248 Tire s and whee ls
- 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.
- 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 winter tires
are designed for the cond itions that are
Glossary of tire and loading terminology
Acces sory weight
means the comb ined we ight (in excess of
those standard 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 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 ti re that is made of
steel wires, wrapped or reinforced by ply cords
and that is shaped to fit the rim.
Bead s eparation
means a b reakdown of the bond between
components in the bead.
Cord
means the strands forming the plies in the
tire . typica
l in those seasons. Audi 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 cold tem peratures, cracks ca n form on the tread
bars, resulting in permanent tire damage
that can cause loud driving no ise and un
balanced t ires. Audi is not responsible for
th is type of damage .
Cold tire inflation pre ssure
means the t ire p ressure recommended by the
vehicle manufacturer fo r a tire of a des ignated
s ize that has not bee n driven for more than a
coup le of miles (k ilometers) at low speeds in
the three hour period before the tire pressure
is measured or adjusted.
Curb weight
means the we ight of a motor ve hicle w ith
standard equipment including the max imum
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 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 -carry ing capacity of a s ingle
axle system , measured at the tire-ground in
terfaces.
Gr oss Vehicle Weight Rating ("GVWR ")
means the maximum total loaded we ight of
t h e vehi cle. .,.
Eyeg lasses compartment . ... .. .. .. .. .. 77
F
Fall line
Fan 2
10
Radiato r ... .. ........... .. .. .. .. . 240
Fastening Booster seats ............ .. .. .. .. . 186
Convertible c hild safety seats . . . . . . . . 185
Infant seats .. ..... ... .... ... ... .. 184
Fl at ti re
C hanging .. .. .. .. .. .. ... .. .. .. ... 273
Fl exible fuel . .. ........... .. .. .. ... 22 3
F loor mats . . . . . . . . . . . . . . . . . . . . . . . . . 144
F og lights . . . . . . . . . . . . . . . . . . . . . . . . . . 5 0
Fold ing chocks ............... .. .... 268
Folding the rear seat forward . . . . . . 67, 68
F oo t pedals . . . . . . . . . . . . . . . . . . . . . . . . 144
For the sake of the environment Gasoline fumes and the envi ronment .. 226
Le tting the engine warm up . . . . . . 83, 86
R educing e ng in e noise by ea rly ups hift-
i ng .. .. .. .. .. ............... .. .. .. 11
Refue ling . .... .. .. ... ... .. .. .. ... 226
Saving fue l by ear ly upshift ing . ... .. .. 11
Fr ont airbags
D escr ipt io n ..... ......... .. .. .. .. . 16 1
H ow t hey work ........... .. .. .. .. . 166
F ronta l co llisions and the laws of physics 150
Fr ont ashtray ... ... .. ... ... .. .. .. .... 75
Fr ont seats .. ............. .... .. .... 6 1
Ad justi ng .. .. ........... .. .. .. ... 1 41
C hild r estraints in the fron t seat . .. .. . 158
Fue l
Addit ives ... .. ........ ... .. .. .. .. . 222
B lended gasoline ......... .. .. .. .. . 22 2
Consu mption . . . . . . . . . . . . . . . . . . . . . . 2 3
Fill er ne ck .. .... ......... .... .. .. . 225
Fu el gauge .... .. .. ..... ... .. .. .... 12
Gasoline additives ..... ... .. .. .. .. . 224
Octane rating ... .. .... ... .. .. .. .. . 222
Recommendation ......... .. .. .. .. . 222
Refue lling .. ............. .... .. ... 226
Reserve .. ... ............. ... ... ... 12
Tank capacity ............... .. .... 290
Un lock ing the fue l filler f lap by ha nd .. 227
Index 303
Fuel economy messages (e fficiency p ro -
gram) . ... .. .. .. .... . ... ...... ... .. . 25
Fuel fi lle r flap
Unl ocking the fuel fi lle r flap by hand .. 227
Fuel supply too low . . . . . . . . . . . . . . . . . . 34
Fuse a rrangement ... . .. .. ..... ... .. 279
G
Garage door o pener ( Hom eLink) ..... .. 135
Gas discharge lamps .. ............... 282
Ga uges
Engine coolant temperature . . . . . . . . . . 10
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . 12
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 11
General i llustration
Instruments and controls .... ... .. .. .. 8
General rules and dr iv ing tips ..... .. .. 210
B efo re driv ing offro ad .......... .... 210
D rivi ng o ffroad . .. .. . .............. 210
G lossary of tire and loading term inology 248
G love compartment . . . . . . . . . . . . . . . . . . 76
Cooling box . . . . . . . . . . . . . . . . . . . . . . . . 77
G low p lug sys tem
In dicator light ..... . .. .. ..... ... .. . 15
GPS cont ro lled clock . . . . . . . . . . . . . . . . . . 12
G radient angle .. ...... ............. 210
G ross Ve hicle Weig ht Rating (GVWR) . .. 289
G rou nd clearance .. ... ... ...... ..... 210
H
Head lights
Adaptive light .. ...... ............. . Sl
Cleaning .. .. .. .. .. . .. .... .... .... 218
Fog lights ........ ................. SO
Head light range control defect ive ..... 35
L eft hand drive, r igh t h and drive .. .. .. . 51
Re ar fog ligh ts . .. .... ............. . SO
T ra ve l mode . .. .. ............... .. . 51
Washe r reservoir ... . .. .. ..... ... .. 246
Washe r system . . . . . . . . . . . . . . . . . . . . . 54
Head restra ints .. ...... ........... .. 142
Adjus ting . . . . . . . . . . . . . . . . . . . . . . . . 142
F ron t se ats . . . . . . . . . . . . . . . . . . . . . . . . 65
R ea r seats . . . . . . . . . . . . . . . . . . . . . . . . . 65
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