2008 AUDI S6 trailer

IIJ!I Tires and wheels
that the vehicle can carry. For the location of the label~ page 31 7,
fi g. 240 .
& WARNING
Overloading a vehicle can cause loss of vehicle control , a crash or
other accident , serious personal injury, and even death.
• Carrying more weight than your vehicle was designed to carry
will prevent the vehicle from handling properly and increase the
ri sk of the loss of vehicle control.
• The brakes on a veh icle 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 suddenly,
including a blowout and sudden deflation , causing loss of control
and a crash.
• Always make sure that the total load being transported -
including the weight of a trailer hitch and the tongue weight of a
loaded trailer -does not make the vehicle heavier than the
vehicle 's Gross Vehicle Weight Rating. •
Determining correct load limit
Use the example below to calculate the
total weight of the passengers and luggage or other things that you plan to
transport so that you can make sure that
your vehicle will not be overloaded.
Steps for Determining Correct
Load Limit
1. Locate the statement "THE COMBINED
WEIGHT OF OCCUPANTS AND CARGO SHOULD NEVER EXCEED XXX KG OR XXX
LBS"on your vehicle's placard (tire infla­
tion pressure label)=>
page 317 , fig. 240.
2. Determine the combined weight of the driver and passengers that will be riding
in your vehicle.
3 . Subtract the combined weight of the
driver and passengers from
"XXX" kilo ­
grams or
"XXX" pounds shown on the
sticker=>
page 317, fig. 240.
4. The resulting figure equals the available amount of cargo and luggage load capacity. For example, if the
" XXX"
amount equals 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. (1400-750 (5
X 150) = 650 lbs.) t,,,

Tires and wheels -_______________ _____.
5. Determine the combined weight of
luggage and cargo being loaded on th e
vehicle. That weight may not safely exceed the available cargo and luggage load capacity calculated in Step 4.
6. If your vehicle will be towing a trailer, load from your trailer will be transferred
to your vehicle. Consult this manual to determin e how this reduces the avail ­
able cargo and luggage load capacity of
your vehicle.
- Check the tire sidew all (~
page 325,
fig . 244) to determine the designated
load rating for a specific tire . •
Tire service life
The ser vic e life of ti res depends on a lo t o f different things
inclu ding p roper i nstallation and bal ancing, correc t tire
pressu re a nd drivi ng style .
Tread Wear Ind icator (TWll
Fig . 24 2 Tire tread:
tre ad we ar indi cato rs
(TWll
Fig . 2 4 3 Rot ating tire s
for mo re even wear
The or iginal tires on your vehicle have 1 /16 inch ( 1.6 mm) high " wea r
indicators"=> fig. 242 running across the tread. Depending on the
make, the re wil l be six to eight of them even ly p la ced a rou nd the
t ire . Marks on the tire sidewa ll (for example "TWI" or other symbols)
indicate the positions of the tread wear indicators. Worn tire s must
be r eplaced. Di fferen t fi gures may apply in other countries ::::>,& . .,_
Vehic le care I I Technical data

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 ...

___ C_ o_n_ s_ u_m _ e_ r_ ln_ f_ o _r _m _ a_ t_ i_o _n ______________________________________________ _
standards. Therefore, vehicles built for the U.S .A. and Canada differ
from vehicles sold in other countries.
If you plan to take your vehicle outside the continental limits of the
United States or Canada, there is the possibility that
• unleaded fuels for vehicles with catalytic converter may not be
available;
• fuel may have a considerably lower octane rating. Improper fuel
may cause engine damage;
• service may be inadequate due to lack of proper service facilities,
tools or testing equipment;
• replacement parts may not be readily available .
• Navigation systems for vehicles built for the U.S.A. and Canada
will not necessarily work in Europe , and may not work in other coun­
tries outside of North America.
0 Note
Audi cannot be responsible for mechanical damage that could
result from inadequate fuel , service or parts availability .•
Audi Service Repair Manuals and
Literature
Audi Official Factory Service Manuals are published as soon as
possible after model introduction. Service manuals are available
from :
Audi Technical Literature Ordering Center
Call toll -free:
Tel.: 1 (800) 544-8021
(from 8:00 AM to 8:00 PM, EST, Monday through Friday)
or access their website www.audi.ddsltd.com on the Internet to
order repair manuals and other Audi literature. •
Maintenance
General
Your vehicle has been designed to help keep maintenance require­
ments to a minimum. However, a certain amount of regular mainte­
nance is still necessary to assure your vehicle 's safety, economy and
reliability. For detailed vehicle maintenance consult your Mainte­
nance & Warranty booklet .
Under difficult operating conditions, for example at extremely low
outside temperatures, in very dusty regions, when towing a trailer
very frequently, etc., some service work should be performed
between the intervals specified. This applies particularly to:
• oil changes , and
• cleaning or replacing the air filter.
~ For the sake of the environment
By regularly maintaining your vehicle, you help make sure that emis ­
sion standards are maintained, thus minimizing adverse effects on
the environment. •
Important considerations for you and your
vehicle
The increasing use of electronics, sophisticated fuel injection and
emission control systems, and the generally increasing technical
complexity of today's automobiles, have steadily reduced the scope
of maintenance and repairs which can be carried out by vehicle
owners. Also, safety and environmental concerns place very strict
limits on the nature of repairs and adjustments to engine and trans­
mission parts which an owner can perform.
Maintenance, adjustments and repairs usually require special tools,
testing devices and other equipment available to specially trained .,_

