
236 Tires and wheels
-Never mount used tires on yo ur vehicle if
you are not sure of their "previous histo
ry." Old used tires may have been dam
aged even though the damage cannot be
seen that can lead to sudden tire failure
and loss of vehicle control.
Glossary of tire and loading terminology
Accessory weight
means the comb ined weight (in excess of
those standard items which may be rep laced)
of automatic transmission, power steering, power brakes, power windows, power seats,
radio, and heater, to the extent that these
items are availab le as factory -installed equip
ment (whether installed or not) .
Aspect ratio
means the ratio of the he ight to the w idth of
the tire in percent. Numbers of 55 or lower in
dicate a low sidewall for improved steering re
sponse and better overall handling on dry
pavement.
Bead
means the part of the tire that is made of
steel wires, wrapped o r reinforced by ply cords
and that is shaped to fit the r im.
Bead separation
means a breakdown of the bond between
components in the bead.
Cord
means the strands forming the plies in the
tire.
Cold tire inflation pressure
means the tire pressure recommended by the
vehicle manufacturer for a tire of a designated size that has not been driven for more than a
couple of miles (kilometers) at low speeds in
the three hour period before the tire pressure
is measured or adjusted. -
If you notice unusual vibration or if the
veh icle pulls to one side when driv ing, a l
ways stop as soon as it is safe to do so and check the wheels and tires for dam
age.
Curb weight
means the weight of a motor vehicle w ith
standard equipment including the maximum
capacity of fuel, oil, and coolant, air condi
tioning and additional weight of optiona l
equipment.
Extra load tire
means a t ire design to operate at h igher loads
and at higher inflation pressures than the cor
responding standard tire. Extra load tires may
be identified as "XL", "xl", "EXTRA LOAD", or
"R F" on the sidewall .
Gross Axle Weight Rating ( "GAWR ")
means the load-carrying capacity of a s ingle
axle system, measured at the tire-ground in
terfaces .
Gross Vehicle Weight Rating ("GVWR")
means the maximum total loaded weight of
the vehicle.
Groove
means the space between two adjacent tread
ribs .
Load rating (code)
means the maximum load that a tire is rated
to carry for a given inflation pressure. Yo u
may not find this information on all tires be
cause it is not required by law.
Maximum load rating
means the load rating for a tire at the maxi
mum permissib le inflation pressure for that
tire.

252 Tire s and wheel s
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.
(D} Tips
Where snow chains are mandatory oncer
tain roads, this normally also applies to vehicles with All Wheel Drive.
Wheel bolts
Wheel bolts must always be tightened to the
correct torque .
The design of whee l bolts is matched to the
factory installed 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 fitted
secure ly and that the brake system functions
correctly .
In certain circumstances, you may not use
wheel bolts from a different vehicle -even if it
is the same mode l
¢page 282.
_& WARNING
Imprope rly tig htened o r maintained whee l
bolts can be come loose ca using loss of
contro l, a co llision and serious persona l in
jury.
- Always keep the wheel bol ts an d the
threads in the wheel hubs clea n so the
wheel bolts can tu rn easily and be prop
er ly tightened .
- Never grease or oil the wheel bo lts and
the threads in the wheel h ubs. They can
become loose w hile 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 whee ls bolts on your
vehicle.
- Always maintain the correct tighten ing
torq ue for the wheel bo lts to reduce the risk of a whee
l loss. If the tightening tor
que of the 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 high, the wheel bolts a nd threads
can be damaged and the whee l can be
come loose.
([) Note
The specified torque for the whee l bolts is
90 ft lb (120 Nm) with a tolerance of± 7,4
ft lb(± 10 Nm). Torque whee l bolts diago
nally. Afte r changing a whee l, the torque
must be checked as soon as possible wi th a
torque wrench -pre ferably by an au thor
ized Audi dealer or qualified workshop .
Low aspect ratio tires
Your Audi is factory-equipped 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 hand ling u nder a var iety of d riv ing condi
t ions . As k your author ized Audi dealer for
more details.
The low aspect ratio of these tires is ind icated
by a numeral of
55 or less in the tire's s ize
designation . The numeral rep resents the ratio
of the t ire's s idewa ll height in relation to its
t read width ex pressed in percentage. Conven
tiona l tires have a he igh t/w idth rat io of 60 or
more.
