width AUDI TT ROADSTER 2008 Owners Manual

objects are left inside the vehicle, they should be locked in the
luggage compartment. •
Applies to vehicles: with manual folding top
Opening the Folding Top Manually
LY.
-Apply the hand brake firmly.
Fig . 47 Locking handle
Fig . 48 Folding top
open a hand's width
- Remove any objects from the storage compartment to
prevent damage to the folding top and the rear window.
- Fold the locking handle down
~ fig. 47.
- Turn the handle counter-clockwise as far as it will go and hold it .
Contro ls and eq uip­
ment
Folding top
- Push the released folding top up by the locking handle
and open it about the width of a hand
~ fig. 48.
- Exit the vehicle.
- Lift the folding top at the front and guide it to rear into
the storage compartment as far as it will go.
- Push the folding top down into the tonneau until you
hear it click into place.
- Fold the covers down
~ page 66, fig. 56.
The folding top is completely open when the indicator light in the
instrumen t cluster goes out. The door windows are automatically
lowered about 20 mm while the top is opening.
& WARNING
For safety reasons, the folding top may only be unlocked when the
vehicle is stationary .•
App lies to ve hicles: with manua l folding top
Closing the Folding Top Manually
Fig. 49 Handle
between the seatbacks ...
Vehicle care I I Technical data

-~_T_ ir_e_ s_ a_ n_d _ w_ h_ e_e _l_s _________________________________________________ _
Groove
means the space between two adjacent tread ribs.
Load rating (code)
means the maximum load that a tire is rated to carry for a given
inflation pressure . You may not find this information on all tires
because it is not required by law.
Maximum load rating
means the load rating for a tire at the maximum permissible infla­
tion pressure for that tire.
Maximum loaded vehicle weight
means the sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight, and
(d) Production options weight
Maximum (permissible) inflation pressure
means the maximum cold inflation pressure to which a tire may be
in flated. Also called "maximum inflation pressure ."
Normal occupant weight
means 150 lbs. (68 kilograms) times the number of occupants
seated in the vehicle up to the total seating capacity of your vehicle.
Occupant distribution
means distribution of occupants in a vehicle .
Outer diameter
means the overall diameter of an inflated new tire.
Overall width
means the linear distance between the exteriors of the sidewalls of
an inflated tire, including elevations due to labeling, decorations, or
protective bands or ribs .
Ply
means a layer of rubber -coated parallel cords.
Production options weight
means the combined weight of those installed regular production
options weighing over 5 lbs. (2.3 kg) in excess of those standard
items which they replace, not previously considered in curb weight
or accessory weight, including heavy duty brakes, ride levelers,
heavy duty battery, and special trim.
Radial ply tire
means a pneumatic tire in which the ply cords that extend to the
beads are laid at substantially 90 degrees to the centerline of the
tread.
Recommended inflation pressure
see =:> page 239, "Cold tire inflation pressure".
Reinforced tire
means a tire designed to operate at higher loads and at higher infla­
tion pressures than the corresponding standard tire. Reinforced
tires my be identified as "XL", "xi", "EXTRA LOAD", or "RF" on the
sidewall.
Rim
means a metal support for a tire or a tire and tube assembly upon
which the tire beads are seated .
Rim diameter
means nominal diameter of the bead seat. If you change your wheel
size, you will have to purchase new tires to match the new rim diam ­
eter.
Rim size designation
means rim diameter and width.
Rim width
means nominal distance between rim flanges .

