inflation pressure AUDI S6 2008 User Guide

Tires and wheels -_______________ _____.
New tires and replacing tires and wheels
New tires and wheels have to be broken in.
Fig. 244 Tire specification codes on the sidewall of a tire
No.
G)
@
©
©
©
©
Description
Passenger car tire (where appl icable)
Nominal width of tire in millimeters
Ratio of height to width (aspect ratio)
Radial
Rim diameter code
Load index and speed rating
0
©
U.S. DOT tire identificat ion number
Sever snow conditions
Tire ply composition and materials used
Maximum load rating
@ Treadwear, traction and temperature grades
@ Maximum permissible inflation pressure
The tires and rims are essential parts of the vehicle's design. The
tires and rims approved by Audi are specially matched to the char­ acteristics of the vehicle and can make a major contribution to good
road holding and safe handling when in good condition and prop­
erly inflated =>& .
We recommend that all work on tires and wheels be performed by
an authorized Audi dealer. They are familiar with recommended
procedures and have the necessary special tools and spare parts as
well as the proper facilities for disposing of the old tires.
Authorized Audi dealers have the necessary information about tech ­
nical requirements for installing or changing tires and rims.
Replacing tires and wheels
Tires should be replaced at least in pairs and not individually (for
example both front tires or both rear tires together).
Be sure to read and heed the information to the tire pressure moni ­
toring system =>
page 327.
Always buy replacement radial tires that have the same specifica ­
tions as the tires approved for your vehicle by Audi. Replacement
tires must always have the same load rating specification as the original equipment or approved optional tires listed in the table
=> page 317.
Audi -approved specification tires are specially matched to your
vehicle and its load limits, and can contribute to the important road-.,_
Vehic le care I I irechnical data

________________________________________________ T_ i _r_e _s_ a_n_ d_ w_ h_ e_e _ l_s __ ,n
•
ture . For example, the numbers 2207 mean that the tire was
produced in the 22th week of 2007. The other numbers are
marketing codes that may or may not be used by the tire manufac­
turer. This information is used to contact consumers if a tire defect
requires a recall.
Tire ply composition and materials used
The number of plies indicates the number of layers of rubber-coated
fabric in the tire. In general, the greater the number of plies, the
more weight a tire can support . Tire manufacturers also must indi­
cate the materials in the tire, which include steel, nylon, polyester,
and others .
Maximum Load Rating
This number indicates the maximum load in kilograms and pounds
that can be carried by the tire.
Tire quality grading for treadwear, traction, and
temperature resistance
Tread wear, traction and temperature grades~ page 328.
Maximum Permissible Inflation Pressure
This number is the greatest amount of air pressure that should ever
be put in the tire under normal driving conditions.
Replacing tires or rims on vehicles equipped with tire
pressure monitoring system
The wheels on your vehicle are equipped with a sensor which
constantly monitors the air pressure inside the tire, and then trans­
mits this information to the tire pressure monitoring system. If you
are going to replace the wheel rims on your vehicle, make sure the
new rims also have these sensors . The sensors must be compatible
with the tire pressure monitoring system on your vehicle.
If you install rims, which do not have the sensors, or have sensors
which are not compatible, then the tire pressure monitoring system
will not work properly. In this case, the tire pressure monitoring system would not be able to monitor the
tire pressure or warn you
if it is necessary.
• The battery inside of the tire pressure sensor has a limited
service life.
• Always drive with the valve stem caps securely mounted. We
recommend using factory installed valve stem caps. Ask your autho­
rized Audi dealer to replace lost valve stem caps .
The installation of replacement tires with steel cord body plies in
the tire sidewall may cause malfunction of the tire pressure moni­
toring system, and is not recommended (cord material information
in molded on the tire sidewall).
Always check your tire pressure monitoring system indicator after replacing one or more tires on your vehicle. If the tire pressure
monitoring system indicator flashes, or is on, your system is not
working properly. Your replacement tire might be incompatible with
your tire pressure monitoring system, or some component of the
tire pressure monitoring system may be damaged.
& WARNING
• Using incorrect or unmatched tires and/ or wheels or improper
tire and wheel combinations can lead to loss of control, collision
and serious personal injury.
• Always use tires, rims and wheel bolts that meet the specifica­
tions of original factory-installed tires or other combinations that
have been specifically approved by the vehicle manufacturer.
• Tires age even if they are not being used and can fail suddenly,
especially at high speeds. Tires that are more than 6 years old can
only be used in an emergency and then with special care and at
lower speeds.
