2014 AUDI S8 cooling

Trailer load distribution Be sure the load in the trailer is held securely
in place to prevent it from shifting forward,
backward or sideways.
Never allow a passenger to ride in a trailer
¢ .&. in Driving instructions on page 214.
Engine cooling system
Towing a trailer makes the engine work hard ­
er . It is important that the cooling system's
performance is up to the additional load .
Make sure that the cooling system has enough
fluid.
Tire pressure
When towing a trailer, inflate the tires of your
vehicle to the cold tire pressure listed under
"Full load" on the label located on the driver's
side B-pillar (visible when the door is open).
Inflate trailer tires to trailer and tire manufac­
turers' specifications.
Lights
Check to make sure both vehicle and trailer
lights are working properly.
Safety chains Be sure trailer safety chains are properly con­
nected from the trailer to the hitch on the ve­
hicle . Leave enough slack in the chains to per­
mit turning corners . When you install safety
chains, make sure they will not drag on the
road when you are driving.
The chains should cross under the trailer
tongue to prevent it from dropping in case of
separation from the hitch .
Adjusting the Audi drive select Make sure the vehicle is on a level surface
be­
fore
hitching up the trailer and before adjust ­
ing the tongue weight. The vehicle must be in
auto or comfort driving mode and not raised
¢page 110, ~CD .
Make sure that the vehicle is lowered. In Info ­
tainment, select:
ICARI function button> low­
er control button .
Trailer towing 213
If you must drive under poor road conditions,
you can raise the vehicle
after coupling the
trailer or
after adjusting the tongue weight
¢ page 112.
@ Note
- Changes in temperature or load can af­
fect the height of the vehicle.
- Always select auto or comfort mode.
Otherwise, the tongue load specified for
your vehicle will no longer be applicable.
Driving instructions
Driving with a trailer always requires extra
core and consideration.
To obtain the best possible handling of vehicle
and trailer, please note the following:
.,. Do not tow a loaded trailer when your car it­
self is not loaded .
.,. Be especially careful when passing other
vehicles.
.,. Observe speed limits.
.,. Do not drive at the maximum permissible
speed .
.,. Always apply brakes early .
.,. Monitor the temperature gauge.
Weight distribution
Towing a loaded trailer with an empty car re­
sults in a highly unstable distribution 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 con­
trol. This means that the tow vehicle should be loaded to the extent possible and permissi­
ble, while keeping the trailer as light as possi­
ble under the circumstances . Whenever possi­
ble , transfer some cargo to the luggage com­
partment of the tow vehicle while observing
tongue load requirements and vehicle loading
considerations.
Speed
The higher the speed, the more difficult it be­
comes for the driver to control the rig. Do not .,.
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@ For the sake of the environment
-Before changing your oil, first make sure
you know where you can properly dispose
of the used o il.
- Always dispose of used engine oil proper­
l y. Do not dump it on garden soi l, wood­
ed areas, into open streams or down
sewage dra ins.
- Recycle used engine oil by taking it to a
used engine oil collection facility in your
area, or contact a service station .
Engine cooling system
Coolant
The engine coolant performs two functions: it
keeps the engine from overheating and it pro­ tects the engine from freezing in the winter.
The cooling system is sea led and generally re­
q uir es lit tle atten tion .
The cooling system has been filled at the fac ­
tory with a pe rmanent coo lant which does not
need to be c hanged. The coolant consists of a
mixture o f spec ial ly conditioned water and the
manuf acturer 's glyco l-based cool ant ad di-
tiv e G13 antifreeze with ant icorros ion addi ­
tives (50% for USA models ; 60% for Canadian
mod els) . This mixture both assures the neces­
sary frost protection and p rotect s metal com ­
ponents in the engine's coo ling system from
corrosion and scaling . It a lso raises the boil­
i ng point of the coolant .
Do not reduce the concentration o f the coo l­
ant in the summer by adding plain water.
The
proportion of coolant add it ive must be at
l e a st 50 % but not mor e than 60 %
to main­
tain antifreeze protection and coo ling efficien­
cy .
If the coolant frost protect io n is too low,
the coolant cou ld free ze and dam age the veh i­
cle heating and eng ine cooling system.
For yea r-round driving, antifreeze is added at
the fac to ry for tempera tures down to:
-- 31°F( -35°C)USA
- -40 °F ( -40 °C) Canada.
Checkin g and fillin g 239
If you must add coo lant, use a mixture of wa ­
ter and coolant additive . Mix ing the coo lant
additive with distilled water is recommended.
_& WARNING
Before you c heck anything in the engine
compartment, always read and heed a ll
WARNINGS
c> .& in Working in the engine
comportment on page 231.
Q) Note
- Before winter sets in, have the coo lant
checked to see if the coolant additive in
your vehicle is sufficient to meet the cli­ mate condi tions. This is especi ally impor­
tan t if you live i n a region wher e th e win­
ter is ex treme ly co ld. If necessary, i n­
crease t he p ropo rtion of coo lant add itive
to 60% .
