2008 AUDI S6 technical data

Operating instructions
Max im um tra iler weight
A trailer for your vehicle is limited to a typical class 1 or class 2
trailer.
T ra ile r l oa d di stributio n
Be sure the load in the trailer is he ld securely in place to prevent it
from shifting forward, backward or sideways .
Never allo w a passe nger to r ide in a tr aile r~ & in "Driving instruc­
tions" .
Engin e c oolin g sys te m
Towing a trailer makes the eng ine work harder. It is important that
the cooling system's performance is up to the additiona l load. Make
sure that the coo ling system has enough fluid .
Tire pr ess ure
When towing a trailer, inflate the tires of your vehicle to the co ld tire
pressure listed under "Full load" on the labe l located either on the
driver's side B -pil lar (visible when the door is open) or inside the fuel
filler flap . Inflate trai ler tires to trai ler and tire manufacturers' spec­
ifications.
L ig ht s
The head light settings should be checked wit h the trai ler attached
before driving off. Check to make sure both vehicle and trai ler lights
are working properly .
Safe ty c ha in s
Be sure traile r safety chains are properly connected from the trailer
to the hitch on the vehicle. Leave enough slack in the chains to
perm it turning corners . When you i nsta ll safety chains, make sure
they will not drag on the road when you are driving.
T he chains should cross under the trailer tongue to prevent it from
dropping in case of separat ion from the hitch.
Controls and equip­
ment Safety first Vehicle operation
Tr
aile r t owing
0 Note
If you are going to tow a trai ler, you must activate the trailer opera­
tion mode ~
page 184, "Towing a trailer". •
Driving instructions
Driving with a trailer always requires extra care and
consideration.
To obtain the best possible handling of veh icle and trailer,
please note t he following :
- Do not tow a loaded trailer when your car itself is not
loaded.
Be espec ia lly careful whe n passing other vehicles.
- Observe s peed limits .
Do not drive at the maximum permiss ible speed .
Always apply brakes ear ly.
Moni tor t he temperature ga uge.
Weight distr ibution
Towing a loaded trailer with an empty car results in a highly
unstable distr ibution of weight. If this cannot be avoided, drive at
very low speeds only to avoid the risk of losing steering control.
A "balanced" rig is easier to operate and control. This means that
the tow vehicle should be loaded to the extent possible and perm is ­
s ib le, while keeping the trailer as light as possib le under the circum ­
stances . Whenever possible, transfe r so me cargo to t he luggage
compartment of the tow vehicle whi le observing tongue load
requirements and vehicle loading considera tions . .,
Vehicle care Do-it-yourself service Technical data

-Wit h chocks i n place, slowly release the brakes until the
wheel chocks absorb the load .
- Turn the wheels towards the curb.
- Apply the parking brake.
- Move the selector lever to
P.
Wh en r est arting aft er parking :
-Apply the foot brake.
- Start the engine.
- Move the selector lever to
D .
- Release the parking brake and slowly pull out and away
f rom the whee l chocks.
- Stop and have someone retrieve the wheel chocks .
[ i ) Tip s
If you move the selector lever of the automatic transmission to P
befor e applying th e parking brake and before blocking th e wheels ,
you may have to use more force later to move the lever out of the
P
position .
Controls and equip­ ment Safety first Vehicle operation
Tr
aile r t owing
Vehicle care Do-it-yourself service Technical data

