fuel pressure AUDI Q7 2009 Owner´s Manual

-~_T_ ir_e_ s_ a_ n_d _ w_ h_ e_e _l_s _________________________________________________ _
& WARNING (continued)
crashes and serious personal injuries . Have worn or damaged tires
replaced immediately.
• Tires age even if they are not being used and can fail suddenly,
especially at high speeds. Tires that are more than 6 years old can
only be used in an emergency and then with special care and at
low speed.
Glossary of tire and loading terminology
Accessory weight
means the combined weight (in excess of those standard items
which may be replaced) of automatic transmission, power steering,
power brakes, power windows, power seats, radio, and heater, to
the extent that these items are available as factory-installed equip­
ment (whether installed or not).
Aspect ratio means the ratio of the height to the width of the tire in percent.
Numb ers of 55 or lower indicate a low sidewall for improved
steering response and better overall handling on dry pavement.
Bead
means the part of the tire that is made of steel wires, wrapped or reinforced by ply cords and that is shaped to fit the rim.
Bead separation means a breakdown of the bond between components in the bead.
Cord
means the strands forming the plies in the tire.
& WARNING (continued)
• Never mount used tires on your vehicle if you are not sure of
their "previous history." Old used tires may have been damaged
even though the damage cannot be seen that can lead to sudden
tire failure and loss of vehicle control.
• If you notice unusual vibration or if the vehicle pulls to one side
when driving, always stop as soon as it is safe to do so and check
the wheels and tires for damage . •
Cold tire inflation pressure
means the tire pressure recommended by the vehicle manufacturer
for a tire of a designated size that has not been driven for more than
a couple of miles (kilometers) at low speeds in the three hour period
before the tire pressure is measured or adjusted.
Curb weight means the weight of a motor vehicle with standard equipment
including the maximum capacity of fuel, oil, and coolant, air condi­
tioning and additional weight of optional equipment.
Extra load tire
means a tire design to operate at higher loads and at higher infla ­
tion pressures than the corresponding standard tire. Extra load tires
may be identified as "XL",
"xi", "EXTRA LOAD", or "RF" on the side ­
wall.
Gross Axle Weight Rating ("GAWR")
means the load-carrying capacity of a single axle system, measured
at the tire -ground interfaces.
Gross Vehicle Weight Rating ("GVWR"l
means the maximum total loaded weight of the vehicle.

_L_T~ ir~e :..:s~ a~n~ d~ w~ h ~e~e~ l~ s '.,_ ______________________________________________ _
Sidewall
means that portion of a tire between the tread and bead.
Speed rating means the speed at which a tire is designed to be driven for
extended periods of time. The ratings range from 93 mph (150 km/h)
to 186 mph (298 km/h)=>
page 360. You may not find this informa ­
tion on a ll tires because it is not required by law.
The speed rating letter code, where applicable, is molded on the tire sidewa ll and indicates the maximum perm issible road speeds=>
&
in "Winter tires" on page 363.
Tire pressure monitoring system
means a system that detects when one or more of a vehicle 's tires
are under inflated and illuminates a low tire pressure warning te ll­
tale.
Tread
means that portion of a tire that comes into contact with the road.
Tread separation
means pu lling away of the tread from the tire carcass.
Treadwear indicators (TWI)
means the projections within the principa l grooves designed to give
a visual indication of the degrees of wear of the tread . See
=>
page 357, "Tread Wear Indicator (TWI)" for more information on
measuring tire wear.
Uniform Tire Quality Grading
is a tire information system developed by the United States National
Highway Traffic Safety Adm inistration (NHTSA) that is designed to
help buyers make relative comparisons among tires. The UTQG is
not a safety rati ng and not a guarantee that a tire will last for a
prescribed number of miles (kilometers) or perform in a certain way.
It simply gives tire buyers additional informat ion to combine with
other considerations, such as price, brand loyalty and dealer recom-mendations. Under UTQG, tires are graded by the tire manufac­
t urers in three areas: treadwear, traction, and temperature resis­
tance . The UTQG information on the tires, molded into the
sidewalls.
U .S. DOT Tire Identification Number (TIN }
This is the tire's "seria l number" It begins with the letters "DOT" and
indicates that the tire meets a ll federa l standards . The next two
numbers or letters indicate the plant where it was manufactured,
and the last four numbers represent the week and year of manufac­
ture. For example,
DOT ... 2208 ...
means that the tire was produced in the 22th week of 2008 . T he
other numbers are marketing codes that may or may not be used by
the tire manufacturer . This information is used to contact
consumers if a tire defect requires a reca ll.
