AUDI A6 2018 Owners Manual

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differently even if they are the
same
size ¢,&. .
.,,. If you would like to equip your
vehicle with a tire/rim combina­
tion that is different from what
was installed at the factory, con­
sult with an authorized Audi
dealer or authorized Audi Service
Facility before making a pur­
chase¢ ,&..
Because the spare tire* is differ­
ent from the regular tires instal­
led on the vehicle (such as winter
tires or wide tires), only use the spare tire* temporarily in case of
emergency and drive carefully
while it is in use. It should be re­
placed with a regular tire as soon
as possible.
Applies to: vehicles with all wheel drive : all four wheels must be
equipped with tires that are the
same brand and have the same
construction and tread pattern so
that the drive system is not dam­ aged by different wheel speeds.
For this reason, in case of emer­
gency, only use a spare tire* that
is the same circumference as the
regular tires .
Wheels
A WARNING
-Do not use steel rims that are
17 inches or larger. Other­
wise, damage to the vehicle and an accident could result.
-Only use tire/rim combina­
tions and suitable wheel bolts
that have been approved by
Audi. Otherwise, damage to
the vehicle and an accident
could result.
-For technical reasons, it is not
possible to use tires from oth­
er vehicles
-in some cases,
you cannot even use tires from
the same vehicle model.
-Make sure that the tires you
select have enough clearance
to the vehicle. Replacement
tires should not be chosen
simply based on the nominal
size, because tires with a dif­
ferent construction can differ
greatly even if they are the
same size. If there is not
enough clearance, the tires or
the vehicle can be damaged
and this can reduce driving
safety and increase the risk of
an accident.
...
209

Wheels
-Only use tires that are more than six years old when abso­lutely necessary and drive
carefully when doing so.
-Do not use run-flat tires on your vehicle. Using them when not permitted can lead to
ve­
hicle damage or accidents.
-If you install wheel covers on the vehicle, make sure they al­low enough a ir circulation to
cool the brake system. If they
do not, this could increase the risk of an accident.
Tire wear/damage
Fig. 186 Tire profile: trea dwear indica ­
tor
Tire wear
Check the tires regularly for wear.
-Inflation pressure that is too low
or high can increase tire wear
considerably.
l) Obey any applicable regulations in your
country.
210
-Driving qu ickly through curves,
rapid acceleration and heavy
braking increase tire wear.
-Have an authorized Audi dealer or authorized Audi Service Facili­
ty check the wheel alignment if
there is unusual wear.
-Have the wheels rebalanced if an imbalance is causing noticeable
vibration in the steering wheel. If you do not, the tires and other
vehicle components could wear more quick ly.
Treadwear indicator
Original equipment tires contain
treadwear indicators in the tread pattern, which are bars that are 1/16 in (1.6 mm) high and are
spaced evenly around the tire per­ pendicular to the running direc­
tion
c> fig . 186. The letters "TWI"
or triangles on the tire sidewall indicate the location of the tread­
wear indicators.
The t ires have reached the mini­
mum tread depth
l) when they
have worn down to the treadwear
indicators. Replace the tires with
new ones
c> A . "'

Ti re rotation
Rotating the tires regularly is rec­
ommended to ensure the tires
wear evenly. To rotate the t ires,
install the tires from the rear axle
on the front axle and vice versa.
This will allow the tires to have
approximately the same length of
service life.
For unidirectional tires , make
sure the tires are installed accord­ i ng to the running direction indi­
cated on the tire sidewall
¢page 231.
Hidden damage
Damage to tires and rims can of­
ten occur in locations that are hidden. Unusual vibrations in the
vehicle or pulling to one side may indicate that there is tire damage.
Reduce your speed immediately.
Check the tires for damage. If no
damage is visible from the out­
side, dr ive slowly and carefully to
the nearest authorized Audi deal­ er or authorized Audi Service Fa­
cility to have the vehicle inspect­
ed.
A WARNING , ~ -
o Tread that has worn too low or co ...
~ different tread depths on the
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Wheels
tires can reduce driving safety.
This can increase the risk of an accident because it has a nega­
tive effect on handling, driving
through curves, and braking, and because it increases the
risk of hydroplaning when driv­
ing through deep puddles.
Tire pressure
Fig. 187 Driver's side 8-pillar : tire pres ­
sur e label
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(. c ==. ~:t I : I :,. I ) (':~ ) l ~
1111..-... ............................ -.. ..... ..... _ .... "" ................ .. .,_...._,. ..... .............. ... .
-KPA. . PSI
-KPA. . PSI
-KPA. . PSI
Fig. 188 Tire pressur e label
The correct tire pressure for tires
mounted in the factory and for
the spare tire* is indicated on a la­
bel. The label is located on the B-
p illar
¢ fig. 187, ¢ fig. 188. ..,
211

