2014 AUDI S8 wheel torque

chains because the vehicle will be ex­
tremely low. If you do drive with snow
chains on while the vehicle is at this lev­
el, the snow chains might severe ly dam­
age the wheelhouse and other parts of
the veh icle .
@ Tips
Where snow cha ins are mandatory oncer­
tain roads, this normally also applies to
veh icles with All Wheel Drive.
Wheel bolts
Wheel bolts mu st always be tigh tened to the
correc t torque .
The design of whee l bolts is matched to the
factory in sta lled r ims. If different rims are fit ­
ted, the correct wheel bolts with the right
length and correctly shaped bolt heads must
be used . This ensures that wheels are f itted
secure ly and that the brake system f unctions
correctly .
In certain circumstances, you may not use
wheel bolts from a d iffe rent vehicle -even if it
i s the same mode l
¢page 294.
A WARNING
Imprope rly tig hte ned or maintained whee l
bolts can be come loose causin g loss of
contro l, a co llision and serious persona l in­
jury .
- Alw ays keep the w heel bolts and the
th reads in the wheel hubs clea n so the
wheel bolts can turn easily and be prop­
er ly tightened .
- Never grease or oil the wheel bo lts and
the threads in the w heel h ubs. They can
become loose while driving if greased or
o iled, even if tightened to the specif ied
torque.
- Only use wheel bolts that belong to the rim being installed.
- Never use different whee ls bolts on your
vehicle .
- Always maintain the co rrect tightening
torq ue for the wheel bo lts to reduce the
Tire s an d wheel s 265
risk of a wheel loss. If the tighte ning tor­
que of t he wheel bolts is too low, they
can loosen and come out when the vehi­
cle is mov ing . If the tighte ning torque is
too h igh, the wheel bol ts and threads
can be damaged and the whee l can be­
come loose.
(I) Note
The specified torque for the whee l bolts is
90 ft lb ( 120 Nm) with a tole ranc e of± 7,4
ft lb(± 10 Nm). Torq ue whee l bolts diago­
nally. Afte r cha nging a whee l, the torq ue
must be checked as soon as possible wi th a
torque w rench -prefe rably by an au thor­
i z ed Audi dealer or qualif ied workshop .
Low aspect ratio tires
Your Audi is facto ry-eq uipped with low aspect
ratio tires. These tires have been thoro ughly
tested and been se lected specifically for your
model for their superb performance , road fee l
and handling under a variety of driving cond i­
tions . Ask your authorized Audi dealer for
more details.
The low aspect ratio of these t ires is ind icated
by a numeral of
55 or less in the tire's size
designation . The numera l rep resents the ratio
of the t ire's sidewall height in relation to its
t read width ex pressed in perce ntage. Conven ­
tion al tires have a he igh t/w idth ratio of 60 or
more.
The performance of low-aspe ct-ratio tire s is
particularly sensitiv e to improper infla tion
pres sure. It is therefore important that l ow
a spect ratio tires are inflated to the specified
pre ssure and that the inflation pressure is
regularly checked and maintained. Tire pres·
sures should be checked at least once a
month and always before a long trip
¢ page 254 , Checking tire pressure .
What you can do to avoid tire and rim
damage
Low aspect ratio tires can be damaged more
easily by impact w it h potholes , curbs, gul lies ..,.
•
•

-Always store the vehicle tool ki t, the jack
and t he replaced t ire in the luggage com­
partment ¢
page 141 .
@ Tips
Before chang ing the wheel, you must acti­
vate the jacking mode, so that the auto­
mat ic controls for the Adaptive Air Sus­
pens ion do not make it more difficu lt to
lift the vehicle with the jack¢
page 2 75.
Changing a wheel
When you change a wheel, follow these­
quence described below step-by-step and in
exactly that order .
1. Activate the vehicle jack mode
c:;.page275.
2. Remove the decorative whe el co ver* . For
mo re deta ils see also
c:;, page 2 73, Deco­
rative wheel covers
or c:;, page 2 7 4,
Wheels with wheel bolt caps.
3 . Loosen the wheel bo lts c:;, page 2 7 4.
4. Locate the proper mo unt ing po int for the
jack and align the jack below that point
c:;, page 2 75.
5 . Rai se the car w ith the jack c:;, page 275.
