Page 253 of 340

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 fuel 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 start ing
and during warm-up . The amount of smoke
depends on the outs ide temperature.
Do not let your Diese l engine id le 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 serious engine damage and per
sonal injury.
- Never use fuel line anti-freeze offered for
gasoline engines .
0 Note
- Refueling with gasoline when your vehi
cle has a diesel engine can cause very se
rious and expens ive engine and fuel sys
tem damage that is not covered by any
A udi Limited Warranty.
- If you put any amou nt of incorrect fuel in
the fuel tank, do not start the engine un-
-
Fuel supply and filling your fuel tank 251
der any circumstances. Immediately con
tact the nearest authorized Audi dea ler
or authorized Audi Service Fac ility for as
sistance. These fuels contain substances
that can severely damage the fuel sys
tem and the engine if the engine is start
ed .
- Veh icles with diesel engines must never
be refueled or driven with gasoline, kero
sene, heating oil, or other non-specified
fuels that have not been expressly ap proved for use with the diesel engine.
Other kinds of fuel can cause serious
damage to the fuel system and the en
gine that is not covered by any Audi Lim
ited Warranty.
- If Diesel fuel should 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 fai l, you
can still open the flap manually -for detailed
instructions see¢
page 254.
You can find the fuel tank capacity of your ve
hicle inc::>
page 315.
The label on the inside of the fuel filler flap
tells you the correct fuel for your veh icle. For
more information abo ut fuel specifications,
see c::>
page 249.
Your vehicle fuel tank has an on-board refuel
ling vapor recovery system. This feature helps
to prevent fue l vapors from escaping from the
tank and pollut ing the environment while you
refuel yo ur vehicle. In order to fill the tank
properly while protecting the environment,
please follow this refueling procedure careful-
~-~
•
•
Page 314 of 340

312 Emergency situations
fall from a lift if there is a change in ve
hicle weight distribution and balance.
This might happen, for example, when
heavy components such as the engine
block or transmission are removed .
- When removing heavy components like
these, anchor vehicle to hoist or add cor
responding weights to maintain the cen
ter of gravity. Otherwise, the vehicle
might tilt or slip off the hoist, causing
serious personal injury.
(D Note
- Be aware of the following points before
lifting the vehicle:
-The vehicle should never be lifted or
jacked up from underneath the engine
oil pan, the transmission housing, the
front or rear axle or the body side
members. This could lead to serious
damage.
- To avoid damage to the underbody or
chassis frame, a rubber pad must be
inserted between the floor jack and
the lift points.
- Before driving over a workshop hoist,
check that the vehicle weight does not
exceed the permissible lifting capacity
of the hoist.
- Before driving over a workshop hoist,
ensure that there is sufficient clear
ance between the hoist and low parts
of the vehicle.
Page 317 of 340

Technical Dat a 315
Capacities
•
Fuel tank: tota l capacity gal (liters) approx. 26.4 (100) •
Windshield and headlight* washer fluid container quarts (liters) approx. 4.8 (4.5)
Gasoline engines
Q7 3.0, 6 cylinder (280 hp)
Maximum output SAE net hp@ rpm 280 @ 4900 - 6500
Maximum torque SAE net lb-ft@ rpm 295@ 2150 - 4900
Displacement CID (cm
3
) 182 .8 (2995)
Engine oil with f ilter change q
uarts ( lite rs) 7.2 (6 .8)
Fuel
Pr emium unlea ded (91 AKI), Q page 249, Fuel supply
Q7 3.0, 6 cylinder (333 hp)
Maximum output SAE net hp@ rpm
333 @ 5500 -6500
Maximum torque SAE net l
b -ft@ rpm 325@ 2900 -5300
Displacement CID (cm
3
) 182 .8 (2995)
Engine oil with filter change q
uarts (liters) 7.2 (6 .8)
Fuel Pr emium unlead ed (9 1 AKI) , Q page 249, Fuel supply
Diesel engine
Q7 3.0 TOI, 6 cylinder
Maximum outpu t SA E net hp@rpm 240@ 3500 - 4000
Maximum torque SAE net lb-ft@ rpm 406@ 1750 -2250
Displa cement CID (cm
3
) 181. 1 (2967)
Engine oil with filter change quarts (liters) 8.1 (7.7)
F uel
ULSD-Die sel No. 2 , ~ page 250, Diesel fuel