• Never mount used tires on your vehicle if you are not sure of
their "previous history." Old used tires may have been damaged
even though the damage cannot be seen that can lead to sudden
tire failure and loss of vehicle control.
~
Vehicle care I t •

-Tires and wheels
PW-------------------
possible with a torque wrench -preferably by an authorized Audi
dealer or qualified workshop. •
Low aspect ratio tires
Your Audi is factory-equipped with low aspect ratio tires . These tires
have been thoroughly tested and been selected specifically for your
model for their superb performance, road feel and hand ling under
a variety of driving conditions . Ask your authorized Audi dealer for
more details.
The low aspect ratio of these tires is indicated by a numeral of
55 or
less
in the tire's size designation. The numeral represents the ratio
of the tire's sidewa ll height in relat ion to its tread width expressed
in percentage. Conventional tires have a height/width ratio of 60 or
more.
The performan ce of low -aspect-ratio tires is particularly sensitive to
improper inflation pressure. It is therefore important that low
aspect ratio tires are inflated to the specified pressure and that the
inflation pressure is regularly checked and maintained. T ire pres­
s ures should be checked at least once a month and always before a
long trip => page 379,
"Checking tire pressure".
What you can do to avoid tire and rim damage
Low aspect ratio tires can be damaged more easily by impact with
potho les, curbs, gullies or ridges on the road, particularly if the tire
is underinflated.
In order to minimize the occurrence of impact damage to the tires
of your vehicle, we recommend that you observe the following precautions:
• Always ma inta in recommended inflation pressures. Check your
tire pressure every 2,000 miles (3,000 km) and add air if necessary.
• Drive carefully on roads with potholes, deep gu llies 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 Audi dealer. Replace a
damaged tire as soon as possible.
• Inspect your tires every 2,000 miles (3,000 km) for damage and
wear. Damage is not always easy to see. Damage can lead to loss of
air and underinflation, which could eventually cause tire failure. If
you believe that a tire may have been damaged, replace the tire as
soon as possib le.
• T hese tires may wear more quickly than others .
• Please also remember that, whi le these tires deliver respons ive
handling, they may ride less comfortably and make more noise than
other choices .
Reduced performance in winter /cold season
conditions
A ll tires are designed for certain purposes. The low aspect ratio,
u ltr a high performance tires originally installed on your vehic le are
intended for maximum dry and wet road performance and handling.
They are not suitable for cold, snowy or icy weather conditions. If
you drive under those circumstances, you should equip your vehic le
with all -season or winter tires , wh ich offer better traction under
those conditions. We suggest you use the recommended snow or all -season tires specified for your vehicle, or their equivalent .
Refer to=>
page 329for more detailed information regarding winter
tires. •

11111.___W_ h_ a_ t_ d_o_ l_ d_ o _ n_ o_w _ ? ____________________________________________ _
- Disengage and lower the floor panel before you close the
luggage compartment lid again.
Storing the replaced wheel
- Place the replaced wheel inside the spare wheel well in
the luggage compartment .
Tighten the knurled retaining screw clockwise to secure the wheel in place.
- Disengage and lower the floor panel before you close the
luggage compartment lid again.
& WARNING
Loose items in the passenger compartment can cause serious
personal injury during hard braking or in an accident .
• Never store the spare wheel or jack and tools in the passenger
compartment.
• Always store all jacking equipment, tools, and the spare wheel
in the luggage compartment.
• Tighten the knurled retaining screw for the spare wheel
securely.
[ i] Tips
Check the inflation pressure of the spare tire periodically to keep the
tire ready for use. •
Changing a wheel
Before changing a wheel
Observe the following precautions for your own and your
passenger's safety when changing a wheel.
- After you experience a tire failure, pull the car well away
from moving traffic and try to reach level ground before
you stop :::;. & .
- All passengers should leave the car and move to a safe
location (for instance, behind the guardrail) :::;,& .
- Engage the parking brake to prevent your vehicle from
rol ling unintentionally :::;.& .
- Move selector lever to position P :::;. & .
-If you are towing a trailer: unhitch the trailer from your
vehicle.
- Take the jack and the spare tire out of the luggage
compartment:::;.
page 336.
& WARNING
You or your passengers could be injured while changing a wheel if
you do not follow these safety precautions:
• If you have a flat tire, move a safe distance off the road. Turn off
the engine, turn the emergency flashers on and use other warning
devices to alert other motorists.
