2014 AUDI Q7 engine

have become completely familiar with the way
your vehicle-trailer combination behaves and responds.
Backing up is difficu lt and requires practice.
Backing up with a trai ler genera lly requires
steering action opposite to that when backing up your vehicle without a trailer .
Maintain a greater distance between your ve­
hicle and the one in front of you. You will need
more room to stop . To compensate for the
trai ler, you will need a larger than norma l
turning radius.
When passing, remember that you cannot ac ­
celerate as fast as you normally would be ­
cause of the added load . Make sure you have
enough room to pass. After passing, allow plenty of room for your tra iler before chang­
ing lanes again .
Avoid jerky starts, sharp turns or rapid lane
changes.
@ Tips
- Do not tow a traile r during the break-in
period of your vehicle.
- If you tow a trailer, your A udi may re­
quire more frequent maintenance due to
the extra load
<=> page 316.
Parking on a slope
Do not park on a slope with a trailer. If it can­
not be avoided, do so only after doing the fol­
lowing:
When parking:
.. Apply the foot brake .
.. Have someone place chocks under both the
vehicle and the trai ler wheels .
.. With chocks in place, slowly re lease the
brakes until the wheel chocks absorb the
load .
.. Turn the wheels towards the curb .
.. Apply the parking brake .
.. Move the selector lever to P.
When restarting after parking:
.. Apply the foot brake.
Trailer towing 243
.. Start the engine.
.. Move the selector lever to D.
.. Release the parking brake and s low ly pull
out and away from the wheel chocks.
.. Stop and have someone retr ieve the wheel
chocks.
(D Tips
If you move the selector lever of the auto­
matic transmission to P before applying
the parking brake and before blocking the
whee ls, you may have to use more force
l ater to move the lever out of the
P posi­
tion.
•
•

Fuel supply and filling
your f uel tank
Fuel supply
Gasoline
Applies to vehicles: with gasoline engine
Using the right fuel helps keep the environ ­
men t clean and preven ts engine damage.
Fuel recommendation
The fuel recomme nded fo r yo ur vehicle is un­
leaded premium
grade gasoline . A udi recom­
mends using TO P TIE R D etergent Gaso line
w it h a m ini m um oc tane ra ting of 91 A KI (9 5
RON ). For more inform ation on TOP TIER De­
tergent Gasoline, please go to the off ici al
websi te (www .to pt iergas .com) .
T he recommended gasoline octane rating for
your eng ine can also be fo und o n a label loc at­
ed o n the ins ide of the fuel filler flap . This ra t­
i ng may be specified as AK I or RO N.
Your veh icle may also be operate d using un­
l ea ded regular gasoline with a min imu m oc­
tane rating of 87 AKI/91 RO N. However, using
87 AK I/91 RON octa ne f ue l w ill sli ghtly re ­
d uce eng ine perfo rmance .
Use unleaded gasoline only . Unleaded gaso­
line is available th rougho ut the USA, Canada,
an d in most E uropean cou ntries . We recom ­
mend that you do not ta ke yo ur vehicle to
areas or countries where unleaded gasoline
may not be ava ilable.
F or more informat io n on refue ling your ve hi­
cle, see
q page 251.
Octane rating
Octane r ating ind icates a gaso line' s ability to
r es is t engine d am ag in g "kno ck" c aused by
p remature ign ition and detona tion. Therefore,
buy ing the correct grade of gaso line is very
importa nt to he lp prevent possible engine
damage and a loss o f engine performance.
G asoline mos t commonly used in the Unite d
States an d Canada has the following octane
Fuel supply and filling your fuel tank 249
rat in g s that can usu a lly be found on the fi ller
pump :
- Premium Gr ade: 9 1 -96 AKI
- Regular Grade: 87 - 90 AKI Explanation of the abbreviations:
AKI = Anti K nock In d ex = (R+M )/2 = (RO N
+MON )/2
RON= Resear ch O ctane Num ber
MO N = Motor Octane Number.
(D Note
- Do not use any fue l w ith octane rat ings
lower than 87 A KI or 9 1 RO N othe rwise
e xpensive engi ne damage w ill occur.
- Do
not use leaded gasoli ne . The use of
leaded gasoline w ill severely damage
yo ur vehicl e's cata lytic conve rter a nd its
abi lity to control exh aust em issions.
Blended gasoline
App lies to vehicles: wi th gaso line engine
Use of gasoline containing alcohol or
MTBE (methyl tertiary butyl ether)
You m ay use unlea ded gasoline blen ded wi th
alcohol o r M TB E (commonly referred to as
oxygenates) if the blende d mixture meets the
f o llow ing criteria:
Blend of gasoline methanol (wood alcohol or
methyl alcohol)
- Anti -k n ock index mus t be 87 A KI or higher.
- Blend must contain no mor e than 3% meth-
anol.
- Blend must contain more than 2% co-sol-
vents .
Blend of gasoline and ethanol (grain alcohol
or ethyl alcohol)
- Anti -knoc k index must be 87 AKI or h igher.
- Blend must not co nta in mo re tha n 10 %
ethanol.
Blend of ga soline and MTBE
- Anti-knock index must be 87 AKI or high er. ..,.
•
•