6. Remove the wheel with the flat tire and
then install
the spare c:;, page 2 76 .
7. Tighten all wheel bo lts light ly .
8 .
Lower the ve hicle w it h the jack.
9 . Use t he wheel bolt wre nch and
firmly
tighte n all whee l bolts c:;. page 274.
10. Rep lace the de corative wheel cover* .
11. D eactivate the vehicle jack mode in t he
MMI:
! CARI fu nction button > Car system s
control button > Servicing & che cks > Air
susp.: jack mode > Off .
The vehicle jack mode sw itches off automati ­
cally at speeds above 10 km/h.
A WARNING
Always read and follow all WARNINGS and
information
c:;, .&. in Raising the vehicle on
page 275
and c:;, page 277.
What do I d o now ? 273
After changing a wheel
A wheel change is not complete without the
doing the following.
.,. Always store the vehicle tool kit, the jack*
and the replaced tire in the luggage com­
partment
c:;, page 141 .
.,. Check the tire pressure on the spare whee l
immed iate ly afte r mounting i t.
.,. As soon as poss ib le, have the
tight ening
torque s
on all wheel bolts checked w ith a
torque wrenc h. The co rrec t tighten ing tor­
que is 90 ft lb (120 Nm).
.,. Have the flat tire
replaced as soon as possi­
ble .
@ Tips
-If you notice that the wheel bo lts a re
corroded and difficult to turn while
chang ing a tire, they should be replaced
before you c heck the tightening torque.
- Drive at reduced speed until you have the tightening torques checked .
- After changing a whee l, the ti re press ure
in all four tires must be checked/correct­
ed and the tire press ure monitoring ind i­
cator must be sto red in the M MI
c:;. page268 .
Decorative wheel covers
Applies to veh icles: w ith decorative w hee l cove rs
The decorative wheel covers mus t be removed
first to access the wheel bolts.
Fi g. 22 1 Chang ing a whee l: Re moving th e w hee l cover
Removing
.,. Insert the hook (provided with the vehicle
t oo l kit) in the ho le in the whee l hub cover .
i,,.

and the hub. R emove a ll dirt from these
su rfaces before remo unt ing the wheel.
Tires with unidirectional tread design
Tires with unidirectional tread de sign must be
mounted with their tread pattern pointed in
the right direction.
Using a spare tire with a tread pattern
intended for use in a specific direction
When using a spa re tire w ith a tread patte rn
intended for use in a specific direction, please
note t he following:
- T he direction o f rotation is marked by an a r­
r ow on the side of the tire.
- If the sp are tire has to be install ed in the in­
correct di rection, use the spare tire only
temporar ily since the t ire wi ll not be a ble to
ac hieve its optimum performance character­
ist ics with regard to aquaplaning, noise and
wear.
- We recommend that you pay particular at­
tent ion to this fact during wet weat her and
t h at you adjust your speed to matc h road
condit ions .
- Replace the flat tire w ith a new one and
have it installed on your ve hicle as soon as
poss ib le to restore the hand ling advantages
of a uni direct io na l ti re.
Notes on wheel changing
Please read the information ¢ page 259, New
t ires and repl acing tires and wheels
if you are
goi ng to use a s pare t ire which is differen t
from the tires on your ve hicle.
Afte r you change a tire:
- Check the tire pressure on the spare imme­
diately after installation .
- Have the wheel bolt tightening torque
checked with a torque wrench as soon as
possible by your authorized Audi dealer or
a qualified s ervice station .
- With steel and alloy wheel rims, the wheel
bolts are correctly tightened at a torque of
90 ft lb (120 Nm). What do I do now? 277
- If you notice that the wheel bolts are cor­
roded and difficult to turn while changing
a tire , they should be replaced before you
check the t ightening torque.
- Replace the flat ti re 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 re­
duced speeds.
A WARNING
- I f you are g oing to eq uip your vehicle
wit h tires o r rims which differ from those
which were factory installed, then be sure to read the information ¢
pag e 259,
N ew tires and replacing tir es and
w heels.
- Always ma ke sure t he damag ed wheel o r
even a fla t tire an d the jack a nd tool ki t
a re prope rly se cu red in t he luggage co m­
p art me nt and a re not loose in the p as­
senger compartment .