__________________________________________________ T_ ir_e _ s_ a_ n _ d_ w_ h_ e_ e_ls _ ____. 111111
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
Incorr ect 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 191.
& 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. •
New tires and replacing tires and wheels
New tires and wheels have to be broken in.
Fig. 164 Tire specification codes on the sidewall of a tire
No.
©
0
©
©
©
©
Description
Passenger car tire (where app licable)
Nominal width of tire in mi llimeters
Ratio of height to width (aspect ratio)
Radial
ii Rim diameter code
Load index and speed rating
Vehic le care
I I irechnical data

.,,.___T_ ir_e_ s _ a_ n_d_ w_ h_ e_e _ l_s _________________________________________________ _
0
©
G)
U.S. DOT tire identification number
Sever snow conditions
Tire ply composition and materials used
Maximum load rating
Treadwear, traction and temperature grades
@ Maximum permissible inflation pressure
The tires and rims are essential parts of the vehicle's design. The
tires and rims approved by Audi are specially matched to the char­ acteristics of the vehicle and can make a major contribution to good
road holding and safe handling when in good condition and prop ­
erly inflated =>& .
We recommend that al l work on tires and wheels be performed by
an authorized Audi dealer . They are familiar with recommended
procedures and have the necessary special tools and spare parts as
we ll as the proper facilities for disposing of the old tires .
Authorized Audi dealers have the necessary information about tech ­
nical requirements for insta lling or changing tires and rims .
Rep lac ing t ires a nd w heels
Tires should be replaced at least in pairs and not individually (for
example both front tires or both rear tires together) .
Be sure to read and heed the information to the tire pressure moni ­
toring system =>
page 251.
Always buy replacement radial tires t hat have the same specifica ­
tions as the tires approved for your vehicle by Audi . Replacement
tires must always have the same load rating specification as the
original equipment or approved optional tires listed in the table
=>
page 242.
Audi -approved specification tires are specially matched to your
vehic le and its load limits, and can contribute to the important road- holding, driving characteristics, and safety of the vehicle
. The tab le
( =>
page 242) lists specifications of the tires approved for the Audi
models covered by your Owner's Literature.
The tire pressure labe l located on driver's side 8 -pillar (=>
page 242,
fig. 161) lists the spec ifications of the original equipment tires
installed on your vehicle at the time it was manufactured.
Federal law requires tire manufacturers to place standardized in for­
mation on the sidewall of all tires=>
page 249, fig. 164 . T his informa­
tion identifies and describes the fundamenta l characteristics, the
quality grade of the tire and also provides a tire identification
number for safety standard certification and in case of a recall.
T ire s pec ifica tio ns
Know ledge of tire specifications makes it easier to choose the
correct tires . Radial tires have the tire specifications marked on the
sidewal l, for example:
P 2 45 / 45 R 17 95 H
This contains the following information :
P Indicates the tire is for passenger cars
24 5 Nominal tire width in mm of the tire from sidewall edge to side-
wa ll edge . In general, the larger the number, the wider the tire
45 Height/width ratio in percent (aspect ratio)
R Tire construction: Radial
17 Rim diameter code (in inches)
95 Load rating code
H Speed rating letter code
X L (or "xi", "EXTRA LOAD", or "RF") indicates that the tire is a"Rein ­
forced" or an "Extra Load" ti re
M+ S (or "M/S") Indicates that the tire has some mud and snow capa ­
bility
The tires could also have the information of direction of rotation =>
page 238.

