steering AUDI A3 CABRIOLET 2016 Service Manual

<( co ..... N
" N ..... 0 r--. > 00
-An improper ly installed ch ild restraint can
interfere with the airbag as it deploys and
seriously injure or even kill the child -even
with an Advanced Airbag System.
- Always carefu lly follow the manufacturer 's
instructions provided w ith the child seat or
carrier .
- Always make sure that there is nothing on
the front passenger seat that w ill cause the
capacit ive passenger detection system in
the seat to signa l to the Airbag System that
the seat is occupied by a person when it is
not, or to signa l tha t it is occ upied by some ­
one who is heavier than the person actua lly
sitting on the seat . The presence of addi ­
tional objects could cause the passenger
front airbag to be turned on when it shou ld
be off, or could cause the airbag to work in a
way that is different from the way it would have worked without the object on the seat .
Front airbags
Description of front airbags
The airbag system can provide supplemental
protection to properly restrained front seat occu­
pants.
Fig. 137 Location of driver ai rbag: in steer ing wheel
Airb ag sys tem
Fig. 138 Location of front passenger's airbag: in the in­
st rument pane l
Your vehicle is equipped with an "Advanced Air­
bag System" in compliance with United States
Federal Motor Vehicle Safety Standard
(FMVSS) 208, as well as Canada Motor Veh icle
Safety Standard (CMVSS) 208 as applicable at
the time your veh icle was manufactured. The
safe ty belts fo r the seats have "pretensioners"
that help to take slack out of the bel t system.
T he pretensioners are also activated by the e lec ­
tronic control unit for the airbag system .
The front safety belts also have load limiters to
help reduce the fo rces applied to the body in a
c rash .
The airbag for the driver is in the steering wheel
hub
r:::> fig. 137 a nd the airbag for the front pas­
senger is in the instrument pane l
~fig. 138. The
general lo cation of the airbags is marked "A IR­
BAG".
There is a lot you need to know about the airbags i n your vehicle. We urge you to read the deta iled
information about airbags, safety be lts and c hild
safety in this and the other chapters that make
u p the owner's literatu re . Please be sure to heed
the WARNINGS -they are extremely important
for your safety and the safety of your passengers, especially infants and small children.
A WARNING
Never rely on airbags alone for protect ion.
- Even when they deploy, airbags provide only
supplemental protection.
-Airbag work most effectively when used
with properly worn safety be lts .
147

Airbag system
-Therefore, always wear your safety belts and
make sure that everybody in your vehicle is
properly restrained.
- Always hold the steering wheel with both
hands on the outside of the steering wheel
rim at the 9:00 o 'clock and 3 :00 o'clock po­
sitions to help reduce the risk of personal in ­
jury if the driver's airbag inflates .
- Never hold the steering wheel at the 12
o'clock position or with your hands any­
where inside the steering wheel or on the steering wheel hub. Holding the steering
wheel the wrong way increases the risk of
severe injury to the arms, hands, and head if
the driver airbag deploys.
A WARNING
Objects between you and the airbag will in­
crease the risk of injury in a crash by interfer­
ing with the way the airbag unfolds and/or by
being pushed into you as the airbag inflates.
- Always make sure nothing is in the front air-
-
bag deployment zone that could be struck
by the airbag when it inflates.
- Objects in the zone of a deploying airbag
can become projectiles when the airbag de­
ploys and cause serious personal injury.
- Never hold things in your hands or on your lap when the vehicle is in use .
- Never place accessories or other objects
(such as cup holders, telephone brackets,
note pads, navigation systems, or things
that are large, heavy, or bulky) on the doors;
never attach then to the doors or the wind­
shield; never place them over or near or at­
tach them to the area marked ,.AIRBAG" on
the steering wheel, instrument panel or the
seat backrests; never place them between
these areas and you or any other person in
the vehicle.
- Never attach objects to the windshield
above the passenger front airbag, such as
accessory GPS navigation units or music
players. Such objects could cause serious in­
jury in a collision, especially when the air­ bags inflate .
148
-Never recline the front passenger seat to
transport objects. Items can also move into
the deployment area of the side airbags or
the front airbag during breaking or in a sud­
den maneuver . Objects near the airbags can
fly dangerously through the passenger com­
partment and cause injury, particularly
when the seat is reclined and the airbags in­
flate.
