator if these
should be removed .
A WARNING
Always read and heed a ll WARNINGS and
other information
¢ page 200.
(D Note
- Fo ld the exterior mirro rs -flat there is a
r isk of damaging the exterio r mirrors .
Power folding exterior mirrors must not
be fo lded in or out by hand. Use the pow­
er function!
- Compare the track of your vehicle w ith
the d istance between the guide ra ils of
the facility- there is a risk of damage to
the wheels and tires .
- Compare the width of your vehicle wit h
the width of the tu nnel at the fac ility .
Cleaning and protec tion 20 1
Washing the vehicle by hand
A lot of water is needed when washing a vehi­
cle by hand .
.,. Before you start washing, make sure you
have read and u nderstood the WARNINGS
¢ .&. in General information on page 200 .
.,. First soak all dried d irt unt il it is soft, then
r inse it off.
.,. As you clean your vehicle , start w it h the
roof and wor k your way down to the bottom,
using a sponge, a sponge g love or a clean
brush.
.,. Rinse the sponge or the sponge g love often,
flushing it clean each time.
.,. Use specia l car shampoo only for
very per­
sistent d irt .
.,. Rinse the car thoroughly with water .
.,. Use a chamo is leather to gent ly w ipe the ex-
ter ior d ry.
Use a separate sponge for cleaning the
whee ls, door sills and other regions exposed
to road dirt . In this way, you w ill not scratch
the pa int w it h coarse par ticles imbedded in
the sponge the next time you wash the ca r.
& WARNING ~ -
- Do not clean the underside of the chas­
sis, fenders, wheel covers , or other ha rd
to reach parts witho ut protecting yo ur
hands and arms . You may cut yourself on
sharp-edged metal parts.
- Always read and heed a ll WARNINGS and
other information
¢ page 200.
(D Note
- Never try to remove dirt, mud or dust if
the su rface of the ve hicle is dry . Never
use a dry cloth or sponge, s ince this
cou ld scratch your vehicle's paint or win ­
dows.
- Never wash your car in bright s unlight.
Drops of water act as magn ifying lenses
and may damage your paint .
- When you wash your car in the winter: if you rinse your vehicle with a hose, be careful not to aim the stream of water •
•

202 Cleaning and protec tio n
directly at locks, or at door or hatch
openings -they can freeze shut.
- Never use sponges designed to remove insects, or any kitchen scouring sponges
or similar products . They can damage
your paint finish.
- Never use a dry cloth or sponge to clean
the headlights . Only use wet cloths or
sponges to prevent scratches. It is best
to use soapy water.
- You should remove debris (such as in­
sects) from the headl ight lenses on a
regular basis, for example when refuel­
i ng your vehicle. Never clean the head­
li ghts w ith a dry cloth or sponge. Use a
wet cloth or sponge.
It is best to use
soapy wa ter.
@ For the sake of the environment
In the interest of the envi ronment, the ve­
hicle sho uld only be washed i n special
was h bays.
Washing your vehicle with a power
washer
Cleaning the exterior of your car with a high­
pressure power washer is safe as long as you
observe a few simple rules.
.. Befo re using the power washer , make sure
yo u have read and understood the WARN­
INGS¢
A in General information on
page 200.
.. Always fo llow the operating instructions for
the power washer .
.. Make sure that the jet o n the spray hose
produces a "fan shaped spray" .
.. Do
not hold the spray nozzle too close to
soft materia ls .
When cleaning the veh icle with a power wash­
er
always follow the operating instructions .
This applies particularly to the
op erating
pr essure
a nd the s pray ing di stance . Keep a
d ista nce from soft materials such as rubber
hoses o r insulat ing ma ter ial as well as sensors
and camera lenses . Do not use a jet which sprays water in a
d
ir ect
stream
or one t hat has a rotating jet .
Water temper ature sho uld not ex ceed 140 °F
(60 °().
A WARNING ~ -
Neve r wash tires with a jet that sprays wa­
ter i n a direct stream. This could cause in ­
vis ib le damage to the t ires and weaken
them, even if the spray is from a re lative ly
l ong distance and for a short time. Dam­
aged and weakened tires can fail and cause
accidents and personal inj ury.
'
([) Note
To avoid damaging your vehicle, a lways
make sure that there is suffic ient d istance
between the spray head and soft materia ls
like rubber hoses, plast ic pa rts and sound­
deaden ing mater ials as w ell as sensors
and camera lenses. Neve r aim t he sp ray
head at the same point for a long time.
This also applies to cleaning headligh ts
and painted bumpers. Remembe r: the
closer the nozzle is to the surface of the
materia l, the greater the stress on the ma ­
terial.
Sensors and camera lenses
- Remove snow with a hand br ush and remove
ice with a de- ic ing spray that does not con­
tain so lvents .