Wheels
Use the tire pressure specified for
a normal vehicle load when the
vehicle is partially
loaded ¢ table
on page 213 .
If driving the vehi­
cle when fully loaded, you must
increase the tire pressure to the
maximum specified
pressure ¢.&. -
Checking/correcting tire
pressure
~check the tire pressure at least
once per month and also check it
before every long drive .
~Always check the tire pressure
when the tires are
cold. Do not
reduce the pressure if it increas­
es when the tires are warm.
~check the label¢ fig . 188 for
the correct tire pressure based
on vehicle load.
~correct the tire pressure if nec­
essary .
~store the new tire pressure in
the Infotainment system
¢ page 220.
~check the pressure in the emer­
gency tire*/spare tire*. Always
maintain the maximum temper­
ature that is specified for the
tire.
212
& WARNING
Always adapt the tire pressure
to your driving style and vehicle
load .
-Overloading can lead to loss of
vehicle control and increase
the risk of an accident. Read and follow the important safe­
ty precautions
in¢ page 214,
Tires and vehicle load limits.
-The tire must flex more if the
tire pressure is too low or if
the vehicle speed or load are
too high . This heats the tire up
too much. This increases the
risk of an accident because it
can cause the tire to burst and
result in loss of vehicle con­
trol.
-Incorrect tire pressure in­ creases tire wear and has a
negative effect on driving and
braking behavior, which in­
creases the risk of an accident.
{tfj) Note
Replace lost valve caps to re­
duce the risk of damage to the
tire valves.
@ For the sake of the environment
Tire pressure that is too low in­
creases fuel consumption.

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Tire pressure table
Please note that the information
contained in the following table
was correct at the time of print­
ing, and the information is sub­
ject to change. If there are differ­
ences between this information
and the tire pressures specified
on the label on the driver's side B­
pillar, always follow the specifica­
tion on the B-pillar label
¢page 211, fig. 187.
Model/ Tire designation
Wheels
Make sure that the tire designa­
tion on your tire matches the des­
ignation on the tire pressure label
and the tire pressure table.
The following table lists recom­ mended tire pressures in cold
tires according to the load and
the size of the tires installed.
Tire pressure
Engine Normal load Maximum load
(up to 3
people)3>
front
PSI kPA
A6:
225/55 Rl 7 97H 3 2 220
2.0L
245/45 Rl8 l00H 33 230
4 cylinders 255/40 Rl9 l00H 33 230
255/40 Rl9 l00Y 32 220
255/35 R20 97Y 35 2
40
A6: 225/55 Rl7 97H 35 240
3.0L
245/45 Rl8 l00H 35 240
6
cylinders 255/40 Rl9 l00H 35 240
255/40 Rl9 l00Y 36 250
255/35 R20 97Y 39 270
56: 255/40 Rl9 l00Y 39 270
4.0L
255/35 R20 97Y 44 300
8 cylinders
a) 2 people in the front, 1 person in the rear
A WARNING
Please note the important safe­
ty precautions regarding tire
rear front rear
PSI kPA PSI kPA PSI kPA
29 200 35 240
38 260
32 220 35 240 38 260
32 220 35 240
38 260
32 220 33 230 36 250
3 2 220
38 2
60 4 1 280
32 220 38 260 41 280
32 220 38 260 41 280
32 220 38 260 41 280
33 230
39 270 42 290
36 250 44 300 46 320
35 240 42 290 44 300
39 270 46 320 48 330
pressure ¢page 211 and load
limits
¢ page 214.
213

