2010 AUDI Q7 Owner´s Manual

Fuel supply and filling your fuel tank
Fuel supply and filling your fuel tank
Fuel supply
Applies to vehicles : w ith gasoline eng in e
Gasoline
Using the right fuel helps keep the environment clean and
prevents engine damage.
Fuel recommendation
The fuel recommended for you r vehicle is unleaded premium grade
gasoline . See also~
page 363, "Data". Audi recommends using TOP
TIE R Detergent Gasoline with a minimum octane rating of 91 AKI (95
RON) . For more information on TOP TIER Detergent Gasoline, please
go to the official website (www.toptiergas .com).
Th e recommended gasoline octane rating for your engine can also be
found on a labe l located on the inside of the fue l filler flap. This rating
may be specified as AK I o r RON.
Your vehicle may also be operated using unleaded regular gasoline
with a minim um octane rating of 87 AKl/91 RON . However, using 87
AKl/91 RON octane fuel will slightly reduce engine performance .
Use unleaded gasoline only. Unleaded gasoline is available
throughout the USA, Canada, and in most European countries. We
recommend that you do not take your vehicle to areas or countries
where unleaded gasoline may not be availab le.
For more information on refueling your vehicle, see~
page 289.
Octane rating
Octane rating indicates a gasoline's ability to resist engine damag ing
" kno ck" caused by prematu re ignition and detonation. Therefore,
buying the correct grade of gasoline is very important to help prevent
possible engine damage and a loss of engine performance.
Safety first
Gaso line most commonly used in the United States and Canada has
the following octane ratings that can usually be found on the filler
pump:
• Premium Grade: 91 - 96 AKI
• Regular Grade: 87 - 90 AKI
E xplanation of the abb reviations :
AKI= Anti Knock Index= (R +M)/2 = (RON+MON)/2
RON= Research Octane Number
MON= Moto r Octane Number.
0 Note
• Do not use any fuel with octane ratings lower than 87 AKI or 91
RON otherwise expens ive engine damage will occur.
• Do
not use leaded gasoline . T he use of leaded gasoline w ill
seve rely damage your veh icle's cata lytic converter and its ability to
control exhaust emiss io ns. •
Ap plies t o vehicl es: w ith gasoline eng in e
Blended gasoline
Use of gasoline containing alcohol or MTBE (methyl
tert iary butyl ether)
You may use unleaded gasoline blended w ith alcohol or MTBE
(common ly referred to as oxygenates) if the blended mixture meets
the following criteria:
Blend of gasoline methanol (wood alcohol or methyl alcohol)
• Anti-knock index must be 87 AKI o r higher.
• Blend must contain no more than 3% methanol.
• Blend must contain more than 2% co-solvents .
Vehicle care Technical data

Fuel supply and filling your fuel tank
Blend of g asoline and ethanol (grain alcohol or ethyl alcohol )
• Anti-knock index must be 8 7 AKI o r higher .
• Blend must not conta in more than 10% ethanol.
Blend of gasoline and M TBE
• Anti-knoc k index must be 87 AKI o r highe r.
• Blend must conta in not more than 15% MTB E.
Sea sonally adjusted ga soline
Many gasoline grades are b lended to perform especially well for
w inte r or summer d riving. Duri ng seasonal change-ove r, we s uggest
that you fill up at busy gas stat ions where the seasonal adjus tment is
mor e likely to be made in time.
0 Note
• Methano l fuels which do not meet these requirements may cause
co rrosion and damage to plast ic and rubber component s in the fue l
system .
• Do not use fuels that fail to meet the specified c riteria in this
chapter.
• If you are unable to dete rm ine whether or not a part icu lar fuel
blend meets the specifications, ask your service stat ion or its fuel
supplier .
• Do not use f uel fo r which t he con tents cannot be iden tifie d.
• Fuel system damage and performance problems result ing from
t he use o f fuels differe nt from t hose s pecifie d are not t he responsi­
bility of Aud i and are not covered u nder the New Ve hicle o r th e Em is­
sion Cont ro l System Warranties .
• If you experience a loss of fuel economy or drivea b i lity and perfor­
m ance problems d ue to the use o f one of these fue l blends , we
recommend that you switch to unblended fuel. •
App lies to veh ic les: with gaso line eng ine
Gasoline additives
A m ajor concer n amo ng many a uto m anufa ctu rers i s ca rb o n deposi t
build-up caused by the type of gasoline you use .
Altho ugh gaso line g rades differ from one manufacturer to another,
they have certain t hings in common . All gaso line grades contai n
substances that can cause deposits to collect on vita l engine pa rts,
su ch as fue l injecto rs an d inta ke valves. A lthough mos t gaso line
brands include additives to keep eng ine and fue l systems clean, they
are not equ ally effec tive.
Audi recommends us ing TOP TIER Detergent Gasoline . Fo r more
info rmation on TOP TI ER Detergent Gasoline, p lease go to t he off ic ia l
webs ite (www .toptiergas .com) .
After an extended period of using inadequate f uels, ca rbon deposit
build -ups ca n rob your e ngine of peak perfo rma nce .
0 Note
Damage o r malfunct ion d ue to p oo r fu e l quali ty is not covered by the
Audi New Vehicle Lim ited Warranty. •
Appli es to veh icles : with diesel e ngine
Diesel fuel
A lw ays us e ULS D (U ltra Low Sulfur Di esel) sulfur content
1 5 ppm or less .
The U LSD (Ul tra Low Sulfu r Die sel) meets t he AS TM- D-97S (grade 2) .
Diesel fuel w ith a higher concentration than ULSD-Diesel No. 2
ASTM D975 and Bio-die sel with a higher concentration than 5
%
like B11, B20 or B100 are strictly prohibited .
Serv ice station fue l pumps are labe led w it h the co rrect fuel informa­
ti on fo r easy recogni tion by the user. If the diese l fuel pump is not ..,_