• Make sure that passengers wait
in a safe place away from the
vehicle and well away from the road and traffic.
• To help prevent the vehicle from moving suddenly and possibly
slipping off the jack, always fully set the parking brake and block
the wheel diagonally opposite the wheel being changed. When one ...

Alphab eti ca l ind ex -
--------------------------'-----
Plastic parts
Safety belts 286
289
Trim strips .... ... ....... ..... .. . 281
trim strips .... ........... ........ 282
Cleaning and protection .. .... ... ..... 278
Climate control ... .... .... .... .... .. 110
Synchronizing .. .... .... .... ..... 112
Warm and cold ........ .... .... ... 110
Climate controls Air distribution ........... .... .... 116
Air outlets ..... .. .... .... ...... .. 118
Air outlets (rear) ...... ....... .... . 118
Air recirculation .... .... .... .... .. 117
AUTO (standard setting) . .... .... .. 113
Basic settings . . . . . . . . . . . . . . . . . . . . 119
Center air vent ...... .... ....... .. 121
Controls ............. .... ....... 112
Defrosting/defogging . .... ... .... . 116
Description ... ..... .. .... ...... .. 110
ECON operation . . . . . . . . . . . . . . . . . . 120
Fan . .......... ...... .... ...... .. 116
Heated seats, front .... ... .... .... 114
Key coded setting ................ 110
Recirculation mode (automatic) ... .. 120
Recommended settings . .... .... .. 110
Residual heat .. ...... .... ...... .. 113
Setting the temperature . .... .... .. 114
SETUP ......... .... ... .. .... 119, 120
Solar blower fan/solar roof .. ...... . 119
Solar operation ... ........... .... 121
Switching on and off .. .... ...... .. 113
Synchronization .. .... ........... . 120
Using climate control economically . 119
Clock ......... ........ .... ... .... ... 14
Controls and equip­
ment Safety first
Closing D
Power sun roof
. . . . . . . . . . . . . . . . . . . . 67
Coat hooks ... .... .... .... .... ... ... 109 Damping
Cold tire inflation pressure ....... .... 317
See Adaptive Air Suspension ...... . 182
Compass mirror .. ... ..... ... .... ... .. 85 Data ..
... .... .... .... ... .... .... ... 363
Consumer Information ......... .. 201, 365 Data recorder ..
...... .... ...... .... . 258
Contacting NH TSA .. .. .. ... ... .... .. 201 Date display
........... ........ ...... 14
Continuously Variable Transmission (CVT) Daytime
running lights ... .... .... .. 70, 71
See multitronic® .. .... .... .... ... 159 def
Convertible chi ld seats What does this mean when it appears in
How do I properly install a convertib le the trip odometer display? .
.... .... 15
child seat in my vehicle? ......... 240 Defective light bu
lb warning .... .... ... 27
Safety instructions ................ 240 Defrosting/defogging the windows .... 116
Convertible locking retractor Defrosting/defogging windows ..... ... 118
Activating .......... .... .... .... . 246
Determin ing correct load limit ........ . 322
Deactivating . .... .... ... ..... ... . 247
Digital clock ..... ..... ...... .... .... . 14
Using to secure a chi ld safety seat . 244,
246
Coolant system ..................... 303 Digital compass
... .. .... .... .... ..... 85
Digita l speedometer ........... ....... 27
Dimensions .... .... .... ........... . 362
Coo ling System
Expansion tank .. .... .... ... .. .... 304
Cornering light .... ... .... .... ... .. .. 73
Cruise control
Changing speed .................. 133
Presetting your speed ............. 133
Switching off .................... 133
Switching on .................... 132
Warning/indicator lights .. .... ...... 22
See also Adaptive Cruise Control . ... 135
Cruising range ......... ...... .... ... . 40
Cupholder . ... .. ...... ....... .... .. 103 Dipstick
Reading the dipstick properly .... .. 301
Distance control system
See Adaptive Cruise Control ........ 135
Doors Power child safety lock . ........ .... 59
Power side door closer ............. 56
Driver information system ...... .... . .. 25
Digita l speedometer . .. .. . ... .... .. 27
Driver information messages . .... ... 30
Open door or rear lid warning .... ... 27