- Whe n ad ding coolant additive t o yo ur
c ooling sys tem, reme mbe r:
- We recommend using on ly coolant ad­
d itive G12++ or Gl3 for your vehicle .
This coolant additive is availab le at au­
thor ized Audi dealers . O ther types of
a ntifreeze can s ignifica ntly reduc e cor­
rosion prote ction. The result ing cor ro­
sion can cau se a loss o f coolan t and se­
rio us engine d amage .
- Do not add any ty pe of rad iator leak seal­
a nt to yo ur vehicle 's engine c oolant .
A dd ing radia tor repair fl uid may adverse ­
ly affect the f unction and pe rformance of
your cooling system and co uld resu lt in
damage not covered by your New Ve hicle
L imited Warranty.
-
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24 0 Ch eck ing and filling
Checking the engine coolant level
The engine coolant level can be checked with
a quick glance .
Fig . 204 Eng ine compartment: cover on the coolant
expa nsion tank
Before you check anything in the engine com­
partment,
a lwa ys re ad and h eed a ll WA RN­
INGS o .A in Working in the engine compart­
ment on page 231 .
Park your vehicle on a level surface.
• Switch
off the ignition .
• Read the engine coolant leve l from the cool­
ant expansion tank
o fig. 204, o page 233.
With a cold engine, the coolant level should
be betwee n the "min" and "max" markings.
When the engine is warm, the level may be slightly above the "max" marking .
The location of the coolant expans ion tank
can be seen in the engine compartment illus ­
tration
o page 233.
To obtain an accurate reading, the engine
must be switched
off.
The expansion tank in your vehicle is equipped
with an e lectric coolant level sensor.
When the coolant level is too low, the warning
light in the Auto-Check System
o page 16 wi ll
illuminate unti l you add coolant and the level
has been restored to normal. Even though
there is an electric coolant level sensor, we
still recommend you check the coolant level
from time to time.
Coolant l oss
Coolant loss may indicate a le ak in the cooling
system. In the event of coolant loss, the cool- ing system shou
ld be inspected immediately
by your authorized Audi dea ler . It is not
enough mere ly to add coo lant .
In a
sea le d system, losses can occur on ly if
the boiling point of the coo lant is exceeded as
a res ult of overheating.
A WARNING
-The cooling system is under pressure and
can get very hot. Red uce the risk of scald­
i ng from hot coolant by fo llow ing these
steps.
- Turn
off the engine and allow it to cool
down.
- Protect your face, hands and arms from
escaping flu id and steam by covering the
cap with a large, th ick rag.
- Turn the cap slowly and very carefully in
a counter-clockwise d irect ion while ap­
plying light, downward pressure on the
top of the cap.
- To avo id being burned, do not sp ill anti­
freeze or coolant on the exhaust system
or hot engine parts. Under certa in cond i­
tions, the ethylene glycol in engine cool­
ant can catch fire.
0 Note
Do not add any type of radiator leak seal­
ant to your veh icle's engine coolant . Add­
i ng radiator repa ir fluid may adverse ly af­
fect the funct io n and performance of your
cooling system and could result in damage not covered by your New Vehicle Limited
Warranty.
Adding coolant
Be very careful when adding engine coolant .
Before you check anyth ing in the eng ine com­
partment,
alw ay s re ad and h eed all WARN­
IN GS o .A in Working in the engine compart­
ment on page 231.
• Tu rnoff the engi ne.
• Let the eng ine cool down.