Vehicle capacity weight
means the rated cargo and luggage load plus 150 lbs. (68 kilograms)
times the vehicle's tota l seating capacity as listed on the label
located either on the driver's side 8-pillar or on the inside of the fuel
filler flap.
Vehicle maximum load on the tire
means that load on an individual tire that is determined by distrib­
uting to each axle its share of the maximum loaded vehicle weight
and dividing by two.
Vehicle normal load on the tire
means that load on an individual tire that is determined by distrib­
uting to each axle its share of the curb weight, accessory weight,
and normal occupant weight (distributed in accordance with table
below =>
page 351) and dividing by two. _..

Tires and wheels -_______________ _____.
Occupant loading and distribution for vehicle normal load for various designated seating capacities
Designated seating capa city , num­
ber of o ccupants Vehicle normal load
, number of
occupants Occupant distribution in a normally
loaded vehicle
5/6*/7* 3
2 in front, 1 in second seat •
Cold tire inflation pressure
Tire
pressure affects the overall handling, performance and safety of a vehicle.
Fig. 291 Tire pressure
label: located either on
driver's side B-pillar or
inside the fuel filler flap
Tire pressure generally refers to the amount of air in a tire that it
needs it to do its job and safely carry the combined load of the entire
vehicle and its contents. Tire pressure is measured in kilopascals
(kPa), the international measuring unit and in pounds per square
inch (PSI). Tire pressure is based in part on the vehicle's design and
load limit -the greatest amount of weight that the vehicle can carry
safely and the tire size . The proper tire pressure is frequently
referred to as the "recommended cold tire inflation pressure ." Air in
the tires expands when the tire heats up because of internal friction
when it flexes in use. The tire pressure is higher when the tire has
warmed up than when it is "cold." It is the inflation pressure in a
"cold" tire that counts. Therefore, you should never let air out of a
warm tire to match "cold tire inflation pressure " recommendations .
The tires would then be underinflated and could fail suddenly.
i
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TIRE AND LOADING INFORMATION
TIRE SIZE COLO TIRE PRESSURE
FRONT -KPa, -PSI
REAR -KPa, - PSI
SPARE -KPa, - PSI
MANUAL FOR
INFORMATION SEE OWNER'S I
ADDITIONAL
Fig . 292 Tire pressure
label
Maintaining proper tire pressure is one of the most important
things you can do to help avoid sudden tire failure. Underinflated
tires are a major cause of sudden tire failure. Keeping tires at the
right pressure is also important for safe and responsive vehicle
handling, traction, braking and load carrying.
Tire pressures are
particularly important when the vehicle is being driven at higher
speeds, and then especially when heavily loaded even within the
permissible load -carrying capacities approved for your vehicle.
The recommended tire pressures for your Audi depend on the kind
of tires on your vehicle and the number of passengers and/or
amount of luggage you will be transporting.
On USA vehicles, the tire pressure label is located on the driver's
side B-pillar. On Canada vehicles, the tire pressure label is located
either on the driver's side 8 -pillar or inside the fuel filler flap . The tire
pressure label lists the recommended cold tire inflation pressures _,,,
Vehicle care I I irechnical data

-Tires a nd wh eels rm __________________ _
for the vehicle at its maximum capacity weight and tires that were
on your veh ic le at the time it was manufactured.
If you w is h t o improve co mfort w hen opera ting the vehicle a t
n ormal lo ad (up t o 3 o ccupant s), you can a djust ti re pre ss ure s to
tho se s pecified for norm al v ehi cle load . B efore operating the vehi cle
at m aximum lo ad , y ou must i ncreas e the t ire p re ss ure s to tho se
s pe cifi ed for m axim um vehicle lo ad
=> & .
Bear in mind that the tire pressure monitoring system can only
monitor the tire pressures you have stored. The system does not
recognize the load condition of your vehic le.
The effectiveness of the tire pressure monitoring system will be impaired if you store normal load pressures but then operate the
vehic le at its maximum load=>&. See the
illustration=>
page 351, fig. 291 for the location of the label
either on driver's side B -p illar or inside the fuel fi ller flap (color of
the actual label and exact location on the vehicle will vary slight ly).
Note that the fol lowing tab le is accurate at the time of going to
press and is subject to change . In the event of discrepanc ies, the tire
pressure label (On USA vehic les, the tire pressure label is located on
the driver's s ide B-pillar . On Canada vehicles, the tire pressure label
is located either on the driver's side B-pillar or inside the fue l fi ller
fl ap) always takes precedence.