Outside temperature display ...... .. 26
Sound system display .. .... .... .... 26
Vehicle operation Vehicle care Do-it-yourself service Technical data

______________________________________________ A_ l_,_ p _h_ a_ b_e _t_i c_ a _ l _in _ d_e _ x __ lllll
T ank flap
Un locking the fuel fi ller flap by hand 295
Technical modifications .... .... ...... 368
Temperature Climate controls .. .... .... ... .... . 114
Setting for the driver's and front passen- ger's side .. ... ... ..... .... ... .. 114
Tether strap ... .... .... .. ... ........ 254
Securing the upper tether strap 255
The first 1,000 miles (1,500 km) and afterwards .... .. .. .. ... ...... .. 267
Tie-downs . ... .... .... .... ....... .. 201
Tilt sensors . .... .... ...... .... .... .. 62
Tips for the environment Saving fuel . ..... ... .... ... ..... . 102
Using the air conditioner only when necessary .. ..... ... .... ... .... . 119
tiptronic® .. ... ... .. .... .... ....... . 153
Automatic Shift Lock (ASU . ...... .. 155
Driving ............. ....... ..... 153
Dynamic shift program ............ 156
Fail-safe mode ... ... ... .. ...... .. 158
Kick-down ... .... .... .... ... .... . 156
Manual shift program ........ .... . 157
Se lector lever ... .... .... ... .... .. 154
Tire pressure ..... .. .... .... ....... . 319
Tire pressure monitoring system ... .... 43
Changing wheels .... .... ..... .... . 46
L earning process . .... .... ... .... .. 45
Loss of air pr essure ........ ... .. 20, 44
Mal functions ...... ...... .... ..... 46
Sensors . .......... .............. 327
Storing tire pressures .... .... .... .. 45
Controls and equip­
ment Safety first
Tires and wheels ..
...... .... . .... 327 Towing
Valves ..... .. ...... ........ ..... 327 Front eyelet .. .. .. ... ... .. .... .... 354
Tire service life .... . .. .. ...... .... .. 323 Rear eyelet
... .... ... ... ..... ... . 355
Tires .... ..... .. ... ... .. .... .... ... 313 Tow truck procedures
..... ... .... . 354
Replacing .... .... .... ..... .. .... 327 Trailer towing .
.... .... ... .... ..... .. 272
Service life . .... . .. .. .... .... .... 323 Operating instructions .
...... ... .. 273
speed rating letter code .... ... .... 326 Technical r
equirem ents ... .... 272 , 273
Tire manufacturing date .... .... ... 326 Trailer towing tips .
... ... . .. .. .... 274
Tire specifications ... ..... ... ... .. 326 Transmission
Tread depth .... . .. .. ...... .. .... 323
tiptronic® ...... .... .. .. .... ..... 153
Uniform tire quality grading ... ..... 328
Transport Canada . .. ... .... .. ... ... . 365
Winter tires ... .... .... .... .... ... 329
Tread Wear Indicator (TWll ... .... .... . 323
Tires and vehicle load limits ... ...... . 321
Trip computer
Tires and wheels Fuel consumption ... .. .. . ... ...... 40
Checking tire pressure .......... .. 319
Mileage . ..... .... .... ...... .... .. 40
Cold tire inflation pressure .. .... ... 317
Single-trip memory .. .... . .... .. .. . 41
Dimensions ... ... ..... ... .... .... 325
Total-trip memory .... .... .... ... .. 41
Genera l notes ... ...... ..... .... .. 313
Trip odometer .. ... .. .... .... ... .. .. . 15
Glossary of tire and loading termino logy
What does it mean when dEF appears in
314 the trip odometer display? ......... 15
New tires and wheels .. .... .... ... 325
Trunk
Replacing .... .... .... ...... ... .. 325
See Rear lid ... .... .... ... .... .... . 58
Snow chains .. .... ... .... .... .... 330
Tire pressure monitoring system .. .. 327
Tires and vehicle load limits . .. . .... 321
Wheel bolts .. ....... ... .. ... ..... 331 Trunk escape handle
...... .. . .... ... . 336
Turn signals . .... .... .... ...... .... .. 74
Warning/indicator lights ...... .... .. 20
Winter tires .. ... ... .. ... .... .... . 329
Tires/Wheels
u
Low aspect ratio tires . ...... .. .... 332
Undercoating ...... .... ....... .. ... . 284
Tire pressure monitoring system .. 20 , 43
Unfastening safety be lts ...... .... .. . . 209
Tools ... .... .... ... ..... ... .... .... 337
Unidirectiona l tires ... .... ...... .... . 313