-Alphabetical index ..,,,_.:_.__ ____ _...::.:...::..;.:___ ________________ _
A
A . ccessones ............. .... .... .. .
Adapter for cupholder ..... ...... ... . 368
103
Ad . A' S .
apt1ve 1r uspens1on .. .... ... .... 182
Automatic mode . . . . . . . . . . . . . . . . . 183
Description . . . . . . . . . . . . . . . . . . . . . 182
Dynamic mode . . . . . . . . . . . . . . . . . . 183
Jacking mode when changing a flat tire .
184
Lift mode . . . . . . . . . . . . . . . . . . . . . . . 183
Setting the driving modes .. .... ... 183
Standard mode . . . . . . . . . . . . . . . . . . 183
Trailer towing mode ... .... .... ... 184
Warning/indicator lights ....... .... 21
Adaptive Cruise Control . . . . . . . . . . . . . . 135
Changing speed .. ........... .... 138
Driver information ............... 142
Driver interven tion prompt ........ 146
Driving in traffic ...... .... ...... . 136
Driving program ...... .... .... ... 147
Error messages . . . . . . . . . . . . . . . . . . 145
Open road . . . . . . . . . . . . . . . . . . . . . . 136
Override . . . . . . . . . . . . . . . . . . . . . . . . 136
Request for driver to assume control 136
Save speed . . . . . . . . . . . . . . . . . . . . . . 137
Setting distance . . . . . . . . . . . . . . . . . 140
Setting time interval .. .. .......... 140
Settings . . . . . . . . . . . . . . . . . . . . . . . . 147
Specia l driving situations ......... 147
Status messages . . . . . . . . . . . . . . . . . 145
Switching on and off .. .... ... .... 137
System limits ...... .... .......... 147
Tempor arily turning off ... ...... .. 139
warning/indicator lights .... ...... . 143
Adaptive Light ......... ... .... .... ... 73
defective .......... .... ..... .. .... 37
Adding
Engine coolant ......... ... .... ...
305
Engine oil ... .. ...... ....... ..... 302
Windshield washer fluid .... .... ... 312
Additional accessories .... .... .... ... 368
Additives
Engine oil ... .. ..... .. ...... .....
302
Adjusting
Instrument cluster i llumination ......
16
Steering column electrically .... ... 123
Steering column manually ...... ... 122
Ad' . f Justing ront seats .. .... .... .... ... 87
Advanced Key ...... .. .... ........... 59 Care
........ ..... ....... ... .. ...
226
Child restraints .................. 236
Children ....... ....... .... ..... . 235
Components (front airbags) ........ 219
Danger of fitting a chi ld safety seat on the
front passenger seat .. ..... .. ...
214
Disposal ............ .. .... ...... 226
Fron t airbags ...... .... .... .. 216, 217
How do the front airbags work? . ... 221
How many airbags does my vehicle have?
219
How the Advanced Airbag System compo -
nents work together . . . . . . . . . . . . .
220
Important things to know ... ..... .. 212
Indicato r light ...... ... .. .... .... 223
Monitoring .... .... .... ...... .... 223
PASSENGER AIR BAG OFF light ..... 224
Repairs ..... .. .... .... ... ... ... . 226
Driver messages . . . . . . . . . . . . . . . . .
128 Safety instructions .... .... .... ... 225
Locking vehicle ................. .. 61 Side airbags ... .... .... ... ... ... . 228
START button ................... 126 Side curtain airbags (SIDEGUARD) .. 231
Starting engine ........ ..... .. ... 126 Weight-sensing mat .. ....... ..... 235
STOP button .... ... .... .... ...... 127 When must the system be inspected? .. .
Switching engine off ...... .... ...
127 223
Switching on ignition ...... .... ... 126 All Whee l Drive ... .... .... .......... 264
Unlocking vehicle ........... ...... 60 Alloy wheels . .... .... ....... .... ... 283
Air conditioning
See Climate controls ... .......... . 11 O
Airbag
Warning/indicator lights ..... ......
20
Airbag system ... ... .. .... .... .. 212, 229
Advanced Airbag System ...... .... 216
Advanced Airbag System components
219
All- whee l drive
Winter tires .... ........... .... ..
329
Alternator
See Generator . . . . . . . . . . . . . . . . . . . . 19
Anti -freeze
See Engine coolant system ...... .. 303
Anti-glare inside day-night mirror .... .. 82

