ECU AUDI Q7 2009 Owner´s Manual

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Closing the engine hood
- Pull the hood down until the pressure from the struts is
reduced .
- Let the hood
drop down and latch in place. Do not try to
push it shut;
it may fail to engage => &.
& WARNING
A hood that is not completely latched could fly up and block your
view while driving.
• When you close the engine hood, check it to make sure the
safety catch has properly engaged. The hood should be flush with
the surrounding vehicle body parts.
• If you notice while driving that the hood is not secured prop­
erly, stop at once and close it. •
Working in the engine compartment
Be especially careful whenever you work in the engine
compartment.
Whenever you must perform any work in the engine compartment,
for example checking and filling different fluids, there is a risk of injury, burns and accidents. To prevent personal injury always
observe the following WARNINGS. The engine compartment of any
vehicle is a hazardous area
~ & .
& WARNING
To help avoid injury, before you check anything under the hood :
• Turn off the engine.
• Remove the ignition key.
• Apply the parking brake .
& WARNING (continued)
• Move selector lever to "P" (Park).
• Always let the engine cool down. Hot components will burn
skin on contact.
• To reduce the risk of being burned, never open the hood if you
see or hear steam or coolant escaping from the engine compart­
ment. Wait until no steam or coolant can be seen or heard before
carefully opening the hood.
• Keep children away from the engine compartment .
• Never spill fluids on hot engine components. They can cause a
fire.
• Never touch the radiator fan. The auxiliary electric fan is
temperature controlled and can switch on suddenly.
• Never open the coolant reservoir cap when the engine is still
warm . The coolant system is pressurized and hot coolant could
spray out.
• Protect your face, hands and arm from steam or hot engine
coolant by placing a thick rag over the cap when you open the
coolant reservoir.
• If work on the fuel system or the electrical system is necessary :
- Always disconnect the battery.
- Never smoke or work near heaters or open flames . Fluids in
the engine compartment could start a fire.
- Keep an approved fire extinguisher immediately available.
• To avoid electrical shock and personal injury while the engine
is running or being started, never touch:
- Ignition cables
- Other components of the high voltage electronic ignition system.
• If you must perform a check or repair with the engine running: -First, fully apply the parking brake, move selector lever to "P"
(Park). .,
Vehicle care
I t •

