2009 AUDI Q7 wheel alignment

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make, there will be six to eight of them evenly placed around the
tire. Marks on the tire sidewall (for example "TWI" or other symbols)
indicate the positions of the tread wear indicators. Worn tires must
be replaced. Different figures may apply in other countries=>& .
Tire pressure
Incorrect tire pressure causes premature wear and can cause
sudden tire blow-out. For this reason, tire pressure must be checked
at least once a month =>
page 353.
Driving style
Driving fast around curves, heavy acceleration and hard braking
increase tire wear.
Rotating tires for more even wear
For all four tires on your vehicle to have the same service life, we
recommend that the front and rear tires are rotated according to the
tire manufacturer's suggested tire rotation intervals. Please
remember the following:
• Tire rotation intervals may differ from the vehicle service inter­
vals outlined in your Warranty
& Maintenance booklet.
• The longer one tire is used in one location on the vehicle , the
more it wears at certain points; therefore, we recommend that you
follow the tire manufacturer's suggested tire rotation intervals .
• Vehicles with front-wheel drive experience more tread wear on
the front wheels compared to all-wheel drive (quattro ®l.
• Please rotate tires as shown =>
page 357, fig. 294.
• Extra care must be taken when rotating direction-specific tires
=>
page 379.
Wheel balancing
The wheels on new vehicles are balanced. However, various situa­
tions during everyday driving can cause them to become unbal ­
anced, resulting in vibrations you can usually feel through the
steering wheel. Unbalanced
wheels must be rebalanced to avoid excessive wear on
steering, suspension and tires. A wheel must also be rebalanced
when a new tire is installed.
Incorrect wheel alignment
Incorrect wheel alignment can cause excessive tire wear , impairing
the safety of the vehicle. If tires show excessive wear, have the
wheel alignment checked by an authorized Audi dealer or qualified
workshop.
All Wheel Drive
Vehicles with quattro® must always have tires of the same size,
construction and tread type. For details see=>
page 294.
& WARNING
Sudden tire failure can lead to loss of control, a crash and serious
personal injury!
• Never drive a vehicle when the tread on any tire is worn down
to the wear indicators.
• Worn tires are a safety hazard, they do not grip well on wet
roads and increase your risk of "hydroplaning" and loss of control.
• Always keep chemicals that can cause tire damage, such as
grease, oil, gasoline and brake fluid away from tires .
• 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 .
• 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. •

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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

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Taking the wheel off/installing the inflatable
spare tire
Follow these instructions step -by-step for changing the
wheel
Fig. 306 C han ging a
w heel : align ment pin
insid e the to p ho le
After you have loosened all wheel bolts and raised the
vehicle off the ground, remove and replace the w heel as
follows :
Removing the wh eel
- Remove the topmost wheel bolt complete ly and set it
aside on a clean surface.
- Screw the t hreaded end of the alignment pin from the
tool kit hand-tight into the empty bo lt hole ~ page 378,
fig. 306.
T hen remove the other wheel bolts as descr ibed above.
- Take off the wheel leaving t he alignment pin in the bolt
hole .
Putting on the inflatable spare tire
-Inflate the inflatable spare tire~ page 378 and push the
wheel over the alignment pin . - Sc
rew in and tighte n all wheel bolts slightly.
- Remove the a lignment pin and insert and tighten the
remaining wheel bolt slig htly like the rest.
- Tu rn the jack handle counter -c lockwise to lower the
veh icle until the jack is fully released.
Use the wheel bolt w rench to tighten a ll wheel bolts
firmly ~ page 376. Tighten them crosswise, from one
bolt to the (approximately) opposite one, to keep the
wheel centered .
[ i ] Tip s
• When mounting tires with un idi rect io n al t rea d de sign make sure
the tread pattern is pointed the right way =>
page 379.
• The whee l bolts should be clean and easy to turn. Check for dirt
and corrosion on the mating surfaces of both the wheel and the
hub . Remove a ll dirt from these surfaces before remounting the
wheel. •
Inflating inflatab le spare tire
- Remove the compressor from the luggage compartment
~ page 372, fig. 300.
- Unscrew the va lve stem f rom t he spare tire.
- Screw the ti re fi lier hose f rom the compress or firmly o nto
the valve of t he spare tire.
- Insert the plug from the comp ressor into a socket of the
veh icle ~ page 118.
- Sw itch the compressor on .