T he table below lists the recommended cold tire inflation pressures
for the Audi model covered by your Owner's Literature at the
vehic le's capacity weight and the tire sizes installed on the respec ­
tive models as origina l equipment, or as a factory option.
En gin e
( displ ac e­
m ent in
liter) Tir
e desi gnatio n Tire pressure fr ont Tire pressur e re ar
normal load norm
al lo ad
full l oad conditi
on (up
full load
condition (up to c ondit ion t o 3 o ccu- co nditi on 3 occupants)
pant s)
II
PSI II kPA PSI kPA PSI II kPA PSI kPA
235/6 0 R18 10 7H XL All Sea son 35 240 44 300 35 240 49 340
255/55 R18 109H XL All S easo n 35 2
40 44
300 35 240 49 3
40
6 -cy lind er 2
65 /50 R19 11 OH XL All Seas on 35 240 44 300 35 240
49 340
3.6
275 /45 R20 11 OH XL All Se ason 35 240 44 300 35 240 49 340
and
8- cy linder 2
75/ 45 R20 11 0 Y XL Hig h Pe rfo rman ce
35 240 44
300 35 240 49 340
4
.2 295 /40 R20 11 0Y XL Hi gh P erform ance 36 44 300 35 240 49
340
2 75/40 R21 10 7V XL High Perf ormanc e 36 250 44 300 35 240 49 340
295 /3 5 R21 107 V XL High P erforman ce 36 250 4
4
300 35 240 49 340
X
L = re infor ced or extr a load tire . It ma y als o app ear as x i, EXTRA LOAD , or RF on the tire side wa ll.
The correct tire pressure for the spare wheel is located on a label either on the driver's side B -pillar or inside the fue l filler flap.

Tires a nd wh eels -
----------------
•
Because technical changes may be made to vehicle equipment
during the mode l year, always compa re the tire size designation on
the tire pressure label on your vehic le with the tires on your vehicle.
Make sure that the tire size information on the vehicle labe l is the
same as the size of the tires on the vehicle . This is especially impor­
tant if the vehicle belongs to someone else or you bought the
veh ic le with different rims/tires or you bought the vehicle as a previ ­
ously owned vehicle.
Remember, your safety and that of your passengers also depends
on making sure that load limits are not exceeded. Vehicle load
includes everybody and everything in and on the vehicle . These load
limits are technically referred to as the vehicle's Gross Vehicle
Weight Rating ("GVWR"l. The Gross Axle Weight Rating ("GAWR"l is
the maximum load that can be applied at each o f the vehicle's two
ax les . The Gross Vehic le Weight Rating and the Gross Ax le Weight
Rating are l isted on the safety compl iance sticker labe l located
either on the driver's side 8 -pillar or on the inside of the fuel fi ller
flap. The ti re pressure labe l on your Audi lists the maximum
combined we ight of a ll of the occupants and luggage or other cargo
t hat the vehic le can carry. For the location of the tire pressure la bel
=>
page 357, fig . 291.
& WARNING
O verload ing a vehi cle can c ause loss of vehi cle co ntrol , a cra sh or
other a ccid ent , s eriou s per sonal injury , and even death.
• Carrying more weight than your vehicle wa s de signed to carry
w ill p revent the vehicle from h andling properly and incre ase the
ri sk of a l oss of vehi cle control .
• The brake s on a vehicle that ha s been o verloaded m ay not be
a ble to stop the vehicle with in a safe distance .
• Tires on a v ehi cle that ha s been o verlo aded can fail suddenl y
c au sin g loss o f control a nd a cra sh .
• Alwa ys ma ke sure that the total l oad being tr ansp o rted -
including th e wei ght of a trailer hit ch and the tongu e weight of a
& W AR N IN G (c ontinued )
loaded trailer -does not m ake the vehi cle heavier than the
v ehicle' s Gro ss Vehicle W eight Rating.
& WARNING
• Incor re ct t ire pre ssures a nd/o r underi nfl ation can le ad to a
s erious or fatal a ccident.
• Incorre ct t ire pre ssure s and/or u nderinfla tion ca use in crea sed
tire w ear and can affect th e handling of the vehicle.
• Incorre ct t ire p ressu res and /or underinfl ation c an als o lead to
s udden tire failure , including a blowout and sudden deflation ,
c au sin g lo ss of vehi cle co ntr ol. •
Checking tire pressure
The correct tire pressure for the tires originally installed
o n your vehicle is listed on the tire pressure label located
either on driver's side 8 -pil/ar or inside the fuel filler flap .
