Wheel bolts
Wheel bolts must always be tightened to the
correct torque .
The design of wheel bolts is matched to the
factory installed r ims. If differen t rims are fit
ted, the correct wheel bolts with the right l ength and correctly shaped bolt heads must
be used. This ensures that wheels are fitted
securely and that the brake system functions
correctly .
In certain circumstances, you may not use
wheel bo lts from a different vehicle -eve n if it
i s the same model
¢ page 266.
_&. WARNING
Improperly tig htened or 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
whee l 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 wh ile 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 correct tighten ing
torque for the wheel bo lts 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 vehi
cl e 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.
Q;) Note
The spec ified torque fo r the wheel bo lts is
90 ft lbs. (120 Nm) with a tolerance of
± 7,4 ft lbs.(± 10 Nm). Torque wheel bo lts
Tire s an d wheel s 239
diagonally. After changing a wheel, the
torque m ust be checked as soon as possi
ble with a torque wrench -preferably by an
a uthori zed Audi dea ler or qualified work
shop.
Low aspect ratio tires
Your Aud i is factory -equ ipped w ith low aspect
ratio tires . These tires have been tho roughly
tested and been se lected specifically fo r your
model for their superb perfo rmance, road fee l
and hand ling under a var iety o f driving cond i
tions. Ask your authorized Audi dealer for
more details .
T he low aspect ratio of these t ires is ind icated
by a numeral of
55 or l ess in the tire's s ize
designation. The numera l rep resents the ra tio
of the tire's sidewa ll height in relation to its
tread width expressed in percentage . Conven
tiona l tires have a he ight/w idth ratio of 60 or
more.
T he performance of low-a spe ct- ra tio tire s is
p ar tic ul ar ly se nsi tiv e to i mprop er i nfl ation
pre ssure. It is the refo re important that low
a spect ratio t ires are inflated to the specified
pr ess ure and that th e inflation pr essur e is
r e gula rly ch ecked and maintain ed. Tir e pre s
s ure s should b e check ed at l east once a
m onth and alwa ys befo re a long trip
¢ page 228, Checking tire pressure.
What you c an do to avo id tire and rim
damage
Low aspect ratio tires can be damaged mo re
easily by impact w ith potholes, curbs, g ull ies
o r ridges on the road, pa rticularly if the tire is
u nderinflated.
In orde r to minimize the occurrence of impact
damage to the tires of your vehicle, we recom
mend that you observe the following p reca u
tions:
- Always ma inta in recommended inflation
pressu res. Check your tire pressure eve ry
2,000 miles (3,000 km) and add air if neces-
sary . .., •
•
24 0 T ire s and wheel s
- Drive carefu lly on roads with potholes, deep
gullies or ridges. The impact from driving
through or over such obstacles can damage
your tires. Impact with a curb may also
cause damage to your tires.
- After any impact, immediately inspect your tires or have them inspected by the neares t
authorized Aud i dealer. Replace a damaged
t ire as soon as possible .
- Inspect your t ires every 2 ,000 miles (3,000
km) for damage and wear . Damage is not al
ways easy to see . Damage can lead to loss of
air and underinflation, wh ich could eventu
ally cause t ire failu re. If you be lieve that a
t ire may have been damaged, replace the
t ire as soon as poss ible.
- T hese tires may wea r more quick ly than oth
ers.
- Please also remember that, whi le these t ires
deliver respons ive handling, they may ride
less comfortably and make mo re no ise than
othe r choices.
Reduced perf ormance in winter /cold
sea son condit ion s
All ti res are des igned for certa in pu rposes.
The low aspect ratio, u ltra high performance
tires originally installed on your vehicle are in
tended for max imum dry and wet road per
formance and handling . They are not suitable
for cold, snowy or icy weather condit ions. If
you dr ive under those circumstances, you
should equip your vehicle with all-season or
winter tires, which offer better traction under
those cond it ions . We suggest you use the rec
ommended snow or all-season tires specified
for your vehicle, or their equ ivalent .
Refe r to
<=> page 23 7 for more deta iled infor
ma tion regarding w inter tires.
Tire pressure
monitoring system
(l) General notes
App lies to vehicles: with tire pressure monitoring system
Each tire shou ld be checked monthly when
cold and inflated to the inflat ion p ressu re rec- ommended by the vehicle manufacturer on
the ve hicle p lacard or tire inflation press ure
label. (If yo ur vehicle has tires of a d ifferent
s iz e than the si ze indicated on the veh icle
placard or tire inflation pressure label, you
should determine the proper tire inflation pressure for those tires) .
