2012 AUDI A6 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 201
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 20 2.
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 .,..
•
•

202 Trailer towing
"Full load" on the label located on the driver's
side B-pillar (visible when the door is open).
Inflate trailer tires to trai ler and t ire manufac ­
turers' specif ications.
Lights
Check to make sure both vehicle and trailer
lights are working properly.
Safety chains
Be sure trailer safety chains are properly con­
nected from the trailer to the hitch on the ve­
hicle. Leave enough slack in the chains to per­
mit turning corners. When you install safety
chains, make sure they wi ll not drag on the
road when you are driving.
The chains should cross under the trailer
tongue to prevent it from dropping in case of
separation from the hitch.
Driving instructions
Driving with a trailer always requires extra
care and consideration.
To obtain the best possible handling of vehicle
and trailer, please note the following:
.. Do not tow a loaded trailer when your car it­
self is not loaded.
.,. Be especia lly careful when passing other
ve­
hicles.
.. Observe speed limits .
.. Do not drive at the maximum permissible
speed.
.. Always apply brakes early .
.. Monitor the temperature gauge.
Weight distribution
Towing a loaded trai ler with an empty car re­
sults in a high ly unstable distribution of
weight . If this cannot be avoided, drive at
very
low speeds only to avoid the risk of losing
steering control.
A "balanced" rig is easier to operate and con­
trol. This means that the tow vehicle should
be loaded to the extent poss ible and permissi­
ble, while keeping the trailer as light as possi­
ble under the circumstances . Whenever possi- ble,
transfer some cargo to the luggage com­
partment of the tow vehicle while observing
tong ue load requirements and vehicle loading
considerations.
Speed
T he higher the speed, the more difficult it be­
comes for the driver to control the rig. Do not
drive at the maximum permissible speed . Re­
duce your speed
even more if load, weather or
wind conditions are unfavorable -particularly
when going downhill.
Reduce vehicle speed
immediately if the trail­
er shows the slightest sign of swaying.
Do not
try to stop the swaying by accelerating.
Observe speed limits . In some areas, speeds
for vehicles towing trai lers are lower than for
regular vehicles .
Always apply brakes early. When driving
downhi ll, shift into a lower gear to use the en­
gine braking effect to s low the vehicle. Use of
the brakes alone can cause them to overheat
and fail.
Coolant temperature
The coolant temperature gauge¢ page 11
must be observed carefu lly. The coolant tem­
perature can increase if you drive on long in­
clines in a low gear at high engine speeds. Re­
duce your speed immediately if the LEDs in
the top part of the d isplay turn on .
For more information about indicator lights,
refer to. ¢
page 16 .
A WARNING
Anyone not properly restrained in a mov­
ing vehicle is at a much greater risk in an
accident. Never let anyone ride in your car
who is not properly wearing the restraints
provided by Audi.
Trailer towing tips
Important to know
Your vehicle handles differently when towing
a trai ler because of the additional weight and ..,.

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 pa int 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 m ust not be removed.
If you have installed additional accessor ies 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 204.
(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
t h e 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 205
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 204 .
.,. First soak all dried d irt unt il it is soft, then
r inse it off.
.,. As you clean yo ur 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 o r 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 othe r regions exposed
to road dirt . In this way, you w ill not scratch
the pa int w it h coarse par ticl es 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 hard
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 204.
(D Note
- Never try to remove dirt, mud or dust if the surface 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 sunlight. 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 •
•

206 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 204.
.. 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 . T ires are,
however, one of the most important parts of a
vehicle, particularly considering the compara­
tively small patch of rubber on eac h tire that
assures that a ll- important contact between
you, you r vehicle and the road.
Maintaining the correct tire pressure, mak ing
sure that your vehicle and its tires do not have
to carry mo re weight than they can safely han­
d le, avoiding damage from road hazards and
r eg ularly inspec ting 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.
Avoiding damage If you have to d rive 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 embedde d in the treads.
Storing tires Mark tires when you remove them to indicate
the direction of rotation . T his ensures you to
be ab le to mount them correctly when you re­
i nstall them .
When removed, the whee ls or t ires should be
sto red in a cool, d ry 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 235
New tires
New tir es 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
pa tte rn.
Hidden damage
Damage to tires and r ims is ofte n not readily
visible . If you notice unusual v ib rat io n or the
vehicle p ulls 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 s idewa ll, that po int in the direc­
tion the t ire is designed to rotate. You mus t
f ol low the specified di rection o f 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 263.
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 fo r 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, c ras hes and se riou s personal in­
juries . Have wo rn or damaged t ires re­
placed immediate ly.
- Ti res age even if they are not being used
and can fai l sudden ly, especially at hig h
spee ds. 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.
•
•

