winter tires AUDI R8 SPYDER 2011 Owners Manual

each other and that have somewhat different purposes:
Speed warning 1 [i;[i ( Canada models )
You can use speed warning 1 to set the maxi­
mum speed wh ile you are driv ing . T his se tting
will remain in effect until you t urn off the igni­
tion, assuming that you have not changed or reset the setting .
The speed warning symbo l
[&1/lDl (Ca nada
models) in the warn ing 1 display appea rs
when you exceed the maximum speed. It goes
out when the speed falls be low the stored
maximum speed.
The speed warning symbo l wi ll also go out if
the speed
exceeds the stored maximum speed
by more than about 25 mph (40 km/h) for at
least 10 seconds. The stored maximum speed
is deleted .
Setting speed warning 1
r=;, page 29 .
Speed warning 2 EDJ/[al (Canada models )
Storing warning 2 is recommended if you al­
ways
want to be reminded of a certa in speed,
for example when yo u are traveling in a coun­
try that has a general maximum speed limit,
or if you do not want to exceed a spec ified
speed for winter tires.
The speed warning 2 symbol,
[il 1ra1 (Can ada
models) appears in the display when you ex­
ceed the stored speed limit . Unlike warning 1,
it will not go out until the vehicle speed drops
be low the stored speed limit.
Sett ing speed warning 2
r=;, page 29.
(1') Tips
Even though you r vehicle is equipped with
a speed warning sys tem, you should s till
watch the speedometer to make sure you
are not driving faster than the speed limit.
Dr iver in formation system 29
Speed warning 1: setting a speed limit
Warning threshold 1 is set by the button.
Fig. 26 Sect ion of instrument cluster: Set/Check but ·
ton
Storing the ma ximum spee d
.,. Drive at the desired maximum speed.
.,. Press the knob button
c::> fig. 26 until the
symbol
r=;, page 28, fig. 25 appears.
Resett ing th e ma ximum sp eed
.,. Dr ive the veh icle at a speed of at least
3 mph (5 km/h)
.,. Press the knob for more than 2 seconds.
T he speed warn ing symbol
lllH (USA models)/
Hll display when you release the button to indi­
cate that the maximum speed has been stored
successfully. The maximum speed remains
stored until it is changed by pressing the but­
ton again briefly or unt il it is deleted by a
lengthy push on the button .
Speed warning 2: setting a speed limit
Switches in the wiper arm are used to operate
warning threshold
2.
'----1 @
Fig. 27 Controls

Driving with your
quattro ®
With all-wheel drive, all four wheels are driv­
en .
General information
With all-wheel drive, power is distributed to
all four wheels . This happens automatically
depending on your driving style and the road
conditions at the time. See also
t::;> page 150.
Winter tires
When driving in the winter, your vehicle with
all-wheel drive has an advantage, even with regular tires. In winter road conditions it may
be advisable to mount winter tires (or all -sea­
son t ires) for improved driveability and brak­
ing: these tires must be mounted on
all four
wheels.
Snow chains
Where snow chains are mandatory on certain
roads, th is normally also applies to vehicles
with all-wheel drive
Q page 204 , Snow
chains.
Replacing wheels/tires
Only the wheel/tire sizes specified by the
manufacturer may be used on vehicles with
all-wheel drive
<=> page 199.
A WARNING
-Always adjust your driving to road and
traffic conditions. Do not let the extra
safety afforded by all-wheel drive tempt
you into taking extra risks.
- Although a ll-wheel drive is very effect ive,
always remember that braking capacity
is limited by tire traction. You should
therefore not drive at excessive speeds
on icy or slippery road surfaces.
- On wet road surfaces, be careful not to
drive too fast because the front wheels
cou ld beg in to slide on top of the water
(aquaplaning). If this should occur, you
will have no warning from a sudden in­
crease in engine speed as with a front-
-
Intelligent technology 155
wheel drive vehicle. Always drive at
speeds which are su ited to the road con­
ditions. -risk of crash.
Energy management
Starting ability is optimized
Energy management controls the distribution
of electrical energy and thus optimizes the
availability of electrical energy for starting the engine.
If a vehicle with a conventional energy system
is not driven for a long per iod of time, the bat­
tery is discharged by idling current consumers
(e .g. immobi lizer). In certain circumstances it
can resu lt in the re being insufficient energy
available to start the engine.