As an added safety feature, your veh icle has
been equipped with a tire pressure monitoring
system (TPMS) that illum inates a low tire
pressure telltale when one or more of you r
tires is significantly under-inflated . Acco rding
ly, when the low tire pressure telltale illumi
nates, yo u shou ld stop and check you r tires as
soon as possib le, and inflate them to the
proper pressure . Driving on a signi ficantly un
der-inflated tire causes the tire to overheat
and can lead to tire fa ilure. Under-inflation al
so reduces fuel effic iency and tire tread life,
and may affect the vehicle's handling and
stopp ing ability.
P lease note that the TPMS is not a substitute
for proper tire ma intenance, and it is the driv
er's responsibility to maintain correct tire
pressure, even if under-inflation has not
r eached the level to tr igger illuminat ion of the
T PMS low tire pressu re tellta le.
Your vehicle has also been equipped with a
TPMS ma lfunction indicator to ind icate when
the system is not operating prope rly. The
T PMS ma lfunction ind icator is comb ined w ith
the low t ire pressure telltale . Whe n the sys
tem detects a malfunc tion , the telltale will
flash fo r approxima tely one min ute and then
remain continuously i lluminated. This se
quence wi ll continue upon subsequent vehicle
start-ups as long as the malfunct ion exists .
When the malfunction indicato r is illum inat
ed , the system may not be ab le to detect or
signal low tire pressure as intended . TPMS
malfunctions may occur for a var iety of rea
sons, including the installation of replace
ment or alternate tires or wheels on the vehi
cle that prevent the TPMS from functioning
properly . Always check the TPMS malfunction
te lltale after rep lacing one or more tires o r
whee ls on your vehicle to ens ure that the
replacement or alternate tires and wheels a l
l ow the TPMS to continue to function proper
l y.
Tire pressure indicator appears
Applies to vehicles: with tire pressure monitoring system
The tire pressure indicator in the instrument
cluster informs you if the tire pressure is too
low or if there is a system malfunction.
F ig. 190 Display: underinflatio n warn ing
Using the ABS sensors , the t ire pressure mon i
toring system compa res the t ire tread circum
fe rence and v ibration characteristics of the in
d iv idual tires. If the pressure decreases in one
or mo re tires, th is is indicated in the instru
ment cluster with a
ti] warn ing symbol and a
message ¢
fig. 190. The driver message in the
disp lay goes out after S seconds. The driver
message can be d isplayed again by pressing
the
! S ET ! button. If only one tire is affected,
the display will indicate its pos ition .
T he t ire pressure monitoring system must be
reset via radio or MMI* each t ime the pres
sures are adjusted (e.g . when sw itching be
tween partia l and full load pressure) or after
changing o r replacing a t ire on your vehicle
¢
page 242. The TPMS indicator only moni
tors the tire p ressure that you have prev iously
stored . Yo u ca n find the recommended tire
p ress ures for you r vehi cle on the labe l on dr iv
er's side B -pi llar ¢
page 226 .
T ire tread c ircumfe rence and vibration c harac
ter ist ics can ch ange and ca use a ti re pressure
warn ing if:
- the tire pressure in one o r more t ires is too
low,
Tire s an d wheel s 241
- the t ire has struc tural damage,
- t he t ire press ure w as c hanged, wheels ro ta t-
ed or rep laced but the TPMS was not reset
¢ page 242.
Warning symbols
ti] Loss of pressure in at least one tire¢& .
Check the t ire o r tires and rep lace or repa ir if
necessary. The
ti] indi ca to r li ght in the inst ru
ment cluster a lso illuminates
¢ page 13.
Check/cor rect the press ures of all fo ur tires
and reset TPMS via radio or MMI*.
11il~1 (T ir e Pressure Monitoring System) Tire
pre ssure: Sy stem m alfunction!.
IfllilB appears after switching the ignition
o n or while d rivi ng and the
ti] ind icator l ight
i n the instr ument cluster blinks for app roxi
mately one minute and then stays on, there is
a system malfunct ion .
Attempt to sto re the co rrect tire pressu re
¢
page 242. If the ind ic a tor lig ht does not
turn off or i f it turns on sho rtly the rea fter, im
med iate ly dr iv e your vehicle to an authorized
A udi dealer or authorized repair faci lity to
have the malfunct ion corrected.