- I n an a ccide nt or sudde n maneuver they
could fly forward, injuring anyone in the
veh icle.
- Always s tore da mage d wheel, j ack and
t oo ls se curely in the lugg age comp art­
men t. Othe rwise, in an accident o r su d ­
den maneuver they co uld f ly forwa rd,
causing inju ry to passengers in the veh i­
cle. •
•

308 Index
Trailer towing
212
Operating instructions .............. 212
Park ing system ............ ... .... . 132
Technical requirements .... .. .. 212,213
Trailer towing tips .......... .. .... . 214
Train (transporting your vehicle) .... .. . 287
Transm ission . .............. ... .. ... 116
Transmission malfunction (indicator light) . .. .. .. ............. .. .. .. ... 120
Transport Canada .............. .... . 143
Transporting your vehicle .... .. .. .. .. . 287
Tread Wear Indicator (TWI) ... ... .. .. . 258
Trip odometer ............. .. .. .... .. 27
What does it mean when DEF appears in
the trip odometer d isplay? ......... .. 27
Trunk
refer to Luggage compartment lid . .. . . 37
Trunk escape handle ........ .. .. .... . 269
Turn signa ls . ................. ..... .. 48
Warning/indicator lights ........... . . 23
u
Unfasten ing safety belts 150
Unidirectional tires ............. .. .. . 248
Uniform tire quality grading ....... .. . 262
Unlock ing
L uggage compartment lid .. .. .. .. .. . . 37
Power locking switch ...... .. .. .... .. 36
Remote control .................... 35
Using the key ...................... 36
V
Valet parking ................. ..... .. 42
Vanity mirrors . . . . . . . . . . . . . . . . . . . 51, 52
Vehicle care/cleaning .............. .. .... . 216
Vehicle e lectrical system ...... .. .... .. 16
Vehicle identification label . ........ .. . 289
Vehicle Identification Number (VIN) ... . 289
Vehicle jack . . . . . . . . . . . . . . . . . . . 270, 275
Vehicle literature . . . . . . . . . . . . . . . . . . . . . 5
Vehicle shutt-down .......... ... .... . 209
Vehicle transport . .......... ... .. .. . 287
Venti lation ............... .. .. .... .. 79 Vinyl
Cleaning . ..... .. ................ . 219
w
Warning/indicator lights ............. . 11
Airbag system ... ............. ..... 18
Anti- lock braking system (ABS) ........ 19
Brake system . . . . . . . . . . . . . . . . . . . . . . 14
Electromechanical parking brake . .... . 15
Electronic power control . . . . . . . . . . . . . 20
Electronic Stabilization Control ( E5C) .. . 18
Generator ... .. .. ....... ...... .. .. . 16
Glow p lug system . . . . . . . . . . . . . . . . . . 20
Instrument cluster ............. .. .. . 10
Malfunction Ind icator Lamp (MIL) .. .. . 20
Safety be lt . ... .. ................ .. 16
T urn signals ..... ............. ..... 23
Warning/Indicator lights
Airbag system ... ............. .... 164
Dynamic steering . ............. .. .. . 22
PASSENGER AIR BAG OFF ........ ... 164
Warranty coverages .............. ... 292
Washer reservoir .. ................ . 247
Wear indicator .. .. ............. .... 258
Weights .. .. .. ... ... ... ..... ... .. .. 289
What happens if you wear your safety belt
too loose? .. .... .. ................ . 149
What happens to unbelted occupants? .. 146
What impairs driving safety? .... .. .. .. 136
What shou ld I do after changing a
whee l? ......... .. ................ . 255
What should I do after replac ing wheels? 255
Wheel bolts Torque .... .... ................... 265
Wheels ... ..... .. ................ . 248
Checking tire pressure .............. 254
Cleaning .. .... .. ............. .... 217
Cold tire inflation pressure ...... .. .. 252
General notes .. .. ............. .... 248
Glossary of tire and loading terminolo -
gy ........ ... .. .. ... ....... ... .. 249
New tires and whee ls ... ... ..... .. .. 259
T ires and veh icle load limits ..... .. .. 256
When must a safety belt be replaced? .. 148
When must the airbag system be inspect -
ed? ......... ... .. .. ............... 164