llffl __ A_l.:,. p _h_ a_ b_e _t _ic _ a_l _in _ d_e _x ____________________________________________ _
Driver seat
See Seating position . . . . . . . . . . . . . . 194
Driver's seat . . . . . . . . . . . . . . . . . . . . . . . . 88
Driver's seat memory . . . . . . . . . . . . . . . . . 91
Activating remote control key .. ... .. 92
Recalling a seat posit ion ...... .... . 91
Storing a seat position . ........ .... 91
Driving messages ...... .... .... .... .. 30
Driving safely .... .... .... ...... .... 192
Driving time . ...... .. .... .... .... .... 40
Dup licate key ........... .... ... .... .. 48
DVD player for navigation system . . . . . . 99
Dynamic shift program .............. 163
E
Easy entry feature 124
Electric seat adjustment
S ee Power seat . . . . . . . . . . . . . . . . . . . 88
Electromechanica l parking brake
Emergency braking .. ...... ...... . 131
Malfunction ...... .... .... ....... 131
Operation . . . . . . . . . . . . . . . . . . . . . . . 129
Parking . . . . . . . . . . . . . . . . . . . . . . . . . 130
Rel easing and app lying .... ... .... 129
Starting off with a trailer ... ..... .. 131
Warning /indicator ligh ts ... .... .... 23
Electronic differential lock (EDU
How the system works . . . . . . . . . . . . 259
Warning /indicator lights ....... .... 22
Electronic immobilizer . ... .... .. . .. 15, 51
Electronic power contro l
(EPC) warning/indicator light ...... .. 19 Electronic stabili
zation program (ESP)
How the system works . ...... ..... 258
Wa rning/indicator lights ......... .. 19
Emergency braking . . . . . . . . . . . . . . . . . 131
Emergency closing Power sunroof ......... .... ... . 68, 69
Emergency flasher . . . . . . . . . . . . . . . . . . . 73
Wa rning/indicator lights ..... ...... 20
Emergency locking of doors ....... ... . 57
Emergency starting .. ... .... .... .... 351
Emergency towing ..... .... .... ... .. 354
Energy management ... .. .... .... ... 265
Battery power . . . . . . . . . . . . . . . . . . . 266
Driver notification 266
Engine Compartment . .... .... .... .... .. 298
Coolant ......................... 303
Hood ... .. .... .... .... .... .... .. 296
Starting ...... ........ .... .. 124, 125
Starting with jumper cables .. ..... 351
Stopping ........................ 126
Engine compartment Safety instructions .... ...... ..... 297
Working the engine compartment .. 297
Engine coolant system ........ .... ... 303
Adding coolan t ..... ........ .... . 305
Checking coo lant level .. ....... ... 304
Check ing the engine coolant level .. 304
Malfunction ......... .... .. .. .... . 33
Radiator fan ...... .. .. .... .... ... 306
Engine coolant temper .ature
Temperature gauge ...... ...... ... 13
Engine data .. ... ... .. .... .... ...... 363 Engine hood
Clos ing ... .... ... ... ... .. .... ... 297
How to release the hood . . . . . . . . . . 296
Engine oi l ..... ... .... .... .. .. ..... . 299
Adding ... .... .... .... .... ... ... 302
Additiv es .. ...... ..... .. .. .... ... 302
Changing . ....... .... ... .. ...... 302
Checking the engine oil level . .... .. 301
Indications and conditions requiring extra
checking .. ...... .... .......... 301
Oil consumption ... .... .... .... .. 300
Oil grades . ...... ... ... .... ..... . 299
Recommended oil che ck in tervals .. 301
Specif ication and viscosity .. .. .. ... 299
Engine oil leve l ... .... .... .. .. ..... .. 37
Engine oil pressure Malfunction .. .. .. .... .... .... .... 34
Eng ine oi l sensor defective .... .... .... 37
Environment Break -in period ........ ..... ..... 267
Catalytic converter .... .... ..... .. 268
Disposing of your vehicle battery .. . 311
Driving a t high speeds ............ 269
Driv ing to minimize pollution and noise .
269
Fuel .... .. .... .... .............. 293
Fuel economy ...... .... .. .. .... .. 269
Leaks under your vehicle ....... ... 297
Letting the vehicle stand and warm up ..
270
Proper disposal of drained brake fluid 307
P roper disposal o f drained engine
coo lant ..... .. .. .... .... ....... 305