Wheels
Tires and vehicle load limits
There are limits to the amount of
load or weight that any vehicle
and any tire can carry. A vehicle
that is overloaded will not handle
well and is more difficult to stop. Overloading can not only lead to loss of vehicle control, but can al­
so damage important parts of the
vehicle and can lead to sudden tire failure, including a blowout
and sudden deflation that can
cause the vehicle to crash.
Your safety and that of your pas­ sengers also depends on making
sure that load limits are not ex­
ceeded. Vehicle load includes ev­
erybody and everything in and on
the vehicle. These load limits are
technically referred to as the vehi­
cle's
Gross Vehicle Weight Rat­
ing
("GVWR").
The "GVWR" includes the weight
of the basic vehicle, all factory in­
stalled accessories, a full tank of
fuel, oil, coolant and other fluids plus maximum load. The maxi­
mum load includes the number of
passengers that the vehicle is in­
tended to carry ("seating capaci­
ty") with an assumed weight of 150 lbs. (68 kg) for each passen-
214
ger at a designated seating posi­
tion and the total weight of any luggage in the vehicle. If you tow
a trailer, the weight of the trailer
hitch and the tongue weight of
the loaded trailer must be includ­
ed as part of the vehicle load.
The
Gross Axle Weight Rating
("GAWR") is the maximum load
that can be applied at each of the
vehicle's two axles.
The fact that there is an upper limit to your vehicle's Gross Vehi­
cle Weight Rating means that the
total weight of whatever is being
carried in the vehicle (including
the weight of a trailer hitch and
the tongue weight of the loaded
trailer) is limited. The more pas­
sengers in the vehicle or passen­
gers who are heavier than the
standard weights assumed mean
that less weight can be carried as
luggage.
The Gross Vehicle Weight Rating
and the Gross Axle Weight Rating
are listed on the safety compli­
ance sticker label located on the
driver's side B-pillar.

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A WARNING
Overloading a vehicle can cause
loss of vehicle control, a crash
or other accident, serious per­
sonal injury, and even death .
- Carrying more weight than
your vehicle was designed to
carry will prevent the vehicle
from handling properly and
increase the risk of the loss of
vehicle control.
- The brakes on a vehicle that has been overloaded may not
be able to stop the vehicle
within a safe distance .
- Tires on a vehicle that has
been overloaded can fail sud­
denly, including a blowout and
sudden deflation, causing loss
of control and a crash .
- Always make su re that the to­
tal load being transported - inc lud ing the weight of a trail­
er hitch and the tongue
weight of a loaded trailer -
does not make the vehicle
heavier than the vehicle's
Gross Vehicle We ight Rating.
Determining correct load
limit
~ Use the example below to calcu-
"' 8 late the total weight of the pas­s ..
Wheels
sengers and luggage or other
things that you plan to transport so that you can make sure that
your vehicle will not be overload­
ed .
Steps for Determining Correct
Load Limit
1 . L ocate the statement "THE
COMB INED WEIGH T OF OCCU­
P ANTS AND CARGO S HOU LD
N EVER EXCEED XXX KG OR XXX
L BS " on your vehicle's placard
(tire inflation pressure label)
<=> page 211, fig. 187.
2. Determine the combined
weight of the driver and pas ­
sengers that will be riding in
your vehicle .
3 . Subtract the combined weight
of the driver and passengers
from
"XXX" kilograms or "XXX"
pounds shown on the sticker
<=> page 211, fig . 187 .
4. The resulting figure equals the
available amount of cargo and
luggage load capacity . For ex ­
ample, if the "XXX" amount
equa ls 1400 lbs. and there will
be five 150 lbs. passengers in
your vehicle, the amount of available cargo and luggage load capacity is 650 lbs.
.,.
2 15