The recommended tire pressures are on the tire pressure label and
in the table=>
page 351, "Cold tire inflation pressure" .This means
that the pressure must be checked and adjusted when the tire has
not been driven for more than a couple of mi les (kilomete rs} at low
speeds during the previous three hours. Air in the tires expands
when the tire heats up as a result of internal fric tion as i t flexes in
use. The tire pressure is higher when the tire has warmed up than
when it is "cold ."
It is the inflation pressure in a "cold" tire that counts. Therefore, you
should never let air out of a warm tire to match "Co ld tire inflation
pressure" recommendations=>
page 351 . The tires wou ld then be
underinflated and could fail suddenly.
The tire pressure label on your Audi lists the recomme nded cold tire
inflation pressures at maximum capacity for the new, origina l equip -.,.
Vehicle care I t •

Tires and wheels -_____________ .:.....::...=..____:__:_:_:_=-=----
•
& WARNING (continu ed )
• Incorrect tire pressure and /or under inflation can cause
in creased tire wear and can affect the handling of the vehicle and
stopping ability .
• Incorrect t ire pressures and /o r underinflat ion can also lead to
sudden tire failure, including a blowout and sudden deflation,
causing lo ss of vehicle control .
• The driver is respon sible for the correct tire pressures for all
tires on the vehicle. The applicable pre ssure values are located on
a sticker on the driver 's side 8-pillar or on the inside of the fuel
filler flap .
• Only when all tires on the vehicle are filled to the correct pres ­
sure , the tire pressure monitoring sy stem can work correctly .
• The use of incorrect tire pressure values can lead to accidents
or other damage . Therefore it is essential that the driver observe
the specified tire pressure value s for the tires and the correct pres ­
sures for the function of the tire pressure monitoring system.
• Always inflate tires to the re commended and correct tire pres ­
sure before driving off .
• Driving with underinflated tires bend more , letting them get
too hot resulting in tread separation , sudden tire failure and loss
of control.
• Ex cessive speed and /overloading can cause heat build-up ,
s udden tire failure and lo ss of control .
• If the tire pres sure is too low or too high , the t ires will wear
prematurely and the vehicle will not handle well .
• If the tire is not flat and you do not have to change a wheel
immediately , drive at reduced speed to the nearest service station
to check the t ire pressure and add air as required.
0 Note
Dr iving wi thout valve stem caps ca n cause damage to t he tire
valves. To prevent this, always make sure that factory instal led va lve
stem caps o n all wheels are sec urely mou nted on the va lve .
c£> For the sake of the environment
Underi nflate d tir es w ill a lso inc rease the fue l consu mptio n.•
Tires and vehicle load limits
There are li m its to the a mou nt o f load or weig ht th at any ve hic le and
any tire can carry . A vehicle that is overloaded wil l not handle wel l
and is more diff icu lt to stop . Overload ing ca n no t only lead to loss
of vehic le control, but can also damage important parts of the
ve hicle a nd can lead to sud den tire failu re, i nclu di ng a bl owou t and
sudden deflat ion that can cause the vehic le to crash.
Your safety an d that of your passengers also depends on ma kin g
su re tha t load l imits are not exceeded . Vehicle load includes eve ry ­
body and everything in and on the vehic le. These load limits are
t echnica lly re ferred to as the ve hicle's
Gross Vehicle Weight Rating
("GVWR"l.
The "GVWR" in clu de s th e we ig ht of t he basi c ve hicle, all fac tory
insta lled accessories, a ful l tank of fuel, oil, coolant and other fluids
plus m aximu m load. The maxi mum l oad inc lude s the n umber of
passen gers that the vehicle is intended to carry !"seating capacity")
with an assumed weight of 150 lbs (68 kg) fo r each passenger at a
designated seating position and the total weight of any lugga ge in
the vehicle. If you tow a trailer, the weight of the trailer hitch and the
to ngue we ig ht of th e loaded tra iler must b e included as par t of th e
vehic le load.
