wheel bolt torque AUDI S6 2015 Owners Manual

26 6 T ire s and whee ls
Wheel bolts
Wheel bolts must always be tightened to the
correct torque .
The design of wheel bolts is matched to the
factory installed rims. 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 fitted
secure ly and that the brake system functions
correctly .
In ce rtain circumstances, you may not use
wheel bolts from a different vehicle -even if it
is the same mode l
~page 294.
_& WARNING
Improperly tig htened o r maintained whee l
bolts can become loose ca using loss of
contro l, a co llision and serious persona l in­
jury.
- Always keep the wheel bolts and the
threads in the wheel hubs clean so the
wheel bolts can turn easily and be prop­
erly t ightened.
- Never grease or oil the wheel bo lts and
the threads in the wheel hubs. They can
become loose while driving if greased or
oiled, even if tightened to the specif ied
torque.
- Only use wheel bolts that belong to the
rim being installed.
- Never use different wheels bolts on your
vehicle.
-Always maintain the correct tighten ing
torque for the wheel bolts to reduce the
risk of a wheel loss. If the tightening tor­
que of the wheel bolts is too low, they
can loosen and come out when the veh i­
cle is moving. If the tightening torque is
too high, the whee l bolts and threads
can be damaged and the wheel can be­
come loose.
@ Note
The spec ified torq ue fo r the wheel bo lts is
90 ft lb (120 Nm) w ith a toleran ce of± 7,4
ft lb(± 10 Nm). Torque wheel bo lts diago- nally
. After changing a whee l, the torque
must be checked as soon as possible with a
torque wrench -preferably by an author­
i zed Audi dealer or qualified workshop.
Low aspect ratio tires
Your Audi is factory-equ ipped w ith low aspect
r atio tires . These tires have been tho roughly
tested and been se lected specifically for your
model for their superb perfo rmance, road fee l
and hand ling under a variety of d riving cond i­
tions . As k your au thor ized A udi dealer for
more de tails .
T he low aspect ratio of these t ires is ind icated
by a numera l of
55 or less in the tire's s ize
designation. The nume ra l represen ts the ra tio
of the tire's sidewall height in relation to its
tread width expressed in percentage . Conven­
tiona l tires have a he ight/width ratio of 60 or
more.
The performance of low- aspect-r atio tires is
p ar ticu la rly s ens iti ve to improper infl ation
p re ss ure. I t is th erefore im portant th at low
as pect ratio tires are inflated to the specified
pressure and that the inflation pressu re is
r e gularl y che cked and mainta ined. Tir e pre s­
su res should be ch ecked at least onc e a
month and alwa ys bef ore a long trip
~ page 249, Checking tire pressure.
What you can do to a void tire and rim
damage
Low aspect ratio tires can be damaged more
easily by impact w it h potholes, curbs, gull ies
o r r idges on the road, pa rticularly if the tire is
u nderinfla ted .
In order to minimize the occurrence of impact
damage to the tires of you r vehicle, we recom­
mend that you observe the follow ing p recau ­
tions:
- Always ma inta in recommended inflation
pressures. Check your tire pressure eve ry
2,000 miles (3,000 km) and add air if neces­
sary .
- Dr ive carefully on roads with potholes, deep
gullies o r ridges. The impact from dr iv ing ..,.

M N
0 <.J 'SI: ,...., \!) ..,.,
,...., ..,., ,....,
A WARNING 1=
You or your passengers could be injured
while changing a wheel if you do not fol­
low these safety precautions:
- If you have a flat tire, move a safe dis­
tance off the road. Turn off the engine,
turn the emergency flashers on and use
other warning devices to alert other mo­
torists.
- Make sure that passengers wait in a safe
place away from the vehicle and well
away from the road and traffic.
- To help prevent the vehicle from moving
suddenly and possibly slipping off the
jack, always fully set the parking brake
and block the wheel diagonally opposite
the wheel being changed. When one
front wheel is lifted off the ground, plac­
ing the Automatic Transmission in P
(Park) will
not prevent the vehicle from
moving.
- Before you change a wheel, be sure the
ground is level and firm. If necessary,
use a sturdy board under the jack.
- Always store the vehicle tool kit, the jack
and the replaced tire in the luggage com­
partment
¢ page 132.
{!) Tips
Before changing the wheel, you must acti­
vate the jacking mode, so that the auto­ matic controls for the Adaptive Air Sus­
pension* do not make it more difficult to
lift the vehicle with the jack¢
page 2 75.
Changing a wheel
When you change a wheel, follow the se ­
quence described below step-by-step and in
exactly that order .
