
154 Airbag sys te m
Although they are not a soft pillow, they can
cushion the impact and in this way they can he lp to reduce the r isk of injury to the lower
extremities.
A ll of this takes place in the blink of an eye, so
fast that many people don't even realize that
the airbags have deployed. The a irbags also
inflate with a great deal of force and it is im
portant for occupant safety that noth ing
should be in their way when they deploy.
Fu lly inflated airbags in combination with
properly worn safety belts slow down and lim
it the occupant's forward movement and help
to reduce the r isk of injury .
Important safety instructions on the
knee airbag system
Applies to vehicles: with knee airb ags
Airbags are only supplemental restraints . Al
ways wear safety belts correctly and ride in a
proper seating position.
There is a lot that you and your passengers
must know and do to help the safety be lts and
a ir bags to provide supp lemental p rotection .
A WARNING
An inflating knee airbag can cause ser ious
inju ry. Wear ing sa fety belts inco rrec tly and
improper seating posi tions increase the
risk of serious personal injury and death
whenever a veh icle is being used.
- The knee airbag system cannot protect
yo u properly if you are seated too close
to any o f the airbag locations. When ad
just ing their seat positions, it is impor
tant that both the driver and the front
passenger keep their upper bodies and
knees at the following min imum safe
dis tances:
- at least 10 inches (25 cm) between the
chest and the steering wheel/instr u
ment panel.
- at least 4 inches (10 cm) between the
knees and the lower part of the instru
ment panel. -
The risk of personal inj ury increases if
you lean fo rward or to the s ide, or if the
seat is improperly positioned and you are not wearing you r safety belt . The risk in
creases even more should the a irbag de
ploy .
- Always make sure that the knee airbag
can inflate without inte rfe rence. Objects
between you and the airbag can inc rease
the risk of injury in an ac cident by inte r
fering w ith the way the a irbag deploys or
by being p ushed into you as the airbag
deploys.
- Never let anybody, espec ia lly children
or anima ls ride in the footwell in front
of the passenge r seat. If the airbag de
ploys, th is can result in serious or fatal
injur ies.
- Never carry objects of any kind in the
footwell area in front of the dr iver's or
passenger 's seat. Bulky objects (shop
ping bags, for example) can interfere
with or prevent proper deployment of
the a irbag . Small ob jects can be
thrown thro ugh the veh icle if the air
bag deploys and injure you or your pas
sengers.
- Make sure there are no cracks, deep
scratches or other damage in the area of
the instrument panel where the knee air bags are located.
- If ch ildren are incorrectly seated, their
risk of injury increases in a collision
c:::> page 161, Child Safety .

162 Child Safety
-If you must install a rearward facing
child safety seat on the front passenger
seat in exceptional circumstances and
the
PASSENGER AIR BAG OFF light does
not come on and stay on, immediately
install the rearward-facing child safety
seat in a rear seating position and have
the airbag system inspected immediately
by your authorized Audi dealer.
.&, WARNING
If, in exceptional circumstances, you must
install a forward-facing child restraint on
the front passenger's seat:
- Always make sure the forward-facing
seat has been designed and certified by
its manufacturer for use on a front seat
with a passenger front and side airbag.
- Always follow the manufacturer's in
structions provided with the child safety
seat or carrier.
- Always move the passenger seat into its
rearmost position in the seat's fore and
aft adjustment range, as far away from
the airbag as possible before installing
the child restraint. The backrest must be adjusted to an upright position .
- Always make sure that the
PASSENGER
AIR BAG OFF
light comes on and stays
on all the time whenever the ignition is
switched on.
(D Tips
Always replace child restraints that were
installed in a vehicle during a crash. Dam
age to a child restraint that is not visible
could cause it to fail in another collision
situation.
