tow AUDI S6 2008 Service Manual

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& WARNING !continued)
• Never start or run the engine while the vehicle is supported by
the jack.
• If you must work under the vehicle, always use safety stands
specifically designed for this purpose.
• Never use the hexagonal socket in the handle of the screw­
driver to loosen or tighten the wheel bolts .
• Always make sure the spare tire and even a flat tire are secured
in place and not loose , otherwise they could fly forward , causing
personal injury to passengers in the vehicle in an accident or
sudden maneuver. •
Tools
The vehicle tools are stored in the luggage compartment
behind the right-side trim panel.
-
T he onboard tool kit includes:
• Hook for removing wheel covers *
• Plastic hook to remove wheel bolt covers
• Wheel bolt wrench
• Alignment pin for changing wheels
Fig. 247 Luggage
compartment: vehicle
tool kit
• Screwdriver with reversible blade
• Towing eye
[ i ] Tips
Some of the on board items listed above are provided on certain
models only or are optional extras. •
Spare wheel
The spare wheel is stored in the wheel well underneath
the floor panel in the luggage compartment.
Fig. 248 Luggage
compartment spare
wheel
Your vehicle is equipped with a regular spare wheel. It is
held in place by plastic retaining knurled screw.
Taking out the spare wheel
- Raise the floor panel at the plast ic handle.
- Securely engage the handle in the luggage compartment
seal as illustrated to keep the floor panel up.
- Unscrew the knurled retainer bolt in the wheel center
~ fig. 248. Turn it counter-clockwise.
- Take out the spare wheel.
Vehicle care Do-it-yourself service 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 ...

Emergency situations Ill
-------------=--=----
•
Emergency situations
General
This chapter is intended for trained emergency crews and working
pe rsonnel who have the necessary tools and equ ipment to perform
these operations. •
Starting by pushing or towing
(D Note
You r ve hicle is eq uipped w ith an automatic trans missi on. C o nse ­
quent ly, the engine cannot be started by pushing or towing .•
Starting with jumper cables
If necess ary, the en gine can b e sta rted by conn ectin g it to
the battery of anothe r vehicle.
If th e engine should fail to start because of a discharged or weak
b at te ry, the batt ery ca n be co nnected t o the ba ttery of another
vehicle, using a
pair of jumper cables to start the engine .
Jumper cables
Use only jumper cables of sufficiently large cross section to carry the
s tarte r curre nt safely. Refer t o the manu fac tu rer 's specif ica tions.
Use only ju mper cabl es with insulated terminal clamps whic h are
distinct ly marked:
plus ( +l cable in mo st cas es c olored red
minus
(- 1 cable in most cases colored black .
& WARNING
Batteries contain electricity, acid , and gas. Any of the se can cause
very ser ious or fatal injury . Follow the instructions below for safe
handling of your vehicle 's battery .
• Always shield your eyes and avoid leaning over the battery
whenever possible .
• A discharged battery can freeze at temperatures just below
32 °F (0 °C l. Before connecting a jumper cable , you must thaw the
frozen battery completely , otherwise it could explode .
• Do not allow battery acid to conta ct eyes or skin. Flush any
contacted area with water immediately.
• Improper use of a booster battery to start a vehicle may cause
an explosion.
• Vehicle batteries generate explosive gases . Keep sparks , flame
and lighted c igarettes away from batteries.
• Do not try to jump start any vehicle with a low acid level in the
battery.
• The voltage of the booster battery must also have a 12-Volt
rating. The capacity (Ah l of the booster battery should not be
lower than that of the discharged battery . Use of batteries of
different voltage or substantially different "Ah" rating may cause
an explosion and personal injury .
• Never charge a frozen battery. Gas trapped in the ice may cause
an explosion.
• Never charge or use a battery that has been frozen . The battery
c ase may have be weakened .
• Use of batter ies of different voltage or substantially different
c apacity (Ah l rating may cause an explosion and injury . The
capacity (Ahl of the booster batte ry should not be lower than that
of the discharged battery. _..
Do-it-yourself service

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Emergency towing with commercial
tow truck
General hints
Your Audi requires special handling for towing.
The following information is to be used by commercial tow truck
operators who know how to operate their equipment safely.
• Never tow your Audi, towing will cause damage to the engine
and transmission.
• Never wrap the safety chains or winch cables around the brake
lines.
• To prevent unnecessary damage, your Audi must be transported
with a flat bed truck.
• To load the vehicle on to the flat bed, use the towing loop found
in the vehicle tools and attach to the front or rear anchorage
~ page 354 and~ page 355.
& WARNING
A vehicle being towed is not safe for passengers. Never allow
anyone to ride in a vehicle being towed, for any reason. •
Front towing loop
Do not install the front towing loop until it is needed.
Fig. 263 Front
bumper: removing the
cover cap
Fig . 264 Front
bumper: screwing in
the towing loop
The towing loop fits into the threaded hole located on the
right side of the front bumper and covered by a small cover
when not in use.
- Remove the towing loop from the vehicle toolkit
=>
page 336.
- Press the cover in by applying short sharp pressure to the
bottom part to release it from the bumper => fig. 263.
- Screw the towing loop tightly into the threaded hole as
far as it will go=> fig. 264. ..,