The
Gross Axle Weight Rating ("GAWR") is the m aximum loa d th at
can be applied at each of the vehicle's two ax les. _,,,
Vehicle care I t •

lffll _ _::_A:!.:l'..!:: p :.'.h..:.: a:::::: b:..::e :.:t :.:i c:::::: a.:..l ...:.:i n:....:..::: d:.::e :.:x::_ ___________________________________________ _
Technical modifications
Temperature
Climate controls
Four -zone automatic comfort air 404
127
cond it ioning .... .... .... ... .... 133
Set ting for the driver's and front passen­
g er's side . . . . . . . . . . . . . . . . . . . . . . 127
Tether strap .... ...... ... .... .. . .... 283
Securing the upper tether strap .... 284
The first 1,000 miles (1,500 km) and afterwards .. .... .... .... ... .... 297
Tie -down rings ... .... .... ... .... ... 105
Tie -down rings (adjustable) . . . . . . . . . . . 106
Tie -downs . . . . . . . . . . . . . . . . . . . . . . . . . 229
Tips for the environmen t
Saving fuel .... .... .... ... .... ... 113
Using the air conditioner only when necessary . . . . . . . . . . . . . . . . . . . . . 13 1
ti ptron ic® . . . . . . . . . . . . . . . . . . . . . . . . . 184
Automa tic Shift Lock (ASU . . . . . . . . 186
Driving ... ... .... .... .... ... .... 184
Dynamic shift program . ....... ... 187
Fail -safe mode . . . . . . . . . . . . . . . . . . . 189
Kick -down ... .... .... .... ...... . 187
Manual shif t program .. .... ... .... 188
Selector lever . . . . . . . . . . . . . . . . . . . . 185
Tire pressure ..... .... .... ... .. .. ... 353
Tire pressure monitoring system ...... . 43
Changing wheels . .... .... .... .... 46
Learning process ..... .... .. .. .... 45
Loss of air pressure . ... ... ..... 20, 44
Ma lfunctions ...... ... .... .... .... 46
Sens ors . . . . . . . . . . . . . . . . . . . . . . . . 361 Sto
ring tire pressures .... ... .. .... . 45
Tires and wheels ... .... ...... ... . 361
Valves ... ... ....... ........ .... . 361
Tire service life . ..... .... .... .... ... 357 T
ouch-up pain t
Towing Front eyelet 3
16
390
Rear eyelet .... .... .... ... .... .. . 391
Tires . ... .. .. .... ..... .. .... .... ... 347 Tow t ruck procedur es .. .... .... ... 390
Replacing ..... ... .. .. .... .... ... 361 Towing hitch
Service life . ... .. .. .... .... .... .. 357 Audi parking system ... .... .... .. . 201
speed rating letter code . ... .... ... 360 Trailer towing ...... ....... ...... ... 305
Tire manufacturing date .. ...... ... 360
Tire specifications ... .. .... .... ... 360
Tread depth . .... .. .... .... .... .. 357
Uniform tir e quality grad ing ... .... 363
W inter tir es ... ..... .. .... .. .. ... 363
Tires and vehicle load limits
Tires and wheels 355
Checking tire pressure . ......... .. 353
Co ld t ire inflat ion pressure .... .... 351
Dimensio ns ... ... .... .... .... ... 359
General notes ... .. .... .... .... .. 347
G lossa ry of tire and loading term inology .
348
New tires and wheels .. ... ... .. ... 359
Rep lacing . .... ... .... .... .... ... 359
Snow chains ... .. .. .. ..... .. .... 364
Tire pressure monitoring sy ste m . .. 361
Tires and vehicle load limits . ... ... 355
Whee l bo lts ... ... .. .. .... .... ... 365
Winter tires . ....... .. .... .... ... 363
Tires/Whee ls
Low aspect ratio tires .. .... .... ... 366
Tire pressure monitoring system . 20, 43
T ools ..... .. .... ...... .... ... .. ... 371
Torn or frayed safety be lts . ...... .... 234 Operating
inst ruct ions .... .... .... 306
Technical requirements . .... .. 305, 307
Tong ue load ...... .... .... .... ... 306
Trailer towing tips ...... .. . .... .. . 308
T railer turn signal assembly
Wa rning /indicato r lights ......... ... 20
T ransm ission
tiptronic® ...... .... ... .. .. .... . .
Transport Canada .. ... .... ... .... .. .
T read Wear Ind icator (TWll
Trip co mputer 184
230
357
Fuel consumption ..... .... .... .... 4 0
Mi leage . ...... .... .... ... .... .. .. 40
Single -trip memory ..... ... .... .. . . 41
T otal -trip memory . .... .... .... ... . 41
Trip odo meter ..... .... ... .. .. .... .. . 1 5
What does it mean when dEF appears in the trip odome te r disp lay? ........ 15
Trunk
Se e Rea r lid ... .... .... ... .... . 57 , 58
Turn signals ...... .... .... ... .... .... 77
Warning /indicator l ights ... .. ...... . 20
T urning rea r air conditioning on/off
Four -z one au tomatic comfor t air
conditioning ..... .... ... .... .. . 132