- Clea n the sensors (adaptive cruise control*,
pa rk ing system*) w ith a cleaning so lution
that does not contain so lvents and a soft
cloth .
- The camera lens or the area in front of the
came ra le ns is no rmally cleaned by the
w indshie ld w ipers o r he adlig ht wipers (night
vision system *).
If the lens or the area is ex­
ceptionally di rty, clean the area wit h glass
cleaner and a soft, dry cloth .
(D Note
-If you was h your veh icle with a pres sure
washer,

Tires and wheels
Tires
General notes
Tires may be the least appreciated and most
abused parts of a motor vehicle .
Tires may be the least appreciated and most
abused parts of a motor vehicle . Tires are,
however, one of the most important parts of a
vehicle, particularly considering the compara­
tively small patch of rubber on each tire that
assures that a ll- important contact between
you, your vehicle and the road.
Maintaining the correct tire pressure, mak ing
sure that your vehicle and its tires do not have
to carry more weight than they can safely han­
d le, avoiding damage from road hazards and
r eg ularly inspect ing t ires for damage i nclud­
ing cuts, slashes irregu la r wear and ove rall
condition are the most important things that
you can do to he lp avoid sudden tire failure in­
cluding tread separat ion and blowouts.
A vo idin g damage
If you have to drive over a curb or similar ob­
stacle, drive very slow ly and as close as possi ­
b le at a right angle to the curb.
A lways keep chemicals includ ing grease, o il ,
gasoline and brake fluid off the t ires .
I nspect the t ires regularly for damage (cuts,
cracks or b listers, etc.). Remove any fo reign
bod ies embedded in the treads.
Storing tires Mark tires when you remove them to indicate
the direction of rotation . Th is ensures you to
be ab le to mount them correctly when you re­
i nstall them .
When removed, the wheels or t ires should be
sto red in a cool, dry and preferably dark place .
Store tires in a vertical pos ition if they are not
mounted on rims, in a horizontal pos it ion if
they are mounted on rims .
Tires an d wheel s 231
New tires
New ti res have to be broken in¢& .
The tread depth of new t ires may vary, accord­
ing to the type a nd make of t ire and the tread
patte rn.
H idden damage
Damage to tires and r ims is often not readily
visible . If you notice unusual v ib rat ion or the
vehicle pulls to one s ide, th is may ind icate
that one of the t ires has been damaged . T he
ti res m ust be chec ked immed iate ly by an au­
thorized Audi dea le r or q ua lified wor kshop .
Unidirectional tires
A un idirectional tire can be identified by ar­
rows on the sidewa ll, that po int in the direc­
tion the t ire is designed to rotate. You must
f ol low the specified di rection of rotation . T his
is necessary so that these tires can develop
their optimum characteristics regarding grip, road noise, wear and hydrop laning resistance.
For more information ¢
page 258.
A WARNING
New tires or t ires that are o ld, worn or
damaged cannot provide maximum con­
trol and braking ability .
-
-New tires tend to be slippery and must
be broken in. To reduce the r isk of losing
control, a co llision and ser ious personal
in ju ries, d rive with special ca re for the
fi rst 350 m iles (560 km).
- Driving with worn or damaged tires can
lead to loss of control, sudden tire fail­
ure, including a blowout and sudden de­
fl ation, cras hes and se riou s personal in­
juries . Have worn or damaged t ires re­
placed immediate ly.
- Tires age even if they are not being used
and can fai l sudden ly, especially at hig h
speeds. Tires that are more than 6 years
old can only be used in an emergency
and then w ith special care and at low
speed.
•
•

232 Tire s and wheel s
-Never mount used tires on yo ur vehicle if
you are not sure of their "previous histo­
ry." Old used tires may have been dam­
aged even though the damage cannot be
seen that can lead to sudden tire failure
and loss of vehicle control.
Glossary of tire and loading terminology
Accessory weight
means the comb ined we ight (in excess of
those standard items which may be rep laced)
of automa tic tra nsmission, power steer ing,
power br akes, power windows, power seats,
radio, and heater, to the extent that these
items are availab le as factory -installed equip ­
ment (whether installed or not) .
Aspect ratio
means the ratio of the height to the w idt h of
the tire in percent. Numbers of 55 or lower in ­
dicate a low sidewall fo r improved steer ing re ­
sponse and better overall handling on dry
pavement.
Bead
means t he pa rt of the tire that is made of
steel wires, wrapped o r reinforced by ply cords
and that is shaped to fit the r im.
Bead s eparation
means a b reakdown of the bond between
components in the bead.
Cord
means the strands forming the plies in the
tire.
Cold tire inflatio n pre ssure
means the tire pressure recommended by the
ve hicle manufacturer for a tire of a designated
size that has not been dr iven for more than a
couple of miles (kilometers) at low speeds in
the three hour period before the tire pressure i s measu red or adjusted. -
If you notice unusual vibration or if the
veh icle pulls to one side when driv ing, a l­
ways stop as soon as it is safe to do so and check the wheels and tires for dam­
age.