Tires a nd wh eels -
----------------
•
0 Note
• For technical reasons, it is not genera lly possible to use the
whee l rims from other vehic les. This can hold true for wheels of the
same vehic le type.
• If the spare tire is different from the tires that you have mounted
on your vehicle (for example winter tires or wide p rofile t ires), then
use the spare tire for a short period of time only and drive with extra
care. Rep lace the flat tire with the tire matching the others on your
vehicle as soon as possible.
• If you should put different wheels and tires on your vehic le (e.g.
winter wheels and tires), you must be certain that the wheels and
tires are compat ib le w ith the tire pressure monitoring system.
Otherwise the system will register a malfunction and a fault
message will be displayed . For more informatio n, contact your Aud i
dea ler.
0 Note
• When insta lling new tires, be carefu l not to damage the va lves or
t ire p ressure moni toring syste m sensors .
• Never drive without the va lve stem cap. The va lves could get
damaged.
• I f the sensors must be replaced, then the valve must also be
replaced at t he same t ime.
Dispose of o ld tires in accordance with the local requ irements .•
Uniform tire quality grading
• Tread wear
• Traction AA A B C
• Temperature A B C Qua
lity grades can be found where applicable on the tire side wall
b etween tread shoulder a nd maximum section width =>
page 249,
fig. 164.
For example : Tread wear 200, Traction AA , Temperature A.
All passenger car tires must conform to Federa l Safety Require ­
ments in addit ion to these grades.
T read wear
The tread wear grade is a comparative rating based on the wear rate
o f t he tire when tes ted under contro lled condit ions on a specified
government test course.
F o r example, a tire g raded 150 would wear one and one half (1 1 /2)
times as well on the government course as a tire graded 100.
The relative performance of tires depends upon the actual condi ­
tions o f the ir use, however, and may depart sign ificantly from the
norm due to variations in driving habits, service practices and differ ­
ences in road characterist ics and c limate .
Traction
The traction grades, from highest to lowest, are AA, A, Band C.
Those grades represent the tire 's ability to stop on wet pavement as
measured under contro lled cond itions on specified government
test surfaces of asphalt and concrete. A tire marked C may have
poor t raction performance =>& .
Temperature
The temperature grades are A (the highest), B, and C, represent ing
the tire 's resistance to the generation of heat and its ability to dissi ­
pat e heat when tested u nder con tro lled co nditions on a specified
indoor laboratory test wheel.
Sustained high temperature can cause the material of t he ti re to
degenerate and reduce tire life, and excessive temperature can lead
to sudden tire failure=:>& .
The grade C corresp onds to a level of performance which all
passenger car tires must meet under the Federa l Motor Vehicle
Vehicle care I t •

_L_T~ir ~e :..:s~ a~n~ d~ w~ h ~e~e~ l~ s '.,_ ______________________________________________ _
Wheel bolts
W heel b olts mus t al wa ys be tigh te n ed to t he cor rect
to rqu e.
The design of wheel bolts is matched to the factory instal led rims . If
d ifferen t rims are fitted, the co rrect w heel bo lts wit h th e rig ht length
and correctly shaped bolt heads m ust be used. This ensures that
w hee ls are fitt ed s ecure ly a nd th at t he brake sys te m funct ions
correctly .
I n certain circums tances, yo u may no t use w heel b olts fr om a
differ ent vehicle -even if it is the same model::::;,
page 296.
&_ WARNING
Improperly tightened or maintained wheel bolts can become loose
causing loss of control , a collision and serious personal 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 driving 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 tightening torque for the wheel
bolts to reduce the risk of a wheel loss. 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 .
0 Note
The specified torque for the wheel bolts is 90 ft lb (120 Nm) with a
t ole ranc e of ± 7,4 ft lb(± 1 0 Nm). To rque whee l bolts diag onally.
After changing a wheel, the torque must be checked as soon as possible with a to
rque wrench -preferab ly by an authorized Audi
dea ler o r qu alif ied wo rksh op.•
Low aspect ratio tires
Yo ur Audi is fac tory-equip ped wi th l ow asp ect rati o tires. Th ese tires
have been thorough ly tested and been selected specifically for your
mod el for thei r su per b p erfo rma nce, road feel an d handl in g u nder
a variety of driving conditions . Ask your author ized Aud i dea ler for
mo re deta ils.
T he low aspec t ra tio o f th ese t ires is ind icate d by a numera l o f 55 or
less in the t ire's size designation. The numera l represents the ratio
of the ti re's s idewa ll height in re la ti on to its tread w idth e xpress ed
in percentage. Conventiona l tires have a height/width ratio of 60 or
mo re .
The performan ce of low -aspect -ratio t ires is part icularly sensitive to
improper inflation pressure . It is therefore important that low
aspect ratio tires are inflated to the specified pressure and that the
inflation pressure is regularly checked and maintained. Tire pres­
sures should be checked at least once a month and alway s before a
long trip::::;,
page 244, "Checking tire p ressure".
What you can do to a void tire and rim damage
L ow a spect ratio tires can be damaged more easi ly by impact with
potho les, curbs, gull ies or ridges on the road, particularly if the t ire
is underinflated.
In orde r to minimi ze the occurrence o f im pact da mage to th e tire s
of your vehicle, we recommend that you observe the fo llowing
p reca utions:
• Always ma intain reco mm ende d inflat io n pressu res . C heck your
tire p ressure every 2, 000 miles (3 ,000 km) and add ai r if neces sary .
• D rive car eful ly on roads with potholes, deep gullies or ridges.
Th e impact from d riving th ro ugh o r ove r such o bstac les can
dama ge you r tires . Impact w ith a curb may also cause da mage to
your tires . .,_