236 Tires and wheels
-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 weight (in excess of
those standard items which may be rep laced)
of automatic transmission, power steering, power brakes, 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 he ight to the w idth of
the tire in percent. Numbers of 55 or lower in­
dicate a low sidewall for improved steering re­
sponse and better overall handling on dry
pavement.
Bead
means the part 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 separation
means a breakdown of the bond between
components in the bead.
Cord
means the strands forming the plies in the
tire.
Cold tire inflation pressure
means the tire pressure recommended by the
vehicle manufacturer for a tire of a designated size that has not been driven for more than a
couple of miles (kilometers) at low speeds in
the three hour period before the tire pressure
is measured 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 vehicle w ith
standard equipment including the maximum
capacity of fuel, oil, and coolant, air condi­
tioning and additional weight of optiona l
equipment.
Extra load tire
means a t ire design to operate at h igher loads
and at higher inflation pressures than the cor­
responding standard tire. Extra load tires may
be identified as "XL", "xl", "EXTRA LOAD", or
"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
terfaces .
Gross Vehicle Weight Rating ("GVWR")
means the maximum total loaded weight of
the vehicle.
Groove
means the space between two adjacent tread
ribs .
Load rating (code)
means the maximum load that a tire is rated
to carry for a given inflation pressure. Yo u
may not find this information on all tires be­
cause it is not required by law.
Maximum load rating
means the load rating for a tire at the maxi­
mum permissib le inflation pressure for that
tire.

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 237
Recommended inflation pressure
see~
page 236, 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", "E XTRA 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 247 . 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 251.
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.
•
•

238 Tires and wheels
Tread
means t hat port ion of a tire that comes into
con tact w it h t he road.
Tread separation
means pull ing away of the t read from the ti re
carcass .
Treadwear indicators (TWI)
means the projections within the pr inc ipal
grooves designed to give a v isua l ind ication of
the deg rees of wea r of the tread . See
~ page 245, Tread W ear Indicator (T WI) for
mo re info rmat io n on measu ring ti re wear.
Uniform Tire Quality Grading
is a tire information system developed by the
United States Nat io nal Highway Traffic Safety
Admi nistration (N HTSA) that is designed to
h e lp buye rs make relat ive compa risons among
tires. The UTQG is not a safety rating an d no t a
g ua ran tee t hat a tir e will las t fo r a presc ribed
nu mber of m iles (kilome ters) or perform in a
certain way. It s imply gives tire buye rs addi ­
tional informat ion to com bine with ot her con­
side rat ions, s uch as pr ice, brand loya lty and
dea ler recommendations. Under UTQG, t ires
are g raded by t he tire manufacturers in th ree
areas: treadwear, tract io n, and temperature
res ista nce. Th e UTQG i nfo rmation on the tires ,
mo lded into t he s idewalls.
U.S . DOT Tire Identification Number (TIN)
This is the t ire 's "serial number". It begins
with the lette rs "DOT" and indicates that the t
ir e mee ts a ll fede ra l standards. The nex t two
numbe rs o r letters in dicate the plant where it
was man ufactu red, and the last four numbers
represent the wee k and year of man ufact ure.
For example,
DOT . .. 2211 ...
me ans th at the tire w as produ ced in t he 22nd
wee k of 2011. T he othe r num bers are m arket­
ing co des that may or may not be used by the
t ir e manufacturer . This information is used to
contact consume rs if a tire defect requires a
recall.
Vehicle capacity weight
means the ra ted ca rgo an d luggage lo ad plus
150 lbs. ( 68 kilog rams) times the vehicle's to ­
ta l seating ca pacity as listed on the la bel lo ­
cated on the driver's side B-pilla r.
Vehicle maximum load on the tire
me ans tha t load on an individu al tire tha t is
de termined by dis tributi ng to eac h axl e its
share of the maxim um loa ded vehicle weight
and dividing by two .
Vehicle normal load on the tire
means th at l oad o n an individua l tire tha t is
de termined by dis trib uti ng to eac h axle its
share o f the cur b weight , accessory weight,
and normal occ upant weig ht (distr ibuted in
accordance with tab le be low ~
page 238)
and dividing by two.
Occupant loading and distribution for veh icle normal lo ad fo r variou s designated seating
capacities
Designated seating capacity,
number of occupants
5
Vehicle normal load, number Occupant distribution in a nor-
of occupants _____ malty loaded vehicle
3 2 in front , 1 in back s eat