Advanced front airbag system and children
Your vehicle is equipped with a front "Ad
vanced Airbag System" in compliance with
United States Federal Motor Vehicle Safety
Standard (FMVSS) 208 as applicable at the
time your vehicle was manufactured . The
Advanced Airbag system in your vehicle
has been certified to meet the "low-risk" re
quirements for 3- and 6-year old children on
the passenger side and small adults on the driver side. The low risk deployment criteria
are intended to reduce the risk of injury
through interaction with the airbag that can
occur, for example, by being too close to the
steering wheel and instrument panel when
the airbag inflates . In addition, the system
has been certified to comply with the "sup
pression" requirements of the Safety Stand
ard, to turn off the front airbag for infants up
to 12 months who are restrained on the front
passenger seat in child restraints that are list
ed in the Standard.
Even though your vehicle is equipped with an
Advanced Airbag system, all children, espe
cially those 12 years and younger, should al
ways ride in the back seat properly restrained
for their age and size. The airbag on the pas
senger side makes the front seat a potentially
dangerous place for a child to ride . The front
seat is not the safest place for a child in a for
ward-facing child safety seat.
It can be a very
dangerous place for an infant or a larger child
in a rearward-facing seat.
Advanced Airbags and the weight
sensing mat in the front seat
The Advanced Airbag System in your vehicle detects the presence of an infant or child in a
child restraint on the front passenger seat us
ing the weight-sensing mat in the seat cush
ion and the sensor below the safety belt latch
on the front passenger seat that measures the
tension on the safety belt.
The weight-sensing mat measures total
weight of the child and the child safety seat
and a child blanket on the front passenger
seat. The weight on the front passenger seat
is related to the design of the child restraint
and its "footprint", the size and shape of the
bottom of the child restraint as it sits on the
seat. The weight of a child restraint and its "footprint" vary for different kinds of child re -
straints and for the different models of the .,.

180 Intellige nt tec hno logy
Intelligent technology
Notice about data
recorded by veh ic le
control modules
Your vehicle is not equipped with an Event Da
ta Recorder (EDR), installed by some manu
facturers fo r the express purpose of capturing
data for retrieval after an accident or crash
event . EDR's are sometimes called "crash re
corders".
Some state laws restrict the retrieval or down
loading of data stored by EDR's that were in
stalled in a vehicle for the express purpose of
retrieving data after an accident or crash
event without the owner's consent.
A lthough your vehicle is not equipped with an
EDR, it is equipped with a number of electron
ic control modules for various vehicle systems
such as, for example, engine function, emis
sion control, as well as for the airbags and
safety belts.
These electronic control modules also record
vehicle-related data during normal vehicle op
eration for diagnostic and repair purposes.
The recording capacity of the electronic con
trol modules is limited to data (no sound is re
corded) and only a small amount of data is ac
tually recorded over a very limited period of
time and stored when a system fault or other
condition is sensed by a control unit. Some of
the data then stored may relate to vehicle
speed, direction, braking as well as restraint
system use and performance in the event of a
crash or other condition. Stored data can only
be read and downloaded with special equip
ment.
Electronic Stab ilization
Control (ESC)
Description
ESC helps to improve road holding and vehicle
dynamics to help reduce the probability of
skidding and loss of vehicle control. It works
only when the engine is running. ESC detects certain difficult driving situations, including
when the vehicle is beginning to spin (yaw)
out of control and helps you to get the vehicle back under control by selectively braking the
wheels, and/or reducing engine power and
providing steering assistance to help hold the
vehicle on the driver's intended course. The in
dicator light
J.i) in the instrument cluster
blinks when ESC is taking action to help you
control the vehicle.
ESC has limitations.
It is important to remem
ber that ESC cannot overcome the laws of
physics. It will not always be able to help out
under a ll cond itions you may come up against.
For example, ESC may not always be able to
help you master situations where there is a
sudden change in the coefficient of friction of
the road surface. When there is a section of dry road that is suddenly covered with water,
slush or snow, ESC cannot perform the same
way it would on the dry surface . If the vehicle
hydroplanes (rides on a cushion of water in
stead of the road surface), ESC will not be
able to help you steer the vehicle because con
tact with the pavement has been interrupted
and the vehicle cannot be braked or steered.