Curb weight
means the weight of a motor ve hicle w ith
standard equipment including t he maximum
capa city of fuel, o il, and coola nt, a ir cond i­
tion ing and additional weig ht o f option al
equipment .
Extra load tire
means a tire design to operate at h igher loads
and at h igher inflation pressures than the cor­
respondi ng standa rd tire. Extra load tires may
be identified as "X L", "xl", "EXTRA LOA D", o r
"R F" on the sidewall .
Gross Axle Weight Rating ( "GAWR ")
means the load-carrying capacity of a s ingle
axle system, measured at the tire-ground in­
te rfaces .
Gross Vehicle Weight Rating ( "GVWR ")
means the maximum total loaded we ight of
t h e ve hicle.
Groove
means the space between two adjacent tread
ribs .
Load rat ing (code )
means the maximum load that a tire is rated
to carry for a given inflation press ure. Yo u
may not find this information on all tires be­
ca use it is not required by law.
Maximum load rating
me ans the lo ad r ating for a tire a t the m axi­
mum pe rm issib le inflation pressure for that
t ir e.

Maximum loaded vehicle weight
means the sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight, and
(d) Production options weight
Maximum (permissible) inflation pressure
means the maximum cold inflation pressure
to which a tire may be inflated. Also called
"maximum inflation pressu re."
Normal occupant weight
means 150 lbs . (68 k ilograms) times the
number of occupants seated in the vehicle up
to the total seating capacity of your vehicle .
Occupant distribution
means distribution of occupants in a vehicle .
Outer diameter means the overall diameter of an inflated new
tire.
Overall width
means the linear distance between the exteri­
ors of the sidewalls of an inflated tire, includ­
ing e levations due to labeling, decorations, or
protective bands or ribs.
Ply
means a layer of rubber-coated para llel cords.
Production options weight
means the comb ined weight of those installed
regular production options weighing over 5
lbs . (2 .3 kg) in excess of those standard items
which they replace, not previously considered
in curb weight or accessory weight, including
heavy duty brakes, r ide leve lers, roof rack,
heavy duty battery, and specia l trim .
Radial ply tire
means a pneumatic t ire in which the p ly cords
that extend to the beads are laid at substan­
tially 90 degrees to the centerline of the
tread.
Tires and wheels 233
Recommended inflation pressure
see~
page 232, Cold tire inflation pressure.
Reinforced tire
means a t ire design to operate at higher loads
and at higher inflation pressures than the cor­
responding standard tire. Reinforced tires
may be identified as "XL" , "x l", " EXTRA LOAD",
o r "R F" on the sidewall.
Rim
means a metal support for a tire or a t ire and
tube assembly upon which the tire beads are
seated.
Rim diameter
means nom inal d iameter of the bead seat. If
you change your wheel s ize, you w ill have to
purchase new tires to match the new r im di­
ameter.
Rim size designation
means r im diameter and width.
Rim width
means nom inal distance between rim fla nges.
Sidewall
means that portion of a tire between the
tread and bead.
Speed rating (letter code)
means the speed at which a tire is designed to
be driven for extended periods of time. The
ratings range from 93 mph (150 km/h) to
186 mph (298 km/h)
~ page 243 . You may
not find this information on all tires because
it is not requ ired by law.
The speed rating letter code, where applica­
ble, is molded on the tire sidewall and indi­
cates the max imum pe rm issib le road speeds
~ .&. in Winter tires on page 247 .
Tire pressure monitoring system*
means a system that detects when one or
more of a veh icle's tires are underinflated and
illuminates a low tire pressure warning tell­
tale.
•
•

234 Tires and wheels
Tread
means that portion of a tire that comes into
contact with the road.
Tread separation
means pull ing away of the tread from the tire
carcass .
Treadwear indicators (TWI)
means the projections within the principal
grooves designed to give a visual ind ication of
the degrees of wear of the tread . See
~ page 241, Tread Wear Indicator (TWI) for
more informat ion on measuring tire wear.
Uniform Tire Quality Grading
is a tire information system developed by the
United States Nat ional Highway Traffic Safety
Administration (NH TSA) that is designed to
help buyers make relative comparisons among
tires. The UTQG is not a safety rating and not a
guarantee that a tir e will last fo r a prescribed
number of miles (kilometers) or perform in a
certain way. It simply gives tire buyers addi ­
tional information to combine with other con­
siderat ions, such as price, brand loyalty and
dealer recommendations. Under UTQG, tires
are graded by the tire manufacturers in three
areas: treadwear, tract ion, and temperature
res istance. The UTQG information on the tires,
mo lded into the sidewalls.