The performanc e of low -a sp ec t-ratio tires i s
pa rticularly sensitive to improper inflation
pre ssure . It is therefore important that low
a spect ratio tires are inflated to the specified
pre ssure and that the inflation pressure i s
regularly checked and maintained. Tire pre s
sures should be checked at least once a month and always befo re a long trip
¢ page 241, 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 ith potholes, curbs, gull ies .,..

-When removing heavy components like
these, anchor vehicle to hoist o r add cor
respond ing weig hts to mai nta in the cen
ter of g ravity. Otherwise, the vehicle
m ight tilt o r sli p off the hoist, causi ng
serious p ersona l injury .
Q) Note
-Be awa re of the fo llowing points befo re
li fting t he vehicle:
- The vehicle should never be lifted or
jacked up from underneath the engine
oil pan, the transmission housing , the
front or rear axle or the body side members. This could lead to serious
damage.
- To avoid damage to the underbody or
chassis frame, a rubber pad must be
i nserted between the floor jack and
the lift points .
- Before driv ing over a wo rkshop hoist,
check that the veh icle weight does not
exceed the permissibl e lifting capacity
of the hoist.
- Before driving over a workshop hoist,
ensure that there is sufficient clear ance between the hoist and low parts
of the vehicle.
Emergency situations 275
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28 2 Con sum er Inf ormation
-Always make sure the transmission se
lector lever (automatic transmiss ion) is
in "P" (Park position) and the park brake
is f irmly app lied .
@) For the sake of the environment
-Changing the engine settings wi ll ad
versely affect em iss ion levels. This is det
rimental to the environment and increas
es fuel consumption .
- Always observe env ironmental regula
tions when dispos ing of old engine oil,
used brake fluid, dirty engine coolant,
spent batteries or worn out tires.
- Undeployed airbag modules and preten
s ioners might be classified as Perchlo
rate Material -spec ial handling may ap
ply, see www.dtsc.ca .gov/hazardous
was te/perch lorate . When the veh icle or
parts of the res traint system including
airbag modules safety belts wit h preten
sioners are scrapped, all applicable laws
and regulations must be observed. Your
authori zed Aud i dea ler is familiar with
these requirements and we recommend
that you have your dealer perform this
serv ice for you .
Additional accessories,
modifications and
parts replacement
Additional accessories and parts
replacement
Always consult an authorized Audi dealer be
fore purchasing accessories.
Your veh icle incorporates the latest safety de
sig n featu res ensu ring a high standard of a c
tive and passive safety .
This safety could be comp romised by non-ap
proved changes to the ve hicle. For this reason ,
if pa rts have to be replaced , please obse rve
the following points when install ing addition
a l accessories: Approved Audi accessories and genuine Aud
i
parts are available from authorized A udi deal
ers.
T hese dea le rs a lso have the necessary facili
ties, tools and tra ined specialists to install the
parts and acc essories proper ly .
A WARNING
-Using the wrong spare parts or using non-
approved accessories can cause damage to
the veh icle and ser ious persona l injury.
- Use on ly accessories express ly approved
by Audi and ge nuine Audi spare parts
- These parts and accessories have been
specia lly designed to be used on yo ur ve
h icle .
- Never install accessor ies such as tele
phone crad les or beverage ho lders on a ir
bag covers or within the airbag deploy
ment zones . Do ing so will increase the
risk of injury if a irbags are triggered in an
accident!
- Before you check anything in the engine
compa rtment, always read and heed a ll
WARNI NGS
9 page 213 .
(D Note
-If items other than genu ine Audi spare
parts, add-on equipment and accessory
items are used or if repair work is not
performed accord ing to specified meth
ods, this c an resu lt in seve re damage to
your vehicle's eng ine and body (such as
corrosion) and adversely affect yo ur vehi
cle's warranty .
- T he innovative a luminium concept of
your Audi AB means that all servicing, re
pairs or other work on the vehicle body
must be carr ied out exclusive ly by an Au
di workshop .