A WARNING
A person on the front passenger seat, espe­
cially infants and small children, will receive
serious injuries and can even be killed by be­ ing too close to the airbag when it inflates .
- Although the Advanced Airbag System in
-
your vehicle is designed to turn off the front
passenger airbag if an infant or a small child
is on the front passenger seat, nobody can
absolutely guarantee that deployment un­
der these special conditions is impossible in
all conceivable situations that may happen
during the useful life of your vehicle.
- The Advanced Airbag System can deploy in
accordance with the .,low risk" option for 3-
and 6-year-old children under the U.S . Fed­
eral Standard if a child with electrical capac­
itance greater than the combined capaci­
tance of a typical one-year old infant re­
strained in one of the forward facing or rear­
ward-facing child seats with which your ve­
hicle was certified is on the front passenger
seat and the other conditions for airbag de­
ployment are met.
- Accident statistics have shown that children
are generally safer in the rear seat area than
in the front seating position.
- For their own safety, all children, especially
12 years and younger, should always ride in
the back properly restrained for their age and size.
Advanced front airbag system
Your vehicle is equipped with a front Advanced
Airbag System in compliance with United States
Federal Motor Vehicle Safety Standard 208, as
well as Canada Motor Vehicle Safety Standard ..,.

<( co .... N ,.__
N .... 0 ,.__
> co
(CMVSS) 208 as applicable at the time your vehi­
cle was manufactured.
The front Advanced Airbag System supp lements
the safety belts to prov ide additional pro te ction
for the driver's and front passenger 's heads and
upper bodies in frontal crashes . The airbags in­
flate only in fronta l impacts when the veh icle de­
celerat ion is high enough.
The front Advanced Airbag System for the front
seat occupants is not a substitute for your safety be lts. Rather, it is part of the overa ll occupant re ­
stra int system in your vehicle. A lways remember
that the airbag system can only help to protect
you, if you are sitting upr ight, wear ing your safe­
ty belt and wear ing it properly. This is why you
and your passengers must always be properly re­
stra ined, not jus t because the law requ ires yo u to
be.
The Advanced Airbag System in your ve hicle has
been ce rtified to meet the "low risk" requi re­
men ts for 3 and 6 yea r-o ld children o n the pas­
senger side and very sma ll adul ts on the drive r
side . The low r isk dep loymen t cr iteria are inten d­
ed to help reduce the risk of injury through inter­
action with the front airbag that can occur, for
examp le, by being too close to the steering wheel
and instrument pane l when the airbag inflates .
I n addition, the system has been certified to
comp ly with the "supp ression" requirements of
the Safety Standard, to turn off the front a irbag
for infants 12 months old and younger who are
restrained on the front passenger seat in child re­
stra ints that are listed in the Standard
c::> page 167, Child restraints and Advanced front
airbag system.
"Suppress ion" requ ires the front a irbag on the
passenger side to be turned off if:
- a ch ild up to about one year of age is restrained
on the front passenger seat in one of the rear­
facing or forward-fac ing infant restra ints listed
in Federal Motor Vehicle Safety Standard 208
with wh ic h the Advanced Ai rbag System in your
vehicle was ce rt ified. For a listi ng of the ch ild
restra ints tha t were used to certify your veh i­
cl e's compl iance wi th the US Safe ty St andard
c::> page 167,
Airb ag sys tem
-When a pe rson is detected on the front passen ­
ger seat that has an elect rical capacitance that
is more than the total e lectr ica l capacitance of
a child that is about
1 year o ld restrained in one
of the rear-fac ing or forward-facing infant re­
straints (listed in Federa l Motor Vehicle Safety
Standard 208 with which the Advanced Airbag
System in you r vehicle was cert ified), t he front
ai rbag on the passenger side may or may no t
dep loy.
T he
PASSENGER AIR BAG OFF lig ht comes o n
whe n the elect ronic control unit detects a tota l
elect rical capacitance on the front passe nger sea t
t h at re quires the front airbag to be turned off. If
t h e
PASSENGER AIR BAG OFF ligh t does not
come on, the front airbag on the passenger side
has not been turned off by the contro l unit and
can deploy if the contro l unit senses an impact
that meets the cond itions stored in its memory.