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U.S. DOT Tire Identification Number (TIN) and tire
manufacture date
This is the tire's "serial number". It begins with the letters "DOT"
and indicates that the tire meets all federal 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, the numbers 2208 mean that the tire was
produced in the 22th week of 2008. The other numbers are
marketing codes that may or may not be used by the tire manufac­
turer. This information is used to contact consumers if a tire defect
requires a recall.
Tire ply composition and materials used
The number of plies indicates the number of layers of rubber-coated
fabric in the tire. In general, the greater the number of plies, the
more weight a tire can support. Tire manufacturers also must indi­
cate the materials in the tire, which include steel, nylon, polyester,
and others.
Maximum Load Rating
This number indicates the maximum load in kilograms and pounds
that can be carried by the tire.
Tire quality grading for treadwear, traction, and
temperature resistance
Tread wear, traction and temperature grades~ page 363.
Maximum Permissible Inflation Pressure
This number is the greatest amount of air pressure that should ever
be put in the tire under normal driving conditions.
Replacing tires or rims on vehicles equipped with tire
pressure monitoring system
The wheels on your vehicle are equipped with a sensor which
constantly monitors the air pressure inside the tire, and then trans ­
mits this information to the tire pressure monitoring system. If you
are going to replace the wheel rims on your vehicle, make sure the new rims also have these sensors
. The sensors must be compatible
with the tire pressure monitoring system on your vehicle.
If you install rims, which do not have the sensors, or have sensors
which are not compatible, then the tire pressure monitoring system
will not work properly. In this case, the tire pressure monitoring
system would not be able to monitor the tire pressure or warn you
if it is necessary.
• The battery inside of the tire pressure sensor has a limited
service life.
• Always drive with the valve stem caps securely mounted. We
recommend using factory installed valve stem caps. Ask your autho­
rized Audi dealer to replace lost valve stem caps .
The installation of replacement tires with steel cord body plies in
the tire sidewall may cause malfunction of the tire pressure moni­
toring system, and is not recommended (cord material information
in molded on the tire sidewall).
Always check your tire pressure monitoring system indicator after replacing one or more tires on your vehicle. If the tire pressure
monitoring system indicator flashes, or is on, your system is not
working properly. Your replacement tire might be incompatible with
your tire pressure monitoring system, or some component of the
tire pressure monitoring system may be damaged.
& WARNING
• Using incorrect or unmatched tires and/ or wheels or improper
tire and wheel combinations can lead to loss of control, collision and serious personal injury.
• Always use tires, rims and wheel bolts that meet the specifica­
tions of original factory-installed tires or other combinations that
have been specifically approved by the vehicle manufacturer .
• 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
lower speeds . .,.
Vehicle care
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Remove wheel center covers and trim discs before putting snow
chains on you r veh icle =>
(D. For sa fety reasons c ove r cap s m ust
then be fitted over the wheel bo lts . These are avai lable from autho ­
r ized Aud i deale rs.
& WARNING
Using the wrong snow chains for your vehicle or in stalling them
incorrectly can increase the risk of loss of control leading to
serious personal injury.
• Snow ch ains are available in different sizes . Always make sure
to follow the instructions provided by the snow chain manufac ­
turer .
• When driving with snow chains never drive faster than the
speed permitted for your specific snow chains .
• Always observe local regulations .
0 Note
• Remove sn ow chai ns b efore d rivin g on roads not cove red w ith
snow to avoid damaging tires and wearing the snow chains down
u n n ecessa r i ly.
• Snow chains , which come into d irect contact with t he whee l rim,
ca n scratc h or da mage it. T herefore, ma ke sur e tha t th e snow chains
are suitably covered. Check the position of the snow chains after
dr ivin g a few yards and co rrect if necessa ry . Fo llo w t he instructio ns
from the snow cha in manufacturer when doing so.
• If th e Adapt ive A ir Sus pens io n* shou ld malfunction, do no t
mount or use snow chains because the vehic le wi ll be extremely
lo w. I f yo u do dr ive w ith snow c hai ns o n wh ile t he ve hicle i s a t thi s
level, the snow cha ins might severely damage the wheelhouse and
ot her parts o f the vehicle .
[ i ] Tips
W here snow cha ins are man datory o n certa in roads, t his no rmall y
a lso a pplie s to vehic les with A ll Wheel Drive .•
Wheel bolts
W heel bolt s must alw ays b e tightened t o th e c orr ect
tor que.
The de sign of wheel bo lts is matc hed to the fac to ry instal led rims. If
different rims are fitted, the correct wheel bo lts with the right length
and correctly shaped bolt heads must be used . This ensures that
w hee ls are fitted securely and that t he b rake sys tem functions
co rrectly.
I n certain circums ta nces, you may not use w heel bo lts fr om a
different vehicle -even if it is the same model=>
page 403.
& WARNING
Improperly tightened or mainta ined wheel bolts can become loose
causing loss of control , a colli sion and serious per sonal injury .
• Always keep the wheel bolts and the threads in the wheel hubs
clean so the wheel bolts can turn easily and be properly tightened.
• Never grease or oil the wheel bolts and the threads in the wheel
hubs. They can become loose while d riving if greased or oiled ,
even if tightened to the specified torque.
• Only use wheel bolts that belong to the rim being installed .
• Never use different wheels bolts on your vehicle.
• Always maintain the correct t ightening torque for the wheel
bolts to reduce the risk of a wheel lo ss.
If the tightening torque of
the wheel bolts is too low, they can loosen and come out when the
vehicle is moving . If the tightening torque is too high, the wheel
bolts and th reads can be damaged and the wheel can become
loose .
~
Vehicle care I t •

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& WARNING !continued)
• If you must work under the vehicle, always use safety stands
specifically designed for this purpose.
• Always make sure the inflatable spare tire and even a flat tire
are secured in place and not loose, otherwise they could fly
forward, causing personal injury to passengers in the vehicle in an
accident or sudden maneuver . •
Tools
The tool kit is located in the luggage compartment under
the cargo floor cover.
The onboard tool kit includes:
• Hook for removing wheel covers *
• Plastic hook to remove wheel bolt covers
• Wheel bolt wr ench
• Alignment p in for changing wheels
• Screwdriver with reversible blade
• 10
x 13 open ended wrench
• Towing eye
Fig . 298 Luggage
compartment : vehicle
tool kit
[ i] Tips
Some of the on board items listed above are provided on certain
models only or are optional extras .•
A pp lies to ve hicles: w ith bass box
R emoving bass box
Before the inflatable spare tire can be taken out, the bass
box must be removed.
Fig . 299 Spare wheel
well : Bass box
Removing bass box
- Squeeze the locking tabs~ fig. 299 G) of the connector.
- Disconnect the connector @ and place the lead to one
side.
- Turn the large screw counter-clockwise.
- Carefully remove the bass box.
Installing bass box
-Carefully place the bass box in the wheel. The inscription
" FRONT " on the bass box must face forward.
- Reconnect the connector that was removed.
Vehicle care Do-it-yourself service irechnical data