___ A_l.:,. p _h_ a_ b_e _t _ic _ a_l _in _ d_e _x ____________________________________________ _
Safety lock
Ignition key , automatic transmission 125
Seat adjustment Adjusting the seatback ............. 89
Adjusting upper thigh support .. .... 90
Driver 's seat . . . . . . . . . . . . . . . . . . . . . . 87
Driver's seat memory . . . . . . . . . . . . . . 91
Front passenger's seat . . . . . . . . . . . . . 88
Front seats . . . . . . . . . . . . . . . . . . . . . . . 87
Head restraints ............... 93, 197
Lumbar support ........... .... ... 90
Seat belts
See Safety be lts ..... ............. 202
Seat memory . . . . . . . . . . . . . . . . . . . . . . . . 91
Seating capacity .................... 202
Seating position
Driver .... .... .... ....... ....... 194
Front passenger . . . . . . . . . . . . . . . . . 195
How to adjust the front seats . . . . . . 195
Incorrect seat position . . . . . . . . . . . . 197
Occupants ...................... 194
Rear passengers . . . . . . . . . . . . . . . . . 196
Seats Number of seats 202
Selective unlock feature . . . . . . . . . . . . . . 55
Selector lever . . . . . . . . . . . . . . . . . . . . . . 154
Selector lever multitronic® ...... .. ... 16 1
Service and disposal Safety belt tensioner . . . . . . . . . . . . . 211
Service interval display ....... .... .... 28
Service position
Windshield wipers ........ ..... ... 80 Servotronic
Power steering . . . . . . . . . . . . . . . . . . 263
Shift buttons .. ...... .... .... ... 158, 165
Side airbags Description .............. ...... .. 228
How they work . . . . . . . . . . . . . . . . . . . 229
Side curtain airbags (SIDEGUARD) ..... 231
Description .......... .......... .. 231
How they work . . . . . . . . . . . . . . . . . . . 232
Safety instructions .... .... ....... 233
Side marker lights ............ ... .... 70
Ski sack . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Snow chains .. ... .... ....... .... ... 330
Sockets . . . . . . . . . . . . . . . . . . . . . . . 105, 106
Solar blower fan/solar roof ... .... .... 119
Sound system display Driver information display .......... 26
Spare whee l ....... .... ... .... ...... 337
Speed control system
See Adaptive Cruise Control .... ... 135
Speed rating letter code ............. 326
Speed warning system ... ........ .... 38
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . 15
Starting off with a trailer ........ .... . 131
Starting the engine ............. 124, 125
What shou ld I do if the engine does not
start? . . . . . . . . . . . . . . . . . . . . . . . . . 125
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Easy entry feature . . . . . . . . . . . . . . . . 124
Electrically adjusting the steering wheel .
123 Malfunction
.. .. .. .. .. .... .... .... 34
Manually adjusting the steering wheel
122
Steering wheel co lumn
Adjusting electrically 123
Adjusting manually . .... .......... 122
Steering wheel heating .... .... .... .. 115
Steps for determining correct load limit 322
Stopping the engine .... ... .... .... .. 126
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Cupholder . ..... ... .... ... .... ... 103
Cupholder rear center armrest . .... 103
Glove compartment ....... .... ... 107
Luggage compartment . ...... ...... 99
Ski sack . . . . . . . . . . . . . . . . . . . . . . . . . 100
Storage compartment Expanding ....................... 96
Sun shade ..... ...... .... ...... ..... 77
Sun visors ............. ........ ..... 76
Suspension
See Adaptive Air Suspension ... .... 182
Switches Emergency flashers ...... .. .... .... 73
Power sunroof .. ...... .... .... .... 66
Rear window defogger ... .. .... ... 117
Symbols Red ....................... ...... 31
Ye llow . ........ .... ... ........... 35
Synchronizing climate control . ....... 112
T
Locking the steering . . . . . . . . . . . . . . 124 Tachometer .......... .... ... .... .... 14

______________________________________________ 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