Wheels
(1400-750 (5 X 150) = 650
lbs.)
5 . Determin e the combined
w eig ht of lu ggage and cargo
b e in g load ed on the vehicle .
Th at w eight ma y not safel y ex­
ce ed the avail abl e ca rg o and
lug gag e lo ad capac it y ca lculat­
ed in St ep 4 .
6. If your vehi cle will be to wing a
tr aile r, lo ad fr om your tr ailer
w ill be transferred to your
ve ­
hicle . Con sult thi s manual to
d etermin e how thi s re du ces
th e av ail ab le carg o and lug­
g age load capa cit y o f your v ehi­
cle .
.,. Chec k the tir e s idewall
(c:::> pa ge 202 , fig . 185) to det er­
min e the de sign ated load r ating
for a speci fic tire .
Wheel bolts and rims
Wheel bolts
Wheel bo lts must be clean and loosen/t ighten
eas ily.
Rims
Rims with a bolted rim ring* or w it h bolted whee l
covers* consist of mu ltip le pieces . These compo­
nents we re bolted together using specia l bolts
a nd a special procedure . You must not repair or
d isassemble
them ¢_&. .
_& WARNING
Whee l bol ts th at ar e tightened o r rep air ed in­
c orrectly c an become loose and resul t in loss
216
of vehicle contro l, w hich increases the risk o f
an accident. For the cor rect tig hten ing spec ifi­
cation,
see¢ page 228, After changing a
wheel.
- Always keep the whee l bolts and the
threads in the wheel hub clean and free of
grease .
- Onl y use whee l bolts that fit the rim.
- Always have damaged rims repaired by an
author ized Audi dealer or authorized Audi
Serv ice Facility. Never repa ir or disassemb le
r ims yo urself, because th is increases the risk
of an acc ident.
Winter tires
Winter t ires signif icant ly imp rove the vehicle's
handling when dr iv ing in winter conditions. Be­
c au se of their construct io n (w id th, compou nd,
t read pa ttern), s ummer tires prov ide less t rac ­
tion on ice and snow .
.,. Use winter tires on all four wheels.
.,. Only use winter tires that a re app roved fo r yo ur
veh icle .
.,. Please note that t he maximum permitted
speed may be lower with winter
tir es ¢ A in
G en eral information on pag e 201 .
An a uthor ­
i z ed Aud i dealer or authori zed Aud i Serv ice Fa­
cility can inform you about the maximum per­ m itted speed for your tires .
.,. Check the tire pressure after installing wheels
ca:;, page 211 .
The effectiveness of winter tires is reduced great­
ly when the tread is worn down to a depth of
0 .157 i n (4 mm) . The characte rist ics of winter
t ir es also decrease g reatly as the t ire ages , re­
gard less of t he rema ining t read.
@ For the sake of the environment
Re insta ll summer t ires at the app ropr iate
time, bec ause they prov ide better handli ng
when ro ads are free of snow and ice. Summer
tires cause less roa d noise, tire wear and fue l
consumpt ion .

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(D Tips
You can also use all season tires instead of
winter tires . Please note that in some coun­
tries where winter tires are required, only
winter tires with
the ~ symbol may be per­
mitted.
Snow chains
Snow chains not only improve the driving in win­
ter road conditions, but also the braking .
.. Only install snow chains on the front wheels.
This applies also to vehicles with all wheel
drive* .
.. Check and correct the seating of the snow
chains after dr iv in g a few feet, if necessary . Fol­
low the instructions from the manufacturer .
.. Note the maximum speed of 30 mph (SO km/
h). Note the loca l regulations.
Use of snow chains is only perm itted with certain
rim/tire combinations due to technical reasons.
Check with an authorized Audi dealer or author ­
ized Audi Service
Facility to see if you may use
snow chains.
You must remove the snow chains on roads with­
out snow. Otherwise, you could impair driving
ability and damage the tires.
A WARNING
Using incorrect snow chains or installing snow
chains incorrectly can result in loss of vehicle
control, which increases the risk of an acci­
dent .
{[J) Note
- Snow chains can damage the rims/wheel
covers* if the chains come into direct con­
tact with them . Remove the wheel covers*
first . Use coated snow chains.
- Using snow chains that add more than 0.4
inch (10.5 mm) of height can severely dam­
age the wheel housings and other vehicle
components.
- Do not install and use snow chains if there is
a malfunction in the air suspension*, be­
cause the vehicle height will be very low. If
Wheels
you drive with snow chains anyway, the
wheel housings and other vehicle compo­
nents can be severely damaged.
(D Tips
When using snow chains, it may be useful to
switch on sport
mode¢ page 120.
Low-profile tires
Applies to: vehicles with low-profile tires
Compared to other tire/rim combinations, low­
profile tires offer a wider tread surface and a
larger rim diameter with shorter tire sidewalls.
This results in an agile driving style . However, it
may reduce the level of comfort and increase
road noise when driving on roads in poor condi­
tion.
Low -profile tires can become damaged more
quickly than standard tires when driving over
large bumps, potholes, manhole covers , and
curbs . Therefore, it is particularly important to
maintain the correct tir e pressure
¢ page 211.
To reduce the risk of damage to the tires and
rims, drive very carefully on poor roads.
Check your wheels regularly every 2,000 mi
(3,000 km) for damage . For example, check for
bulges/cracks on the tires or deformations/
cracks on the rims.
After a heavy impact or damage, have the tires
and rims inspected or replaced immediately by
an authorized Audi dealer or authorized Audi
Service Facility.
Low-profile tires can wear out faster than stand­
ard tires .
Uniform tire quality grading
-Tread wear
- Traction AA ABC
- Temperature ABC
Quality grades can be found where applicable on
the tire side wall between tread shoulder and maximum section width
¢ page 202, fig. 185 .
217