Fuel supply and filling your fuel tank
Blend of gasoline and ethanol (grain alcohol or ethyl alcohol}
• Anti-knock index must be 87 AKI or higher.
• Blend must not contain more than 10% ethanol.
Blend of gasoline and MTBE
• Anti-knock index must be 87 AKI or higher.
• Blend must contain not more than 15% MTBE.
Seasonally adjusted gasoline
Many gasoline grades are blended to perform especially well for
winter or summer driving. During seasonal change -over, we suggest
that you fill up at busy gas stations where the seasonal adjustment
is more likely to be made in time.
0 Note
• Methanol fuels which do not meet these requirements may
cause corrosion and damage to plastic and rubber components in
the fuel system.
• Do not use fuels that fail to meet the specified criteria in this
chapter.
• If you are unable to determine whether or not a particular fuel
blend meets the specifications, ask your service station or its fuel
supplier.
• Do not use fuel for which the contents cannot be identified.
• Fuel system damage and performance problems resulting from
the use of fuels different from those specified are not the responsi ­
bility of Audi and are not covered under the New Vehicle or the
Emission Control System Warranties.
• If you experience a loss of fuel economy or driveability and
performance problems due to the use of one of these fuel blends,
we recommend that you switch to unblended fuel. •
Gasoline additives
A major concern among many auto manufacturers is carbon
deposit build-up caused by the type of gasoline you use.
Although gasoline grades differ from one manufacturer to another,
they have certain things in common. All gasoline grades contain
substances that can cause deposits to collect on vital engine parts,
such as fuel injectors and intake valves. Although most gasoline
brands include additives to keep engine and fuel systems clean,
they are not equally effective.
Audi recommends using TOP TIER Detergent Gasoline. For more
information on TOP TIER Detergent Gasoline, please go to the offi­
cial website (www.toptiergas.com).
After an extended period of using inadequate fuels, carbon deposit
build-ups can rob your engine of peak performance.
(D Note
Damage or malfunction due to poor fuel quality is not covered by
the Audi New Vehicle Limited Warranty. •
Fuel tank
Fuel filler neck
The fuel filler neck is located on the right rear side panel behind the
fuel filler flap.
If the power locking system should fail, you can still open the flap
manually - for detailed instructions see=>
page 295.
You can find the fuel tank capacity of your vehicle in Technical Data
=> page 363. .,_

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

_____________________________________________ W_ h_ a_t _d_ o_l _ d_o _ n_o_ w_ ? _ __._
& 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

_________________________________________________ F_ u_ s_ e_s _ a_n _d_ b_ u _ lb_ s _ __.1111
Fuses and bulbs
Fuses
Replacing a fuse
A problem in the electrical system may be caused by a
blown fuse.
Fig . 256 Ins trumen t
pa nel left: Face c over
F ig . 257 I nst rume nt
pa nel left: Co ntent
F ac e cover
- Locate the fuse which belongs to the component which
failed.
- Switch off the ignition and the e lectr ica l component
affected. - Carefully p
ry t he face cover off the instr umen t pane l
using the ignition key or a screwdriver~ fig. 256.
- Rem ove the plastic clip @ from i ts retainer in the face
cove r~ fig. 257, p lace i t over the questionable fuse and
remove the fuse.
- Replace a blown fuse (recognizable by the melted metal
str ip inside) wi th a f use of the
same amperage.
The individual circuits are protected by fuses. T he fuse panels with
the fuses are located on the left and right front faces of the instru­
ment pane l behind a cover and in the right storage area in the
luggage compartment.
There is a plastic clip @ in the cover on the lef t side of the instru ­
ment pane l, which can be used to remove the fuses . The crank © is
used for emergency operation of the power roof*. You will also find
a label on both covers in the instrument panel with the fuse layout
© for the corresponding fuse panel.
& WARNING
Nev er r eplac e a fuse with one that ha s a high er amperag e rati ng.
• A fu se w ith a to o high ampe rage co uld d amag e the ele ctr ical
pa rt a nd cau se a fire .
0 Note
• On no account should fuses be repaired (e .g. patched up wi th tin
foil or wire) as this may cause serious damage elsewhere in the e lec­
trica l circuit o r cause fire.
• If a fuse blows repeatedly, do not keep replacing it. Instead , have
the cause of the repea ted short circuit or overload located and fixed.
ti>
Vehicle care Do-it-yourself service Technical data

lllffll,___G_ e_ n_ e_r_a _ l_ i _n_ f_ o_ rm_ a _t_io _ n _______________________________________________ _
General information
Explanation of technical data
Some of the technical data listed in this manual requires
further explanation.
The technical data for your vehicle is listed in the charts starting on
~ page 363. This section provides general information, notes and
restrictions which app ly to this data. •
Vehicle identification
The key data is given on the vehicle identification number
(VIN) pla te and the vehicle data st icker.
F ig. 269 Ve hicl e Id enti ­
fi ca tion Number (V IN)
pl ate : lo cation on
d riv er 's s ide das h
pan el F
ig . 2 70 The vehi cle
i d e ntifi cat ion la be l -
i nside the lug gag e
com partm ent
The Vehicle Id enti fication Numb er (V IN)
is located on the driver's side so that it is visible from the outside
through the windshield ~ fig . 269 .
The veh icle i de ntifi cat ion lab el
is located in the luggage compar tment near the battery.
The label~ fig. 270 shows the following vehic le data :
0 Production control No.
0 Vehicle identification No.
G) Type code number
© Type designation/engine output in Ki lowatts
@ Engine and transmission code letter
© Paint No./lnterior
0 Optiona l equipment No.'s
Vehicle data 2 to 7 are also found in your Maintenance
& Warranty
booklet.
Th e s afet y co mpli ance sti cker
is your assurance that your new vehicle complies with a ll app licable
Federa l Motor Vehicle Safety Standards which were in effect at the
time the vehicle was manu factured. You can find this sticker on the
left door jamb . It shows the month and year of production and the .._