Intelligent energy management in your vehi­
cle handles the distribution of e lectr ical ener­
gy. Starting ability is markedly improved and
the life of the battery is extended .
Basically, energy management consists of
battery diagnosis , idling current manage­
ment
and dynamic energy management .
Battery diagnosis
Battery diagnosis continuously determines
the state of the battery. Sensors determine
battery voltage, battery current and battery
temperature . This determines the current
state of charge and the power of the battery.
Idling current management
Idling current management reduces energy
consumption while the vehicle is standing.
With the ign ition switched off, it controls the
energy supply to the various electrical compo­
nents. Data from battery diagnosis is consid­
ered.
Depending on the battery's state of charge,
individual cons umers are gradually turned off
to prevent excessive discharge of the battery
and thus maintain starting capability. .,..
•
•

162 Cleaning and protection
Hand washing
When washing your vehicle by hand, first soft­
en the dirt with copious amounts of water and
rinse it
off as best you can.
Then clean the vehicle using a soft
sponge, an
auto glove or a low-pressure wash brush.
Work from the top down to the bottom, start­
ing with the convertible top
¢ page 163. Use
a
shampoo only for v ery stubborn dirt.
Rinse the sponge or auto glove thoroughly at
frequent intervals.
Clean the wheels, door sills and similar areas last. Use a separate sponge for this.
_& WARNING
-Car washes with conveyors can damage
the vehicle tires, which could cause the tire to lose pressure suddenly while driv­
ing and put you at risk for an accident.
Do not use car washes with conveyors.
- Switch
off the ignition when you wash
your vehicle to avoid an accident.
- Protect your hands and arms from sharp
metal edges when you clean the under­
body, the inside of the wheel wells or the
wheel covers to avoid cutting yourself.
- When washing your vehicle in the winter :
Moisture and ice in the brake system can
affect the brakes.
- Never wash tires with a jet that sprays
water in a direct stream . This could cause
invisible damage to the tires and weaken
them, even if the spray is from a relative ­
ly long distance and for a short time .
Damaged and weakened tires can fail
and cause accidents and personal injury.
(D Note
- Never drive your vehicle through any au ­
tomatic car wash that fails to provide ei­
ther sufficient clearance for your vehicle
or sufficient track width for your tires. Risk of expensive damage to the vehicle's
underbody , tires, and rims!
- As described in your Warranty
& Mainte­
nance booklet, damage or malfunction due to misuse of the vehicle or failure to
operate the vehicle in accordance with
the
instructions of this Owner's Manual
will not be covered under warranty.
- Fold the exterior mirrors flat - there is a
risk of damaging the exterior mirrors .
Power folding exterior mirrors must not
be folded in or out by hand. Use the pow­
er function!
- Do not wash the vehicle in direct sun­
light. You may damage the paint.
- Do not use sponges designed to remove
insects, rough kitchen sponges, or simi­
lar products. You risk damaging the
paint surface.
- You should remove debris (such as in­
sects) from the headlight lenses on a
regular basis, for example when refuel­
ing your vehicle. Never clean the head­
lights with a dry cloth or sponge . Use a
wet cloth or sponge .
It is best to use
soapy water.
- Never clean tires using a nozzle that
sprays water in a direct stream. Damage
can occur even with a relatively long
spraying distance and for a very short
time.
- To avoid damaging your vehicle, always
make sure that there is sufficient dis­
tance between the spray head and soft materials like rubber hoses, plastic parts
and sound-deadening materials. Never
aim the spray head at the same point for
a long time. This also applies to cleaning
headlights and painted bumpers. Re­
member: the closer the nozzle is to the
surface of the material, the greater the
stress on the material.
- Never clean the convertible top using a
power washer.
@) For the sake of the environment
Wash your vehicle only at specially de­
signed facilities. They can prevent any dirty
water contaminated by oil from entering
the waste water. In certain areas washing
a car outside of such facilities is not per­
mitted.

Maximum loaded vehicle weight
means the sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight, and
(d) Production options weight
Maximum (permissible) inflation pressure
means the maximum cold inflation pressure
to which a tire may be inflated. Also called
"maximum inflation pressu re."
Normal occupant weight
means 150 lbs. (68 k ilograms) times the
nu mber of occupants seated in the vehicle up
to the total seating capacity of your vehicle.
