2009 AUDI Q7 tire pressure

___ ln_ t _e_ ll-'"ig ...,_ e_ n_t _t_ e_ c_ h _ n_o _ l_o _,.g= y,_ __________________________________________ _
& WARNING
• You should perform braking maneu vers for the purpose of
cleaning the brake system only if road conditions permit . Other
road u sers mu st not be put at r isk -you may cause an a ccident!
• Before des cending a steep grade, reduce speed and shift trans ­
mission into a lower gear or lower dr iving range . Do not ride the
brakes or hold the pedal down too long or too often. This could
cause the brake s to get hot and diminish braking effi ciency .
• Do not "ride the brakes " by resting your foot on the pedal when
you do not intend to b rake. This may cause the br ake s to ove rheat ,
premature wear and increased stopping distance.
• Under ce rtain climat ic and operating condit ions such as
passing through water , driving in heavy rain or after washing the
vehi cle , the effectiveness of the brakes can be reduced . In winter ,
ice can a ccumulate on the brake pads , linings , discs and drums .
Carefully apply bra kes fo r a test . Brakes will dry and ice coatings
will be cleaned off after a few careful brake appli cations .
• Driving for an extended period of time on salt -co vered roads
without using your brakes can also affect braking effic iency. Clean
off accumulated salt coating from brake dis cs and pads with a few
c areful brake applications .
• If you damage the front spoile r, or if you install a different
spoiler, be sure the air flow to the front brakes is not ob structed.
Otherw ise the brake sy stem could overheat reducing the effective­
ness of the entire brake system .
• Failure of one bra ke cir cuit will impair the braking capability
resulting in an increased stopping distance. Avoid driving the
vehicle and ha ve it towed to the nearest authorized Audi dealer or
qualified workshop . •
Brake booster
T he b rake boost er ad ds extra b ra kin g powe r.
The brake booster works with vacuum pressure which is created
o nly w he n t he e ngine is ru nnin g=> & .
& WARNING
• Never let the vehicle roll to a stop with the engine shut off.
• If the brake booster is not working, for example when towing
your vehicle, or because the brake boo ster has somehow been
damaged , the brake pedal must be pressed considerably harder to
make up for the lack of booster assistance . •
Functioning of A!"lt"-Lock Brake System (ABS)
ABS p revents the wheels from locking up unde r brakin g.
Th e ABS co ntribu tes effect ively to vehicle cont ro l since it preve nts
the whee ls from
locking when the brakes are app lied. This means
t h at the ve hicle rema ins steerable and is less l ikely to s kid.
With ABS you do not need to pump the brake . Just hold the brake
pedal down .
However, do not expec t the A BS to s hor ten bra king d istance u nder
all circumstances. When driving o n grave l or on newly fallen snow
o n t op o f icy sur faces, brak ing d istance may be ev en lon ger, the re­
fore, under these c ircumstances, it is especially important that you
driv e slow ly an d with gre at ca re.
How the ABS system works
An a utomatic c heck is m ade w hen a speed of about 1 2 mph (2 0
km/h) is reached. When this happens, a pumping noise can be
h ea rd.

If an individual wheel begins to rotate too slowly in relation to
vehicle speed and tends to lock, the ABS automatically reduces
brake pressure to prevent that wheel from locking.
This automatic adjustment process will cause a
slight vibration of
the brake pedal and some noises to alert you that vehicle speed
must be adapted to existing road and traffic conditions .
_& WARNING
Although the ABS is very effective, always remember that braking
capability is limited by tire traction. Always adjust your driving
speed according to the road and traffic conditions. Do not let the
extra safety afforded by the ABS tempt you into taking extra risks.
The ABS cannot overcome the laws of physics.
[ i] Tips
• If ABS is not functioning properly , a warning light will come on .
See
=> page 22.
• If a fault occurs in the ABS, the EDL is also not functioning. This
is indicated by the ABS warning light.•
Brake assistant
The brake assistant is designed to achieve the optimum
braking effect.