During fast cornering, particularly on winding
roads, ESC cannot always deal as effectively
with difficult driving situations than at lower
speeds. When towing a trailer, ESC is not able
to help you regain control as it would if you
were not towing a trailer.
Always adjust your speed and driving style to road, traffic and weather conditions. ESC can
not override the vehicle's physical limits, in
crease the available traction, or keep a vehicle
on the road if road departure is a result of
driver inattent ion. Instead, ESC improves the
possibility of keeping the vehicle under con
trol and on the road during extreme maneu
vers by using the driver's steering inputs to
help keep the vehicle going in the intended di
rection . If you are traveling at a speed that
causes you to run off the road before ESC can
provide any assistance, you may not experi
ence the benefits of ESC.

ESC includes and/or works together with the
anti-lock brake system (ABS), brake assist sys
tem, anti -slip regulation (ASR) , e lectronic dif
ferential lock (EDL), dynamic steering* and electronic i nteraxle differential lock* /selective
wheel torque control* . ESC is switched on all
the t ime. I n certain s ituations when you need
less traction, you can switch
off ASR by press
i ng the button~~
page 182, fig. 153 or
~ page 182, fig. 154. Be sure to sw itch ASR
on again when you no longer need less trac
tion.
Anti-lock b ra king s ystem (ABS)
ABS prevents the wheels from locking up
when braking. The vehicle can still be steered
even d uring hard brak ing . Apply ste ady p res
sure to the brake pedal. Do not pump the ped
a l. A pulsing in the brake peda l indicates t hat
the system is he lping you to brake the vehicle.
Brake assist system
The brake assist system can decrease bra king
d istance. It increases braking power when the
d river presses the brake pedal quick ly in emer
gency situations . You must press and hold the
brake peda l until the situation is over. In
veh icles w ith adaptive cru ise contro l*, the
brake assist system is more sensit ive if the
d istance detected to the veh icle ahead is too
small.
Anti- slip regulati on (ASR)
ASR reduces engine power when the drive
wheels begin to spin and adapts the force to
the road condit ions. This makes it eas ier to
start, accelerate and drive up hills.
Elect ronic diffe renti al lo ck (EDL )
The ED L brakes wheels that are spinning and
transfers the drive power to the other drive
wheel or wheels if the vehicle is equipped with
all-wheel drive*. This function is available up
to about 60 mph (100 km/h) .
In extreme cases, EDL automatica lly switches
off to help keep the brake on the braked whee l
from overheating. EDL w ill switch on again au-
Intellig ent technolog y 181
tomat ica lly when conditions have returned to
norma l.
Dynamic steering*
On vehicles with dynam ic steering*, ESC helps
stab il ize the s teer ing in crit ica l sit uat io ns.
Electronic interaxle differential lock* /
selective wheel torque control*
T he electronic i nteraxle differential lock (front
whee l dr ive) or the se lective whee l to rque
control (all-wheel dr ive) opera tes when dr iv
ing thro ugh curves. The front wheel on the in
side of the c urve or both whee ls on the inside
of the curve are braked selectively as needed .
This min imizes sliding in the front wheels and
allows for more precise driving through
cu rves . The applicable system may not acti
vate when dr iv ing in wet or snowy conditions.
A WARNING
- ESC, ABS , ASR, EDL dynam ic steering*
a nd the elect ronic interaxle differential
loc k* /se lective wheel torque control*
cannot overcome the laws of physics .
This is especially important on slippery
or wet roads. If the systems begin acting
to stabilize your veh icle, yo u should im
mediately change your speed to match
the road and traff ic conditions. Do not
let the increased safety provided by
these systems tempt you to take r isks.
Doing so will increase the risk of a loss of
veh icle contro l, col lision and ser ious per
sonal injuries.