U.S. DOT Tire Identification Number (TIN)
This is the tire's "serial number". It begins
with the letters "DOT" and indicates that the ti
re meets a ll federal standards. The next two
numbers or letters indicate the plant where it
was manufactured, and the last four numbers
represent the week and year of manufacture.
For example,
DOT . .. 2211 ...
means that the tire was produced in the 22nd
week of 2011. The other numbers are market­
ing codes that may or may not be used by the
tire manufacturer . This information is used to
contact consumers if a tire defect requires a
recall.
Vehicle capacity weight
means the rated cargo and luggage load plus
150 lbs. (68 kilograms) times the vehicle's to­
ta l seating capacity as listed on the label lo­
cated on the driver's side B-pillar.
Vehicle maximum load on the tire
means that load on an individua l tire that is
determined by distributing to each axle its
share of the maximum loaded vehicle weight
and dividing by two.
Vehicle normal load on the tire
means that load on an individua l tire that is
determined by distributing to eac h axle its
share of the curb weight , accessory weight,
and normal occupant weight (distributed in
accordance with tab le below ~
page 234)
and dividing by two.
Occupant loading and distribution for vehicle normal load for various designated seating
capacities
Designated seating capacity,
number of occupants
4
Vehicle normal load, number Occupant distribution in a nor-
of occupants _____ malty loaded vehicle
2 2 in front

Tires and wheels 235
Cold tire inflation pressure
Tire pressure affects the overall handling, performance and safety of a vehicle .
Fig . 17 6 Tir e pr essur e labe l: located on drive r's s ide B ·
p ill ar
Tire pressu re genera lly refers to the amount
of air in a t ire tha t it needs it to do its job and
safely carry the combined load of the entire
vehicle and its contents . Tire pressure is
measured in kilopasca ls (kPa), the i nterna­
tional measuring unit and in pounds pe r
square inc h (PSI). Tire pressure is based in
p ar t o n the vehicle's desig n an d load limit­
the greatest amount of weight that the vehi­
cle can carry safe ly and the ti re size . The prop ­
er tire pressure is freq uent ly referred to as the
"recommended cold tire inf lation pressure ."
Air in the tires expands when the tire heats up
because of interna l frict io n when it flexes in
use . The ti re p ressu re is higher when the tire
has warmed up than when it is "cold ." It is the
i nflat io n pressure i n a "cold" tire that counts.
Therefo re, you s ho ul d never let air ou t of a
warm tire to matc h "cold tire infla tion p res­
sure" recommendations . The tires wo uld then
be underinf lated a nd could fail suddenly.
M ain taining proper t ire press ure is one of the
most impor tan t thi ngs you c an do to he lp
avoid sudden tire failure. Underinfla ted tires
are a major cause of s udden tire failure . Keep­
ing tires at the r ight pressure is also impor­
tant for safe and responsive vehicle handling,
traction, b rak ing and load carrying .
Tire pres­
sures are part icularly important wh en th e
vehicle is being driven at higher speeds , and
then especially when h eavily loaded even
within the permi ssible load -carrying capaci­
tie s approved for your vehi cle.
~
"' ~
,.------------------- ~
•(=~: I := I ~ I )§ :ll
,.,,. ........................ ...., .... ~----.... _ ... t.._.. .... _..,.. .... ......,... .. ~--......... ·- ..
- KPA. . PSI
- KPA. . PSI
- KPA. . PSI
Fig. 17 7 Tir e pressu re labe l
The recommended tire pressures for your Audi
depe nd on the kind of tires on your ve hicle
and t he number of passe ngers and/or amount
of luggage you w ill be t ransporting .
The tire pressure label is located on the driv­
er's side 8-pillar . The tire pressure labe l lists
the recommended cold t ire inflat io n pressures
for the veh icle at its maximum capac ity
weight and tires that we re o n your veh icle at
t h e time it was manufactu red.
If you wish to improve comfort when op erat­
ing the ve hicle at normal load (up to 3 occu­
pant s), you can adju st tire pres sures to those
spe cified for normal vehi cle load . Before op­
erating the vehicle at maximum load, you
must increase the tire pressure s to those
speci fied for maximum vehicle load
¢ .&.
Bear in mind that the tire pressure mon itor ing
system* can on ly mon itor the tire p ress ures
yo u have sto red. The sys tem does not recog ­
nize the load condi tion of your veh icle.
T he effectiveness of the t ire p ress ure monitor­
ing system * w ill be impa ired i f you s to re no r­
m al load pressures but t hen opera te the veh i­
cle a t its maximum load
¢ .& .
See the ill ustration 9 fig. 176 fo r the lo cat ion
of the label o n driver's s ide B-pillar (color of
the actu al label a nd exact lo cat ion on the ve­
hicle will vary s light ly).
Note t hat the follow ing table is accu rate at
the time of going to press and is s ubject to