2012 AUDI Q7 open gas tank

252 Fuel supply and filling your fuel tank
Winter operation
At temperatures below 20° F (-7° C), Diesel
fuel No.
2 loses its fluidity due to wax separa­
tion, which may clog the fuel filter or tank fil­
ter and keep the engine from running .
To help the filter from being clogged by wax,
the fue l filter in your vehicle is automatically
preheated. Preheating the fuel filter makes
operation of your vehicle possible with Diesel
fuel No. 2 down to -10° F (-24° C).
If you expect temperatures below
5° F
(-15° C)
ask your fuel dealer whether their
Diese l fuel No.
2 is sufficiently winterized for
the prevailing and expected temperatures.
If not winterized or insufficiently winterized
Diesel fuel has already thickened to the extent
that the engine will not start, warm the vehi­
cle up by leaving it in a heated garage.
It is normal that the engine noise leve l (die­
seling) is louder during the warm-up period in
winter. It is also norma l when whitish-blue
smoke comes out of the tailpipe after starting
and during warm-up . The amount of smoke
depends on the outs ide temperature.
Do not let your Diese l engine idle unnecessari ­
ly after a cold start. Driving off slowly will
shorten the warm-up period.
A WARNING
- Never use "starting assist fluids." They
may be potent ially explosive or cause a
"run-away" engine condition. This could
result in ser ious engine damage and per­
sonal injur y.
- Never use fuel line anti-freeze offered for
gasoline engines.
(D Note
- Your Diesel engine has been specifically designed to operate only on Ultra Low
Sulfur Diesel fuel. Therefore, never use
home heating oil or regular gasoline. The
properties of these fuels may cause seri­
ous damage to the fuel injection system
and to the engine. Using these fuels can
-
cause expensive engine repairs and will
also adversely affect your New Vehicle
Limited Warranty.
- If Diesel fuel sho uld get on any rubber
hose, it must be wiped off immediately.
Then wash the contaminated hose por­
tion with soap and warm water. Do not allow D iesel fuel to remain on connect­
ing hoses . They may develop leaks and
cause serious damage.
Fuel tank
Fuel filler neck
The fuel filler neck is located on the right rear
side panel behind the fuel filler flap.
If the power locking system shou ld fail, you
can still open the flap manua lly -for detailed
instructions see
¢page 255.
You can find the fuel tank capacity of your ve­
hicle in
Technical Data ¢page 316 .
The label on the inside of the fuel filler flap
te lls you the correct fuel for your vehicle. For
more information about fuel specifications,
see ¢
page 250.
Your vehicle fuel tank has an on-board refuel­
ling vapo r recovery system. This feature helps
to prevent fue l vapors from escaping from the
tank and polluting the environment while you refuel your vehicle. In order to fi ll the tank
proper ly while protecting the environment,
please fo llow this refueling procedure careful­
ly.
A WARNING
-Under normal operating conditions, never
carry addit ional fuel conta iners in your car .
Gas canisters and other conta iners used to
transport fuel can be dangerous. Such con­
tainers, 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 b lower, etc., be very careful and al ­
ways observe loca l and state laws regard­
ing the use, transportation and storage of
such fuel containers. Make certain the ..,.

container meets industry standards (ANSI/
ASTM F852 -86).
(D Note
Never drive yo ur vehicle unt il the fuel tank
is complete ly empty. The irregular supply
of fuel can cause misfiring . Gasoline could
enter the exhaust system and damage the
catalyt ic converter.
Refuelling
F ig. 220 Righ t rear vehicle side: Opening th e fue l fill er
flap
F ig. 221 Fu el cap hooked on the opened fuel filler flap
When adding fuel, the ignition and any cellu­
lar phones in the vehicle must be sw itched
off. When activating the central locking, the
fuel filler flap is automatica lly unlocked or
locked. Refuel the ve hicle w ith the ignition
turned
off.
Tak ing th e fu el cap off
• To open the fuel filler flap, press on the left
s ide of the flap¢
fig. 220 -arrow- .
• Unscrew fuel fil ler cap counter-clockwise
and hang it on the fuel fille r flap ¢
fig. 221.
• Check the label on the inside o f the f uel fill­
er flap to determine if the vehicle must be
fueled with gasoline or diesel fuel.
Fuel suppl y and filli ng your fuel t ank 25 3
Refuelling p ro cedur e
• Insert the fuel nozz le from the gasoline
pump into the fuel fi ller neck as far as it wi ll
go .
• Select a medi um refue lling rate so that the
nozz le switches off automatically when the
tank is full.
Pu tting th e fuel cap bac k on
• After fi lling your tank, twist the fuel filler
cap clockwise as far as it wi ll go.
• Close the fue l filler flap.
T o avoid fuel spill ing or evaporating from the
fuel tank always close fuel filler cap proper ly
and completely. An improperly closed fuel fill­
er cap may also cause the MIL lamp¢
page 2 7
to come on (only vehicles with gasoline en­
gine).
A 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 injur ies.
- Failure to shut the engine off wh ile refu­
eling and/or to insert the pump nozzle
fully into the fuel filler neck could cause
fue l to spray out of filler neck or to over­
f low. Fue l spray and overflowing fue l can
cause a fi re.
- Never use a cel lu lar telephone while re­
fueling. The electromagnetic rad iation
can cause sparks that can ignite f uel va­
pors and cause a fire.
- Never get back into your vehicle whi le re­
fueling. If in exceptional circumstances
you must get back in your vehicle while
refueling, make certain that you close
the door and touch metal to discharge
stat ic electricity before touching the fill­
er nozzle again. Static e lectricity can
cause sparks that can ignite fuel vapors re leased du ring refuel ing .
- Never smoke or have an open flame any­
where in or near your veh icle when refu-
eling or filling a portab le fue l conta iner.
ll>

