2008 AUDI S6 check engine

Checking and filling Ill
--------------~-
•
-Now remove the clamps for the charging equipment.
- Close the red cover on the positive pole.
- Close the hood
~ page 297.
A discharged battery can freeze at temperatures of only O °C. Allow
a frozen battery to thaw completely before attempting to charge it
~ & .However, we recommend not using a thawed battery again
because the battery casing can be cracked due to ice formation and
can leak battery acid.
Battery charging (Maximum charging rate of 30
amps/14.8 Volt)
When charging at /ow voltages (e.g. with a trickle charger), the
battery cables do not have to be disconnected first. The battery caps
should
not be opened when charging a battery.
I t is not necessary to remove the battery from the luggage compart­
ment.
Fast charging the battery (charging rate above 14.8
Volts)
For technical reasons do not use a battery charger that uses voltage
greater than 14.8 Volts to charge your vehicle's battery.
& WARNING
Charging a battery can be dangerous.
• Always follow the operating instructions provided by the
battery charger manufacturer when charging your battery.
• Never charge a frozen battery. It may explode because of gas
trapped in the ice. Allow a frozen battery to thaw out first.
• Do not reuse batteries which were frozen. The battery housing
may have cracked and weakened when the battery froze .
• Charge the battery in a well ventilated area. Keep away from
open flame or electrical spark. Do not smoke. Hydrogen gas gener­
ated by the battery is explosive.
&_ WARNING (continued)
• To reduce the danger of explosion, never connect or disconnect
charger cables while the charger is operating.
• Battery acid that may spill during charging should be washed
off with a solution of warm water and baking soda to neutralize
the acid.
0 Note
Never use a fast charger as a booster to start the engine. This will
seriously damage sensitive electronic components, such as control
units, relays, radio, etc., as well as the battery charger. •
Battery replacement
The new battery must have the same specifications and
dimensions as the original equipment battery.
Intelligent energy management in your vehicle is responsible for
distributing the electrical energy throughout your vehicle
~ page 265. The intelligent energy management system will keep
the engine battery charged better then vehicles without this system.
To make sure the additional electrical energy is available once again
after you have changed the battery, we recommend that you install
batteries of the same type and manufacture only (the same as those
installed at the time your vehicle was delivered). Specifications are
listed on the battery housing. Your authorized Audi dealer will then
code the battery management control unit.
If it is not possible to use a battery of this type, the new battery must
have the same capacity, voltage (12 volts), amperage, construction
and plug sealing .
When installing the battery, make sure the ignition and all electrical
consumers are turned off.
~
Vehicle care I t •

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 ...

Emerg ency situ ations -
-------------=--=----
•
Connect POSITIVE (+ ) to PO SITIVE (+ ) (r ed )
- Open the red cover on the pos itive pole => page 352,
fig. 261.
1. Connect one end of the positive cable (red) on the
jump
start bolt=>
page 352, fig. 262 G) (Bolts under red cover
= "positive") of the vehicle to be started @.
2. Connect the other end to the positive terminal@ of the
booster battery ®·
Conn ect NEGATIVE (- ) to NEGATIVE (-) (black )
3. Connect one end to the negat ive termi nal 0 of t he
boos ter battery ®·
4 . Connect the other end of the negative cable (black) to the
jump sta rt bolt 0 (Bolts with hex head = "n egative") of
the vehicle to be s tarted @.
Startin g th e e ngin e
-Start the engine of the veh icle w ith the booster battery .
Run t he engine at a moderate speed .
- Start engine with discharged ve hicle battery in the usual
ma nner.
- If the engine fails to s tart: do not keep the star ter
cranking for longer than 10 seconds. Wait for about
30 seconds and then try again.
- With engine running, remove jumper cables from both
vehicles in the exact reverse order.
- Close the red cover on the positive pole.
The battery is vented to the outside to prevent gases from entering
the vehic le interior . Make sure that the jumper clamps are well connected with their
metal parts in full contact with the battery
t erminals .
& WARNING
To avoid seriou s per sonal in jur y a nd d amage to the vehicle , heed
a ll wa rning s and in stru ction s o f th e jum per ca ble man ufa cturer . If
in doubt , call for ro ad serv ice.
• Jump er c abl es m ust b e lo ng eno ugh so that the vehi cle s d o not
touch .
• When conne cting jumpe r cable s, ma ke sure th at the y cann ot
g et caught in an y mo ving p arts i n the engine comp art m ent .
• Before you che ck anyth ing in the en gin e com partm ent , a lwa ys
r ea d and h eed all W ARNIN GS~ pag e
289, "Engine compa rtm ent ".
0 Note
Improper hook -up of jumper cables can ruin the generato r.
• Always connect POSITIVE(+) to POS ITIVE( +), and NEGATIVE( -) to
NEGATIVE( -) ground post of the battery manager control unit.
• Check that al l screw p lugs on the battery ce lls are screwed in
firm ly . If not, tighten plugs prior to connecting clamp on negative
battery termi nal.
• Please note that the procedure for connecting a jumper cab le as
described above applies specifical ly to the case of your vehicle
being jump started. When you are giving a jump start to another
vehicle, do not connect the negative(-) cable to the negative (-1
terminal on the discharged battery©~ page 352, fig. 262. Instead,
securely connect the negative ( -1 cable to either a solid metal
component that is firmly bolted to the engine b lock or to the engine
block itself . If the battery that is being charged does not vent to the
outside, escap ing battery gas could ignite and exp lode! •
Do-it-yourself service