Child safety . ... .... .... ... .. .. .. ... 177
Convertible locking retractor . ... .. .. . 187
Guidance f ixtures for lower anchorages 192
Important safety ins tructions for using
child safety seats ......... .. .. .. .. . 180
Important things to know when dr iv ing
with ch ildren .... .. ...... .. .. .. .. . 177
Tet her anchors .............. .... .. 194
Tethe r straps ............ .. .. .. .. . 194
Ch ild safety lock
Rear doors (mechan ica l) . ..... .... ... 41
Rear doors (powe r) ....... .. .. .. .. .. 41
Chi ld safety seat
Unused safety belts on the rear seat . . 182
C hild safety seats .......... .... .. ... 183
B ooste r seats ... .. .... ... .. .. .. ... 185
Convertible c hild seats . ... .. .. .. .. . 184
Convertible locking retractor . . . . . . . . . 187
How do I properly install a child safety
seat in my vehicle? ........ .. .. .. .. . 180
Infant seats . . . . . . . . . . . . . . . . . . . . . . 183
Ins tall ing ............ ...... .... .. 187
I nstal ling a child restraint us ing the
L A TC H system ............ .... .. ... 193
L A TC H sys tem ............ .... .. .. . 193
L ower anchorages ........ .. .. .. .. . 19 1
M ounting and releasing the ancho rage
hook . ..... .. ... .. ..... ... .. .. ... 193
Safety inst ructions . . . . . . . . . . . . . . . . . 180
Clea ning .. .. .. ........... .. .. .. ... 2 16
Climate controls . . . . . . . . . . . . . . . . . . . . . 79
Climate control system Supp lementary heater . . . . . . . . . . . . . . . 82
C lock . .. .. .. ................. .. .. .. 27
C losing
Panoramic sunroof . ....... .. .. .. .. .. 44
Sliding/tilti ng su nroof ........ .... ... 43
Sun shade (panoramic sun roof) . ...... 45
Cold tire inflat ion pressure ... .. .. .. .. . 252
Com ing home ............. .... .. .. .. 48
Compact spare tire ............ .... .. 271
Compartments .... ..... ... .. .. .. .... 75
Compass in the mir ro r ...... .. .. .. .. .. 56
Compliance .. .. ........... .. .. .. ... 295
Consumer Info rmation . . . . . . . . . . 14 3, 29 2
Consumpt ion (fue l) . . . . . . . . . . . . . . . . . . 25
Contact ing N HTSA ......... .. .. .. .. . 143
Inde x 299
Controls
Cleaning . ... .. .... . ... ...... ... .. 218
Convenie nce key . .. ................. . 35
Star ting the engine ............ .. .. . 84
Stopping the eng ine (S TAR T E NGIN E
STOP b utton) . . . . . . . . . . . . . . . . . . . . . . 84
Switching the ignition on .... ... .. .. . 84
U nlocking and loc king vehicle . ... .. .. . 3S
Conve rtib le child sa fe ty seats ....... .. 18 4
Convertib le locking retractor
Activati ng . . . . . . . . . . . . . . . . . . . . . . . . 189
Deact ivati ng .. ... .. ..... .......... 189
U sing to secure a child safety seat l.87, 189
Coolant
refer to Eng ine coolant ......... .. .. 239
Cooler ... .. .. .... ... .. .. ..... ... .. . 76
Cleaning . ... .. .... . ... ...... ... .. 219
Operation . . . . . . . . . . . . . . . . . . . . . . . . . 76
Cooling mode (automat ic cl im ate control) 80
Cruise contro l
Changi ng speed .. .. .. .. ...... .... .. 92
P res ett ing your speed ............. .. 92
Swit ch ing off .. .. .... ........... .. . 92
Swi tching on . .. ...... ........... .. . 91
(upholder .. .. .. .. .... ... .... .... .. . 75
C ur ve lig ht . ... .... .. . .. .. ..... ... .. 110
Cylinder on demand System ...... .. .. . 27
D
Data recorder . . . . . . . . . . . . . . . . . . . . . . 199
Date dis p lay . . . . . . . . . . . . . . . . . . . . . . . . 2 7
Dayt ime run ning lights ........... .. .. . 46
Declarat ion of compliance
Adaptive cruise control . .. .. ... ... .. 295
Audi s ide ass ist .................. . 295
Cell phone package . ............... 295
Co nvenience key .. .... ......... .. .. 295
El ec tronic immob ilizer .......... .... 295
HomeL in k unive rsal remote con trol ... 295
Remote contro l key .. ... .... ... .. .. 2 95
Deco rative pa rts/tr im
Cleaning .. .. .. .. ................. 218
DEF What does this mea n when it appears in
the tr ip odometer display? ........... 27
Defective light bu lb wa rning ... ... .. .. . 22
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When should I adjust the tire pressures? 255
When should I check the tire pressures? . 255
Where are lower anchorages located? .. . 191
Where can I find the tire pressures for my
car? ... ..... .. ................ .... 254
Why safety belts? . . . . . . . . . . . . . . 145, 146
Windows Cleaning/removing ice ..... .. .. .. .. . 218
defrosting .. ............. .... .. .... 81
Windshield Cleaning ... ................ ... .... 53
defrosting . ................. ... .... 81
Windshield washer system .. .. .. .. .. .. 53
Washer fluid level . . . . . . . . . . . . . . . . . . 21
Washer reservoir ............ ... .. . 247
Windshield wipers Cleaning . .. ............. .... .. .... 54
Folding up . . . . . . . . . . . . . . . . . . . . . . . . 54
I ndicator light . . . . . . . . . . . . . . . . . . . . . 22
Replacing windshield wiper blades ... .. 54
Switching on/off . . . . . . . . . . . . . . . . . . . 53
Winter operation Battery . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Car washes . ............. .... .. .. . 216
Cooling system .............. ... ... 239
Defrosting windows .......... ... .. .. 81
Removing ice from windows . ... .. .. . 218
Seat heating ............. .... .. .... 81
Steering wheel heating .... .. .. .. .. .. 82
Tires .. .. .. .... ... .. ... ... .. .. .. . 204
Winter tires . ................. ... ... 263
All-wheel drive .............. ... ... 263
X
Xenon-Lights ................. ... ... 282
Xenon plus headlights ...... .. .. .. .. .. 46
Index 309
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