The brake assistant helps to increase the effective braking power
and thus to achieve
a shorter stopping distance . If the driver
presses the brake pedal very quickly , the brake assistant automati­
cally boosts the braking force to the maximum level, up to the point
where the anti-lock brake function (ABS) intervenes to stop the
wheels from locking. You should then keep th e brake pedal pressed
until the vehicle has braked to the required speed. The brake assis­
tant swi tches its elf off as soon as you release the brake pedal.
Controls and equip­
ment Safety first Vehicle operation
Intelligent technology
Automatic full braking assist
This function allows full braking
in spite of high brake pedal forces
(e.g . when the brakes are severely stressed because the vehicle is
fully loaded) . The driver notices this function through a reduction of
pedal force and increased pedal travel. When the brake pedal is
released, full braking assist switches off again automatically.
If there is an ABS failure, the brake assistant and automatic full
braking assist ar e not available .
The brake assistant will not be operative if there is a malfunction in
the ABS.
_& WARNING
Please remember that the accident risk always increases if you
drive too fast, especially in corners or on a slippery road, or if you
follow the vehicle ahead of you too closely . Increased risk of an
accident cannot be compensated for even by the brake assistant,
so always maintain a safe speed. iJ
Servotronic® -advanced power
steering system
The power steering systems uses the power of the
running engine to allow precise steering with little effort.
The advanced Servotronic ® power steering system senses the road
speed and electronically adjusts power assistance to provide
comfortable and safe steering response exactly matched to the
vehicle speed.
Power steering will not work if the engine is off. As a result, the
s teering whe el will be hard to turn.
The power steering fluid level is checked during the scheduled
maintenance services .
•
Vehicle care Do-it-yourself service Technical data

llffl!I Driving off road __ _...,______;, _____________________________ _
Driving off road
Driving in difficult road conditions
and offroad
General information
The operat ion o f the Elect ronic Stab ilizat ion Prog ram ( ESP) is
e x panded for operation away from paved roads . In situations where
s lip o r a di fferential lockin g function is required, the ESP o ffroad
mode can be activated~
page 288. Hill descent contro l is also avai l­
able in the ESP off road m ode, w hich a utomat ical ly bra kes t he
vehicle and thereby keeps speed constant when different whee l
speeds are de tected whe n descend ing a hill ~
page 289 . You r Audi
a lso has permanent all -wheel drive in add ition .
Howeve r, your Audi is not a pure offroad vehicle . It was n ot bu ilt fo r
dr ivin g und er ex tre me cond itions, e.g . for tr ips t hat ar e in t he n atu re
of an expedition.
Drive only on roads and offroad sections which match the design of
your vehicle and your abilitie s as a driver . Never take r isks!
Before driving offr oad
• Check the engine oil level, tire pressure, coolant level, and the
fl uid level in t he windshie ld wash er r eservo ir.
• Stow luggage items and other objects in the luggage compart ­
ment, and secure the m aga inst sl iding around .
After driving offroad • After trips offroad, remove any twigs and other forei gn ob jects
from the gri ll, the underbody and the whee ls. Pay special attention
t o foreig n objects (stones) which have become lodged in t he tire
tread.
• Clean the body and the vehicle underside, and inspect the
veh ic le for possible damage. •
Clean dirty windows, headlamp lenses, rea r lights, and license
plates.
• Perform a bra ke check (particularly af ter travel ling through
wa ter).
& WARNING
• Drive especially attentively and plan ahead in difficult road
c onditions and when offroad . Excessive speed or in correct maneu ­
vers can cause injuries and damage to the vehicle.
• Alway s adapt your speed and d riv ing style to road , offroad,
traffic, and weather conditions. Drive especially slowly offroad
when your v iew is restri cted .
• Please be aware that in ESP offroad mode , particularly on a
smooth and slippery road , the wheels may have an in creased
tendency to spin and the vehicle may break away -danger of skid ­
ding !
• Stability is limited in the ESP offroad mode.
Avo id dam age to the envir onme nt an d respect na ture .
[ i ] Tips
On ly dr ive where it is perm itted and s tay on marked roads a nd
paths.