250 Fuel supply and filling your fuel tank
-Blend must contain not more than 15%
MTBE.
Seasonally adjusted gasoline
Many gasoline grades are blended to perform
especially well for winter or summer driving. During seasonal change-over, we suggest that
you fill up at busy gas stations where the sea­
sonal adjustment is more likely to be made in
time.
(CT) Note
- Methanol fuels which do not meet these
requirements may cause corrosion and
damage to plastic and rubber compo­
nents in the fuel system.
- Do not use fuels that fail to meet the
specified criteria in this chapter.
- If you are unable to determine whether
or not a particular fuel blend meets the
specifications, ask your service station or
its fuel supplier.
- Do not use fuel for which the contents cannot be identified.
- Fuel system damage and performance
problems resulting from the use of fuels
different from those specified are not
the responsibility of Audi and are not
covered under the New Vehicle or the
Emission Control System Warranties.
- If you experience a loss of fuel economy
or driveability and performance prob­ lems due to the use of one of these fuel
blends, we recommend that you switch
to unblended fuel.
Gasoline additives
Applies to vehicles: with gasoline engine
A major concern among many auto manufac­
turers is carbon deposit build-up caused by
the type of gasoline you use.
Although gasoline grades differ from one manufacturer to another, they have certain
things in common. All gasoline grades contain
substances that can cause deposits to collect
on vital engine parts, such as fuel injectors
and intake valves. Although most gasoline brands include additives to keep engine and
fuel systems clean, they are not equally effec­
tive.
Audi recommends using TOP TIER Detergent
Gasoline. For more information on TOP TIER
Detergent Gasoline, please go to the official
website (www.toptiergas.com).
After an extended period of using inadequate
fuels, carbon deposit build-ups can rob your
engine of peak performance.
(D Note
Damage or malfunction due to poor fuel
quality is not covered by the Audi New Ve­
hicle Limited Warranty.
Diesel fuel
Applies to vehicles: with diesel engine
Always use ULSD (Ultra Low Sulfur Diesel) sul­
fur content 15 ppm or less.
The ULSD (Ultra Low Sulfur Diesel) meets the
ASTM-D-975 (grade 2).
Diesel fuel with a higher concentration than
ULSD-Diesel No. 2 ASTM D975 and Bio-die­
sel with a higher concentration than 5
% like
811, 820 or 8100 are strictly prohibited.
Service station fuel pumps are labeled with
the correct fuel information for easy recogni­
tion by the user. If the diesel fuel pump is not
labeled ask the station operator what fuel is
being dispensed before filling up your vehicle.
Service stations offering Diesel fuel are gener­
ally located on truck routes or major high­
ways. Directories of Diesel fuel stations are usually available at Diesel fuel stations.
Some states in the USA require permits to
purchase Diesel fuel. Check with your State
Motor Vehicle Department.
Diesel fuel may not be available outside the
USA and Canada. Be sure to check before trav-
eling to other countries.
ll-