-What do I do novv? PV:f.,___ ______________ _
-Secu re th e bass b ox w it h t he larg e sc re w. •
Inflatable spare t ire
T he i nfla tab le sp are tir e ex pand s to its full di amet er wh en
it is inflated.
Removing inflatable spare tire
Fig . 300 Inflat able
spare t ire with
compres sor
Li ft up th e carg o floo r u sing the handl e.
- T urn t he l arg e scre w:::> fig. 300 coun ter-c loc kwi se.
Re move the bass bo x as req uir e d :::>
page 371.
- Take o ut th e inflatable s pare t ire.
Stowing the inflatable spare tire
Relea se th e air by un screwing the valve st em .
Sc re w the va lv e st em b ack in afte rwards.
Wait a few hours b efo re pl acin g the wh eel in th e sp are
w he el w ell :::>
& .
Install t he bass b ox as require d:::> page 371.
S ec ure the whe el wit h th e large s cre w. - Fo
ld the cargo floor bac k d own.
After using the inflatable spare wheel
The inflatab le spare ti re can be re-used as long as it is not damaged
an d is n ot worn d own to the tre ad wea r indi cato rs=> &.
When you l et the air out of the inflatabl e spare tir e, it do es not
a ss ume it s fo lded shape aga in for severa l hou rs . U ntil then, it
c annot be plac ed bac k in the sp are whe el well and s tow ed sec urel y.
& WARNING
• Never use the spare tire if it is damaged or if it is worn down to
the tread wear indicators.
• If the inflatable spare tire is more than 6 years old, use it only
in an emergency and with extreme caution and careful driving.
• The inflatable spare tire is intended only for temporary and
short-term use. It should be replaced as soon as possible with the
normal wheel and tire .
• Maximum inflation pressure for the inflatable spare tire is
50 PSI (3 .5 bar).
• Maximum permissible speed is 50 mph (80 km /h ).
• Avoid full -throttle acceleration , heavy braking, and fast
cornering .
• When the air is let out of the inflatable spare wheel , it does not
assume its folded shape for several hours . Until then , it cannot be
placed back in the spare wheel well and stowed securely .
• Never drive with more than one inflatable spare tire.
• For technical reasons , the use of tire chains on the inflatable
spare tire is not permitted . If it is necessary to drive with tire
chains, the inflatable spare wheel must be mounted on the front
axle in the event of a flat in a rear tire. The newly available front
wheel must then be installed in place of the rear wheel with the
flat tire . Installing the tire chain before mounting the wheel and
tire is recommended . .,.

What do I do now? -
---------------~.;______
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& WARNING (continued)
• Loose items in the passenger compartment can cause serious
personal injury during hard braking or in an accident .
- Never store the inflatable spare tire or jack and tools in the
passenger compartment.
- Always store all jacking equipment, tools, and the inflatable
spare tire in the luggage compartment.
- Tighten the knurled retaining screw for the inflatable spare
tire securely.
0 Note
• Th e inflatable spare tire has been developed specifically for this
vehicle model. It must not be exchanged or used for other vehicle
models. Similarly, inflatable tires from other vehicle models must
not be used.
• Normal summer or winter tires must not be installed on the
inflatable tire rim.•
Changing a wheel
Before changing a wheel
Observe the following precautions for your own and your
passenger's safety when changing a wheel.
-After you experience a tire failure, pull the car well away
from moving traffic and try to reach
level ground before
you stop => & .
- All passengers should
leave the car and move to a safe
location (for instance, behind the guardrail)=> &.
- Engage the
parking brake to prevent your vehicle from
rolling unintentionally=> &. -
Move
selector lever to position P =:> & .
- If you are towing a trailer: unhitch the trailer from your
vehicle.
- Block the diagonally opposite wheel with the folding
chocks or other objects.
- Take the
jack and the inflatable spare tire out of the
luggage compartment=>
page 370.
& WARNING
You or your passengers could be injured while changing a wheel if
you do not follow these safety precautions:
• If you have a flat tire, move a safe distance off the road. Turn off
the engine, turn the emergency flashers on and use other warning
devices to alert other motorists.
• Make sure that passengers wait in a safe place away from the
vehicle and well away from the road and traffic.
• To help prevent the vehicle from moving suddenly and possibly
slipping off the jack , always fully set the parking brake and block
the wheel diagonally opposite the wheel being changed with the
folding chocks or other objects. When one front wheel is lifted off
the ground, placing the Automatic Transmission in "P" (Park) will
not prevent the vehicle from moving.
• Before you change a wheel, be sure the ground is level and firm .
If necessary, use a sturdy board under the jack.
• After installing the inflatable spare tire, make sure that you
replace the flat tire/wheel in its storage area properly and tighten
the knurled retaining screw securely. •
Do-it -yourself service