Occupant distribution
means distribution of occupants in a vehicle .
Outer diameter
means the overa ll diameter of an inflated new
tire.
Overall width
means the linear distance between the exteri­
ors of the sidewalls of an inflated tire, includ­
ing e levations due to labeling, decorations, or
protective bands or ribs.
Ply
means a layer of rubber-coated para llel cords.
Production options weight
means the comb ined weight of those installed
regular production options weighing over 5
lbs . (2 .3 kg) in excess of those standard items
which they replace, not previously considered
in curb weight or accessory weight, including
heavy duty brakes, r ide leve lers, roof rack,
heavy duty battery, and specia l trim .
Radial ply tire
means a pneumatic t ire in which the p ly cords
that extend to the beads are laid at substan­
tially 90 degrees to the centerline of the
tread.
Tires and wheels 191
Recommended inflation pressure
see ~ page 190, Cold tire inflation pressure.
Reinforced tire
means a t ire designed to operate at higher
loads and at higher inflat ion pressures than
the corresponding standard tire. Re inforced
ti res my be ident ified as "XL" , "xl", "E XTRA
LOAD", or "RF" on the sidewall.
Rim
means a metal support for a tire or a tire and
tube assembly upon which the tire beads are
seated.
Rim diameter
means nom inal d iameter of the bead seat. If
you change your wheel s ize, you w ill have to
purchase new tires to match the new r im di­
ameter.
Rim size designation
means r im diameter and width.
Rim width
means nom inal distance between rim fla nges.
Sidewall
means that portion of a tire between the
tread and bead.
Speed rating (letter code)
means the speed at which a tire is designed to
be driven for extended periods of time. The
ratings range from 93 mph (150 km/h) to
186 mph (298 km/h)
~ page 200 . You may
not find this information on all tires because
it is not requ ired by law.
T he speed rating letter code, where applica­
ble, is molded on the tire sidewall and indi­
cates the maximum pe rm issib le road speeds
~ .&. in Winter tires on page 204.
Tire pressure monitoring system
means a system that detects when one or
more of a veh icle's tires are underinflated and
illuminates a low tire pressure warning tell­
tale.
•
•

200 Tires and wheels
contribution to good road holding and safe
handling when in good condition and properly
inflated
¢ ,& .
We recommend that all work on tires and
wheels be performed by an authorized Audi
dealer. They are familiar with recommended
procedures and have the necessary special
tools and spare parts as well as the proper fa­
cilities for disposing of the old tires.
Authorized Audi dealers have the necessary
information about technical requirements for
installing or changing tires and rims.
Replacing tires and wheels
Tires should be replaced at least in pairs and
not individually (for example both front tires
or both rear tires together).
Be sure to read and heed the information to
the tire pressure monitoring system
¢page 201.
Always buy replacement radial tires that have
the same specifications as the tires approved
for your vehicle by Audi. Replacement tires
must always have the same load rating speci­
fication as the original equipment or approved optional tires listed in the table
¢page 193.
Audi-approved specification tires are specially
matched to your vehicle and its load limits,
and can contribute to the important road hold­
ing, driving characteristics, and safety of the
vehicle. The table(¢
page 193) lists specifica­
tions of the tires approved for the Audi mod­
els covered by your Owner's Literature .
The tire pressure label located on driver's side
B-pillar (
¢ page 193, fig. 151) lists the speci­
f ications of the original equipment tires in­
stalled on your vehicle at the time it was man­
ufactured.
Federal law requires tire manufacturers to
place standardized information on the side­
wall of all tires¢
fig. 153. This information
identifies and describes the fundamental
characteristics, the quality grade of the tire
and also provides a tire identification number for
safety standard certification and in case of
a recall.
Tire specifications
Knowledge of tire specifications makes it eas­
ier to choose the correct tires. Radial tires
have the tire specifications marked on the
sidewall, for example:
P235 / 35 R 18 91 Y
This contains the following information:
P Indicates the tire is for passenger cars
235 Nominal tire width in mm of the tire
from sidewall edge to sidewall edge. In general, the larger the number, the wider
the tire
35 Height/width ratio in percent (aspect ra-
tio)
R Tire construction: Radial
18 Rim diameter code (in inches)
91 Load rating code
Y Speed rating letter code
XL (or "xl", "EXTRA LOAD", or "RF") indicates
that the tire is a"Reinforced" or an "Extra
Load" tire
M+S (or "M/S") Indicates that the tire has
some mud and snow capability
The tires could also have the information of
direction of rotation¢
page 189.