- If emergency repairs must be performed
elsewhere, have the veh icle examined by
an authorized Audi dealer as soon as
possible .
- The manufacturer cannot be held liable
for damage wh ic h occurs due to failure
to comply with these stipulations .

286 Index .:..:..:..::....::.....:..._ ___________________________ _
Auto Safety Hotline ....... ... .. .... . 132
Average consumption ........... .. .... 24
Ave rage speed . . . . . . . . . . . . . . . . . . . . . . . 24
Avoid damaging the vehicle .. .. .. .... . 195
B
Battery ... .. .. . .. ..... ..... .. .. .. . 230
Charging . .. .. . ... ... .. .. .. .. .. .. . 233
Important warnings .. .... .. .. .... . 231
Location ... ... ............ .. .... . 231
low ..... .. ................ ..... . 192
Replacing the battery ....... ... ... . 234
State of cha rge .... .... ....... .. .. . 192
Winter operat ion .. ... .... .. .. .. .. . 230
Working on the battery .. ... ... .... . 231
Before driving .............. ... .... . 124
Blended gasoline ....... .... ... .. .. . 215
Blower (automatic climate control) . . . . . . 77
Body cavity sealing .. ..... .. .. .. .. .. . 208
Booster seats ................ ... ... 174
Brak e fluid
Ch anging the brake fluid ... .. .. .. .. .
230
Che cking the brake f luid level ... .. .. . 229
What is the correct brake flu id level? ..
229
What should I do if the brake fluid warn -
ing light comes on? ........ .... ....
229
Brake system
Anti-lock b raking sys tem ... .. .. .... ..
19
Brake a ssi st s ystem ...... ..... .. .. . 187
Brake booster ............. ... .. ... 190
Brake fluid .... ... .... ..... .. .. .. . 229
Brake fluid spec ificat ions for refill and re-
p lac ement ....... ....... .. .. .. .. .
230
Brake light defect ive .. .. .. .. .. .. .. . . 21
Brake pads ............... ... .... . 194
Electromechanica l parking brake .... .. 82
Fluid reservoir ............ ... .... . 229
How does moisture or road s alt affect the
br akes? .. ...... .. ... .... .. .. .. .. .
189
Warning/indicator lights .... .... ..... 14
Worn brake pads symbol ....... .. .... 19
braking guard .............. ... .... .. 87
Messages . . . . . . . . . . . . . . . . . . . . . . . . . 94
Se ttings . .. .. . .. ..... ..... .. .. .. .. 94
Break-in period .............. .. .... . 194
Brake pads ............... ... .... . 194
Tires 194
Bulbs ..... ..... .. ............. .... 269
C
Cal iforn ia Proposition 65 Warn ing . .. .. 220
Battery specific . .................. 232
Capacities .. .. .. .. .. ...... ..... .. .. 278
Engine oil ....... ................ . 222
Car care ...... .. .. .. ....... .... .... 203
Exterior ... .. .. .. ...... ..... .. .... 203
Interior .......... .... ........... . 209
Car carrier
Transporting your vehicle .......... .
274
Catalytic converter 195
Center armrest
Cockpit ...... ... .. .............. ..
5 7
Rear .... ... .. .. .. ...... ..... .. .. . 64
Central locking .. .. .... ... .. .. .. .. .. . 30
Eme rgency locking ... ... .... ... .. .. . 34
Certification .. .. . .. ... ..... ... ... .. 283
Chang ing a wheel .. .......... ...... . 259
Changing engine oil ................ . 226
Chassis (undercoating) .. ....... .... .. 208
Checking
Engine coolant level ............... .
227
Tire pressure ... .. ....... ...... .. .. 241
Child restraints
Danger of using child restraint s in the
front sea t . . . . . . . . . . . . . . . . . . . . . . . .
144
Where can I get additional information
about child restraints and the ir use? ..
184
Child restraint system anchors ..... ... 178
Child safety . .. .. .. ...... ..... .. .... 166
Convertib le locking retractor ..... .. .. 175
Guidance fixtures for lower anchorages 180
Important safety instructions for using
child saf ety seats ................. .
169
Important things to know when driving
wi th children .. .. ....... ...... ....
