2010 AUDI S8 coolant reservoir

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Closing the engine hood
- Pull the hood down until the pressure from the struts is
reduced.
- Let the hood
drop down and latch in place. Do not try to
push it shut;
it may fail to engage=:> &.
& WARNING
A hood that is not completely latched could fly up and block your
view while driving.
• When you close the engine hood, check it to make sure the
safety catch has properly engaged. The hood should be flush with
the surrounding vehicle body parts.
• If you notice while driving that the hood is not secured prop­
erly, stop at once and close it. •
Working in the engine compartment
Be especially careful whenever you work in the engine
compartment.
Whenever you must perform any work in the engine compartment,
for example checking and filling different fluids, there is a risk of injury, burns and accidents. To prevent personal injury always
observe the following WARNINGS. The engine compartment of any
vehicle is a hazardous area=>& .
& WARNING
To help avoid injury, before you check anything under the hood:
• Turn off the engine.
• Remove the ignition key.
• Apply the parking brake.
Safety first
& WARNING (continued)
• Move selector lever to "P" (Park).
• Always let the engine cool down. Hot components will burn
skin on contact.
• To reduce the risk of being burned, never open the hood if you
see or hear steam or coolant escaping from the engine compart­
ment. Wait until no steam or coolant can be seen or heard before
carefully opening the hood.
• Keep children away from the engine compartment.
• Never spill fluids on hot engine components. They can cause a
fire. • Never touch the radiator fan. The auxiliary electric fan is
temperature controlled and can switch on suddenly.
• Never open the coolant reservoir cap when the engine is still
warm. The coolant system is pressurized and hot coolant could
spray out.
• Protect your face, hands and arm from steam or hot engine
coolant by placing a thick rag over the cap when you open the
coolant reservoir.
• If work on the fuel system or the electrical system is necessary:
- Always disconnect the battery.
- Never smoke or work near heaters or open flames. Fluids in
the engine compartment could start a fire.
- Keep an approved fire extinguisher immediately available.
• To avoid electrical shock and personal injury while the engine is
running or being started, never touch:
-Ignition cables
- Other components of the high voltage electronic ignition
system.
• If you must perform a check or repair with the engine running:
- First, fully apply the parking brake, move selector lever to
"P" (Park). .,
Vehicle care Technical data

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& WARNING (continued)
-Always use extreme caution to prevent clothing, jewelry, or
long hair from getting caught in the radiator fan, V-belts or
other moving parts, or from contacting hot parts. Tie back hair
before starting, and do not wear clothing that will hang or
droop into the engine.
• Minimize exposure to emission and chemical hazards=:>
/1::..
& WARNING
California Proposition 65 Warning:
• Engine exhaust, some of its constituents, and certain vehicle
components contain or emit chemicals known to the State of Cali­
fornia to cause cancer and birth defects and reproductive harm. In
addition, certain fluids contained in vehicles and certain products
of component wear contain or emit chemicals known to the State
of California to cause cancer and birth defects or other reproduc­
tive harm.
• Battery posts, terminals and related accessories contain lead
and lead compounds, chemicals known to the State of California
to cause cancer and reproductive harms. Wash hands after
handling.
0 Note
When adding fluids, always make sure that they are poured into the
proper container or filler opening, otherwise serious damage to
vehicle systems wi ll occur.
ci> For the sake of the environment
To detect leaks in time, inspect the vehicle floor pan from underneath
reg ular ly. If yo u see spots from oil or other vehicle fluids, have your
vehicle inspected by an authorized Audi dea ler.•
Engine compartment
Applies to veh icles: w ith 8 -cylinde r engine
Engine compartment overview : a-cylinder
engine
These are the most important items that you can check.
Fig. 241 Typical layout for containers, engine oil dipstick and engine oil filler
cap
© Windshield/headlight washer container (0 ) ....... .
@ Brake fluid reservoir ( ) .................. .. .. . .
® Engine oil filler cap ('l=r.) ............ .. .... .. .. . .
© Engine oil dipstick (orange) .............. .. . ... . .
© Power steering reservoir . .. .. .. .. .. ... .... .. .. . .
© Coolant expansion tank (-L ) ........... .. .. .. .. . .
305
299
294
293
257
297 ..