Tire manufacturing date
The manufacturing date is also indicated on
the tire sidewall (possibly only on the
inner
side of the wheel):
"DOT ... 2210 ... " means, for example, that
the tire was produced in the 22nd week of 2010.
Speed rating (letter code)
The speed rating letter code on the wheels in­
dicates the maximum permissible road speeds
¢ .&. in Winter tires on page 204.
P up to 93 mph (150 km/h)
Q up to 99 mph (158 km/h)
R up to 106 mph (170 km/h)
S up to 110 mph (180 km/h)

202 Tir es and whee ls
The installation of replacement tires with
steel cord body plies in the tire sidewall may
cause ma lfunction of the tire pressure moni­
toring system, and is not recommended (cord material information in molded on the tire
sidewall) .
Always check your tire pressure monitoring
system indicator after replacing one or more
tires on your vehicle. If the tire pressure moni­
toring system indicator flashes, or is on, your
system is not work ing properly.
A WARNING
- Us ing incorrect or unmatched tires and/
or wheels or improper t ire and whee l
combinations can lead to loss of contro l,
co llision and serious persona l injury.
- Always use tires, rims and wheel bo lts
that meet the specifications of orig inal
factory-installed t ires or other combina ­
tions that have been specifically ap­
proved by the vehicle manufacturer .
- Tires age even if they are not being used and can fail su ddenly, especially at high
speeds. Tires that are more than 6 years
o ld can only be used in an emergency
and then with special care and at lower
speeds .
- Never mount used tires on your vehicle if
you a re 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.
- Only the wheel/tire s izes spec ified by the
manufactu rer may be used on veh icles
with all-wheel dr ive.
- Never drive faste r than the maxim um
speed for which the tires on your veh icle
are ra ted because tires that are driven
f aster than their rated speed can fail
sudden ly .
- Overloading ti res cause heat build-up,
sudden tire failure, incl uding a blowout
and sudden deflation and loss of control. -
Temperature grades apply to tires that
are properly inflated and not over or un­
derinflated.
- For technical reasons it is not always
possible to use wheels from other vehi­
cles -in some cases not even wheels
from the same veh icle model.
- Do not use run-flat tires on your vehicle.
Using run-flat t ires can lead to veh icle
damage or crashes .
@ Note
- For technical reasons, it is not generally
possible to use the wheel rims from oth­
er veh icles . Th is can hold true for wheels
of the same vehicle type .
- If you should put different wheels and
tires on your veh icle (e.g . winter wheels
and tires), you must be certain that the
wheels and tires are compatible with the tire pressure monitoring system. Other ­
w ise the system will register a malfunc­
tion and a fau lt message w ill be dis­
played. For more information, contact
your authorized Audi dealer.
(D Note
- When installing new tires, be care ful not
to damage the va lves or tire pressure
monitoring system sensors.
- Never drive without the valve stem cap.
The va lves cou ld get damaged.
- If the sensors must be replaced, then
the valve must also be replaced at the
same time .
@ For the sake of the environment
Dispose of o ld tires in accordance with the
l ocal requirements .
@ Tips
Tires with the iden tificatio n "RO l" have
been specially matched with your A udi. We
r ecommend using on ly these tires because
they meet the highest standards regarding
safety and driving characteristics when used correctly . Your authorized Audi R8

dealer will g ladly provide you with more
information.
Uniform tire quality grading
- Tread wear
- Traction AA A B C
- T emperature ABC
Quality grades can be found where applicable
on the ti re side wa ll between tread shoulde r
and maximum section wid th ¢ page 199,
fig. 153 .
For example : Tread wear 200, Tract ion AA ,
Tempe ratu re A .
All passenger car tires must conform to Feder­
al Safety Requi rements in addition to these
grad es.
Tread we ar
The tread wear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a spec ified
government test course.
For example, a t ire graded 150 would wear
one and one half (1 1/2) t imes as well on the
government course as a tire graded 100 .