166
Tether anchors ... ....... ...... .. .. 1 82
Tether straps .. .. ................ . 182
Child safety lock
Rear doors (mechanical) . ..... .. .... .
37
Rear doors (power) ...... ..... ..... . 38
Child safety seats . ................. . 171
Booster seats .... ................. 174
Convertib le child sea ts . . . . . . . . . . . . . 172

288 Index
Doors
M echanical child safety lock .. .... .. .. 37
Power child safety lock . . . . . . . . . . . . . . 38
Driver information system
CD/radio display . . . . . . . . . . . . . . . . . . . . 23
Door/r ear lid warning . . . . . . . . . . . . . . . 23
Exterior temperature display ....... .. 23
On-board computer . . . . . . . . . . . . . . . . . 24
Driver seating position ............... 125
drive select .. .. . .......... .. .. .... . 103
adaptive a ir suspension/sport ........ 103
Adaptive dampers ................. 103
Cornering light ........... .. .. .... . 103
Dynamic steering .................. 103
Safety belt tensioner ............... 103
Sport differential .......... ... .... . 103
Driving safely . . . . . . . . . . . . . . . . . . . . . . 124
Driving through water ............... 196
Driving time . . . . . . . . . . . . . . . . . . . . . . . . 24
Duplicate key . . . . . . . . . . . . . . . . . . . . . . . 28
Dynam ic steering . . . . . . . . . . . . . . . 22, 103
E
Easy entry feature .......... .... .... .. 79
Einparkhilfe Sensoren/Kamera reinigen ...... .... 205
Elect rical accessories (sockets) . . . . . 64, 70
E lectromechanical park ing brake
Emergency braking . . . . . . . . . . . . . . . . . 84
Operation . . . . . . . . . . . . . . . . . . . . . . . . . 82
Parking .................... ..... .. 83
Releasing and closing ..... .. .. .. .. . . 82
Starting assist ........... .. .. .... .. 83
Starting from rest .......... .. .... .. 83
Starting
off with a tra iler . . . . . . . . . . . . . 83
Warning/indicator lights ..... .. .. .. . . 15
E lectronic different ial lock ( EDL) .. .... . 187
Warning/indicator lights ... .. .. .. .. . . 19
Electronic immobilizer . . . . . . . . . . . . 25, 29
Electronic power control (EPC)
warning/indicator light ..... .... ..... 20
Electronic speed limiter ......... .... .. 27
Electronic Stability Control (ESC) .. ..... 187
Warn ing/indicator lights ....... .. .. .. 18 Emergency
actuation
Doors ... ..... .. .. .............. .. 34
Parking lock ... .. ................. 113
Power sunroof . .. ............. .... . 40
Rear lid ... .... .. ............. .... . 37
Emerg ency braking ................... 84
Emergency flasher ................. .. 44
Warning/ind icator lights ........ .. .. . 22
Emergency operation Panoramic sunroof ... .......... .. .. . 42
Sun shade (roof) ................... 42
Emergency starting ................ . 270
Emergency towing .. ............ .. .. 272
Emergency warning triangle .......... 256
En ergy management ................ 192
Engine Compartment ..................... 221
Coolant ... .. .. .. .. ... ........ .. .. 227
Data ..... .... .. ............. .... 278
starting ......... .. .............. .. 80
Starting with jumper cables ......... 270
Stopping . ..... .. .. .............. .. 81
Engine compartment ................ 221
Closing the hood . ... .......... .. .. 220
Opening the hood ............. .... 219
Safety instructions ................ . 219
Working in the engine compartment .. 219
Engine coolant ..................... 22 7
Adding coolant . .. ... .......... .. .. 228
Check ing the engine coolant level ..... 227
Expansion tank ... ................. 227
Malfunction symbol ................. 15
Radiator fan ... .. ............. .... 229
Temperature gauge ............ .... . 10
Engine oil ...... .. .. .............. . 222
Adding ......... .. .............. . 225
Additives . ..... .. ............. .... 225
Changing . .. .. .. ............. .. .. 226
Checking oil level .... .......... .. .. 225
Checking the engine oil level ....... .. 224
Consumption .. ................... 225
I ndications and conditions requiring ex-
tra checking . ...... .. ...... ....... 224
Indicator light ... ............. .... . 17