labeled ask the station operator what fuel is being dispensed befo re
fi lling up yo ur vehicle.
Service stations offering Diesel f uel are generally loca ted on truck
routes or major hig hways. Directo ries of Diese l fue l stations are
usually availab le at Diese l fuel stations.
Some states in t he USA require permits to purchase Diesel fuel. Check
w ith your State Mo tor Vehicle De partment.
Diesel fuel may not be available outs ide the USA and Canada. Be sure
to check before trave ling to othe r countries .
Winter operation
At t empe ratures below 20° F (- 7° C), Die sel fue l No . 2 l oses its flu idity
due to wax separation, wh ich may clog the fuel filter or tank fi lter and
keep the engine from running .
T o help t he filte r from be ing clogged by wax, the fue l fi lter in your
vehicle is automatically preheated. Preheat ing the fuel f ilter makes
operat io n of yo ur vehicle possib le with Die sel fuel No. 2 dow n to -
10° F (-24° C).
If you expect temperat ures below 5° F (-1S° C) ask yo ur fuel dealer
whether their Diesel fuel No . 2 is suffic iently w interized for the
prevailing and expected temperat ures.
If not winterized or insuff ic ie ntly w inte riz ed Diese l fuel has already
thickened to the extent that the engine w ill not start, warm the
vehicle up by leaving i t in a heated garage.
It is normal that the eng ine noise level (dieseling) is louder during the
warm-up period in winte r. It is also normal when whitish -blue smoke
comes out of t he tailpipe afte r start ing and du ring warm-up. The
amount of smoke depends on the outside temperature .
Do not let your Diesel engine idle unnecessa rily af ter a co ld start.
Dr iv ing off slow ly w ill shorten the warm-up per iod.
Safety first
Fuel supply and filling your fuel tank
& WARNING
• Never use "starting as sist flu ids ." Th ey may be potentially
explo sive or cause a "run-away " engine condition . Thi s could
re sult in s eriou s engine damage and per sonal injury .
• Never u se fuel line anti -freeze off ered fo r ga soline engine s.
0 Note
• Your D iesel eng ine has been spec ifically desig ned to ope rate on ly
on Ultra Low Sulfur Diesel fue l. Therefore, never use home heating o il
or reg ular gasoline . The properties of these fuels may cause serious
damage to the fuel injection system and to t he engine . Using these
fue ls can cause expens ive eng ine repairs and will also adversely affect
your New Vehicle Lim ited Wa rranty.
• If Diese l fuel shou ld get on any rubber hose, it must be wiped off
immediately. Then wash the contaminated hose port ion w ith soap
and warm water . Do not allow Diesel fue l to remain on connecting
hoses. They may deve lop leaks and cause se rious damage. •
Fuel tank
Fuel filler neck
The f ue l fi ller neck is located o n the rig ht rea r side panel behind t he
fue l filler flap.
If the power locking system shou ld fai l, you can st ill open the flap
ma nually- for deta iled instructions see:::::>
page 292.
You can find the fue l tank capacity of your veh icle in
Technical Data
:::::, page 3 63.
The label on the inside of t he fuel filler flap tells you the correct fuel
for your veh icle. For more informat ion about fuel specifications, see
:::::>
page 287 . _,,
Vehicle care Technical data