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-
~-~
•
•

252 Fuel supply and filling your fuel tank
_&. 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 con­
tainers, full or empty, may leak and could
cause afire in a collision. If you must
transport fuel to use for your lawn mower,
snow blower, etc., be very careful and al­
ways observe local and state laws regard­
ing the use, transportat ion and storage of
such fuel containers. Make certain the con­
tainer meets industry standards (ANSI/
ASTM F8S2 -86).
(D Note
Never drive your vehicle until the fuel tank
is completely empty. The irregular supp ly
of fuel can cause misfiring . Gasoline could
enter the exhaust system and damage the
catalyt ic converter.
Refuelling
Fig . 232 Right rear vehicle side : Open ing t he fue l filler
fl ap
Fig. 233 Fu el cap hooked on the opened fue l filler fl ap
When adding fuel, the ignition and any cellu­
lar 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 ignition
turned
off.
Taking the fuel cap off
.,. To open the fue l filler f lap, press on the left
side of the flap¢
fig. 232 -arrow-.
.,. Unscrew fue l filler cap counter-clockwise
and hang it on the fuel filler flap ¢
fig. 233.
.,. Check the label on the inside of the fuel fill­
er flap to determine 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 wi ll
go .
.,. Select a medium refuelling rate so that the
nozzle switches off automatically when the
tank is fu ll.
Putting the fuel cap back on
.,. After filling your tank, twist the fuel filler
cap clockwise as far as it wi ll go.
.,. Close the fuel filler flap.
T o avoid fuel spilling 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 27
to come on (only vehicles with gasoline en ­
gine) .
_&. WARNING
Improper refueling or handling of fuel can
cause fire, explosion and severe burns.
- Fuel is highly flammable and can cause
severe bu rns and other injuries.
- Failure to shut the engine off while refu­
eling and/or to insert the pump nozzle
fu lly into the fuel filler neck could cause
fuel to spray out of filler neck or to over­
f low . Fu el spray and overflowing fue l can
cause a fire.
- Never use a cellular telephone while re­
fue ling. The electromagnetic radiat ion
can cause sparks that can ignite fuel va­
pors and cause a fire .

254 Fuel supply and filling your fuel tank
Unlocking the fuel filler flap by hand
You can open the fuel filler flap by hand if the
power locking system should fail .
•
Fig. 234 Luggag e compart men t: Pry ing cover open
Fig. 235 Luggage compartmen t: Eme rgency open ing
of fuel filler flap
.. Remove the right-side trim panel with the
aid of a screwdriver
c:> fig. 234.
.. Pull the loop down in the direction of the ar­
row to unlock the fuel f iller flap
c:> fig. 235.
Selective catalytic
reduction
General information
Applies to vehicles: with diesel engine
On vehicles with selective catalytic reduction,
an urea solution (Ad Blue) is injected into the
exhaust system before a nitrogen oxide cata­ lytic converter to reduce nitrogen emiss ions.
The AdBlue is stored in a separate tank in the
vehicle. The AdBlue usage accounts for ap­
proximately 0.5% to 1.2% of the diesel fuel
that is used.
You must refill the Ad Blue or have it refilled
by your author ized Audi dealer or qualified
workshop as soon as the AdBlue refill mes- sage appears
in the instrum ent cluster
r=>page 255.
.&_ WARNING
-
Failure to heed AdBlue refill information in
the instrument cluster can prevent the ve­ hicle from being started and driven. If the
vehicle cannot be driven and an emergency
arises, personal injury can occur.
- Always have the AdBlue tank refilled well
before the tank runs dry.
(D Tips
- The instrument cluster disp lay ind icates
the distance remaining that can be driv­
en
r=> page 254. If the AdBlue tank is
completely empty, the engine will not
start again after the ignit ion is switched
off.
- AdBlue is required by law to operate this
vehicle.
Indicator in the instrument cluster
display
Appl ies to vehicles: with diesel engine
The display indicates if the Ad Blue level is low
or if it was filled incorrectly .
Fig. 236 Instrument cluster: indicator in the display
AdBlue level low
You will be informed if the Ad Blue in the tank
drops below a certain level.
AdBlue l;) 1500 mi (2400 km) Refill
AdBlue. See owner's manual

