2008 AUDI TT ROADSTER wheel bolt torque

_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 . .,_

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App lies to veh ic les : w it h cap-cove red whee l bo lts
Wheels vvith cap -covered wheel bolts
The caps must be removed first from the wheel bolts
before the bolts can be unscrewed .
Remo ving
Fig . 172 W hee l
c h an ge: remo vin g t he
wh eel b olt caps
- Push the plasti c clip provided with t he on board tool kit
down over the wheel bo lt cap until it engages.
- Pull on the properly engaged plas tic c lip to ex tract the
cap
=> fig. 172 .
Refi tt ing
- Place the caps over the wheel bolts and push them back
1n.
The caps are there to prot ect and keep th e wheel bolts cl ean .•
Loosening and tightening the wheel bolts
The wheel bolts must be loosened before raising the
vehicle .
Lo os enin g
Fig. 173 Wheel
c h an ge : loose nin g the
wheel bol ts
- Fit the wheel b olt wr ench over the wheel bolt and push it
down as far as it wi ll go .
- Close your grip around the
end of the wrench hand le for
maximum torque and turn the wheel bolts counter-c lock ­
wis e about
one single turn in the direct ion of arrow
=> f ig . 173 .
Tight ening
Fit the wheel b olt wr ench ove r the wheel bolt and pus h it
down as far as it wi ll go.
- Close your gri p around the
end of the wrench hand le for
ma ximum torque and turn eac h wheel bolt clockwi se
until it sits tight . _..

What do I do now? -
----------------
•
-Screw the threaded end of the alignment pin from the
tool kit hand-tight into the now vacant bolt hole
=:> page 270, fig. 177.
- Then completely unscrew the other wheel bolts as
described above.
- Take off the wheel leaving the alignment pin in the bolt
hole.
Putting on the wheel
- Lift the spare wheel and carefully slide it over the align­
ment pin to guide it in place.
- Use the hexagonal socket in the screwdriver handle to
screw in and tighten all wheel bolts slightly.
- Unscrew 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 released.
- Use the wheel bolt wrench to tighten all wheel bolts
firmly =:> page 268. Tighten them crosswise, from one
bolt to the (approximately) opposite one, to keep the
wheel centered.
[ i J Tips
Never use the hexagonal socket in the handle of the screwdriver to
loosen or tighten the wheel bolts.
• Pull the reversible blade from the screwdriver before you use the
hexagonal socket in the handle to turn the wheel bolts.
• When mounting tires with
unidirectional tread design make sure
the tread pattern is pointed the right way~
page 272.
• The wheel 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 all dirt from these surfaces before remounting the
wheel. •
Notes on wheel change
Please read the information~ page 249, "New tires and replacing
tires and wheels", if you are going to use a spare tire which is
different from the tires on your vehicle.
After you change a tire:
• Check the tire pressure on the spare immediately after
mounting.
• Have the wheel bolt tightening torque checked with a torque
wrench as soon as possible by your authorized Audi dealer or a qualified service station .
• With steel and alloy wheel rims, the wheel bolts are correctly
tightened at a torque of 90 ft lb (120 Nml.
• If you notice while changing a tire that the wheel bolts are
corroded and difficult to turn, then they should be replaced before
you check the tightening torque.
• Replace the flat tire with a new one and have it installed on your
vehicle as soon as possible. Remount the wheel cover.
Until then, drive with extra care and at reduced speeds.
& WARNING
• If you are going to equip your vehicle with tires or rims which
differ from those which were factory installed, then be sure to read
the information
~ page 249, "New tires and replacing tires and
wheels".
• Always store the tools securely in luggage compartment.
Otherwise, in an accident or sudden maneuver they could fly
forward, causing injury to passengers in the vehicle.
Do-it-yourself service