Explanation of some technical terms
T he fol lowing data refer to idea l conditions. Depending on vehic le
lo ad and g round cond itions and the environ ment, t he num ber s may ...

llffl!I Trailer towing
------=---------------------------------
& W ARN ING (continued )
• The Gros s Vehicle Weight Rating for your Audi 07 vehicle ,
found on the safety compliance l abel on the driver's side B -pillar ,
must never be ex ceeded under any cir cumstances . E xceeding the
Gross Vehi cle Weight Rating of your vehicle is likely to damage
your vehicle , and such damage w ill not be covered by your Limited
New Vehicle Warranty. Exceeding the Gro ss Vehicle Weight Rating
will also change the performan ce and handling characteristics of
your vehicle , which could cause a crash resulting in serious injury
or death .
• The Gros s Vehicle Weight Rating for your Audi 0 7 would be
e xc eeded if your veh icle is simultaneously equipped with
Panoramic sliding sunroof ; third -row seating ; trailer towing equip ­
ment (factory or dealer -installed) , and running boards (dealer ­
installedl. UNDER NO CIRCUMSTANCES MAY ALL SUCH ITEMS BE
INSTALLED ON THE SAME VEHICLE .
a
Operating instructions
---------~--~-------
MAX 6.9"
MAX 175mm
Trailer towing weights
Fi g. 2 76 P erm itted ball
po sition of the trailer
hitch
With a factory-installed trai ler hitch, the maximum permissible
trai ler weight is 6,615 lbs (3,000 kg). The maximum permissible
unbraked trailer weight is 1,650 lbs (750 kgl. With an
aftermarket
tr ailer h itch , the maxi mum pe rm iss ib le tra iler weigh t is 5,51 2 lb s (2,500
kg). These specifications apply when driv ing on roads having
an in cli ne of less t han 12% .
Permissible tongue load
Fo r best v ehicle ha ndling under th es e changed con ditio ns, a dju st
the trai ler load so that the tongue load is at the maximum allowable
or s lightly lower. Y ou ca n ge t an ap proxi mati on of the tong ue load
with a bathroom sca le or you can measure the load at a trucking
company or weig hing s tati on.
Wtih a
factory -installed trailer hi tch, the max imum perm issib le load
on the ball hitch may not exceed 66 2 lbs (300 kg) . With an
after­
market
t ra iler hitc h, the max imum pe rmi ssible loa d on the ball h itch
may not exceed 55 1 lbs (250 kg). It is recommended to use the
m aximum p ermi ssi ble l oad.
Trailer load distribution B e sure the load in the trai ler is he ld securel y in place to prevent it
from shifting forward, backward or sideways.
Never allow a passenger to ride in a trailer=> & in "D riving ins truc­
tions" on page 307.
Ball mount
T he trai ler hitch may only be used with suitab le ball mount and ball
=> fig. 276 . In sta llati on of t he hitch ball must be ca rr ie d o ut i n a ccor ­
dance with the manufacturer's instructions. At the height dimen­
s io n of 1 .5 in (38 .5 mm) a tole ran ce o f+/- 0 .5 in (12 .7 mm) is pe rmis ­
sib le.
Engine cooling system
T owing a trai ler makes the engine work harder. It is important that
th e c ooli ng system 's per forman ce is u p to the a ddi tiona l loa d. Ma ke
sure that the coo ling s ystem has enough f luid.
Tire pressure
When towing a trailer, inflate the tires of your vehic le to the cold tire
p re ssure l is ted unde r "Full load" on th e tire press ure l abe l. On USA
vehic les, the tire pressure label is located on the driver's side 8 -

pillar. On Canada vehicles, the tire pressure label is located either on
t he driver's side 8 -pillar or inside the fuel fil ler flap. Inflate trailer
tires to trailer and tire manufacturers' specifications.
L ight s
The head light settings should be checked with the trailer attached
before driving off . Check to make sure both vehicle and trai ler lights
are working properly.