- Always adapt your speed to road, traffi c
and wea ther conditions. The risk of los
ing contro l of the vehicle increases when
driving too fast, espec ially through
curves and on slippery or wet roads, and
when dr iv ing too close to vehicles up
ahead. ESC, ABS, the brake ass ist sys
tem, ASR, EDL dynam ic steering* and the
electronic interaxle differentia l lock*/se
lective whee l torque control* cannot p re-
vent co llisions . ..,.
•
•

overhea t red ucin g the e ffec tiveness of
t h e ent ire brake system.
- Failure of one brake circuit will impair
the bra king capability resulting in an in
creased stopp ing distance. Avoid driv ing
the vehicle and have it towed to the near est author ized Audi dealer or qualified
wor kshop .
- Never let the vehicle roll to a stop w ith
the engine shut off.
- If the brake booster is not work ing, the
brake pedal must be pressed considera
bly harder to make up for the lac k of
booster assistance.
Electro-mechanical
power assist, dynamic
steering
The electro-mechanical power assist helps
the driver when steering.
Power steering adapts electronically based on
the vehicle speed.
Indicator light s and messages
• Steering defecti ve! Do not drive vehicle!
If th is ind icator light tu rns on and stays on
and th is message appears, t he power s teeri ng
may have f ailed.
Do
not co ntin u e d riving . See yo ur autho rized
Aud i dea ler o r a qua lifi ed r epai r fac ility for as
sis tance .
':rj Dynam ic steering: Sy stem fault! You can
continue driving
If the indicator light t urns on and the mes
sage appears, the steer ing may be more diffi
cult to move or more sensitive than usual. The
steer ing wheel may also be at an angle whe n
d riving st raight .
Drive s low ly to your au thor ized Audi dealer or
qua lified workshop to have the malfunction
corrected.
'y.ij Dynam ic steering : initializing
Int ellig ent technolog y 185
If this drive r message appea rs and the indica
tor lig ht is f lashing on the instrument panel,
dynamic steer ing * is being rein itia lized. After
starting the engine, the steering wheel will move s light ly. Re- initiali zation might be nec
essary if the steering wheel was moved hard
to the left and right wh ile the vehicle was not
moving . Th e display goes out as soo n as ini ti
ali zation is comple te .
A WARNING
H ave the dy namic s tee ring * system mal
f u nction repa ired as soon as possible by an
authorized Audi dealer or qualified work
shop - risk of acc ident !
(D Tips
- If the . or l;rj indic ator l ight only st ays
on fo r a short time, you may continue
dr iving.
- T he dynamic s teering* s tabilit y systems
are not availab le in the even t of a system
ma lfunction.
- F or ad ditiona l information on dynamic
steering *, refer to ¢page 104 .
-
Driving with your
quattro
Applies to vehicles: with all-wheel drive
With all-wheel drive, all four wheels are driv
en .
General informati on
With a ll-wheel d rive, power is distrib uted to
all four wheels. This happens automatically depending on your driving style and the road
cond it ions at the time. See also¢ page 180 .
A center d ifferential distributes the driving
power variably to the front and rear ax le. It
wor ks together with selective wheel torque
control, wh ich activates when dr iv ing t hrough
curves Qpage 181. With the sport differen
t ia l*, power d istr ibut io n to the rea r wheels is
var iable a nd can be adjusted w ith dr ive se lect
¢ page 10 4.
IJII>
•
•

-Never mount used tires on yo ur vehicle if
yo u 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 d riving, 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 typ ic al in those seasons. Aud i recom
mends using w inter t ires du ring the win-
Glossary of tire and loading terminology
Accessory weight
means the comb ined weight (in excess of
those standard items which may be replaced)
of automatic tra nsmission, 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 height to the width of
the tire in percent . Numbers of 55 or lower in
d icate a low sidewall for improved steering re
sponse and better overall handling on dry
pavement .
Bead
means the pa rt 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.
Tire s an d wheel s 223
ter months . Low temperatu res signifi
cantly decrease the elastic ity of summer
t ires, which affects traction and braking
ability. If summer tires are used in very
co ld temperatures, cracks can form on
the tread bars, res ulting in permanent
ti re damage that can cause loud drivi ng
noise and unbalanced tires. Aud i is not
responsib le for this type of damage.