The relat ive perform a nee of ti res depends
upon the actual conditions of their use, how­
ever, and may depart sign ificantly from the
norm due to var iat ions in dr iv ing habits, serv­
i ce practices and differences in road cha racter­
i stics and climate.
Traction
The traction grades, from highest to lowest,
are AA, A, Band
C. Those grades represent the
tire's abil ity to stop on wet pavement as
measured unde r controlled cond it ions on
spec ified gove rnment test su rfaces of asphalt
and concrete . A tire ma rked C may h ave poor
tr action perfo rm ance¢ &..
Temp erature
The temperature grades are A (the h ighest),
B, and C, repr ese nting the t ire's resistance to
the gene rat io n of heat and i ts ab ility to dissi-
Tire s an d wheel s 203
pate heat when tested under controlled condi ­
tions on a specified indoor laboratory test
whee l.
Sustaine d high temperature can cause the
mater ia l of the tire to degenerate and red uce
tire life, and excessive tempe rat ure ca n lead
to s udden tire failure ¢ &. .
T he gr ade C correspon ds to a level of pe rform ­
ance which all passenger car tires must meet u nder the Federal Motor Vehicle Safety Stand­
ard No . 109 . Grades Band A represent higher
l evels of performance on the laboratory test
whee l than the minimum requ ired by law.
A WARNING
The traction grade assigned to th is tire is
based on straight-ahead braking traction
tests, and does not include accele rat ion,
cor neri ng, hy droplaning or peak t ra ction
ch aracte rist ics.
A WARNING
T he temperature grade for this tire is es­
tablished for a tire that is properly inf lated
and not overloaded . Excess ive speed, un­
derinflation, or excessive loading, e it h er
separately or in combinat ion, can ca use
heat bui ldup and possible tire failure.
Winter tires
Winter tires con improve vehicle handling on
snow and ice. At temperatures below 45 °F (7 °C) we recommend changing to winter
tires.
In some heavy snow areas, local governments
may require true w inter or "snow" tires, those
with very deeply cut tread. T hese tires should
o nl y be used in pairs and be installed o n all
fou r wheels . Make sure you purchase snow
ti res that a re the same si ze and construction
type as the othe r ti res on you r vehicle.
If your vehicle is equipped w ith all-whee l
drive*, th is w ill improve traction during winter
driv ing, even with the s tanda rd tires . Howev-
er, we stro ngly recommend that you always ..,.
•
•

204 Tir es and whe els
eq uip all four wheels on your vehicle with cor ­
rectly fitted winter tires or all-season tires,
when winter road conditions are expected. This a lso improves the vehicle's braking per­
formance and reduces stopping distances.
Summer tires provide less grip on ice and
snow.
W inter t ires (snow t ires) must always be fitted
on all four wheels.
Compat ible tire pressure mon itor ing sensors
must be installed on all fou r winter tires for
the tire pressure monitoring system to func­
tion proper ly ~
page 201 .
Ask your authorized Aud i dea ler or qualified
wo rkshop for permitted
winter tir e sizes. Use
only radia l winter tires .
W inter t ires lose the ir effectiveness when the
tread is worn down to a depth of 0.157 inch
(4 mm) .
Only drive with winter tires under winter con­
d itions . Summer tires handle better when
there is no snow or ice on the roads and the
temperature is above 45 °F (7 °C).
Please always remember that w inte r tires may
have a lower speed rating than the t ires origi­
na lly installed on your veh icle at the t ime i t
was manufactured. Please see
r:!> page 200 ,
Speed roting (letter code) for a list ing of the
speed rating letter codes and the maximum
speed at which the tires can be driven.
The speed ra ting letter code
(~ page 191) is
on the s ide wall of the tire
r::!> poge 199.
A WARNING
Winter tires have maximum speed limits
that may be lower than your vehicle's max­
im um speed . Always know the maxim um
speed before driving off. Never drive faster
than the speed permitted for your specific
w inte r tires . This will cause damage to the
tires leading to an accident and serious
personal in ju ry to you and your passen­
gers.
A WARNING
Driving faster than the maximum speed
for which the winter tires on your veh icle
were designed can cause t ire failure in­
cluding a blowout and sudden deflation,
l oss of cont ro l, crashes and ser ious per­
sonal injuries. Have wo rn o r damaged ti res
r eplaced immediately.