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& WARNING
Before you check anything in the engine compartment , always
read and heed all WARNINGS=>
& in "Working in the engine
c ompartment " on
page 289 . •
Applies to vehicles : w it h 12-cylin der engine
Engine compartment overv iew: 12-
cylinder engine
These are the most important items that you can check .
Fig. 242 T ypic al la yo ut fo r co nta iner s, engi ne oil dip stick and e ngine o il fill er
cap
(D W indsh ield/ headligh t washer con tainer (Q ) . . . . . . . . 305
@ Brake fluid reservoir(' ) . . . . . . . . . . . . . . . . . . . . . . . . 299
® Engine oil dipst ick (o range) . . . . . . . . . . . . . . . . . . . . . . 293
~ehicle OP-eration
© Engine oil filler cap (~) .. . ...... ............. . .
© Coolant expansion tank (-1- ) .................... .
& WARNING
294
297
Before you check anything in the engine compartment , alw ay s
read and heed all WARNINGS=>
& in "Working in the engine
c ompa rtment " on
page 289 .
[ i ] Tips
The coo la nt expansion tank is located under a cover. •
Engine oil
Engine oil specifications
The engi ne oil used in your Audi needs the right k ind of oil .
The eng ine in your Audi is a soph isticated powerplant that was built
to exacting specificat io ns. This engine needs the r ight kind of engine
oil that meets sp ecifications regard ing qua lity and viscosity so that it
can run smoothly and reliably . Choosing the right oil and chang ing oi l
with in the time and mi leage intervals prin ted in your veh icle's
Warranty
& Maintenance booklet matters a lot more today than it did
years ago . Audi has dev eloped a special quality st andard for engine o il
that wi ll help assure that your vehicle's engine will get the l ubrication
i t n eed s fo r proper ope ration .
Modern engine lubrication has taken a quantum leap in the last few
years . Many sy nthet ic oils available today provide bette r engine lubri ­
cat ion that can outlast t raditional petroleum- based oi ls, mak ing
them a smart choice for use throug hout the life of your Audi.
Whethe r you u se syntheti c or pet roleum-b ase d engine o il, the oil that
you use must conform to Aud i's o il quality standard VW 502 00 to
help keep you r ve hicl e's engine run ning smooth ly and help prevent ..,.
Vehicle care Do-it-yourselt service iTechnical data

___________________________________________ A_ l::.. p _h _a_ b_ e_t _ic _a_ l_ in_ d _ e_x __ nn
We ight-sensing mat .... .. .. .. . ... 232
When must the system be inspected? 217
Aircraft Transporting your vehicle .......... 353
All Wheel Drive ............ .. ...... . 257
Alloy wheels . .... .. .. .. .. .. .. ... ... 275
All-wheel drive
Winter tires ....... .. ............ 323
Alternator See Generator .................... 16
Anti-freeze See Engine coolant ...... .. .. .. ... 296
Anti -lock brake system
How the ABS system works ......... 256
Warning/indicator lights ... .. ..... . 19
Anti-Sl ip Regulation System (ASR)
How the system works . .. .. .. .. .. . 254
Anti-theft systems Anti-theft alarm system ....... ... .. 52
Electronic immobilizer ............. 41
Ashtray Front .............. ...... ........ 96
Rear ........ .. .... .. ... . .. .... .. 96
ASR How the Anti-Slip Regulation System
works ..... .. ... .. ... ... ....... 254
Audi Service Repair Manuals and Literature
361
AUTO mode AC climate control ....... .... .. .. . 106
Auto Safety Hotline ... ... ... . .. ..... 195
Auto-Check Contro l .............. .... . 26 Automatic car wash
See Washing ............... ... .. 271
Automatic Shift Lock (ASL) ... .. .. .. ... 156
Automatic transmission 6-speed automatic transm iss ion .. .. 154
Automatic Sh ift Lock (ASL) ....... .. 156
Dr iv ing ................. ...... .. 154
Dynamic shift program ......... ... 157
Emergency release for selector lever . 159
Fail-safe mode ................ ... 159
lg nition key safety lock .... ..... ... 119
Kick-down . ............ .. ....... 157
Manual shift program .. .. .. .. .. .. . 158
Selector lever ............ ........ 155
Shift buttons ... ...... .. .. .. ..... 159
Steering wheel with tiptronic ...... . 159
Average speed ........... .. .......... 36
Avoid damaging the vehicle .. ....... .. 263
B
Background lighting ... . .. .. .......... 67
Battery . .. .. .. .. .... ............... 300
Battery location inside the luggage
compartment .................. 301
Charging ........................ 303
Important warnings when working on the battery ..... ........... ...... .. 301
low . .. .. .. .. .. ...... .. ......... 258
Rep lacing the battery . ... ......... 304
State of charge ..... .. ........... 258
Winter operation . .... ... ..... .... 300
Working on the battery .... ... .. .. . 301 Before driving
.. .. ... ... ... .... ... .. 187
Blended gasoline ................. .. 283
Body cavity sealing .............. . ... 276
Booster seats ......... ............ . 239
Brake fluid
Changing the brake fluid .......... . 300
Checking the brake fluid level ....... 299
What is the correct brake fluid level?. 299
What should I do if the brake fluid warning
light comes on? . .. .. .. .......... 299
Brake system Anti-lock brake system .. ........... 19
Brake assistant .. .. .. .. .. ...... .. 256
Brake booster ........... ... ..... 256
Brake fluid .. .. .. ................ 299
Brake fluid specificat ions for refill and
repla cemen t .................. . 300
Brake light defective . .... .. .. .. .. .. 24
Brake pads ..................... . 262
Electromechanical parking brake .... 123
Fluid reservoir . .......... ... .. ... 299
How does moisture or road salt affect the
brakes? ... .. ................ .. 254
Malfunction ...................... 28
Warning/indicator lights ... .... .. .. 20
Worn brake pads symbol ........... 32
Break-in period .... . .. .............. 261
Brake pads . ... ................ .. 262
Tires ..... .................... .. 261
Bulbs ............ .... .. .... .... .. . 346
Bumper cover Caution when parking near a parking barri-er or curb . ... ................ .. 124
Automatic belt retractor .......... .. . 201 Battery voltage .. ........... ........ . 34
Controls and equip­
ment Safety first Vehicle operation
Vehicle care Do-it-yourself service Technical data