- Burn ished, polished or chromed rims
must not be used in winter weather. Th e
surfa ce of the rims does not have suffi
c ien t cor rosion pro te cti on for this and
c o ul d be pe rmanen tly damaged by road
salt or similar substances. This damage
is not covered by warranty.
Cold tir e inflation pressure
me ans the t ire press ure re commended by the
vehicle manufacturer fo r a tire o f a des igna ted
size that has not bee n driven for more than a
couple of miles (k ilomete rs) at low speeds in
the three hour pe riod before the tire p ress ure
is measured or adjusted.
Curb weight
means the weight o f a motor vehicle with
standard equipment including the maximum
capacity of fuel, o il, and coolant, air cond i
tion ing and additional weight of optiona l
equipment.
E xtra load tire
means a tire design to operate at higher loads
and at higher inflation pressures than the cor
responding standard tire. Extra load tires may
be identified as "XL", "xl", "EXTRA LOAD", or
"RF" on the sidewall.
Gross Axle Weight Rating ("GAWR")
means the load-carrying capacity of a single
axle system, measured at the tire-ground in-
ter~ces .
~
•
•

232 Tires and wheels
to determine how this reduces the available cargo
and luggage load capacity of
your vehicle.
.,.Check the tire sidewall
(¢ page 233, fig. 172) to de
termine the designated load rating for a specific tire.
Tire service life
The service life of tires depends on a lot of
different things including proper installation
and balancing, correct tire pressure and driv·
ing style.
Fig. 170 Tire tread: tread wear indicators (TWI)
_____ ___,.J)
Fig. 171 Rotating tires for more even wear
Tread Wear Indicator (TWI)
The original tires on your vehicle have
1/16 inch (1.6 mm) high "wear indicators"
c.> fig. 170 running across the tread. Depend·
ing on the make , there will be six to eight of
them evenly placed around the tire. M ar ks on
the tire sidewall (for example "TWI" or other
symbols) indicate the positions of the tread
wear indicators. Worn tires must be replaced. Different
figures may apply in other countries
¢& .
Tire pressure
Incorrect tire pressure causes premature wear
and can cause sudden tire blow-out. For this
reason, tire pressure must be checked at least
once a month
¢ page 228.
Driving style
Driving fast around curves, heavy acceleration
and hard braking increase tire wear .
Rotating tires for more even wear
For all four tires on your vehicle to have the
same service life, we recommend that the
front and rear tires are rotated according to
the tire manufacturer's suggested tire rota
tion intervals. Please remember the follow
ing :
- Tire rotation intervals may differ from the
vehicle service intervals outlined in your
Maintenance and Warranty Booklet .
- The longer one tire is used in one location
on the vehicle, the more it wears at certain
points; therefore, we recommend that you
follow the tire manufacturer's suggested
tire rotation intervals.
- Vehicles with front-wheel drive experience
more tread wear on the front wheels com
pa red to all wheel drive (quattro).
- Please rotate tires as shown¢
fig. 171.
- Extra care must be taken when rotating di-
rection-specific tires ¢
page 249.
Wheel balancing
The wheels on new vehicles are balanced .
However, various situations during everyday
driving can cause them to become unbal
anced, resulting in vibrations you can usually
feel through the steering wheel.
Unbalanced wheels must be rebalanced to
avoid excessive wear on steering, suspension
and tires. A wheel must also be rebalanced
when a new tire is installed. .,.