Sa fety c hain s
Be sure trailer safety chains are properly connected from the trailer
to the hitch on the vehicle . Leave enough slack in the chains to
permit turning corners. When you insta ll safety chains, make sure
they will not drag on the road when you are driving .
The chains should cross under the tra iler tongue to prevent it from
dropping in case of separation from the hitch.
0 Note
If you are going to tow a traile r, you must activate the trailer opera ­
tion mode =>
page 211, "Towing a trailer" .
Driving instructions
Driving with a trailer always requires extra care and
consideration.
To obtain the best possible handling of vehicle and trailer,
please note the fo llow ing:
- Do not tow a loaded trailer when your car i tse lf is not
loaded .
- Be especia lly careful when passing other vehicles .
- Observe speed l imits.
- Do not drive at the maximum permiss ible speed .
Controls and equip­
ment Safety first Vehicle operation
Tr
aile r t owing
Always apply brakes early .
- Monitor the temperature gauge .
Weigh t dis tr ibution
Towing a loaded trailer wi th an empty car results in a highly
unstable dis tribution of weight . If this cannot be avoided , drive at
very low speeds only to avoid the risk of losing steering control.
A "balanced" rig is easier to operate and control. This means that
the tow vehicle should be loaded to the extent possible and permis ­
sib le, while keeping the trailer as light as possib le under the circum ­
stances . Whenever possible, transfer some cargo to the luggage
compartment of the tow vehicle whi le observing tongue load
requirements and vehicle loading considerations .
Speed
The higher th e speed, the more difficu lt it becomes for the driver to
control the rig . Do not drive at t he maximum pe rmissible speed.
Reduce your speed even more
if load, weather or wind conditions
a re unfavorable -particularly when going downhil l.
Reduce vehicle speed
i mmedi ate ly if the trailer shows the slightest
sign of swaying.
Do not tr y to s top the swaying by accelerating .
Observe speed limits . In some areas, speeds for vehicles towing
trailers are lower than for regular vehicles .
Always apply brakes early. When driving downhill, shift into a lower gear to use the engine braking effect to slow the vehicle. Use of the
brakes alone can cause them to overheat and fa il.
Coo lant t emperatu re
The coolant temperature gauge=> page 13 must be obse rved care ­
ful ly. If the need le moves close to the upper end of the sca le , reduce
speed immediately and/or turn off the air conditioner .
If the coolant temperature warning light in the instrument cluster
starts f lashing
- f- , pul l off the road, stop and let the engine idle for
about two minutes t o prevent heat build -up.
Vehicle care Do-it-yourself service Technical data

-~_C_ le_ a _ n_i_n ...::g ::....- a_ n_ d_,__ P_r _o _t _e _c_ t_ i_o _n ___________________________________________ _
Use a separate sponge for cleaning the wheels, door sills and other
regions exposed t o road dirt. In this way, you wil l n o t sc ratch the
paint with coarse particles imbedded in the sponge the next time
you wash the car.
& WARNING
• Do not clean the underside of the cha ssis, fender s, wheel
c overs , or other h ard to rea ch part s without prote cting your h and s
and ar ms. You ma y cut your self on sharp -edged met al part s.
• Alw ays re ad and heed all WARNINGS and other inform atio n
=> pa ge 312 .
0 Note
• Never try to remove d irt, mud or dus t if the surface of the vehicle
is dry. Never use a dry cloth o r sponge, since this cou ld scratch your
vehic le's paint or windows .
• Never wash your car in bright sunl ight. Drops of water act as
magnifying lenses and may damage your pain t.
• When you wash your car in the winter: if you rinse your vehic le
with a hose, be careful not to aim the stream of water directly at locks, or at door or hatch openings -they can freeze shut.
• Never use sponges designed to remove insects, or any k itchen
scouring sponges or similar products. They can damage your paint
fi nish.
• Never use a dry cloth or sponge to c lean the head lights. Only use
wet cloths or sponges to preven t scratches . It is best to use soapy
water .
In the interes t of the environmen t, the vehic le shou ld on ly be
washed in spec ia l wash bays .•
Washing your vehicle with a power washer
Cle aning the exterior of you r ca r with a high- pressure
power washer is safe as long as you observe a few simple rules .
