M N
0:: <.J 'SI: ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
are used , they must be in
stalled on all four wheels. Mixing tire types is not per
mitted.
(D Note
-For technical reasons, it is not generally possible to
use the wheel rims from
other vehicles. This can hold
true for wheels of the same
vehicle type.
- If a replacement tire is dif
ferent from the tires that
you have mounted on your
vehicle (for example winter
tires or wide profile tires),
then use the replacement
tire for a short period of
time only and drive with ex
tra care. Replace the flat
tire with the tire matching
the others on your vehicle
as soon as possible.
- Never drive without the
valve stem cap. The valves
could get damaged .
@) For the sake of the environment
Dispose of old tires in accord
ance with the local require ments.
Tires and wheels 251
Uniform tire quality grading
- Tread wea r
- Traction AA A B C
- Temperature AB C
Quality g rades ca n be foun d where applicab le
on the t ire s ide wall between t read sho ulder
and maximum section width
c> page 245,
fig. 199 .
For example : Tread wear 200, Traction AA,
Temperat ure A.
All passenge r ca r tir es must con form to Feder
a l Safety Requ irements in add ition to these
grades.
Tread wear
T he tread we ar g rade is a c omp arati ve r ati ng
based on the wea r rat e of the tire when tes te d
u nder con tro lled conditions o n a specifie d
government test course .
F o r ex ample, a tire gr aded 1S 0 wo uld wear
one a nd one h alf ( 11 /2 ) times as well on the
governmen t course as a ti re g raded 100 .
T he re la tive perfo rman ce of tires depe nds
up on the actu al c ondition s of the ir u se, how
ever, and m ay dep art s ignificantly from t he
no rm due to va ria tions i n driving ha bits, se rv
ice p ractices and differences in road c haracter
istics and cl imate.
Traction
T he trac tio n gr ad es, from hig hest to lowes t,
a re AA, A, Ban d
C. Those g rades represe nt the
ti re 's ability to stop on wet pavement as
measured u nder cont rolled conditions on
specified government test surfaces of aspha lt
and concrete. A t ire mar ked C may have poor
traction performance
c> ,&. .
Temperature
The temperature gr ades are A (the highest),
B, and C, represent in g the tire's resistance to
the generation of heat and its ab ility to d issi
pate heat when tested un der controlled condi
tions on a specif ied indoo r labo rato ry test
whee l.
•
•
254 Tire s and wheel s
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 r ight
length and correctly shaped bolt heads must
be used. This ensures that wheels are fitted
secure ly and that the brake system funct ions
correctly .
In ce rtain circumstances, you may not use
wheel bolts from a different vehicle -even if it
i s the same mode l
~page 284.
_& 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 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 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 torque fo r the wheel bo lts is
90 ft lb (120 Nm) w ith a tolerance 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
ratio tires . These tires have been thoroughly
tested and been selected specifically fo r 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 details .
T he low aspect ratio of these tires is ind icated
by a numera l of
55 or less in the tire's s ize
designation. The numera l represen ts the ratio
of the tire's sidewall height in relation to its
tread width expressed in percentage . Conven
tiona l tires have a height/width ratio of 60 or
more.
The perf orm ance of low- aspect-r atio tire s is
p ar ticu larly s ensitive to improper infl ati on
press ure . It is t here fore im portant that low
as pect rat io tires are infl ated to the spe cified
pre ssure and that the infl ation pressu re is
r e gularl y che ck e d and mainta in ed. Tire pre s
su res should b e check ed at least onc e a
month and alwa ys bef ore a long trip
~page 237, 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 ..,.
268 What do I do now?
Tires with unidirectional tread design
Tires with unidirectional tread design must be
mounted with their tread pattern pointed in the right direction .
Using a replacement tire with a tread
pattern intended for use in a specific
direction
When using a re p la cemen t tir e wi th a tread
pattern inte nded for use in a speci fic dire c
tion, please note the fo llow ing :
- T he direction of rotation is marked by a n ar
row on the side o f the tire .
-If the r eplacement tire has to b e insta lled in
t h e inc orre ct direction, use the rep la ce m ent
tir e on ly tempor arily s ince the t ire will not
be able to a chieve its op timum perfo rm ance
characteris tics with regard to aqua planing,
noise and wear .
- W e recommend that you pay particular a t
tent io n to this fact du ring wet weat her and
t h at you adjust your spee d to matc h roa d
condit ions .
- Repl ace the flat tire w ith a new one and
have it installed on your veh icle as soon as
poss ible to resto re the handling advantages
of a unid irect iona l tire .
Notes on wheel changing
Please read the information 9 pag e 245, New
tires and replacing tires and wheels
i f you are
go ing to use a rep lacemen t tire w hich is dif
feren t fro m th e tires on you r veh icle.
After you cha nge a t ire :
-Check the t ire pressure on the replacement
tire immediately 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 service station .
- With steel and alloy wheel rims , the wheel
bolts are correctly tightened at a torque of
90 ft lb (120 Nm) .
- 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 tightening torque.
- Replace the flat tire with a new one and
have it installed on your vehicle as soon a s
possible. Remount the wheel cover.
Until then , drive with extra care and at re
duced speeds.
A WARNING
- If yo u are going to e quip your ve hicl e
wit h tires or rims which differ from those
which were factory installed, then be sure to read the information
9 page 245,
New tires and replacing tires and
wheels .