________________________________________________ E _m_ e_r.:g :;,. e_ n_c ...: y:.- s_ i_ t _u _a_ t_ i_ o _ n_ s __ lll
•
& WARNING
• To reduce the risk of serious injury and vehicle damage.
-Always lift the vehicle only at the special workshop hoist and
floor jack lift points illustrated
=> page 356, fig. 267 and
=> page 356, fig. 268.
- Failure to lift the vehicle at these points could cause the
vehicle to tilt or fall from a lift if there is a change in vehicle
weight distribution and balance. This might happen, for
example, when heavy components such as the engine block or
transmission are removed.
• When removing heavy components like these, anchor vehicle
to hoist or add corresponding weights to maintain the center of
gravity. Otherwise, the vehicle might tilt or slip off the hoist,
causing serious personal injury.
0 Note
• Be aware of the following points before lifting the vehicle:
- The vehicle should never be lifted or jacked up from under­
neath the engine oil pan, the transmission housing, the front or
rear axle or the body side members . This could lead to serious
damage.
- To avoid damage to the underbody or chassis frame, a rubber
pad must be inserted between the floor jack and the lift points.
- Before driving over a workshop hoist, check that the vehicle
weight does not exceed the permissible lifting capacity of the hoist .
- Before driving over a workshop hoist, ensure that there is
sufficient clearance between the hoist and low parts of the
vehicle. •
Do-it-yourself service

_______________________________________________ C _o_ n _ s_u _ m_ e_ r_l_n _f_o _ r_ m_ a_ t _i _o _ n __ PII
workshop personne l in order to assure proper performance, reli ­
abil ity and sa fe ty of the vehicle a nd i ts many sys te m s.
I mproper maintenance, adjustments and repairs can impair the
operation and reliabil ity of your vehicle and even void your vehicle
war ra nty. T here fore, proof o f serv ic ing in accorda nce with the main ­
tenance schedule may be a condition for uphold ing a possible
war ra nty claim made withi n th e warranty per iod .
Above all, operat ional safety can be adverse ly affected, creating
unnece ssary risks fo r you and you r passengers .
If in doubt about a ny servici ng, have it do ne by your authorized Aud i
dea ler or any other properly equipped and qua lified workshop. We
str ongly u rge you to give your auth orized Audi dealer the oppo rtu ­
nity to perform al l scheduled maintenance and necessary repairs.
You r deale r has the facil ities, origi nal par ts and trained special is ts
to keep your vehic le running proper ly.
Performing limited maintenance yourself
T he fo llow ing pages describe a limited numbe r of procedures which
can be perfo rme d on you r vehicle wi th ordi nary too ls, should the
need arise and trained personne l be unavailab le. Before performing
any of these proced ures, always thor oug hly read a ll of th e appli­
cable text and carefu lly fo llow the instructions given. Always rigor ­
ously observe the WARNINGS provided.
Before you check anything in the engine compartment , alway s read
and heed all WARNINGS:::>
& and:::> & in "Wo rking in the engine
compartment" on
page 297.
& WARNING
• Ser ious persona l injury may occur as a result of improperly
performed maintenance , adjustments or repairs.
• Always be e xtremely careful when working on the vehicle .
Always follow commonly accepted safety practices and general
c ommon sense . Never ri sk per sonal injury .
Controls and equip­ ment Safety first
Vehicle operation
& WARNING (continued )
• Do not attempt any of the maintenance , checks or repairs
described on the following pages if you are not fully familiar with
these or other pro cedures with respect to the vehicle , or are uncer­
tain how to proceed.
• Do not do any work without the proper tools and equipment.
Have the necessary work done by your autho rized Audi dealer or
another properly equipped and qualified workshop .
• The engine compartment of any motor vehicle is a potentially
hazardous area . Never reach into the area around or touch the
radiator fan . It i s temperature controlled and can switch on
suddenly - even when the engine is off and the ignition key has
been removed . The radiator fan switche s on automatically when
the coolant reaches a certain tempe rature and will continue to run
until the coolant temperature drops .
• Always remove the ignition key before anyone gets under the
vehicle.
• Always support your vehicle with safety stands if it is neces­
sary to work underneath the vehicle. The jack supplied with the
vehicle is not adequate for this purpose and could collapse
causing serious personal injury .
• If you must work underneath the vehicle with the wheels on
the ground, always make sure the vehicle is on level ground , that
the wheels are always securely blocked and that the engine
cannot be started .
• Always make sure the transmission selector lever (automatic
transmission) is in "P " (Park position) and the park br ake is firmly
appl ied .
ffi For the sake of the environment
• Changing the engine settings wi ll adverse ly affect emission
leve ls. T his is detrimenta l to the envi ro nmen t and i ncreas es fu el
consumption.
Vehicle care Do-it-yourself service Tec hn ica l da ta