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Changing a wheel
When you change a wheel, follow the sequence described
below step-by-step and in exactly that order.
1. Activate the vehicle jack mode (only vehicles with Adap­
tive Air Suspension) ~
page 210.
2. Remove the decorative wheel cover*. For more details
see also~
page 375, "Decorative wheel covers" or
~ page 375, "Wheels with wheel bolt caps".
3. Loosen the wheel bolts ~ page 376.
4. Locate the proper mounting point for the jack and align
the jack below that point~
page 376.
5. Lift the car with the jack~ page 376.
6. Remove the wheel with the flat tire and then install the
inflatable spare tire =>
page 378.
7. Tighten all wheel bolts lightly.
8.
Lower the vehicle with the jack.
9. Use the wheel bolt wrench and
firmly tighten all wheel
bolts
~ page 376.
10. Replace the decorative wheel cover*.
11. Deactivate the vehicle jack mode (only vehicles with
Adaptive Air Suspension)=>
page 210.
& WARNING
Always read and follow all WARNINGS and information => & in
"Raising the vehicle" on
page 376 and => page 379. •
After changing a wheel
A wheel change is not complete without the doing the
following.
- Store and secure the wheel you replaced in the spare
wheel well.
- Replace the tools and the jack in their proper location.
- As soon as possible, have the
tightening torques on all
wheel bolts checked with a torque wrench. The correct
tightening torque is 120 ft lb (160 Nm).
- Have t he flat tire
replaced as soon as possible.
[ i] Tips
• I f you notice that the wheel bolts are corroded and difficult to
turn while changing a tire, they should be replaced before you check
the tightening torque .
• Drive at reduced speed until you have the tightening torques
checked .•

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Fig. 30 5 Close- up:
prope r po sit io ning of
jack
- Posi tion the jack b elow the doo r sill u nder t he mounting
point
t ha t is clos est to the w hee l to be cha nged
==> p age 376, fi g. 30 4.
- Wind the jack up un der the liftin g p oint un til the c law is
d ir ect ly un der t he ver tical rib on th e ro cke r pane l==:> & .
- Align t he jack so the claw@ grip s the rib on th e rocke r
pane l and th e fl exible base plate @ is flat o n the gr oun d
==> page 3 77, fig. 30 5.
- Wind t he jack up furt her u ntil the flat ti re come s off the
g roun d==:> & .
The jack must be instal led only at the places indicated=> pa ge 376,
fi g. 30 4. T here is e xactl y on e loca tion for each w heel. The jack must
not be positioned at any oth er location =:>& .
A n
unstable surface under the jack can cause the vehic le to s lip off
the ja c k. Al ways pro vid e a firm base for the jack on t he grou nd. If
necessary place a sturd y board or s imilar sup port under the jack. On
hard , slippery surface s {such as tile s) us e a rub ber mat or s imi lar to
p revent the jack from slipping =:>& .
& WARNING
• You or your passengers could be injured wh ile changing a
wheel if you do not follow these safety precautions:
-Positioning the jack under the vehicle at any othe r place than
those indicated above may damage the vehicle or may result in personal injuries.
- A soft or unstable surface under the jack may cause the
vehicle to slip off the jack . Always provide a firm base for the
jack on the ground. If necessary, use a sturdy board under the
jack.
- On hard, slippery surface (such as tiles ) use a rubber mat or
similar to prevent the jack from slipping .
• To help prevent injury to yourself and your passengers:
-Do not raise the vehicle until you are sure the jack is securely
engaged.
- Passengers must not remain in the vehicle when it is jacked
up.
- Make sure that passengers wait
in a safe place away from
the vehicle and well away from the road and traffic.
- Make sure jack position is correct, adjust as necessary and
then continue to rai se the jack.
[ i ] Tips
B efore c hang in g the whee l, you must activate the jac king mode, so
that the au tomatic con trols for the Adaptive Air Suspension * do not
m ak e it mo re diff icu lt to lif t the v ehic le wi th t he jack =:>
page 210. •
Vehicle care Do-it-yourself service irechnical data

