fuel pump AUDI S8 2008 Owners Manual

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Fuel supply and filling your fuel tank
Gasoline
Fuel supply
Using the right fuel helps keep the environment clean and
prevents engine damage.
F u e l re comm end ati on
The fuel recommended for your veh ic le is unle ad ed pr em ium grade
gaso line . See
a lso => page 378, "Data". Audi recommends using TOP
T IER Detergent Gaso line with a minimum octane rating of 91 AKI (95
RON). For more informat io n on TOP TIER Detergent Gaso line, please
go to the official website (www .toptiergas .com).
The recommended gasoline octane rating for your engine can also be found on a label located on the i nside of the fuel fi ller flap. This
rating may be specified as A KI or RON .
You r veh ic le may also be operated us ing unleaded regular gasoline
with a minimum octane rating of 87 AKl/91 RO N. However , using 87
A Kl /9 1 RON octane fuel w ill sl ightly reduce engine performance.
U se unleaded ga solin e only . Unleaded gaso line is avai lable
throughout the USA, Canada, and in most European countries. We
recommend that you do not ta ke your vehicle to areas or countr ies
where un le aded gasoline may not be available .
For more i nformation on refuel ing yo ur ve hicle,
see => page 302.
Octan e rating
Octane rating indicates a gaso line's abil ity to res ist engine
damaging "knock" caused by premature ign ition and detonation.
Therefore, buying t he correct grade of gaso line is very important to
help prevent possible engine damage and a loss of engine perfor ­
mance.
Fu el supply and fillin g yo ur fu el tank
Gasol ine most common ly used in the United States and Canada has
the fo llowing octane ratings that can usua lly be found on the fil ler
pump :
• P remium Grade : 91
-96 AKI
• Regu lar Grade: 87
-90 AK I
E xplanation of t he abbrev iat ions:
AKI = Anti Knoc k Ind ex = (R +M)/2 = (RON +MON)/2
RON = Research Octane Number
MON = M otor Octane Number .
0 Note
• Do not use any fue l wi th octane rati ngs lower than 87 AKI or 91
RON otherwise expensive engine damage wi ll occur .
• D o
not use leaded gasoline. The use of leaded gasoline w ill
severe ly damage your vehicle 's catalytic convert er and its abi lity to
co ntr ol ex haust emissi ons .•
Blended gasoline
Use of ga soline containing alc ohol or MTBE (methyl
terti ary but yl ether )
You may use unleaded gaso line blended with alcohol or MTBE
(commonly referred to as oxygenates) if the blended mixture meets
t he fo llow ing criteria:
Blend of ga soline methanol (wood alcohol or methyl al cohol)
• Anti-knock index must be 87 AK I or higher .
• Blend m ust contain no more tha n 3% methanol.
• Blend m ust contain more than 2% co -solvents.
Vehicle care