Oil consumpt ion .. ............. .... 223
Oil grad es ..... .. ................ . 222
Oil level symbol . . . . . . . . . . . . . . . . . . . . 20

Pressure malfunction ............ .. .. 17
Recommended oil check int ervals .. .. . 224
Sensor defective . . . . . . . . . . . . . . . . . . . . 20
Specification and viscosity .. .. .. .. .. . 222
Engine speed limitation ....... .. .. .. .. 20
Engine start system (indicator lights) .. .. 17
Entry assistance . . . . . . . . . . . . . . . . . . . . . 60
Environment Break-in period ........... .... .. .. . 194
Catalytic converter ................. 195
Disposing of your vehicle battery . ... . 234
Driving at high speeds ........ ... .. . 197
Driving to minimize pollution and noise 196
Fuel . .... .. .. .. ........... .. .. ... 217
Fuel economy ............ .... .. .. . 196
Leaks under your vehicle ........ .... 219
Letting the vehicle stand and warm up . 197
Proper disposal of drained brake fluid . 230
Proper disposal of drained engine coo l-
ant . .. .. .. .... ............. .. .. . 228
Proper disposal of drained engine
oil . . . . . . . . . . . . . . . . . . . . . . . . . 225, 226
Recycling used engine oil ............ 225
Unleaded fuel ............ .... .. ... 215
What should I do with an old battery? . 234
ESC (Electronic Stability Control)
Warning/indicator lights ............. 18
Event Data Recorder (EDR) ........ .... 187
Exhaust tail pipes .......... .... .. .. . 209
Expansion tank .............. .. .. .. . 227
Exterior lighting ................. ... . 43
Exterior mirrors Adjusting .. .. ........... .. .. .. .... 51
Dimming . .. ............. .... .. .... 51
Heating .. .. ... ... .... ... .. .. .. .. .. 51
Exterior temperature display ....... .. .. 23
F
Fa stening
Booster seats .................. .. . 174
Convertible child safety seats . . . . . . . . 172
Infant seats . ............... ... ... 171
Floor mats . .. ............. .... .. .. . 130
Folding table . . . . . . . . . . . . . . . . . . . . . . . . 65
Foot pedals . ... .............. ... ... 129
Index 289
For the sake of the environment
Gasoline fumes and the environment .. 217
Reduc ing engine noise by early upshift-
ing ......... .. .. .................. 10
Refueling . .. .. .. .... ............. 217
Saving fuel by early upshifting ........ 10
Four zone automatic climate control ... .. 76
Front airbags Description . . . . . . . . . . . . . . . . . . . . . . . 146
How they work . .. .. . .......... .... 151
Frontal collisions and the laws of physics 135
Front passenger seat adjustment . . . . . . . 60
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . 54
Adjust ing . .. .. .. .. .. ........... .. 126
Child restraints in the front seat ..... . 144
Fuel Additives ........ .. ............... 215
Blended gasoline . ................. 215
Current consumption ........... .. .. . 24
Fuel filler flap emergency release ... .. 218
Fuel filler neck ... .. .............. . 216
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . 11
Gasoline .. .. .. .. .. ............... 215
Gasoline additives .... ......... .. .. 216
Low fuel level symbol . . . . . . . . . . . . . . . 21
Octane rating .. ... ...... ......... . 215
Recommendation ... . .. .... ........ 215
Refuelling ....... .. ............... 217
Reserve ... .. .. .. .... ............. . 11
Tank capac ity . . . . . . . . . . . . . . . . . 11,278
Fuses Assignment . .. .. .. ... ....... .... . 265
Replacing ....... .. ............... 265
G
Garage door opener (Homelink ®) .. ... . 121
Garment hooks . . . . . . . . . . . . . . . . . . . . . . 72
Gas discharge lamps ................. 269
Gauges Engine coolant temperature . . . . . . . . . . 10
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . 11
Speedometer .. .. .. . .. .... ........ . 25
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 11
Trip odometer . .. .................. 25
General illustration . . . . . . . . . . . . . . . . . . . 8
Generator (warning/indicator lights) .... 16
G lossary of tire and loading terminology 236
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