-Before us ing the powe r washer, make su re you have read
and unders tood the WAR NINGS~
& in "General infor ­
mation" o n
page 312.
Always follow the operat ing instructions fo r th e power
washer.
Make sure t hat the jet o n th e sp ray hose p ro d uces a "fa n
sha ped sp ray".
D o
not hold t he spray n ozzle too close to s oft ma te rials .
When cleani ng the vehicle with a power washer always follow the
operating instructions . T his applies particularly to the operating
pressure and the spraying distance. Maintai n a sufficient distance
to soft materia ls such as rubber hoses and sound/vibration dead ­
ening materia ls (pa rt icularly on the underside of the engine hood).
Do not use a jet which sprays water in a direct stream or one that
has a rotating jet.
Water temperature shou ld not exceed 140 °F (60 °C).
& WARNING
Never wash tires with a jet that sp ray s water in a direct stream .
Thi s could cause invisible damage to th e tires and weaken them ,
even if the spray i s from a re lat ively long distan ce and for a short
time . Damaged and weakened t ires can f ail and cause accidents
and person al injury .
~

________________________________________________ T_ i _r_e _s_ a_n_ d_ w_ h_ e_e _ l_s __ PII
•
Tires and wheels
Tires
General notes
Tires may be the least appreciated and most abused parts
of a motor vehicle.
Tires may be the least appreciated and most abused parts of a
motor vehicle. Tires are, however, one of the most important parts
of a vehicle, particularly considering the comparative ly sma ll patch
of rubber on each tire that assures that all- important contact
between you, your vehicle and the road .
Maintaining the correct tire pressure, making sure that your vehicle
and its tires do not have to carry more weight than they can safely
handle, avoiding damage from road hazards and regu lar ly
inspecting tires for damage inc luding cuts , slashes irregular wear
and overa ll condition are the most important things that you can do
to help avoid sudden tire failure including tread separation and
b lowouts .
Avoiding dama ge
If you have to drive over a curb or similar obstacle, drive very slow ly
and as close as possible at a right angle to the curb.
A lways keep chemica ls includ ing grease, oil, gasoline and brake
f luid off the tires.
I nspec t the tires regularly for damage (cuts, cracks or blis ters, etc.l.
Remove any foreign bodies embedded in the treads.
Storing tires
Mark tires when you remove them to indicate the direction of rota ­
tion . This ensu res you to be ab le to mount them correctly when you
reinstal l them. When removed, the wheels or tires shou
ld be stored in a coo l, dry
and preferably dark place.
St ore t ires in a vertical posit ion if they a re not mounted on rims, in
a horizontal position if they are mounted on rims.
New tire s
New tires have to be broken in~&.
The tread dep th of new tires may va ry, according to the type and
make of tire and the tread pattern.
Hidden d ama ge
Damage to tires and rims is often not readily visible. If you notice
unusua l vibration or the vehicle pul ls to one side, this may indicate
that one of the tires has been damaged . The tires must be checked
immed iately by an authorized Audi dealer or qualified workshop .
Unidire ction al tir es
A unidirectio nal tire can be iden tif ied by arrows on the s idewa ll, that
point in the direction the tire is designed to rotate. You must follow
the specified direction of ro tation . This is necessary so that these
tires can deve lop their optimum characteristics regarding grip, road
noise, wear and hydroplaning resistance . For more information
~ page 379.
in. WARNING
Ne w tire s or tire s that are old , worn or damaged cann ot pro vide
m aximum cont rol and braking ability.
• New tire s tend to be slippe ry and m ust be broken in . To redu ce
the risk of losing control, a colli sion and seriou s per sonal injurie s,
drive with speci al care for t he fi rst 350 m ile s ( 560 km l.
• Driving with worn or damaged t ire s can lead to lo ss of co ntrol ,
s udd en tire failure , in clu ding a blowout a nd sudden deflation , .,,_
Vehicle care
I t •

-~_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.