-Always make sure the damaged wheel o r
even a flat tire a nd the jack a nd tool kit
ar e prope rly secu red in the luggage com
pa rtment an d are no t loose in the pas
s e nge r compa rtm en t.
- In an accid ent or sudde n man euver they
co uld f ly forw ard, inju ring anyo ne in the
ve hicl e.
- Always s to re damaged wh eel, jack a nd
t oo ls se curely in the luggage co mpa rt
men t. Ot he rwi se, in an a ccident or sud
d en maneuve r they co uld f ly forw ard,
causing inj ury to p assen gers in the ve hi
cle.
(D Note
Do not use comm erc ia lly availabl e tire
se alant s. Oth erwise, the e lec trical co mpo
nen ts of the tire press ure moni to ring sys
tem will no longer work p rope rly a nd t he
senso r fo r the tire pressure mon itor ing
system w ill have to be rep lace d by quali
fied workshop.
29 4 Index
Rear light
Defective . . . . . . . . . . . . . . . . . . . . . . . . . 21
Rear she lf . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Rear spoiler ................. .. .... . 190
Rear view camera
refer to Parking systems . . . . . . . 110, 111
Rear view mirror .. ...... .... ... .. .. .. 51
Rear window heating (automat ic climate
control) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Recirculation mode (automatic climate
control) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Recuperation . . . . . . . . . . . . . . . . . . . . . . . . 24
Refuelling . .. ............. .. .. .. ... 208
Remote control Un lock ing and locking ... .. .. .... .. . . 34
Repai r manua ls ............. ... .. .. . 282
Repairs Airbag system ............... .... . 155
Replacing Bulbs . ..... .. . .. ..... ... .. .. .... . 272
Fuses . ..... ... ... .... ... .. .. .... . 269
Tires and whee ls ......... .. .. .. .. . 246
W indshield wiper blades ... .. .. .... .. 49
Report ing Safety Defects . ... .. ... ... . 128
Request to wa rm eng ine by driving
Warn ing/ indicato r lights . .. .. .. .. .. .. 20
Reset button . . . . . . . . . . . . . . . . . . . . . . . . 25
Retractor . ... ... ... .... ... .. .. .... . 133
Revers ible mat . .. ...... .... ... .. .. .. 67
Rims Cleaning ................ ........ . 202
Roo f rack .. ... ............ .. .. .. .. .. 62
L oading ..... .. .. ..... ... .. .. .... .. 63
Roof weig ht . . . . . . . . . . . . . . . . . . . . . . . 63
s
SA FE ... .. ... ............ .. .. .. .. .. 25
Safe driving hab its . . . . . . . . . . . . . . . . . . 120
Safety belt position . . . . . . . . . . . . . . . . . 134
Safety belt he ight ad justment .. .. ... 136
Safety belts worn by pregnant women . 135
Safety belt pretens ioner ... .. .. .. .. .. . 13 6
Service and disposal . ... .. .. .. .. ... 13 7
Safety belt pretens ioners
P re sense .... ........... .. .. .. .. . 184 Safety be
lts ..... .. ... .. ..... .... . .. 133
Cleaning . ..... .. .. ... .. ..... ... .. 203
Danger to passengers who do not wear a
safety belt ...... ............. .... 131
Fastening . ...... ............. .... 133
Height ad justment ................ . 136
Improperly worn .... .. .. ... ..... .. 136
Not worn ..... .. .......... ... ... . 131
Safety be lt pos it ion ............ .. .. 134
Safe ty in str uctions ... .......... .. .. 133
Secu ring child safety seats . ... .. .. .. 176
Specia l considerations for pregnant
women ... .... .. .. ... .. ..... ... .. 135
U nfastening ... .. ................. 135
Warning/ind icator light ......... .... 130
Warning light .... ............. ..... 16
WhyYOUMUSTwearthem .......... 130
Worn p roperly ... ... .. .. ... ..... .. 132
Safety be lt tens ioner
drive select .... .. ... .......... .... . 96
Sa fety be lt warning ligh t ......... .. .. 130
Safety comp liance sticker ........... . 279
Safety eq uipment . ... ... ..... ... .. .. 120
Safety featu res for o ccupan t rest ra in t and
pro tection .. .. .. .. ... .......... .... 120
Safety gu idelines
Seat adjustment . . . . . . . . . . . . . . . . . . . . 53
Safety instr uctions
Engine compartment ........... .. .. 211
for side curtain airbags ............. 163
for using child safety seats ....... ... 169
for us ing safe ty belts ... ......... ... 133
Moni to ring the Advanced Airbag Sys-
tem ...... .. .. .. .. ........... .... 15 4
Safety systems Warning/ind icator lights .. ... ..... .. . 18
Saving f uel
Cylinder on demand System . . . . . . . . . . 24
Efficiency program . . . . . . . . . . . . . . . . . . 25
Recuperat ion . . . . . . . . . . . . . . . . . . . . . . 24
Seat adjustment Controls . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Driver's seat . . . . . . . . . . . . . . . . . . . . . . . 53
Front passenger's seat . . . . . . . . . . . . . . . 54
Front seats . . . . . . . . . . . . . . . . . . . . . . . . 53
Head restra ints . . . . . . . . . . . . . . . 56, 124
Safety gu idel ines . ... ........... ... . 53