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& WARN ING (continued )
• Always make sure the damaged wheel or even a flat tire and
the jack and tool kit are properly se cured in the luggage compart ­
ment and are not loose in the pa ssenger compartment .
• In an a cc ident or sudden maneuver they could fly forward ,
injuring anyone in the vehicle.
• Always store damaged wheel , ja ck and tools securely in the
luggage compartment . Otherwise , in an accident or sudden
maneuver they could fly forward , cau sing inju ry to passengers in
the vehicle .
0 Note
Do not use commercially available tire sealants. Otherwise, the elec ­
trical components of t he tire pressure monitoring system wi ll no
longer work properly and the sensor for the tire pressure moni ­
t ori ng system wi ll have to be replaced by a qua lified workshop .•

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Conn ect POSITIVE (+ ) to PO SITIVE (+ ) (r ed )
- Open the red cover on the pos itive pole => page 388,
fig. 312.
1. Connect one end of the positive cable (red) on the
jump
start bolt=>
page 388, fig. 3 13 G) (Bo lts under red cover
= "positive") of the vehicle to be started @.
2. Connect the other end to the positive terminal@ of the
booster battery ®·
Conn ect NEGATIVE (- ) to NEGATIVE (-) (black )
3. Connect one end to the negat ive termi nal 0 of t he
boos ter battery ®·
4 . Connect the other end of the negative cable (black) to the
jump sta rt bolt 0 (Bolts with hex head = "n egative") of
the vehicle to be s tarted @.
Startin g th e e ngin e
-Start the engine of the veh icle w ith the booster battery .
Run t he engine at a moderate speed .
- Start engine with discharged ve hicle battery in the usual
ma nner.
- If the engine fails to s tart: do not keep the star ter
cranking for longer than 10 seconds. Wait f or about
30 seconds and then try again.
- With engine running, remove jumper cables from both
vehicles in the exact reverse order.
- Close the red cover on the positive pole.
The battery is vented to the outside to prevent gases from entering
the vehic le interior . Make sure that the jumper clamps are well connected with their
metal parts in full contact with the battery
t erminals .
& WARNING
To avoid seriou s per sonal in jur y a nd d amage to the vehicle , heed
a ll wa rning s and in stru ction s o f th e jum per ca ble man ufa cturer . If
in doubt , call for ro ad serv ice.
• Jump er c able s must b e lo ng eno ugh s o that the vehi cle s do not
touch .
• When conne cting jumpe r cable s, ma ke sure th at the y cannot
g et caught in an y mo ving p arts i n the engine comp art m ent .
• Before you che ck anyth ing in the en gin e com partm ent , a lwa ys
r ea d and h eed all W ARNIN GS~ pag e 32 4, "E ngine compa rtm ent ".
0 Note
Improper hook -up of jumper cables can ruin the generato r.
• Always connect POSITIVE(+) to POS ITIVE( +), and NEGATIVE( -) to
NEGATIVE( -) ground post of the battery manager control unit.
• Check that al l screw p lugs on the battery ce lls are screwed in
firm ly . If not, tighten plugs prior to connecting clamp on negative
battery termi nal.
• Please note that the procedure for connecting a jumper cab le as
described above applies specifical ly to the case of your vehicle
being jump started. When you are giving a jump start to another
vehicle, do not connect the negative(-) cable to the negative (-1
terminal on the discharged battery©~ page 388, fig. 313. Instead,
securely connect the negative ( -1 cable to either a solid metal
component that is firmly bolted to the engine b lock or to the engine
block itself . If the battery that is being charged does not vent to the
outside, escap ing battery gas could ignite and exp lode! •
Do-it-yourself service