Fuel supply and filling your fuel tank
Your vehicle fuel tank has an on-board refuelling vapor recovery
system . This feature helps to prevent fuel vapors from escaping from
the tank and polluting the environment while you refuel your vehicle.
In order to f ill the tank properly while protecting the environment,
please follow this refueling procedure carefully.
& WARNING
Under normal operating conditions, never carry additional fuel
containers in your car. Gas canisters and other containers used to
transport fuel can be dangerous. Such containers, full or empty,
may leak and could cause a fire in a collision. If you must transport
fuel to use for your lawn mower, snow blower, etc., be very careful
and always observe local and state laws regarding the use, trans­
portation and storage of such fuel containers. Make certain the
container meets industry standards (ANSI/ASTM F852 -86) .
0 Note
Never drive your vehicle until the fuel tank is completely empty. The
ir regular supply of fue l can cause misfiring. Gasoline could enter the
exhaust system and damage the catalytic converter. •
Refuelling
Fig. 222 Right rear
vehicle side : O pening
t he fuel filler flap Fig
. 223 Fuel cap
hooked on the opened
f ue l filler flap
When adding fuel, the ignition and any cellular phones in the
vehicle must be switched
off. When activating the central
locking, the fuel filler flap is automatically unlocked or
locked . Refuel the vehicle with the ignit ion turned
off .
Taking the fuel cap off
-To open the fuel filler flap, press on the left side of the
flap ~ fig. 222 -arrow- .
- Unscrew fuel filler cap counter-clockwise and hang it on
the fuel filler flap~ fig. 223.
- Check the label on the inside of the fuel filler flap to deter­
mine if the vehicle must be fueled with gasoline or diesel
fuel.
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 fi ller cap c lockwise as
f ar as it w ill go.
- Close t he fue l fi ller flap.
To avoid fuel spi lling or evapo rating from the f uel tank a lways close
fue l filler cap properly and comp lete ly . An impro perly closed fuel
filler cap may also ca use the MIL lamp~
page 26 to come on (only
vehicle s wi th gaso lin e e ngine).
& WARNING
Improper refueling or handling of fuel can cause fire, explosion
and severe burns .
• Fuel i s 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 n eck or to overflow. Fuel spray and ov erflowing
fuel can cause a fire.
• Never use a cellular telephone while refueling. The electromag­
netic radiation can cau se sparks that can ignite fuel vapors and
cause a fire.
• Never get back into your vehicle while refueling. If in excep­
tional cir cumstan ces you must get ba ck in your v ehicle 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 vapo rs
released during refueling.
• Never smoke or have an open flame anywhere in o r near your
vehicle when refueling or filling a portable fue l 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 cau se a fire , especially in a crash.
Safety first
Fuel supply and filling your fuel tank
& WARNING (co ntinued )
• If, under exceptional circumstances , you must tran sport 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 completel y 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 ele ctricity from discharging and cause a fire .
- Ne ver spill fuel inside the vehicle or luggage compartment .
Fuel vapor s are highly flammable.
- Always observe local and state /provincial laws regarding the
use, storage and tran sportation of fuel containers .
-Make certain the fuel container meets industry standards
( ANSI / ASTM F852-86 ).
0 Note
If any f uel has spilled o nto the ca r, it should be remove d immed iate ly
to prevent damage to the paint.
As soon as the co rrectly ope rated no zzle switches off a utomat ica lly
f or t he firs t time, the t ank i s full. Do no t try to ad d mo re fuel bec ause
fue l may spill out. In addition, the expansion space in the fuel tank
w ill be fi lled -caus ing the fue l to overf low when it becomes wa rm and
poll ute the enviro nment . .,_
Vehicle care Technical data

Fuel supply and filling your fuel tank
(I) Tips
• Runn ing your eng ine while refuelling may cause vapors to escape
or even cause fuel to spill out of the tank. This would then shut off the
fuel nozzle before the tank is full.
• Do not refuel your vehicle with the ignition turned on. The fuel
gauge may otherwise not ind icate the correct fuel level after refuel­
ling.
• Diesel vehicles* are equipped w ith a mechanism to prevent incor­
rect fueling. They can only be fueled with diesel pump nozzles. A
worn, damaged, or improperly specified nozz le may not allow this
mechanism to open, thereby preventing refueling. If you cannot
insert the pump nozzle, rotate it in the tank opening. This should
open the mechanism and allow refueling. •
Unlocking the fuel filler flap by hand
You can open the fuel filler flap by hand if the power
locking system should fail.
•
Fig. 224 Luggage
compartment: Prying
cover open Fig. 225
Luggage
compartment: Emer­
gency opening of fuel
fille r flap
- Remove the right -s id e trim panel with the aid of a screw ­
driver => fig. 224.
- Pull the loop down in the direc tion of the arro w to unlock
the fuel filler flap=> fig . 225. •
TDI clean diesel
App lies to veh icles: w ith diese l eng ine
General information
On TOI clean diesel vehicles, an urea solution (AdBlue®) is injected
into the exhaust system before a specia l catalytic converter to reduce
nitrogen emissions.
The Ad Blue is stored in a separate tank in the vehicle and f illed during
maintenance intervals. Under norma l driving conditions, there will be
enough Ad Blue to last from one maintenance interval to the next.
Because of this, the scheduled maintenance intervals should always
be followed.
The Ad Blue usage accounts for approximately 0.5% to 1 % of the
diesel fuel that is us ed. The Ad Blue tank capacity is approximately 6
gallons (23 liters). ..,_

