wheel alignment AUDI TT ROADSTER 2014 Owners Manual

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. 14 0 Tire tread: tread wea r ind ica tors (TWI)
f ~----~
~ ------- .../
Fig. 141 Rotat ing t ires fo r m ore even wea r
Tread Wear Indicator (TWI)
The origina l tires on your veh icle have
1/16 in ch (1.6 mm) high "wear ind icators"
c::> fig . 140 run ning 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 t ire s idewall (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 other countries
c::> & .
Tir e pressure
Incorrect tire pressure causes premat ure wear
and can cause sudden tire blow-out . For th is
reason, tire pressure must be checked at least
once a month
c::> page 18 7.
Dri ving sty le
Driving fast around curves , heavy acceleration
and hard braking increase tire wear.
Tires and wheels 191
Rotating tires for more even wear
For all four tires on your ve hicl e to have the
same service life, we recomme nd that the
front and rear tires are rotated according to
the tire manufacturer 's suggested tire rota­
tion inte rvals. Please remember the follow ­
ing :
- Tire rotation intervals may differ from the
veh icle 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 manufactu rer 's suggested
tire rotation intervals .
- Vehicles w ith front-wheel dr ive exper ience
more tread wear on the front wheels com­
pared to all -wheel d rive (quattro) .
- Please rotate tires as shown
c::> fig. 141.
-Extra care must be taken when rotat ing di-
rection-specific tires
c::> page 212.
Wheel balancing
T he wheels on new veh icles 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.
Unbalanced wheels must be rebalanced to
avoid excessive wear on steering, s uspension
and t ires. A whee l must also be reba lanced
when a new tire is insta lled.
Inco rrect wheel alignm ent
Incorrect wheel alignment can cause exces­
sive tire wear, impai ring the safety of the vehi­
cle . If tires show excessive wear, have the
whee l alignment checked by an authori zed
Audi dealer or qualified workshop.
all -wheel drive
Vehicles wi th quattro must always have tires
of the same size, construction and tread type. For details see
c::> page 147.

What do I do now? Trunk escape handle
In case of an emergency, the rear lid can be
opened from the inside using the trunk es­
cape handle .
Fig. 148 Luggage compa rtment: Tr unk escape handle
"' To open the trunk lid pu ll the handle down
as indicated by the -arrow-~
fig. 148.
The trunk escape handle inside the storage
compartment is made of fluorescent materia l
to g low in the dark.
& WARNING
The trunk escape handle is to be used only
in an emergency .
Vehicle tool kit
The tools ore stored underneath the floor
panel in the luggage compartment.
F ig. 1 49 Luggage co mpa rt ment : veh icle tool ki t
"'Swing the luggage compartment floor up­
wards.
"' Remove the vehicle tool k it.
The onboard tool kit includes:
What do I d o now ? 205
- Hook for removing wheel covers*
- Plastic clip to remove wheel bo lt covers*
- Wheel bolt w rench
- Alignment pin for changing wheels
- Screwdriver with reversible blade
- Replacement bit (reversible Torx bit for changing lamps)
- Open ended wrench 10 x 13
- Towing eye
- Jack*
Some of the on board items listed above are
provided on ce rtain mode ls only or are option­
al ext ras.
Before returning the jack* to its place, retract
the jack arm fu lly.
& WARNING
Improper use of the vehicle jack can cause
serious pe rsonal injuries .
- Never use the screw drive r hex head to
tighten wheel bo lts, since the bolts can­
not attain the necessary tighte ning tor­
que if you use the hex head, potentially
causing an accident.
- The factory-supplied jack is intended on­
ly for yo ur vehicle model. Under no ci r­
cumstances should it be used to lift
heavy veh icles or other loads; you risk in­
juring yourself .
- Never start the engine when the vehicle
is raised, wh ich could cause an accident.
- Support the vehicle securely with appro­
priate stands if work is to be performed
underneath the vehicle; otherwise, there
is a potential risk for injury.
- Never use the jack supplied with your Audi on another vehicle, particularly on a heav ier one . The jack is only suitable for
use on the veh icle it came with .

slip and cause an injury if it does not
have sufficient hold on the veh icle.
- 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 u nti l yo u are
sure the jack is sec urely engaged .
- Pa ssenge rs must not remai n in the ve­
h icle when it is jacked up.
- Make sure that passengers wait in a
safe pl ace away from the vehicle and
well away from the roadway and traffic.
- Make sure ja ck position is correc t, ad­
just as necessary and then continue to
ra ise the jack .
(D Note
A floor jac k or the pads o n the hoist arms
m ust
n ot be po sit ioned at the po ints
shown
-arrows- .
Taking the wheel off
Follow these instructions step-by-step for
changing the wheel.
Fig . 159 W hee l ch ange : us ing th e sc rewdr ive r hand le
(w ith t he blade re m ove d) to turn t he bo lts
What do I d o now ? 211
Fig . 1 60 W hee l cha nge : alignmen t pin inside the top
ho le
After yo u have loosened all wheel bo lts and
raised the vehicle off the ground, perform the
follow ing steps to remove and replace the
whee l:
Remo ving the wheel
.,. Use the he xagonal socket in the scr ewdri v­
er handle
to completely turn out the top ­
most whee l bolt and set it aside on a
clean
surface ¢ fig. 159.
.,. Screw the threaded end of the alignment
pin
from the tool kit hand-tight into the
now vacant bolt hole¢
fig. 160 .
.,. Then completely unscrew the other wheel
bolts as desc ribed above.
.,. Take off the whee l leaving the alignment pin
in the bo lt ho le ¢ (D.
Putting on th e wheel
.,. Lift the spare wheel and carefully slide it
over the alignment p in to guide it in place
Q (D .
.,. Use the hexagona l socket in the screwd river
handle to screw in and tig hten all whee l
bolts
slightly .
.,. Unscrew the alignment p in and insert and
tighten the remaining wheel bolt slightly like the rest .
.,. Turn the jack handle counter-clockwise to
lower the veh icle until the jack is fully re­
leased .
.,. Use the whe el bo lt wrench to tighten all
wheel bo lts fi rm ly
Q page 209 . Tighten
t hem
crosswise, from one bolt to the (ap­
proxima tely) opposi te one, to keep t he
wheel cente red.