250 Tire s and wheel s
-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 t ire failure
and loss of vehicle control.
- If you notice unusual vibration or if the
vehicle pulls to one side when driving, al
ways stop as soon as it is safe to do so
and check the wheels and tires for dam
age.
(D Note
Please note that summer and wi nte r tires
are designed for the cond itions that are
Glossary of tire and loading terminology
Accessory weight
means t he comb ined we ight (in excess of
those sta ndard items which may be rep laced)
of au toma tic tra nsmission, power steer ing,
power brakes, power windows, power seats,
radio, and heater, to the extent that th ese
items are availab le as factory -installed equip
ment (whether installed or not) .
Aspect ratio
means t he 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 ti re that is made of
steel wires, wrapped or reinforced by ply cords
and that is shaped to fit the rim.
Bead separation
means a b reakdown of the bond between
components in the bead.
Cord
means the strands forming the plies in the
tire . typ
ica l in those seasons . Aud i recommends
using winter tires during the winter
months . Low temperatures signif icant ly
decrease the e lasticity of summer tires,
which affects tract ion and brak ing ability.
If summer tires are used in very co ld tem
peratures, cracks ca n form on the tread
bars, res ulting in permanent tire damage
that can cause loud driving no ise and un
balan ced t ires. Audi is not responsible for
th is type of damage .
Cold tire inflation pressure
means the tire p ressu re recommended by t he
vehicle manufacturer fo r a tire of a des igna ted
s iz e that has not bee n driven for more than a
coup le of miles (k ilometers) at low speeds in
t h e three hour period before the tire pressure
is measured or adjusted.
Curb weight
mea ns the we ight of a motor ve hicle with
standard equipment in cl uding the max imum
capacity of fuel, oil, and coolant, air condi
tioning and additional weight of optiona l
equipment.
Extra load tire
me ans a t ire design to operate at higher loads
and at h igher inflation pressures than the cor
responding standard tire . Extra load tires may
be identified as "XL", "x l" , "EXTRA LOAD", or
"RF" on the sidewall.
Gross A xle Weight Rating ("GAWR ")
means the lo ad -c a rry ing c apac ity of a s ingle
axle system , measured a t the tire-ground in
terfaces.
Gross Vehicle Weight Rating ("GVWR ")
mea ns the maximum total loaded we ight of
t h e ve hicl e. .,.
306 Index
Front seats . ............... ... .... .. 57
Adjusting . ................. ..... . 136
Child restraints in the front seat ... .. . 154
Fuel Addit ives . .... ........... .. .. .... . 228
Bl ended gasoline .......... ... .... . 228
Current consumption . . . . . . . . . . . . . . . . 24
Economy messages (efficiency program) 25
Fuel filler flap emergency relea se .. .. . 231
Fuel filler neck ............. .. .... . 229
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . 11
Gasoline ... ... ... .... ......... .. . 228
Gasoline additives ............ .. ... 229
L ow fuel level symbo l . . . . . . . . . . . . . . . 21
Octane rating .......... .. .. .. .. .. . 228
Recommendation .......... ... .... . 228
Refue lling . ................. ..... . 230
Reserve .................... ..... .. 11
Tank capacity . . . . . . . . . . . . . . . . . 11,292
Fuses Assignment ...................... 279
Replacing .. ................ ..... . 279
G
Garage door opener (Homelink®) . .. .. . 132
Garment hooks .. ... .... ......... .. .. 75
Gas discharge lamps ......... ... .. .. . 283
Gauges Engine coolant temperature .. .. .. .... 10
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . 11
Speedometer . . . . . . . . . . . . . . . . . . . . . . 26
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 11
Trip odometer . . . . . . . . . . . . . . . . . . . . . 26
General illustration ............ .... ... 8
Generator . ................. .. .... .. 16
Glossary of tire and loading terminology 250
Glove compartment (cooled) ...... ..... 74
Gross Vehicle Weight Rating (GVWR) ... 290
H
Headlights
Cleaning system ............ .. .... .. 52
Defective . . . . . . . . . . . . . . . . . . . . . . . . . 21
He adlig ht range contro l . . . . . . . . . 21, 45
High beam assist .............. ... .. 48
Washer reservoir ............. .. ... 247 Head
restraints . . . . . . . . . . . . . . . . . 64, 138
Adjusting ..... .. ................. 138
H eated
exter ior mirrors . . . . . . . . . . . . . . . . . . . . 54
rear window ... .. ............. .... . 80
seats ......... .. .. .............. .. 80
windshield washer spray nozz les . . . . . . 52
H eating .. .. .. .. .. .. ............. .. . 78
Heavy clothing and safety belts ........ 147
High beam . ..... .. ............. ..... 47
High voltage warning label ..... .. .. .. 290
Hill descent contro l ................ . 118
Homelink ® un iversal remote control ... 132
Hood (release lever) ... .......... .. .. 232
Horn ..... ..... .. .. .............. ... 8
How are child restraint system anchors re-
lated to child safety ............. .. .. 189
How many air bags does my vehicle have? 159
How often should I check my tire pres-
sures? ......... .. .. .............. . 256
How safety belt pretens ioners work .. .. 150
Hydroplaning ... .. ............. .... 260
I
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . 26
Important things to do before driving .. 134
Improperly worn safety belts .......... 150
Indicator lights
refer to Warning/indicator lights ..... . 11
Infant seats .. .. .. ... .......... .... 182
Installing child safety seats Safety belts . . . . . . . . . . . . . . . . . . . . . . 186
Installing the upper tether strap on the
anchorage . ..... .. ................. 194
Instruments Adjusting the light ing .......... .... . 50
Instruments and controls
General illustration . . . . . . . . . . . . . . . . . . 8
Instrument cluster .................. 10
Interior lighting
Ambience lighting ............. .. .. . 49
Front and rear ... .. ..... ...... .. .. . 49
Intermittent (windshield wipers) ... ... . 52