If Ad Blue usage increases due to individual driving style, the driver
must add AdBlue between scheduled maintenance intervals
=>page 294 .
& WARNING
Failure to heed Ad Blue refill information in the instrument cluster
can prevent the vehicle from being started and driven . If the
vehicle cannot be driven and an emergency arises, personal injury
can occur.
• Always have the Ad Blue tank refilled well before the tank runs
dry.
[ i J Tips
• If the Ad Blue tank is completely empty, the engine w ill not start
agai n after the igni tion is sw itched off. The instrument cluster display
indicates the distance remaining that can be driven=>
page 293.
• Ad Blue is required by law to operate this vehicle.
• AdBlue ® is a registered trademark of the Registered Automob ile
Association (Verband der Automobilindustrie e . V. -VOA). •
Safety first
Fuel supply and filling your fuel tank
App lies to ve hicles : w ith d iese l eng ine
Indicator in the instrument cluster display
The display indicates if the Ad Blue level is low or if it was
filled incorrectly .
AdBlue level low
Fig. 226 Instrument
cluster: indicator in the
display
You will be informed if the Ad Blue in the tank drops below a certain
level.
Ad Blue /9 1500 mi (2400 km) Refill AdBlue.
This indicator appears when there is only enough Ad Blue left to drive
the distance indicated in the driver information system. You will hear
a warning s ignal. Please add Ad Blue.
... 0C_ .c Refill Ad Blue ! No restart in 600
miles (1000 km)
!
Th is indicator appears when there is only enough Ad Blue left to drive
the distance indicated in the driver informat ion system . You will also
hear a warning signal. Please add Ad Blue . Otherw ise the engine w ill
not start again if you stop it once the distance indicated has been
dr iven .
AdBlue 19 0 mi (0 km) Refill Ad Blue ! No restart !
Thi s message appears when the Ad Blue tank is empty. You will also
hear three warning signals in a row. Please add Ad Blue. Otherwise you
wi ll not be able to start the engine again once you stop it . ._
Vehicle care Technical data

Fuel supply and filling your fuel tank
When the minimum Ad Blue level has been reached, you must add at
least 1 gallon (3.8 liters) . This is equal to two bott les from the refill
conta iner available from authorized dealers=>
page 294. This is the
minimum amount required to ensure the system detects the refilling
and to start the engine .
Filling incorrectly
If the Ad Blue tank was filled with a different fluid than Ad Blue and
the system detects that it is incorrect, you will be notified as follows:
1 , I 110 J Check AdBlue ! No restart
in 600
miles (1000 km)
!
This message appears when it is only possible to drive the distance
indicated in the driver information system . You will also hear a
warning signal. Drive to the nearest qualified workshop to have the
malfunction repaired. Otherwise the engine will not start again if you
stop it once the distance indicated has been driven .
Ad Blue ,0 0 mi (0 km) Check Ad Blue ! No restart !
This message appears if the system detects it was filled incorrectly.
You will also hear three warning signals in a row. Drive immediately
to the nearest qualified workshop to have the malfunction repaired.
Otherwise you will not be able to start the engine again once you stop
it .•
A pp lies to vehicles : w ith diesel engine
Filling AdBlue
A special refill bottle must be used to fill the Ad Blue.
Fig . 227 Right rear
vehicle side: removing
the AdBlue cap
Fig . 228 Ad Blue filler
tube: inserting the refill bottle
The filler flap automatically unlocks or locks when the central
locking system is operated. The Ad Blue filler tube is located
at the right near the diesel filler tube.
Opening the filler tube and adding AdBlue
-Press the left side of the fuel filler flap to open it
=> page 290, fig. 222 -arrow- .
- Turn the cap counterclockwise with the lug wrench from
the vehicle tool ki t to remove it~ fig. 227.
~