Torn or frayed safety be lts ... .. . ..... . 205
Uniform tire quality grading .. .... ... . 328
Touch-up pa int . .... ... .... .... ..... 282
Vehicle operation Vehicle care Do-it-yourself service Technical data

___ A_l.:,. p _h_ a_ b_e _t _ic _ a_l _in _ d_e _x ____________________________________________ _
Unlocking
Power locking switch . . . . . . . . . . . . . . 56
Rear lid/trunk lid .. .... .... .... .... 58
Remote control key . . . . . . . . . . . . . . . . 54
Using the key .. .... ....... ........ 55
V
Valet key function
Activating and deactivating .. ..... .. 51
Vanity mirror ...... .. .......... ...... 76
Vehic le electrical system . . . . . . . . . . . . . . 19
Vehicle Identification Number (VIN) .... 360
Vehicle jack ...... .... .......... 336, 34 1
Vehic le literature ..................... 5
Vehicle-care products . . . . . . . . . . . . . . . 278
w
Warning lights . . . . . . . . . . . . . . . . . . . . . . 17
Warning/indicator lights ... .. .... .... . 13
Adaptive Air Suspension . ........ .. 21
Adaptive Cruise Control ... .... .... 143
Airbag system .................... 20
Anti -lock brake system (ABS) . . . . . . . . 22
Brake system . . . . . . . . . . . . . . . . . . . . . 23
Cruise control . . . . . . . . . . . . . . . . . . . . 22
Electromechanical parking brake .... 23
Electronic power control ........... 19
Electronic stabilization program (ESP) 19
Generator . . . . . . . . . . . . . . . . . . . . . . . . 19
H igh beam . . . . . . . . . . . . . . . . . . . . . . . 22 T
ire pressure monitoring system .. .. 20
Turn signals ... ...... ...... ....... 20
Warranty coverages ...... .... .... ... 365
Washer reservoir .. ..... .. ...... ..... 312
Washing .. ........ ........... .... .. 278
Automatic car wash .............. 279
by hand ........................ 279
General information .............. 278
with a power washer ... .... .... ... 280
Waxing ... ........ ... .... .... .... .. 281
Wear indicato r .... .... ... .... .... ... 323
Weatherstrips ..................... .
Weights ....... .. .... ...... ... .. .. . 283
361
What happens if you wear your safety belt too
loose? .. ... .. .... .... .... ...... 207
What happens to unbelted occupants? . 204
What impairs driving safety? ......... . 193
What should I do after changing a wheel?
320
What should I do after replacing wheels?
320
Wheel bolts Torqu e ...... ....... ..... ..... .. 331
Wheels . ......... ... ... .. .... ...... 313
Cas t alloy ... ... ... .... .... .... .. 283
Checking tire pressure ...... ...... 319
Cold tire inflation pressure ...... .. 317
General notes .. ... .... .... .... .. 313
Glossary of tire and loading terminology.
314
New tir es and wheels . .... ... .. ... 325
Tires and vehicle load limits .. ..... 321
Malfunction Indicator Lamp (MIU . ... 20
Safety belt ..... .. .... .... ...... ..
21 When must a safety belt be
replaced? .. 205 When
must the airbag system be inspected?
223
When should I adjust the tire pressures?
320
When should I check the tire pressures? 320
Where can I find the tire pressures for my
car? ... .. .... .... .... ... .... ... 319
Why safety belts? ...... ...... ... 202, 203
Windows Cleaning .... ...... .... ..... .. ... 282
Convenience close/open feature ... .. 65
Defogging .... ... .... .... .... ... 116
Defrosting . . . . . . . . . . . . . . . . . . . . . . 116
Rapid defrosting/defogging ........ 118
Windshield washer fluid Low level .......... .... ... .... .... 36
Windshield wipers Faulty ............ ... .... .... .... 38
Inte rmittent wiping ......... ....... 78
One -tap wiping .. ...... ...... .... . 78
Rain sensor . ...... .... ... .... .... 78
Service position . ...... .... ........ 80
Washer reservoir ....... ..... .... . 312
Winter operation Battery . . . . . . . . . . . . . . . . . . . . . . . . . 307
Coolant system ............... ... 303
Steering wheel heating ...... .... .. 115
Tir es ...... .... ....... .... ...... 264
Windows ...... .... .... ..... .. ... 282
Winter tires ... .... ....... .... .... .. 329
All -wheel drive ... .. .... .... .... .. 329