1. Activate the vehicle jack mode*
c::;. page 275.
-
2. Remove the decorative wheel cover* . For
more details see also
¢page 274, Deco­
rative wheel covers
or ¢ page 2 7 4,
Wheels with wheel bolt caps.
3. Loosen the wheel bolts¢ page 274.
What do I do now? 273
4.
5.
6.
7.
8.
9.
Locate the proper mounting point for the
jack and align the jack below that point
¢page 275.
Raise the car with the jack ¢page 275.
Remove the wheel with the flat tire and
then install
the spare <=> page 2 76.
Tighten all wheel bolts lightly.
Lower the vehicle with the jack .
Use the wheel bolt wrench and
firmly
tighten all wheel bolts¢ page 274 .
10. Replace the decorative wheel cover*.
11. Deactivate the vehicle jack mode* in the
MMI:
ICARI function button > (Car)* sys­
tems
control button > Servicing & checks
> Air susp.: jack mode > Off .
The vehicle jack mode* switches off automati­
cally at speeds above 6 mph (10 km/h).
A WARNING
Always read and follow all WARNINGS and information<=>
A in Raising the vehicle on
page 275
and <=> page 277.
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 132.
.,. Check the tire pressure on the spare wheel
immediately after mounting it.
.,. As soon as possible, have the
tightening
torques
on all wheel bolts checked with a
torque wrench. The correct tightening tor­
que is
90 ft lb (120 Nm) .
.,. Have the flat tire
replaced as soon as possi­
ble.
(D Tips
- If you notice that the wheel bolts are
corroded and difficult to turn while
changing a tire, they should be replaced
before you check the tightening torque.
- Drive at reduced speed until you have the
tightening torques checked.
ll>
•
•

M N
0 <.J 'SI: ,...., \!) ..,.,
,...., ..,., ,....,
Putting on the spare wheel
"'Lift the spare wheel and ca refully slide it
over the alignment pin to guide it in place
¢ (D .
"' Use the hexagonal socket in the screwdriver
handle to screw in and tighten all wheel
bolts
slightly.
"' Remove the alignment pin and insert and
t ighten the remaining wheel bolt s lightly
like the rest .
"'T urn the jack handle counte r-clockw ise to
lower the vehicle unt il the jac k is f ully re­
l eased .
"' Use the whee l bolt wrench to tighten a ll
whee l bolts firmly
¢ page 274. Tighten
them
crosswis e, from one bolt to the (ap­
proximate ly) opposite one, to keep the
wheel cen tered.
When removing or install ing the wheel,
the rim could hit the brake rotor and dam­
age the rotor. Work carefully and have a
second person help you .
{D) Tips
Never use the hexagonal socket in the han­
dle of the screwdriver to loosen or t ighten
the wheel bolts .
- Pull the reversib le blade from the screw­
driver before you use the hexagonal
socket in the handle to turn the whee l
bo lts.
- When mounting tires with
un id ire ctional
tread design
make s ure the tread pat­
tern is poi nted the right way
¢ page 277.
- The wheel bolts should be clean and easy
to tu rn . Check for d irt and corrosion on
the mat ing su rfaces of both the whee l
and the h ub. Remove a ll dir t from these
su rfaces before remo unting the wheel.
What do I do now? 277
Tires with unidirectional tread design
Tires with unidirectional tread design must be
mounted with their tread pattern pointed in the right direction .
Usi ng a spa re ti re with a tre ad patte rn
intended for use in a specific direction
When using a spare t ire with a tread patter n
intended for use in a spec ific d irection, please
note the following :
- The d irect ion of rotation is marked by an ar­
row on t he side of the ti re .
- If the spare tire has to be installed in the in­
correct direct ion, use the spare tire only
temporarily s ince the t ire will not be able to
achieve its optimum performance cha racte r­
istics w it h regard to aquap la ni ng, no ise and
wear .
- We recommend that you pay part icu lar at­
ten tion to th is fact during we t wea ther and
t ha t you adjust your speed to match road
conditions .
- Replace the fl at t ire wi th a new one and
have i t installed on your vehicle as soon as
possible to restore the hand ling advantages
of a un idirectional tire .
Notes on wheel changing
Please read the information¢ page 257, New
tires and replacing tires and wheels
if you a re
go ing to use a spare tire wh ich is different
from the tires on you r vehicle .
After you change a tire:
- Check the tire pre ssure on the spare imme­
diately after installation.
- Have the wheel bolt tightening torqu e
checked with a torque wrench as soon a s
possible by your authorized Audi dealer or
a qualified service station.