- W inte r ti res have maxim um speed rating
that may be lower than your vehicle 's
maximum speed.
- Never drive fas ter than the speed for
which the win ter or othe r ti res installed
on yo ur vehicle are rated.
A WARNING ~
A lways ad just your driving to the road and
traffic condit ions. Never let the good ac­
celeration of the winter tires and all-wheel
drive tempt you into taking extra risks. Al­
ways remember:
- When braking, an all-wheel drive veh icle
handles in the same way as a front drive
veh icle.
- Drive carefully and reduce your speed on
icy and slippery roads, even w inter t ires
cannot help under black ice conditions .
~ For the sake of the environment
Use summer tires when weather condi­
tions permit. They are qu ieter, do not wear
as quickly and reduce fuel consumpt ion.
Snow chains
-
S now cha ins may be fitted only to the rea r
whee ls, and o nly to certa in tire sizes . Ask your
autho rized Aud i dea le r o n whi ch tire sizes
snow c hains ca n be used.
T he snow chains must have low-profile links
and must not be t hicker than 0 .53 inch
(13 .5 mm), in cl ud ing the lock.
Remove wheel center covers before putt ing
snow c ha ins on your vehicle~@ . For safety
reasons cover caps must then be f itted over

206 Tires and wheels
conditions. Ask your authorized Audi dea ler
for more details.
The low aspect ratio of these tires is indicated
by a numeral of
55 or less in the tire's size
designation. The numeral represents the ratio
of the tire's sidewall height in relation to its
tread width expressed in percentage. Conven­
tional tires have a height/width ratio of 60 or
more.
The performance of low-aspect -ratio tires is
particularly sensitive to improper inflation
pressure. It is therefore important that low
aspect ratio tires are inflated to the specified pressure and that the inflation pressure is reg ­
ularly checked and mainta ined. Tire pressures
should be checked at least once a month and
a lways before a long t rip
~ page 195, Check­
ing tire pressure.
What you can do to avoid tire and rim
damage
L ow aspect ratio tires can be damaged more
eas ily by impact with potholes, curbs, gullies
or ridge5 on the road, particu larly if the tire i5
underinflated.
I n order to minimize the occurrence of impact
damage to the tires of your vehicle, we recom­
mend that you observe the following precau­
tions:
- Always maintain recommended inflation
pressures. Check your tire pressure every
2.000 miles (3.000 km) and add air if neces­
sary.
- Drive carefully 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 nearest
authori zed Audi dealer. Rep lace a damaged
tire as soon as possible.
- Inspect your tires 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 failure . If you believe that a tire
may have been damaged, replace the
tire as soon as possib le.
- These tires may wear more quickly than oth­
ers.
- Please also remember that, while these tires
deliver responsive handling, they may ride
less comfortably and make more noise than
other choices .
Reduced performance in winter/cold
season conditions
All tires are designed for certain purposes.
The low aspect ratio, ultra high performance
t ir es originally installed on your vehicle are in­
tended for maximum dry and wet road per­
formance and handling . They are not suitable
for cold, snowy or icy weather conditions . If
you drive under those c ircumstances, you
should equ ip your vehicle w ith winter t ires,
which offer better traction under those condi­
tions . We suggest yo u use the recommended
snow tires specified for your vehicle, or their
equivalent.
Refer to~
poge 203 for more detailed infor­
mation regarding winter tires.
Ti re pressure
monitoring system
General notes
E ach tire, including the spare (if provided),
shou ld be checked monthly when cold and in­
flated to the inflat ion pressure recommended
by the vehic le manufacturer on the vehicle
placard or tire inflation pressure label (If your
vehicle has tires of a different si ze than the
size indicated on the vehicle placard or tire in­
flat ion pressure label, you should determine
the proper t ire in flation pressure for those
t ir es .) .
As an added safety feature, your vehicle has been equipped with a tire pressure monitoring
system (TPMS) that illum inates a low tire
pressure telltale when one or more of your
tires is significantly under-inflated. According­
ly, when the low tire pressure telltale illumi­
nates, you shou ld stop and check you r tires as
Ill>-

230 Index
A
A/C operation ................. .... .. 75
ABS
refer to Anti-Lock Brake System . .. .. . 150
A cces sories . . . . . . . . . . . . . . . . . . . . . . . . 211
Active rollover protection system . .. ... 107
Retracting rollover protection ... .. ... 107
Adding
Eng ine coolant ... ..... ... .. .. .. .. .