_______________________________________________________ D_ a _ t_a __ llll
Data
A pplie s t o vehic les: w it h 2 .0 lit er 4-cy l. engi ne
200 hp, 2.0 liter 4-cyl. turbo engine
Engin e da ta
Maximum output SAE net
Maximum torque SAE net
No . of cylinders
Displacement
Stroke
Bore
Compression ratio
Fuel
Dim ension s (app rox.)
Length (with licence plate bracke t)
Width (across mirrors)
Height (unloaded)
Turning circle diameter (curb to curb)
Ca pac ities (a pprox.)
F u el t ank
-Total capacity
- Reserve (of total capacity)
Wind shi eld and he adli ght * was her fluid container
E ngine oil
with filter change
Controls and equip­
ment Safety first
hp@rpm
lb-ft@ rpm
CID (cm
3
)
in (mm)
in (mm)
200@ 5100 -6000
207 @ 1800 -5000
4
121 (1984)
3.65 (92.8)
3 .25 (82.5)
10.3 : 1
Premium unleaded (91 AKI) Recommended for maximum engine performance. Fur ­
ther details =>
page 274, "Gasoline"
in (mm)
in (mm)
in (mm)
ft. (ml
164 .5 (4178)
76.9 (1952) 53 .2 (1352)
34 .7 (10.60)
gal/litres
gal/litres
quarts/litres
quarts/l itres 14.5 / 55 .0
1 .9 / 7.0
4.3
I 4.0
4.8
I 4.5 •
Vehicle operation Vehicle care Do-it-yourself service Tec hn ica l da ta

___ D_ a_ ta ______________________________________________________ _
Applies to vehicles : wit h 3.2 liter 6-c yl. en gine
250 hp, 3 .2 liter 6-cyl. engine
Engine data
Max imum output SAE net
Maximum torque SAE net
No . of cy linders
Di spl acement
Stroke
Bo re
Comp ress ion ratio
Fuel
Dimensions (appro x.>
Length (with licence plate brac ket)
Width (across mirrors) Height (un loaded)
Tur ning c ircle diameter (curb to curb)
Capacities {approx .>
Fuel tank
-To tal capacity
- Reserve (of total capacity)
Windshield and headlight* washer fluid container
Engine oil
with filter change hp@ rpm
lb-ft@ rpm
CID (cm
3
)
in (mm)
in (m m)
250@6300
236 @ 2500 -3000
6 cylinder
195 (3189)
3 .77 (95 .9)
3 .30 (84 .0)
11 .25 : 1
Premium unleaded {91 AKll Recommended for maximum engine performance . Fur ­
t her deta ils =:>
page 214 , "Gasoli ne"
in (m m)
in (m m)
in (mm)
ft . (ml
16 4.5 ( 41 78)
76.9 (1952)
53 .2 ( 1352)
3 4. 7 (10 .60)
gal/litres
gal/ lit res
quarts/litres
quarts/l it re s 16.3 / 62 .0
1 .9 / 7 .0
4.3
I 4 .0
5.8 / 5.5
•