llffl __ A_ l..:,. p _ h_ a_ b_e _t_ic _ a_l _in _ d_e_ x ____________________________________________ _
Brake system . . . . . . . . . . . . . . . . . . . . . . . 306
Anti-lock brake system . . . . . . . . . . . . . 22
Brake fluid . . . . . . . . . . . . . . . . . . . . . . 306
Brake fluid specifications for refill and replacement . . . . . . . . . . . . . . . . . . . 307
Brake pads . . . . . . . . . . . . . . . . . . . . . . 268
Electromechanical parking brake ... 129
General information .............. 261
How does moisture or road salt affect the brakes? ....................... 261
Malfunction ........ ... ...... .... . 32
Warning/indicator lights ........... 23
Worn brake pads symbol . . . . . . . . . . . 37
Break -in period . . . . . . . . . . . . . . . . . . . . . 267
Brake pads . . . . . . . . . . . . . . . . . . . . . . 268
Tires .... ... .. .... .... .......... 267
Bu lbs ... .... .. ... ...... ....... .... 349
Bumper cover Caution when parking near a parking bar -
rier or curb ...... ... .... .... ... 130
C
Ca lifornia Proposition 65 Warning 298
Battery specific . . . . . . . . . . . . . . . . . . 310
Capacities ......................... 363
Car care ................. .... .... .. 278
Interior .......... .... .... ...... . 285
Plastic and vinyl .. .... ........... 282
Weatherstrips ....... ........ .... 283
Care of exterior .... ....... .......... 278
Cargo area
See Loading the luggage compartment ..
199 Cargo net
.... .... ... ........ ...... .. 98
Catalytic converter . ........ .... .... . 268
CD changer . . . . . . . . . . . . . . . . . . . . . . . . 107
Central locking Emergency locking . . . . . . . . . . . . . . . . 57
Changing a flat tire ........ .... ... ... 338
Changing a wheel .... .. ..... .. .. .... 338
Changing engine oi l ....... .... ... ... 302
Chassis Undercoating ... .. .... .... .... ... 284
See also Adaptive Aar Suspension . . . 182
CHECK button . . . . . . . . . . . . . . . . . . . . . . . 16
Checking Engine coolant level .............. 304
Checking tire pressure .. ........... .. 319
Child restraints Danger of using child restraints in the front seat ......... ... .... ...... 214
What types of chi ld restraint anchors are
available? . .... ..... ...... .... .. 247
Where can I get additional information
about child restraints? ...... ... .. 248
Child safety ...... ...... .... ... . 234, 239
Additional information ............ 253
Booster seats ................. ... 242
Convertible chi ld safety seats .. .... 240
Convertible locking retractor ....... 244
Guidance fixtures for lower anchorages
250
Important safety instructions for using
child safety seats .... ...... ... .. 237
Important things to know when driving with children ................... 234 Infant
seats ... .... .... ....... .. . 239
Install ing a child restraint using the
LATCH system .. ...... ..... .. ... 252
Lower anchorages ... .. .... .... ... 249
Mounting and releasing the anchorage
hook . ............ ....... .... .. 253
Older children and safety belts ..... 243
Safety belts and older children ..... 243
Tether anchors .. ...... .... ...... 253
Tether strap ... .... .... ...... .... 254
Which restraint system should my older
chi ld wear? ....... ........... .. 243
Child safety lock
rear doors {power) . .... ........ .... 59
Child safety seats .. .... ...... .... ... 239
Convertible locking retractor .. ..... 244
Danger of using child restraints in the
front seat ...................... 214
How do I properly install a child safety
seat in my vehicle? .... ... .... ... 237
Installing .. .. .. .... .... ... .... ... 244
LATCH system ....... ........ .... 252
Safety instructions ............... 237
Cigarette I ig hter . . . . . . . . . . . . . . . . . . . . 105
Cleaning Alcantara {synthetic suede) . ....... 288
Engine compartment ...... .... ... 289
Fabrics and fabric coverings . ...... 285
Instrument panel ....... ........ .. 286
Interior ........... .... .......... 285
Leather ... .... .................. 287
MMI display .............. .... ... 285
MMI terminal .. .... .... ... .... ... 285
Plastic and vinyl ... .... .... .... ... 282