Wheels
For example: Tr ead wea r 200, Traction AA, Tem ­
pe rature
A .
All passenge r ca r tires m ust conform to Federa l
Safety Requi rements in addition to these g rades.
Tread wear
The tread wear grade is a comparat ive rat ing
based on the wear rate of the t ire when tested
unde r contro ll ed conditions o n a specified gov ­
e rnmen t test co urse.
For example, a tire graded 150 would wear one
and one ha lf ( 11/2) t imes as well on the gove rn­
ment course as a tire g raded 1 00.
The relative performance of t ires depends upon
the actual condi tions of their use, howeve r, and
may depart s ignificant ly from the norm d ue to
va ria tions in driving hab its, service pra ctices and
d ifferences in road ch aract eris tics and clim ate.
Traction
The traction grades, from highest to lowest, are
AA, A, Band
C. T hose grades represent the t ire's
ab ility to stop on wet pavement as meas ured un­
de r contro lled condi tions o n specified gove rn ­
men t tes t su rfa ces of asp ha lt and conc re te. A tire
mar ked C m ay have poor trac tion pe rforma nce
q _&. ,
Temperature
The temperature grades a re A (t he highest), B,
and C, rep resent ing the tire' s resistan ce to t he
gener ation o f heat and it s abili ty to d iss ipate
heat when tested unde r controlled condi tions on
a specified in door laboratory test whee l.
Susta ined hig h tem perature can cause t he ma te ­
r ial of the t ire to dege nerate and re duce tire life,
an d excess ive temperatu re can lead to sudden
tire fai lure
q .&. .
The gr ade C co rresponds to a leve l of perfor m­
a nce wh ich all passenge r car tir es mus t mee t un ­
der t he Fede ra l Mo tor Vehicle Safety Standar d
No . 109 . Grades Band A represent higher leve ls
of perfo rmance on the labo rato ry test w heel than
the min imum required by law.
218
A WARNING -
The tract io n grade assigned to this t ire is
based on straight-a head braking traction
tes ts, a nd does no t in clude acceleration, cor­
ne ring, hy droplaning or pea k traction cha rac­
teris tics.
A WARNING
The tem perat ure grade fo r thi s tire is estab­
lishe d fo r a t ire th at is p roperl y infl ated and
n ot overloaded . Excessive s peed, under infla ­
tion, o r excessive loa ding, either separate ly or
i n comb inat io n, can cause heat bu ildup and
possib le t ire fai lure.
A WARNING
-
-
Tempe rature grades app ly to t ires that are
proper ly inflated a nd not over or under inflat­
ed .
Tire pressure monitoring
system
ill General notes
Each tire, including the spare (if prov ided),
shou ld be checked monthly when cold and inflat­
ed to the i nflat ion press ure recommended by the
vehicle manufacture r on the veh icle placard or
ti re infla tion p ressure labe l. (If your ve hicle has
t ir es of a diffe rent size t han the si ze ind icated on
t h e ve hicle placard or tire i nflat io n press ure la ­
bel, you sho uld dete rm ine the proper tire in fla­
tion press ure for those tires) .
As a n ad ded safety featu re, you r vehicle has been
equipped wi th a t ire p ress ure mon itor ing system
(TPMS) t hat ill umi nates a low tire p ressure tell ­
ta le w hen one or mo re of your tires is s ignificant ­
l y under -inflated. According ly, w hen the low ti re
pressure telltale illum inates, you sho uld stop and
c h eck your t ires as soon as possible, and inflate
them to the proper pressure. Dr iv ing on a sign ifi­
cant ly under -inflated t ire ca uses the t ire to over ­
heat and ca n lead to tire fa ilu re . U nder-inflation
also red uces fue l eff ic iency a nd tire tread life,
and may affect t he ve hicl e's handling a nd s top-
ping ability.
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