Fuel supply and filling your fuel tank
Refuelling procedure
- Insert the fuel nozzle from the gasoline pump into the
fuel filler neck as far as it will go.
- Select a medium refuelling rate so that the nozzle switches off automatically when the tank is full.
Putting the fuel cap back on
-After filling your tank, twist the fuel filler cap clockwise
until you hear a definite click.
- Close the fuel filler flap.
To avoid fuel spilling or evaporating from the fuel tank always close
fuel filler cap properly and completely. An improperly closed fuel
filler cap may also cause the MIL
lamp=> page 27 to come on.
& WARNING
Improper refueling or handling of fuel can cause fire, explosion
and severe burns.
• Fuel is highly flammable and can cause severe burns and other
injuries.
• Failure to shut the engine off while refueling and/or to insert
the pump nozzle fully into the fuel filler neck could cause fuel to spray out of filler neck or to overflow. Fuel spray and overflowing
fuel can cause a fire.
• Never use a cellular telephone while refueling. The electromag­
netic radiation can cause sparks that can ignite fuel vapors and
cause a fire.
• Never get back into your vehicle while refueling. If in excep ­
tional circumstances you must get back in your vehicle while refu­
eling, make certain that you close the door and touch metal to
discharge static electricity before touching the filler nozzle again.
Static electricity can cause sparks that can ignite fuel vapors
released during refueling .
& WARNING (continued)
• Never smoke or have an open flame anywhere in or near your
vehicle when refueling or filling a portable fuel container.
• For your safety, we strongly recommend that you do not travel
with a portable fuel container in your vehicle. The container, full or
empty may leak and could cause a fire, especially in a crash.
• If, under exceptional circumstances, you must transport a
portable fuel container, please observe the following:
-Never fill a portable fuel container while it is anywhere in or
on the vehicle (for example, in the luggage compartment, or on
the trunk). Static electricity can build up while filling and can
ignite fuel vapors causing a fire.
- Always place a portable fuel container on the ground before
filling.
- Always keep the filler nozzle completely inside the portable
container before and during filling.
- If filling a portable container made of metal, the filler nozzle
must always be in contact with the container. This will help
prevent static electricity from discharging and cause a fire.
- Never spill fuel inside the vehicle or luggage compartment. Fuel vapors are highly flammable .
- Always observe local and state/provincial laws regarding the
use, storage and transportation of fuel containers.
- Make certain the fuel container meets industry standards
(ANSI / ASTM F852-86).
0 Note
If any fuel has spilled onto the car, it should be removed immedi-
ately to prevent damage to the paint.
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_________________________________________________ F_ u_ s_ e_s _ a_n _d_ b_ u
_ lb_ s _ __,_
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No . II Equipm ent
8 Engine control, auxiliary water pump
9
10 C
limate control front /rear, dash panel buttons
Suspension level control system
(Adaptive Air Suspension)
11 Light and rain sensor
1 2 Display -/control unit
13 Roof electronics control unit
CD/DVD d rive
15 Energy managemen t
16 Vacant
17 Radiator fan e lectronics
18 Airbag front passenger recognition
(weight sensor)
19 Vacant
20 Heated/ventilated seats
21 Engine control module
22 Vacant
23 Parking brake (switch)
24 Vehicle electrical syste m
25
26
27
Automatic transmission Air condi tioning water valves wate r pump,
rea r climate control
Sunroof
28 Engine control module
29 Fuel injectors
30 Ignition coils
Amps
10
5
1 0
5
5
10
5
5
5
5
5
5
5
1 0
15
10
20
5
1 5
30
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No . Equipm ent
31 Fuel pump , right/fue l pump e lectronics
32 Automatic transmission
33
34
Right rear footwe ll heater
Heated/ventila ted seats, rear
35 Heated/ventilated seats, front
36 Cigarette lighter, front
37 Cigarette lighter, rear/socket, rear
38 Auxil iary cooler fan
39 Door contro l unit, front right
40 Brake booster
41 Door contro l unit, rear right
42 Vacant
43 Headlight washer system
44 A ir co nditioning heater fan
Amps
20/40
5
25
20
20
20
20/25 20
7.5
1 5
7.5
30
30 •
Fuse Location , Luggage Compartment left
0
Fig . 2 95 Fuse pan el
l a you t _.
Vehicle care Do-it-yourself service irechnical data

111!1....__F_ u_ s_ e_s _ a_n _ d_ b_ u_lb _ s _______________________________________________ _
No. Equipment Amps
1
Vacant
2 Vacant
3 Vacant
4 Vacant
5 Digital sound system control module 30
6 Navigation 5
7
TV Tuner 10
8 Rear -view camera 5
9 Communications box 5
10 Subwoofer in rear window shelf (BOSE)/ 15/30 Amplifier (Bang & Olufsen)
--
1 1 Socket 20
12
Vacant
Fuse Location, Luggage Compartment right
Fig. 296 Fuse pan el
l a y out
I
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N o. Equipm ent Amps
1
Vacant
2 Fuel pump, left 20
3 Vacant
4 Vacant
5 Central control module for comfort system 20 (left light)
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6 Central control module for comfo rt system 10 (right light)
Central control module for comfort system 7 (door closing) 20
8 Electronic parking brake control module, left 30
9 Electronic parking brake control module, right 30
Vacant
11 Vacant
12 Vacant
Bulbs
Replacing light bulbs
For your safety, we recommend that you have your autho­
rized Audi dealer replace burned out bulbs for you.
It is becoming increasing ly more and more difficult to replace
vehic le light bulbs since in many cases, other parts of the car must
first be removed before you are able to get to the bu lb. This applies
especially to the light bulbs in the front of your car which you can
only reach through the engine compartment.
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Sheet metal and bulb holders can have sharp edges that can cause
serious cuts, and parts must be correctly taken apart and then prop -
...