Alphab eti ca l ind ex -
-------------=----
Anti-loc k brake syst em
H ow the ABS system works ....... . 262
War ning/i ndicato r lights ... ....... .. 22
Anti -Slip Regulation System (ASR)
How the system works ............ 260
Anti-theft systems Anti-theft alarm system . .... .... ... 61
Electronic immobilizer ... .. .... .... 51
Ti lt sensors . ... .. .... ..... .. ... ... 62
Ashtray Front . ...... .... .... ...... .... .. 104
Rear .... ... .. .... .... ... .... .... 105
ASR How the Anti -Slip Regu lation System
works . ... .. .... .... ... .... .... 260
As terisk
What does it mean when something is marked with an asterisk? .. ... ...... 6
Audi Parking System Acoustic parking sys tem tips ...... . 179
Adjusting the chimes -option 1 ... .. 178
Adjusting the chimes -option 2 ... .. 179
General Information ... .. .... .... . 167
Notes on distance information ..... 177
P arking next to obstacles .......... 176
rear . .............. .......... ... 167
rear, with rear-view camera ........ 169
Rear -view camera -parking mode 1 173
Rear -view camera -parking mode 2 . 175
Rear -view camera (Rear View) .. .... 17 1
Rear -view camera coverage area . ... 173
Rear-view camera tips .. ...... .... . 180
Specia l parking situations .... .... . 176
Controls and equip­
ment Safety first
Audi Parking System
(rear)
Adjusting the chimes ... .. .... .... 168
Audi Service Repair Manua ls and Li terature
366
AUTO mode AC climate contro ls ............... 113
Au to Safety Hotline ..... .... .... ..... 201
Auto -Check Control .. .... ...... ....... 30
Automatic belt retractor ... .. .... .... . 206
Automatic car wash
See Was hing .. ... ..... ....... .... 279
Automatic Shift Lock (ASU ........ 155, 162
Automatic transmission
6 -speed automatic transmission .. .. 153
Automatic Shift Lock (ASU ... .. 1 55, 162
Driving .......................... 153
Dynamic shift program ............ 156
Emergency release for selector lever 159
Emergency release for selector lever
(mult itronic®) ...... .... .... .... 1 66
Fail -safe mode . ...... .... .... .... 158
I gnition key safety lock ............ 125
Kick -down . ....... .... .... .... ... 156
Manual shift program ............. 157
multitronic® ................... .. 159
Selector lever ................ 154, 161
Shift buttons ................ 158, 165
Steering wheel with tiptron ic® . 158, 165
Average speed ....................... 40
Avo id damaging the vehicle ...... .... . 269
B
Battery .. ........ ....... ........ ... 307
Battery location inside the lu ggage
compartment . ...... ... .... .... . 308
Charging .. .... ....... ..... .... .. 3 10
Important warnings when working on the
battery ...... .... ... .... ...... . 308
J ump starting ..... .... ... .... .... 35 1
Low ...... ... .... .... ...... ... .. 265
Replacing the battery ..... .... ... . 311
State of charge . .... ...... .... ... . 265
Voltage .. .... .................... 37
Winter operation ......... .... .... 307
Working on the battery ........ .... 308
Before driving ... .... .... ..... .. .... 193
Blended gasoline ...... ... .... .... ... 29 1
Body cav ity sealing .......... ........ 284
Booster seats .. ... .. .... .... .... ... . 242
How do I properly insta ll a b ooster sea t in
my vehicle? ....... ........ .... . 24 2
Safety instructions ................ 242
Brake assistant ....... ... .... .... ... 263
Brake booster .. ...... .... ... .... .... 262
Brake fluid Changing the brake fluid .......... . 307
Checking the brake fluid leve l ...... 306
Reservoir .. .... .... ............. . 306
What is the correct brake fluid leve l? 306
What should I do i f the brake f luid warning
light comes on? .. ....... ........ 306
Brake light Defective ... .. .... .... .... ...... .. 27
Vehicle operation Vehicle care Do-it-yourself service Technical data