If the total e lectr ica l capacitance registered on
the front passenger seat is more than that of a
typ ica l 1 year -old, b ut less than the weight of a
small adult, the front a irbag on the passenger
s ide may deploy (the
PASSENGER AIR BAG OF F
light does not come on) .
For e xample , the airbag may deploy if :
-a small ch ild that is heav ier than a typ ica l 1
yea r-old child is on the front passenger seat
(regard less of whether the child is in one of the
child seats listed
c::> page 167),
-a child who has outgrown c hild restraints is on
the front passenger seat .
If the front passenge r a irbag is t urned off, the
PASSENGER AIR BAG OFF light in the center of
the instr ument pane l will come on and stay on .
If the front passenge r a ir bag deploys, the Feder ­
al S tanda rd requi res t he ai rbag to meet the " low
risk" deployment criteria to he lp red uce the r isk
of i njury through interaction with the airbag .
" Low risk" deployment occurs in those crashes
that take p lace at lower decelerations as defined
in the electronic contro l unit ¢
page 155.
Alway s remember : Even though yo ur vehicle is
equipped with Advanced Airbags, the safest place
for children is properly restrained on the back ..,.
149

<( co .... N ,.__
N .... 0 ,.__
> co
switched on and turns the airbag indicator light
on when a malfunction in the one of the system
components is detected
c::> page 155. Because
the front passenger seat contains important
parts of the Advanced Airbag System, you must
take care to prevent it from being damaged .
Damage to the seat may prevent the Advanced
Airbag System for the front passenger seat from
doing its job in a crash.
The front Advanced Airbag System consists
of the following:
-Crash sensors in the front of the vehicle that
measure vehicle acceleration/ deceleration to
provide information to the Advanced Airbag
System about the severity of the crash.
- An electronic control unit, with integrated
crash sensors for front and side impacts. The
control unit "decides" whether to fire the front
airbags based on the information received from
the crash sensors. The control unit also "de­
cides" whether the safety belt pretensioners
should be activated .
- An Advanced Airbag with gas generator for the
driver inside the steering wheel hub.
- An Advanced Airbag with gas generator inside
the instrument panel for the front passenger.
- A capacitive passenger detection system under­
neath the front passenger seat cover. This sys­
tem measures the electrical capacitance of the person in the seat. The information registered
is sent continuously to the electronic control
unit to regulate deployment of the front Ad­
vanced Airbag on the passenger side .
- An airbag monitoring system and indicator
light in the instrument cluster
c::> page 155 .
-A sensor in each front seat registers the dis­
tance between the respective seat and the
steering wheel or instrument panel. The infor­
mation registered is sent continuously to the
electronic control unit to regulate deployment
of the front Adv a need Airbags.
- The
PASSENGER AIR BAG OFF light comes on
and stays on in the center of the instrument
panel
c::> page 188 and tells you when the front
Advanced Airbag on the passenger side has been turned off.
Airbag system
-A sensor in the safety belt latch for the driver
and for the front seat passenger that senses
whether that safety belt is latched or not and
transmits this information to the electronic control unit.
A WARNING ,.__
Damage to the front passenger seat can pre­
vent the front airbag from working properly .
- Improper repair or disassembly of the front
passenger and driver seat will prevent the
Advanced Airbag System from functioning properly.
- Repairs to the front passenger seat must be
performed by qualified and properly trained
workshop personnel.
- Never remove the front passenger or driver
seat from the vehicle .
- Never remove the upholstery from the front
passenger seat.
- Never disassemble or remove parts from the
seat or disconnect wires from it.
- Never carry sharp objects in your pockets or
put them on the seat. The capacitive pas­
senger detection mat in the front passenger
seat will not function properly if it is punc­
tured.
- Never carry things on your lap or carry ob­
jects on the front passenger seat. Such ob­
jects can influence the capacitance regis­
tered by the capacitive passenger detection
system, so that incorrect information is pro­
vided to the airbag control unit.
- Never store items under the front passenger
seat. Parts of the Advanced Airbag System
under the passenger seat could be dam­
aged, preventing them and the airbag sys­
tem from working properly.
- Never place seat covers or replacement up­
holstery that have not been specifically ap­
proved by Audi on the front seats.
