2013 AUDI Q7 wheel alignment

2 90 Tires and wheels
Tire service life
The service life of tires depends on a lot of
different things including proper installation
and balancing, correct tire pressure and driv­
ing style.
F ig. 2 53 Tire tread: tread wea r ind icators (TWI)
F ig. 25 4 Rotat ing t ires for more even wear
Tr ead Wear Indicator (TWI)
The o rigi na l t ires on your veh icle have
1/16 inch (1.6 mm) high "wear indicators"
.... N M
c::> fig . 253 running across the tread. Depend ­
ing on the make, there will be six to eight of
them evenly p laced around the t ire. Marks on
the tire sidewa ll (for example "TWI" or other
symbols) indicate the positions of the tread
wear ind icators . Worn t ires must be replaced .
Different fig ures may apply in o ther countries
c::> & .
Tire p ressure
Incorrect tire pressure causes premature wear
a nd can cause sudden t ire blow-out. For t his
reason, tire pressure must be checked at least
once a month
c::> page 2 86.
Driving style
Driving fast aro und curves, heavy acce leration
and hard braking increase tire wear.
Rotating tires for more even wear
F or all four tires on your ve hicl e to h ave the
same service life, we recommen d that t he
front and rear t ires are rotated according to
the tire manufact urer's suggested tire rota­
tion intervals. Please remember the follow­ ing:
- Tire rotation intervals may differ from the
vehicle service inte rva ls o utlined 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 manufact urer's suggested
tire rotation intervals .
- Vehi cles w ith front-wheel dr ive experience
more tread wear on the fro nt w heels com­
pa red to all-wheel drive (quattro ®).
- Please rotate tires as shown
c::> fig. 254.
-Extra care must be taken when rotating di-
rection-specific tires
c::> page 308.
Wheel balancing
The wheels on new ve hicles are balanced .
However, various situations during everyday
driving can cause them to become unba l­
anced, resulting in vibrat ions you can usually
feel through the steer ing wheel.
Un balanced whee ls must be rebalanced to
avo id excessive wear on steering, suspension
and t ires. A whee l m ust also be reba lanced
when a new tire is insta lled.
Incorrect wheel alignment
Incor rect w heel alig nment can cause exces ­
sive tire wear, impairing the safety of the vehi ­
cle . If tires show excessive wear, have the
whee l alignment checked by an aut horized
Audi dealer or qualif ied workshop .
All-wheel drive
Vehicles with q uattro ® mus t always have tires
of the same size, construction and tread type.
For details see
c::>page 231. ..,.

What do I do now?
Jack, tools and
inflatable spare tire
Tools
The tool kit is located in the luggage com­
partment under the cargo floor cover.
F ig . 257 Luggage compa rtme nt: ve hicle tool ki t
The on board tool kit includes:
- Hook for removing wheel covers*
- Plastic hook to remove wheel bolt cove rs*
- Wheel bolt wrench
- Alignment pin for changing wheels
- Screwdriver with reversible blade
- 10 x 13 open ended wrench
- Towing eye
@ Tips
Some of the onboard items listed above
are prov ided on certa in models only or are
optional extras .
What do I d o now ? 301
Jack and folding chocks
The jack and the folding chocks are located in
the luggage compartment under the cargo
floor cover.
F ig . 258 Luggage compar tme nt ve hicle jack and fold ·
i ng chocks
--------
F ig. 259 Opening fo ldi ng chocks
Vehi cle jack
The jack is located under the tool kit
¢ fig . 258. Before storing the jack, make sure
it is wound back down as far as it will go.
Folding chocks
Two unassembled fo lding c hocks are attached
to the foam section at the front with the jack
¢fig . 258.
Re lease the two hook-and-loop fasteners, and
remove the two chocks. To use the chocks, you
first have to raise the support plate
¢ fig . 259 (D and then insert the locking plate
with the two "tabs" into the elongated ho les
in the base plate @¢.&. .
A WARNING
-The chock cannot fulfill its function and
may lose its stability if the "tabs" on the
support p late are not inse rted co rrectly
into the elong ated holes in the base

_& WARNING
-You or your passengers could be injured
while changing a wheel if you do not
follow these safety precautions:
- Position the jack only at the designated
lifting points and align the jack. Other­
wise, the jack could slip and cause an
injury if it does not have sufficient hold
on the vehicle.
- 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 ve­
hicle 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, ad­
just as necessary and then continue to
raise the jack.
(D Note
Do not lift the vehicle by the sill. Position
the jack only at the designated lifting
points on the sill. Otherwise, your vehicle
will be damaged.
What do I do now? 307
Taking the wheel off/installing the inflatable spare tire
Follow these instructions step-by-step for
changing the wheel
Fig. 267 Chan gin g a w hee l: alignment p in inside the
to p ho le
After you have loosened all wheel bolts and
raised the vehicle off the ground, remove and
replace the wheel as follows :
Removing the wheel
.. Remove the topmost wheel bolt completely
and set it aside on a
clean surface.
.. Screw the threaded end of the
alignment
pin from the tool kit hand-tight into the
empty bolt hole
~ fig . 267.
.. Th en remove the other wheel bolts as de­
scribed above.
.. Take off the wheel leaving the alignment
pin in the bolt hole
~ 0.
Putting on the inflatable spare tire
.. Inflate the inflatable spare tire ~ page 303
and push the wheel over the alignment pin.
.,. Screw in and tighten all wheel bolts
slight­
ly.
.. Remove the alignment pin and insert and
tighten the remaining wheel bolt slightly
like the rest .
.. Turn the jack handle counter-clockwise to
lower the vehicle until the jack is fully re­
leased .
.,. Use the wheel bolt wrench to tighten all
wheel bolts firmly ~
page 305. Tighten
them
crosswise, from one bolt to the (ap­
proximately) opposite one, to keep the
wheel centered.