Emergency situations -
----------------=-~----
When it is no longer needed, unscrew the towing loop and put it
back into the vehicle toolkit. Be sure to have the towing loop stored
in the vehicle at all times.
& WARNING
If the towing loop is not screwed in as far as it will go, the thread
can pull out when the vehicle is towed -potential risk of an
accident. •
Rear towing loop
Do not install the rear towing loop until it is needed.
Fig. 265 Rear bumper:
screwing in the towing
loop
On the right side under the rear bumper there is a threaded
hole for the towing loop. The threaded hole is protected by
a cover.
- Remove the towing loop from the vehicle toolkit
=> page 336.
- Pull the protective cover out of the threaded hole
~ fig. 265 .
- Screw the towing loop tightly into the threaded hole as far as it will go .
When it is no longer needed, unscrew the towing loop and put it
back into the vehicle toolkit. Be sure to have the towing loop stored
in the vehicle at all times.
& WARNING
If the towing loop is not screwed in as far as it will go, the thread
can pull out when the vehicle is towed -potential risk of an
accident. •
Loading the vehicle onto a flat bed truck
Front hook up
Fig. 266 Vehicle on flat
bed truck
- Align the vehicle with the centerline of the car carrier
ramp.
- Attach the winch hook to the front towline eye previously
installed .
Rear hook up
-Align the vehicle with the centerline of the car carrier
ramp.
Vehicle care Do-it-yourself service irechnical data

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- Attach the winch hook to the rear towline eye previously
installed.
[ i ) Tips
Check carefully to make sure the hook -up is secure before moving
the ca r up the flatbed t ruck ramp. •
Lifting vehicle
Lifting with workshop hoist and with floor
jack
The vehicle may only be lifted at the lifting points illus ­
trated.
Fig . 267 Front lifting
point
- Read and heed WARNING::::,& .
Fig. 268 Rear lifting
point
- Locate lifting points::::, fig. 267 ::::, fig. 268.
- Adjust lifting arms of workshop hoist or floor jack to
match vehicle lifting points.
- Insert a rubber pad between the floor jack/workshop
hoist and the lifting points.
If you must lift your vehicle with a floor jack to work underneath, be
sure the vehicle is safely supported on stands intended for this
purpose.
Front lifting point
The lifting point is located on the floor pan reinforcement about at
the same level as the jack mounting point:::::, fig. 267 .
Do not lift the
vehicle at the vertical sill reinforcement.
Rear lifting point
The lifting point is located on the vertical reinforcement of the lower
sill for the on board jack:::::, fig. 268.
Lifting with vehicle jack
Refer to :::::, page 341 .

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Consumer Information
Warranty coverages
Y o ur A udi i s covere d by the f ollowi ng wa rrant ie s:
• Limited New Vehicle Warranty
• Limited Warranty Against Corrosion Perforation
• Emissions Control System Warranty
• Emissions Performance Warranty
• California Emissions Control Warranty (USA vehicles only)
• California Emissions Performance Warranty (USA vehicles only)
Detai led information regarding your warrant ies can be found in
your
Mainten an ce & Warr ant y booklet .•
Reporting safety defects
Applicable to U.S.A . only
If you believe that your vehicle has a defect which cou ld cause a
crash or cou ld cause injury or death, you should immediately inform
the National Highway Traffic Safety Administration (NH TSAl in addi­
tion to notifying Audi of America, Inc .
If NHTSA receives simi lar complaints, it may open an invest igation,
and if it finds that a safety defects exists in a group of vehicles, it
may order a recall and remedy campaign. However, NHTSA cannot
become invo lved in individual problems between you, your dealer ,
or Audi of America, Inc .
To contact N HTSA, you may cal l the Vehic le Safety Hotline toll -free
at:
T el.: 1-888 -327-4236 ( TTY: 1-800 -424 -9153)
or write to:
Controls and equip­ ment Safety first Vehicle operation
Administrator
N ational Highway Traffic Safety Administration
400 Seventh Street, S.W.
Washington, D.C. 20590
You can also obtain other informat ion about motor vehicle safety
from :
www .safer car.gov •
Applicable to Canada only
Canad ian custome rs who wish to repo rt a safety -re lated defect to
Transport Canada, Defect Investiga tions and Recalls, may telephone
the toll free hotline:
Tel.: 1 -800-333 -0371
or contact Transport Canada by mail at :
Road Safety and Motor Vehic le Regulation Directorate
Transport Canada
Tower C, Place de Ville, 330 Sparks S treet
Ottawa, ON
K1 A O N 5
For additional road safe ty informatio n, p lease visit the Road Safety
website at:
http ://www .tc.gc .ca/roadsafety/men u.htm •
Operating your vehicle outside the
U.S.A. or Canada
Governmen t regulations in the Un ited States and Canada require
that automobiles meet specific emission regu lations and safety .,_
Vehicle care Do-it-yourself service Tec hn ica l da ta

___ 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