183
Eng ine oil .. .. . ... ... .. .. .. .. .. .. . 180
Addit ional accessories .. .... .... .. .. . 211
Additives .................. ... .... . 180
Adjustable steering column ...... .. .... 77
Adju sting front sea ts ....... .. .. .. .. . .
66
Advanced Airbag System
Children ... ............... .. .... .
139
Compon ents ................ ..... . 124
Front ai rbags . . . . . . . . . . . . . . . . . . . . . 122
How the component s work togethe r .. 125
Mon ito ring . .... .. ... .. .. .. .. .. .. . 128
Weight-sen sing mat .. .... .. .. .. .. . 139
Airbag system . . . . . . . . . . . . . . . . . 117, 136
Car e ... .. .. ................ ..... . 130
Child restraints .. .. ... ...... .. .. .. .
140
Components (fron t air bags) .. .. .... . 124
Danger of fitting a child safety seat on
the front passenger seat . . . . . . . . . . . .
119
Disposal ............. ........ .... 130
Front airbags ... .. ... .... .. .. .. .. . 121
H ow do the front airbags work? . .... . 126
How many airbags does my vehicle
have? .................... .. .... .
124
Important safety instructions on the
knee airbag system ....... .. .. .. .. .
134
Important things to know . . . . . . . . . . . 117
Indica tor ligh t .... .... ..... .. .. .. . 128
Knee airbags ... ... .... ..... .. .. .. . 132
Monitoring ................. ... ... 128
PASSENGER AIR BAG OFF light . . . . . . . 128
Service .. ...... .. ... .... .. .. .. .. . 130
Side airbags ..... .. .. .... .. .. .. .. . 135
Warning/indicator light ..... ... .... .. 17
When must the system be inspected? . 128
Air cond itioning
A/C operation . .... .... ..... .. .. .. .. 75
A ir distribution .... ....... .. .. .. .. ..
74
Air recirculation mode ......... .... .. 75 Automatic mode
.............. .... . 75
Controls . . . . . . . . . . . . . . . . . . . . . . . . . .
72
Defrost ..... .. .. .. .............. .. 75
E conomi cal use .. ....... ..... ..... .
76
Fan .. .... .. .. .. ...... ... .... .... . 74
Rear window defogger . . . . . . . . . . . . . . . 76
Switching on and off .... ......... .. . 74
Temperature ... ............ ........ 73
Air d istribution . . . . . . . . . . . . . . . . . . . . . . 7 4
Air recirculation mode Air condit ioning . ................. .. 75
All-wheel drive .. ............ .......
155
Winter tires . .. .. ... .. ..... ... .... 203
Anti-free ze
refer to Engine cool ant system ... .. .. 181
Anti-Lock Brake System .......... .... 150
Warning/indicator light ............ .. 18
Anti-Slip Regulation System .. .... .... 150
Anti- theft alarm system ... .... ... .... . 43
Anti-theft whee l bolts .............. . 216
Ashtray ........... .... ........... .. 69
ASR
refer to An ti-Slip Regulation System .. 150
Asterisk .... .. .. .. .. ................ . 6
Audi magnetic ride ................. ..
82
Description . . . . . . . . . . . . . . . . . . . . . . . . 82
Wa rning/ind icator light ... .. .. .. .. .. . 15
Aud i Servi ce Repa ir Manuals and Li te ra-
ture ........ ... .. .. ... ....... .... .
209
Automated manua l transmission
ref er to R tronic . ................. .. 85
Automat ic be lt retractor ...... .. ... .. 112
Autom atic car w ash
refer to Washing ........... ....... 16 1
Automatic headlight ................. 55
Automat ic headl ight control ...... .. .. .
62
Automatic headlight s
Defective . . . . . . . . . . . . . . . . . . . . . . . . . 3 5
Auto Safety Hotline ............. ....
105
Average fuel mileage . . . . . . . . . . . . . . . . . 23
Aver age speed . .. .. .. ..... .. .. .. .... . 23
B
Battery ..... ..... .. ............... 184
Cha rging .. .. .. .. ...... .. .. ... .... 186
Checking . . . . . . . . . . . . . . . . . . . . . . . . . 184