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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:..:..i c.::....:.: a..:..l ..:.in :....:..:: d:.:e :.: x-=---"'
Leather . .... ....... ... . .... .. .. .... 286
Cleaning . .... .... ....... ........ 287
Leve l adjustment
See Adaptive Air Suspension . .... .. 182
Lifting jack . .... ........ ... .... .... . 341
Lifting vehicle ...................... 356
Light Exterior lighting in the mirror housing 73
leaving home ...... ..... .... .... .. 73
Light sensor defective ... .... ... .... .. 36
Lighting in the mirror housing ......... 73
Lights ........ .... .... .... ...... .... 70
Coming home ... .... .... .......... 71
Daytime running lights . .... .... .... 71
Emergency flashers . ... .. .... .... .. 73
Exterior lights . .... .... ... .... .... . 71
Front fog lights ...... .... ..... .. ..
72
Headlights .. ... ... .. .... .... .... . 70
High beam .................... 70, 74
High beam warning/indicator light . .. 22
Leaving home .... .... .... .... ..... 71
Rear fog lights ... .... .... .... .... . 72
Side marker lights .. ...... ...... ... 70
Turn signals .... .... .... .... .... .. 74
Xenon headlights ... ..... .. .. .... .. 70
Loading the luggage compartment .... 199
Loading the roof rack .... ....... .... . 102
Lockable backrest .... ....... .... .... . 96
Locking Power locking switch .... .... .... .. 56
Rear lid/trunk lid .................. 58
Remote control key .......... .... .. 54
Using the key .... .... ... ....... ... 55
Controls and equip­
ment Safety first
Lower anchorage locator button
..... .. 249
Lower universa l anchorage bars (Canada) ..
249
Lower universal anchorages (Canada) .. 249
Luggage Stowing . .... ....... .... .... .... . 199
Luggage compartment ................ 96
Cargo net .... .... ...... ........ .. 98
DVD player for navigation system ... . 99
Expanding .... .... .... .... .... ... . 96
Fastening eyelets ... .... ....... .... 97
Side Compartment .. ....... .... ... 99
Ski sack . .... ....... .. .. .... .... . 100
See also Loading the luggage
compartment ..... .. ... ... .. .... 199
Lumbar support .... ....... .... .... ... 90
M
Maintenance ... ....... .... .... .... . 366
Malfunction Indicator Lamp (MIU .. .. 20, 29
Master key ... ........... ....... .... . 49
Battery replacemen t .. .... .... .. 49, 50
Check light ..... ........... .... ... 49
Mi leage
Average .. ..... ... .... .... .... ... . 40
Instantaneous ... ...... ... .. .... .. 40
Mirrors Activating the digital compass .... ... 85
Adjusting the anti -glare . .... ..... .. 82
Automatic dimming for the outside mirrors . .... .... .... ........ ... . 84
Automatically dimming inside mirror . 82
Inside day -night m irror .... .... .... . 82 Interior mirror
... .. .... .... ..... .. . 82
Outside mirrors ... .... .... .... .... 83
Recalling position of outside mirrors . 91
Storing position of outside mirrors . .. 91
Monitoring the Advanced Airbag System ..
223
multitronic® ........................ 159
Automatic Shift Lock (ASU ....... .. 162
Driving the multitronic® ... .... .... 160
Dynamic shift program .... .... .... 163
Fail-safe mode .... .... ... .... .... 165
Kick-down ....................... 163
Manual shift program ... .... .... .. 164
Se lector lever ... ... .. .... .... .... 161
Steering wheel with tiptronic® .... . 165
tiptronic .... .... .... .... .... ..... 164
N
Natural leather .... .... ... .. .... .... . 286
New tires and wheels . .... ..... ...... 325
NHTSA Contacting ..... .. ... ... .... .... . 201
Number of seats ...... ... .. .... .... . 202
0
Occupant seating positions .. ... .. .... 194
Octane rating .... .... .... .... ... .... 291
Odometer ... .... .... .... ... .... .... . 15
Oil
See Engine oil ... ...... .. . ... ..... 299
Older children and safety belts .... .... 243
Vehicle operation Vehicle care Do-it-yourself service Technical data