This indicator appears when there is on ly
enough Ad Blue left to drive the distance indi­
cated in the driver informat ion system. Please
add Ad B lue.
Ad Blue /9 600 m i (1000 km) Refill
AdBlue! No restart in 600 miles (1000 km )!
See owner's m anual
This indica to r appears when there is on ly
enough Ad Blue left to drive the d istance indi­
cated in the driver information system. Please
add Ad B lue . Otherw ise the eng ine will not
start aga in if you stop it once the distance in­
dicated has been driven.
Refill AdBlue! No
restart! See owner's manual
This message appea rs when the AdBl ue tan k
is empty . Please add AdBlue. Otherwise yo u
will not be ab le to start the engine again once
you stop it.
When the minim um AdBl ue level has been
reached, you must add Ad Bl ue
q page 255 .
¢'4 Filling incorrectly
If the Ad Blue tank was filled with a diffe rent
f luid than Ad Blue and the system detec ts that
it is i ncor rect, a message w ill appe ar.
AdBlue / 600 mi (1000 km) Ad Blue!
No re start in 600 mile s (1000 km )! See own ·
e r' s manual
This message appea rs when it is only poss ible
to d rive the distance ind icated in the dr iver in­
formation system . Drive to the nearest q uali­
f ied work shop to have the malfunct ion re­
p air ed. Otherwise the engine w ill no t start
again if you stop it o nce the distan ce indi cated
h as been driven.
AdBlue: sy stem
fault . No restart! See owner 's manual
This message appea rs if the system detects it
was fi lled incor rectly . Drive immed iate ly to
t he nea rest qualified wo rkshop to have the
m alf unct io n repaired. Otherw ise you will n ot
be ab le to s tart the engine aga in once yo u
stop it.
Fu el suppl y and filli ng your fuel t ank 255
Filling AdBlue
Applies to vehicles: with diese l engine
A special refill bottle must be used to fill the
AdBlue .
Fig. 23 7 Right rear vehicle side: removing t he AdB lue
cap
Fi g. 23 8 Ad B lue fill er tube: inserting th e refill bottle
The Ad Blue filler tube is located near the d ie­
sel filler tube. Always add 1 gallon (3.8 liters)
of Ad Blue (two bott les). T his is the minimum
amount required to ens ure the system detects
the refill ing and to sta rt the e ng ine. The Ad B l­
u e tank capacity is app rox imately 6 gallons
( 2 3 lite rs).
Opening the filler tube and adding
Ad Blue
Req uirement: The request to add Ad Blue must
appear in the instrumen t cluster disp lay. •
.,. Switch the ignit ion off .
.,. Open the tank cover
q pag e 2 52.
.. Tu rn the cap co untercloc kwise with the lug
w ren ch from the vehicle too l ki t t o rem ove it
qfig. 237.
.. Remove the ca p from the refi ll bott le.
.. Position the refill bottle o n the filler tube
and turn the bottle clockwise until it stops
turn ing
(D q fig. 238. 1111>

256 Fuel supply and filling your fuel tank
• Press lightly against the bottom of the bot­
tle @to empty it. Continue pressing the
bottom of the bottle until it is empty or un­
til fluid stops flowing into the tank.
• Turn the bottle to the left without pressing
on the bottom .
Closing the filler tube
• Turn the cap clockwise on the filler tube
with the lug wrench until you hear it tighten
completely.
• Close the tank cover.
After filling
The vehicle must be driven. The system may
take up to two minutes to detect that the
Ad Blue has been filled.
• If there was no Ad Blue left in the tank and a
range of
O mi (0 km) was displayed in the
instrument cluster , switch the ignition on
for about 15 seconds before starting the en­
gine.
A WARNING
, -
AdBlue can irritate the skin, eyes and res-
piratory system. If there is contact with
the fluid, flush immediately with plenty of
water. Consult a physician if necessary.
Q) Note
- Only use Ad Blue that conforms to the
standard ISO 22241-1. Do not mix any
additives with the Ad Blue and do not di­ lute it with water.
-AdBlue is not a diesel additive . Do not
add it to the diesel tank. If Ad Blue is
mixed with diesel fuel, it can lead to
damage to the engine and the Ad Blue
tank system. The Limited New Vehicle
Warranty does not cover such damage.
- Ad Blue attacks surfaces such as painted
vehicle components, plastic and carpet. Remove the fluid as quickly as possible
with a damp cloth and plenty of cold wa­
ter. If the Ad Blue has already crystal­ lized, use warm water and a sponge.
AdBlue residue that is not removed will crystallize and can damage the affected
surface.
- Do not store the refill bottle in the vehi­
cle. If it leaks, the escaping Ad Blue could
damage the vehicle interior.
- Do not allow Ad Blue to come into con­
tact with clothing. If there is contact
with the fluid, flush immediately with
plenty of water.
(D Tips
- You can obtain refill bottles from any au­
thorized Audi dealer or other qualified
workshop .
- Follow the Ad Blue manufacturer's in­
structions for usage and storage.