330 Index
For the sake of the environment
Gasoline fumes and the environment .. 253
Lett ing your engine warm up ... .. .. . 106
Reducing engine noise by early upshift-
ing .. .. .. .... ............. .. .... .. 10
Refueling .. ................ ... ... 253
Saving fuel by early upshift ing .. .. .. . . 10
Using the rear window defogger . . . . . . . 95
Four- zone automatic comfort air cond i-
tioning .. .. .. ............... .. .... .. 97
Automatic mode in rear . . . . . . . . . . . . . . 98
H eated rear seats .. ....... .. .. .. .. . 10 1
Rear a ir distribution ........... .. .... 99
Rear controls . . . . . . . . . . . . . . . . . . . . . . 97
Rear fan . .. ............. .. .. .. .. .. 98
Rear operat ion . ... ...... ... .. .... . 100
Rear temperature . ..... ... .. .. .... .. 98
Synchronization .. ..... ... .. .. .... . 100
Turn ing on/off ..................... 98
F ront airbags
Descr ipt ion ............ .. .. .. .. .. . 183
How they work . .. ..... ... .. .. .... . 188
Fronta l co llisions and the laws of physics 17 1
Front fog lights . . . . . . . . . . . . . . . . . . . . . . 58
Fr ont seats . . . . . . . . . . . . . . . . . . . . . . . . . 71
Ad justing . .... .. ..... ... .. .. .... . 162
Child restraints in the front seat ..... . 181
Fue l
Addit ives . .... ........... .... .... . 250
Blended gasoline .................. 250
Consumption . . . . . . . . . . . . . . . . . . . . . . 24
F ill er neck . .... . ...... ... ... ..... . 252
F ue l gauge .. .. .. ..... ... .. .. .... .. 12
Gasoline . .. ............. .. .. .. ... 250
Gasoline additives .......... .. .... . 251
Low fuel level . . . . . . . . . . . . . . . . . . 12, 35
Octane rating ................. .... 250
Recommendation ... ...... .. .. .. .. . 250
Refue lling ..... ......... ... .. .. .. . 253
Reserve .. .... ........... .... .... .. 12
Tank capacity ............ .. .. .... . 316
Un locking the fuel f iller flap by hand .. 255
Fuel economy messages (eff iciency pro-
gram) . .. .. ... ....... ........ ..... .. 27
Fuse arrangement ......... .... .... . 303 G
Garage doo r opener ( Homelink ®) . . . . . . 156
Gas discha rge lamps ..... ....... ... .. 306
Gauges Engine coolant temperature . . . . . . . . . . 10
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . 12
Speedometer .. .................... 12
T achometer . . . . . . . . . . . . . . . . . . . . . . . 11
T rip odometer . .. ................ .. 12
General illustration Instruments and controls ............. 8
General rules and driving tips ... .. .. .. 232
Before driving offroad .. ..... ... .. .. 232
Driving offroad ... .. .... .... ... .. .. 232
G lossary of tire and loading terminology 275
G love compartment .................. 88
Cooling box . . . . . . . . . . . . . . . . . . . . . . . . 88
Valet key funct ion ..... ....... ... .. . 41
G love compartment -emergency unlock-
ing ................................ 88
G low p lug system
Ind icator light ... .. ... ..... ... .. .. . 15
Gradient angle ..................... 232
Gross Vehicle Weight Rating (GVWR) ... 314
G ro u nd clearance 232
H
Headlights . .. .. .. ............. .. .. . 57
Adaptive light . . . . . . . . . . . . . . . . . . . . . . 59
Defec tive . . . . . . . . . . . . . . . . . . . . . . . . . 23
F ront fog lights . . . . . . . . . . . . . . . . . . . . 58
Headlight range control ... ... ... . .. . 36
Switching off .... ... .. ..... ... .. .. . 57
Switching on . . . . . . . . . . . . . . . . . . . . . . . 57
Washer system . . . . . . . . . . . . . . . . . . . . . 66
Xenon headlights ................. .. 57
Head light washer reservoir .. ... .. .. .. 273
Head restra ints .. .. ............. .... 163
Adjusting . . . . . . . . . . . . . . . . . . . . . . . . 163
Front se ats . . . . . . . . . . . . . . . . . . . . . . . . 76
Rear seats . . . . . . . . . . . . . . . . . . . . . . . . . 77
Heated Exterior mirrors . . . . . . . . . . . . . . . . . . . . 68
Fron t seats .. .. .. ... .......... .... 100
Rear seats . .. .. .. ............. .. .. 101