A
Accessories ..... ... ...... ... .. .. ... 266
AC (automatic climate control) ... .. .. .. 68
adaptive cruise control Vehicles with manual transmission .. .. 92
Adapt ive cr uise control ...... .. .. .. .. .. 90
C leaning the sensor ........ ... .. .. . 197
Messages . . . . . . . . . . . . . . . . . . . . . . . . . 98
Request for driver intervention . . . . . . . . 96
Setting the driving program .. .. .. .. .. 95
Adapt ive dampers .......... .. .. .. .. . 104
Adapt ive light ................ ... ... . 43
Adaptive Lig ht (defective) .... ... .. .. .. 22
Adding Eng ine coolant ........... .. .. .. ... 214
E ng ine oi l .. ... .. ....... ... .. .. ... 211
Windshield washer fluid ... .. .. .. .. . 220
Addit ional accessories
Addit ives 266
Engine oil .. ............. .... .. .. . 211
Adjustab le steering column . ... .. .. .. .. 71
Adjusting Air dist ribution (automatic climate con -
trol) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
I nstrument illum inat ion . .. .. .. .. .. .. 46
Steering column .. ..... ... .. .. .. .. .. 71
Temperature (automatic climate control) 69
A irbag
War ning/ indicator lights . .. .. .. .. .. .. 20
Airbag system . . . . . . . . . . . . . . . . . 137, 156
Advanced Airbag System ....... ... .. 141
Advanced Airbag System components . 144
Care . .. ... . .... ... ..... ..... .. ... 150
Ch ildren . .. ............. .... .. .. . 16 2
C hi ld restraints ........... .. .. .. ... 163
Components (front airbags) . ... .. .. . 144
Danger of fitting a child safety seat on
the front passenger seat . . . . . . . . . . . . 138
Disposal . .. .. ........... .. .. .. ... 150
Front airbags . . . . . . . . . . . . . . . . 141, 142
H ow do the front airbags work? . . . . . . 146
H ow many airbags does my vehicle
have? ... ... ............. ...... .. 144
H ow the Advanced Airbag System com-
po nents work together .... .. .. .. .. . 145
I mportant safety ins tructions on the
knee airbag system .... ... .. .. .. .. . 154
Inde x 269
Important things to know .... ... .. .. 137
Indicator light ..... . ... ...... ... .. 147
Knee a irbags ... .. .. . .. ... .... ... .. 152
Monitoring .. .. .. ................. 147
PASSENGER AIR BAG OFF light ..... .. 148
Repairs ......... .. ............... lSO
Safety instructions .. . .. .. .. ... ... .. 149
S ide a irbags ..... .. ..... .......... 155
S ide cur tain airbags . ........... .... 15 7
Weigh t-sensing mat ........... .. .. 162
When must the system be inspected? 147
Alcantara Cleaning ........ .. ............... 199
all-wheel drive
All wheel d rive 185
Winter tires ... .... . ... ...... ... .. 237
Alternato r
refer to Generator . . . . . . . . . . . . . . . . . . 17
Anti-free ze
refer to Eng ine coolant system ..... .. 213
Anti- lock braking system . ..... ... .. .. 180
Warning/indicator lights . . . . . . . . . 18 , 19
Anti-slip regu lation .... ......... .. .. 180
Warning/ind icator lights ........ .. .. . 18
Anti-theft a larm warning system ... .. .. . 32
Anti-theft systems Electronic immob ilizer .. ..... ... .. .. . 38
A rm rest .... .. .. .. .. . ............... 56
Ashtray ...... .. .. .. . ............... S8
Aste risk
What does it mean when something is marked w ith an aster isk? . . . . . . . . . . . . . . 6
A udi braking gu ard
refer to b ra ki ng g uard . ............. . 90
Audi drive select ... .. ............... 104
Adaptive dampers .. .......... .... . 104
Desc ription .. .. .. ................. 104
Dynam ic steer ing . .... ......... .... 10 4
Set ting the dr iv ing mode ........ .. .. 105
Spo rt differential .... .. ..... ... .. .. 104
Audi Se rv ice Repair Manuals and Litera-
tu re ..... .. .. .. .. .. . .. .......... .. 26 4
AUTO Automat ic climate control . . . . . . . . . . . . 69
Automat ic headlights ............. .. 43
Auto Lock . ... .... .. . .. .. ..... ... .. . 32
Automat ic be lt ret ractor ......... .. .. 132
•
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