A WARNING
- If the tire pressure ind icator appears in
the instrument cluster display, one or more of your t ires is sign ificant ly unde r
inflated . Reduce you r speed immediately
a nd avoid any hard steer ing or b rak ing
maneuvers. Stop as soon as possib le and
check the tires and their pressu res . In
f late the tire pressure to the prope r pres
sure as indicated o n the vehicle's tire
pressure labe l
¢page 226. D riving on a
sign ificantly under-inflated tire causes
the t ire to overheat and can lead to tire
fa ilure. Under-inflation also is likely to
impair the vehicle's ha ndling and stop
ping ab ility .
- The drive r is responsib le for maintaini ng
the co rrect tire pressures . You must
check the tire pressures regu larly. .,..
•
•
280 Index
Unlocking/ locking
atth elockcylinder ..... ... .. .. .... .. 36
by remote contro l . . . . . . . . . . . . . . . . . . 34
with the central locking switch .. ...... 35
with the convenience key ... .. .. .... .. 35
Upper cabin heating . . . . . . . . . . . . . . . . . . 72
Use of jumper cables ........ ... .. ... 256
V
Valet parking ........... ...... ... .. .. 40
Vanity mirrors ................ ..... .. 57
Vehicle-care products ..... .. .. .. .. .. . 189
Vehicle elec trical system . . . . . . . . . . . . . . 17
Vehicle Identification Number (VIN) ... . 261
Vehicle jack .. .......... ...... ... .. . 248
Vehicle key .. ................ ..... .. 32
Vehicle literature . . . . . . . . . . . . . . . . . . . . . 5
Vehicle tool kit . . . . . . . . . . . . . . . . . . . . . 243
Ventilation . ................. ..... .. 69
w
Warn ing/ indicator lights . . . . . . . . . . 10, 13
Airbag system ............ ... .... .. 20
Anti-lock braking system (ABS) . . . . . . . . 19
Brake system ................ .... .. 15
E lectromechanica l parking brake .. .... 16
Electronic power control . . . . . . . . . . . . . 20
Electronic Stabili zation Control (ESC) ... 19
Generator . . . . . . . . . . . . . . . . . . . . . . . . . 17
Malfunction Indicator Lamp (MIL) . . . . . 20
Safety belt . . . . . . . . . . . . . . . . . . . . . . . . 17
Safety systems . . . . . . . . . . . . . . . . . . . . . 20
Turn signa ls ............. .. .. .... .. 22
Warranty coverages ......... ... .. .. . 264
Washer reservoir ................... 221
Washing .. ............... .. .. .... . 189
Automatic car wash ..... .. .. .. .. .. . 190
by hand .. ... ............ .. .. .. .. . 190
General information ....... ... .... . 189
Matte finish paint ............ .... . 192
Power top cleaning ....... .. .. .... . 192
with a power washer ...... .. .. .. .. . 191
Waxing . .. .. .. . .......... .. .. .. .. . 193
Wear indicator ................ .. .. . 232
Weights ..... ................ ..... . 261 What happens if you wear your safety belt
too
loose? . ..... .. .. .............. . 134
What happens to unbelted occupants? .. 130
What impairs driving safety? ...... .... 119
What should I do after changing a
whee l? ............................ 229
What should I do after replacing wheels? 229
Wheel bolts Torque .... .... .. ............. .... 239
Wheels ... ..... .. .. .............. . 222
Cast alloy ..... .. ............. .... 195
Checking tire pressure .............. 228
Cold tire inflation pressure ...... .. .. 226
General notes .. ... .............. .. 222
Glossary of tire and loading terminolo-
gy . .. ... ... .. .. .. _ .... ...... .. .. 223
New tires and wheels ............... 233
T ires and veh icle load limits ..... .... 230
When must a safety belt be replaced? .. 132
When must the airbag system be inspect- ed? ......... ... .. .. ............... 148
When should I adjust the tire pressures? 229
When should I check the tire pressures? . 229
Where can I find the tire pressures for my car? .............................. 228
Why safety belts? . . . . . . . . . . . . . . 129, 130
Wind deflector .. .. ............. .... . 46
Cleaning .. .. .. .. ............. .. .. 193
Windows Cleaning . ..... .. .. .............. . 195
defrosting ..... .. .. .............. .. 71
Windsh ield
Cleaning .. .. .. .. .. ... ........ .... . 57
defrosting ..... .. .. .............. .. 71
Windsh ield washer fluid
Low leve l .. ... ... .. .............. .. 21
Windshield washer system ....... .. .. . 57
Windsh ie ld wipers
Folding up ...... ................ .. 58
Indicator light ... ................ .. 21
Replac ing windsh ield wiper blades . ... . 58
Switching on/off . ............. .... . 57
Washer reservoir 221
Winter operation
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Coolant system . ................. . 214
Defrosting windows .............. .. . 71