__ _!:_A~l'.!:p~ h~ a~ b~e~ t~ic ~a..'.... l ~in~d~e ~x~ --------------------------------------------
Trip computer
Fuel consumption ................. 39
Mi leage .. ........ ........ .... ... 39
Trip odometer .. ...... .... ........ ... 14
What does it mean when dEF appears in the trip odometer display? ... ... .. 14
Trunk lid .... ........ ............. .. 55
Trunk escape handle ... .. .... .... 262
Turn signals ................. ....... 76
Warning/indicator lights ........... 19
u
Undercoating 207
Unfastening safety belts ...... ...... . 143
Unidirectional tires .................. 238
Uniform tire quality grading . ......... 253
Universal Radio- Frequency Remote Control (Homelink®) . . . . . . . . . . . . . . . . . . . 121
Un locking
Power locking switch . . . . . . . . . . . . . . 53
Rear lid/trunk lid ...... .... ...... .. 55
Remote control key ..... .. .... .... . 51
Using the key ... .. .... .... ...... .. 53
V
Vanity mirror ...... .. .... ........ .... 77
Vehic le electrical system .. ........ .... 19
Vehicle Identification Number (VIN) .... 288
Vehic le jack . . . . . . . . . . . . . . . . . . . . . . . . 269
Vehicle literature ............. ........ 5
Vehic le tool kit . . . . . . . . . . . . . . . . . . . . . 262 Vehicle-care products
...... ........ . 200 Power top cleaning ..... .. .... ... . 203
Venti lation ... ............ .... .... ... 98 with a power washer
....... .... ... 202
Waxing .......... .... .... ....... ... 203
w Wear indicator ..... ... ... .... ....... 248
Warning light
Tire pressure monitoring system 37
Warning lights ...................... 16 Weatherstrips
.... ....... .... .... ... 206
Weights ....... .. .... .... ...... .... 289
What happens if you wearyoursafety belt too loose? ..... .. .... .............. 142
Warning/Indicator light
Rear spoi ler ... ... .... ........ .... 18 What happens to unbelted occupants? .
139
What impairs driving safety? ... .... ... 129
Warning/indicator ligh1ts ... .. · · · · · · · · · 12 What should I do after changing a wheel? ..
Airbag system . . . . . . . . . . . . . . . . . . . . 19 245
Anti -lock brake system (ABS) · · · · · · · · 20 What shou ld I do after replacing whe els?
Brake system . . . . . . . . . . . . . . . . . . . . . 20 245
Cruise control . . . . . . . . . . . . . . . . . . . . 19
Electronic power control ........... 17
El ec tronic stabilization program (ESP) 18
Folding top ...... ... .. ... ... .. .... 18
Generator . . . . . . . . . . . . . . . . . . . . . . . . 19
High beam . . . . . . . . . . . . . . . . . . . . . . . 18
Malfunction Indicator Lamp (MIU .... 18
Parking brake . . . . . . . . . . . . . . . . . . . . . 20
Safety be lt . . . . . . . . . . . . . . . . . . . . . . . 19
Tire pressure monitoring system .... 17
Turn signals .. ....... ...... ....... 19
Warranty coverages .. ........ .... ... 293
Washer reservoir ..... .... ... ..... ... 236
Washing ........ ....... ...... .... .. 200
Automatic car wash ........... ... 201
by hand ......... ......... ... ... 201
Folding top cleaning ...... ... .. ... 203
General information ......... ..... 200 Wheel bolts
Torque ......................... 256
Wheels .............. ....... .... ... 238
Cast alloy .................... ... 207
Checking tire pressure ............ 244
Co ld tire inflation pressure ....... . 242
General notes .......... .......... 238
Glossary of tire and loading terminology .
239
New tires and whee ls .. ... .. ...... 249
Tires and vehicle load limits ... .... 246
Wheels/Tires Steel wheels ... .... .... ...... .... 206
When must the airbag system be inspected?
157
When should I adjust the tire pressures? 245
When should I check the tire pressures? 245