- With steel and alloy wheel rims , the wheel
bolts are cor re ctly tightened at a torque of
90 ft lb (120 Nm ).
- If you notice that the wheel bolts are cor­
roded and diff icult to turn while changing
a tire , they should be replaced before you
check the t ightening torque. .,,.
•
•

308 Index
u
ULSD No. 2 (Diese l fuel) ......... .... . 215
Unfasten ing safety belts .... .. .. .. .. . 141
Unid irectiona l tires ......... .. .. .. .. . 238
Uniform tire quality grading . .. .. .... . 263
Unlock ing
Power locking sw itch ....... ... .. .. ..
36
Remote control . . . . . . . . . . . . . . . . . . . . 34
Using the key .. .......... .. .. .... .. 36
V
Valet park ing . ................ ... .. .. 40
Vanity mirrors ................ ..... .. 47
Vehicle
care/cleaning . ........... .. .. .... .
209
Vehicle control modules ......... .. .. . 192
Vehicle e lectrical system . . . . . . . . . . . . . . 17
Vehicle identification labe l ... .. .. .. .. . 289
Vehicle Identification Number (VIN) ... . 289
Vehicle jack . . . . . . . . . . . . . . . . . . . 271, 275
Vehicle literature . . . . . . . . . . . . . . . . . . . . . S
Vehicle shutt-down ........... .. .... . 202
Vehicle transport .......... .. .. .. .. .
287
Ventilation .. ... .... ...... .. .. .. .. .. 67
Viny l
C leaning ... ................ ..... .
212
w
Warning/indicator lights .......... .. .. 12
Airbag system ............ ... .... .. 19
Anti-lock braking system (ABS) . . . . . . . . 19
Brake system .............. .. .... .. 15
Cruise control . . . . . . . . . . . . . . . . . . . . . . 23
Electromechanical parking brake .. .. .. 16
Electronic power control . . . . . . . . . . . . . 20
Electronic Stabilization Control (ESC) .. . 19
Generator . . . . . . . . . . . . . . . . . . . . . . . . . 1 7
Glow plug system ........ .. .. .... .. 21
Instrument cluster . . . . . . . . . . . . . . . . . . 11
Malfunction Indicator Lamp (MIL) . . . . . 21
Safety belt . . . . . . . . . . . . . . . . . . . . . . . . 17
Turn signals ............. .. .. .. .. .. 23
Warn ing/Ind icator lights
A irbag system . . . . . . . . . . . . . . .
157, 158
PASSENGER AIR BAG OFF ... ... .. .. . 158
Warranty coverages ............. .... 292
Washer reservoir .. ................ . 235
Wear indicator .. .. ... .......... .. .. 255
Weights .... .... .. ............. .... 289
What happens if you wear your safety belt
too loose? ...... .. .. ... ....... .... .
140
What happens to unbe lted occupants? . . 137
What impai rs driving safety? ...... .. .. 127
What should I do after changing a
wheel? ...... ... .. .. ... ....... .... .
251
What should I do after replacing whee ls? 251
Wheel bolts
Torque .. .. .. .. .. .. ........... .. ..
266
Wheels ....... ... .. .............. . 237
Checking tire pressure .......... .. .. 249
Cleaning ...... .. .. ........ ...... . 210
Cold tire inflation pressure ........ .. 244
General notes .. .. ... .......... .. .. 237
G lossary of tire and loading terminolo-
gy ....... .... .. ................ .
239
New tires and whee ls .............. . 257
Tires and vehicle load limits ..... .... 252
When must a safety be lt be replaced? .. 139
When must the airbag system be inspect-
ed? ......... ... .. .. ... ....... .... .
157
When should I adjust the tire pressures? 251
When should I chec k the tire pressures? . 251
Where are lower anchorages located? ... 186
Where can I find the tire pressures for my
car? ....... .... .. ................ .
249
Why safety belts? . . . . . . . . . . . . . . 136, 137
Windows
Cleaning/removing ice .... ...... .. ..
211
defrosting (automatic climate control) . 71
defrosting (climate control) . . . . . . . . . . 69
Windshie ld
Cleaning .. .... .. ............. .....
48
defrosting (automatic climate control) . 71
defrosting (climate control) . . . . . . . . . . 69
Windshie ld washer system .......... .. 48
Washer fluid level ............. .... . 22
Washer reservoir . ............. .... 235
Windsh ie ld wipers
Cleaning . ..... .. .. .............. ..
49
Folding up .... .. ............. ..... 49
Indicator light . .. ............. .. .. . 22