- Seat covers can prevent the Advanced Air­
bag System from recognizing child re­
straints or occupants on the front passenger
seat and prevent the side airbag in the seat
backrest from deploying properly .
151

Airbag system
A WARNING
A child in a rearward-facing child seat instal­
led on the front passenger seat will be seri ­
ously injured and can be killed if the front air­
bag inflates - even with an Advanced Airbag
System.
- The inflating airbag will hit the child seat or
infant carrier with great force and will
smash the child seat and child against the backrest, center armrest, door or roof.
- Always install rear-facing child seats on the
rear seat.
- If you must install a rearward facing child
seat on the front passenger seat because of exceptional circumstances and the
PASSEN­
GER AIR BAG OFF
light does not come on
and stay on, immediately install the rear­
facing child seat in a rear seating position
and have the airbag system inspected by
your Audi dealer.
A WARNING
Objects between you and the airbag will in­
crease the risk of injury in a crash by interfer­
ing with the way the airbag unfolds or by be­
ing pushed into you as the airbag inflates .
- Never hold things in your hands or on your
lap when the vehicle is in use .
- Never transport items on or in the area of
the front passenger seat . Objects could
move into the area of the front airbags dur­
ing braking or other sudden maneuvers and
become dangerous projectiles that can
cause serious personal injury if the airbags
inflate.
- Never place or attach accessories or other
objects (such as cup holders, telephone
brackets , large, heavy or bulky objects) on
the doors, over or near the area marked "A IRBAG" on the steering wheel, instru­
ment panel, seat backrests or between
those areas and yourself. These objects
could cause injury in a crash, especially
when the airbags inflate .
- Never recline the front passenger 's seat to
transport objects. Items can also move into
the area of the side airbag or the front air-
154
-
bag during braking or in a sudden maneu­
ver. Objects near the airbags can become
projectiles and cause injury, particularly
when the seat is reclined.
- Never place or transport objects on the
front passenger seat. Objects on the front passenger seat could cause the capacitive
sensor in the seat to signal to airbag system
that the seat is occupied by a person when it
in fact is not , or that the person on the seat
is heavier than he or she actually is. The
change in electric capacitance because of
such objects can cause the passenger front
airbag to be turned on when it should be
off, or can cause the airbag to work in a way
that is different from the way it would have
worked without objects on the seat.
- Always make sure that there is nothing on
the front passenger seat that will cause the
capacitive passenger detection system in
the seat to signal to the Airbag System that
the seat is occupied by a person when it is not, or to signal that it is occupied by some­
one who is heavier than the person actually
sitting on the seat. The presence of an ob­
ject could cause the passenger front airbag to be turned on when it should be off, or
could cause the airbag to work in a way that is different from the way it would have
worked without the object on the seat.
A WARNING
The fine dust created when airbags deploy can
cause breathing problems for people with a history of asthma or other breathing condi­
tions .
- To reduce the risk of breathing problems,
those with asthma or other respiratory con­
ditions should get fresh air right away by
getting out of the vehicle or opening win­
dows or doors .
- If you are in a collision in which airbags de­
ploy , wash your hands and face with mild
soap and water before eating.
- Be careful not to get the dust into your eyes,
or into any cuts or scratches.
- If the residue should get into your eyes,
flush them with water .

Airbag syste m
-If, in exce ptional circumstances, you must
install a forward-faci ng chi ld restraint on
t h e front passenger seat, always m ove the
seat into its rearmost pos ition in the s eat's
f ore an d aft adjustm ent ra nge, as far away
from th e airbag as pos sibl e. Th e backrest
mus t be adjusted to an up right posit ion.
Make s ure that the
PAS SENGER AIR BAG
OFF
light comes on and stays on all the time
whenever the ignition is switched on.
.&_ WARNING
- If the PASSENGER AIR BAG OFF light does
not go out when an ad ult is sitting on the
front passenger seat after taking the steps
described above, make sure the adu lt is
properly seated and restrained at one of the
rear seat ing positions .
- Have the airbag system inspected by your
Audi dealer before transporting anyone on
the front passenger seat .
(D Tips
If the capacitive passenger detection system
determines that the front passenger seat is
empty, the frontal airbag on the passenger
side will be turned off, and the
PASSENGER
AIR BAG OFF
l ight will stay on.
Repair , care and disposal of the airbags
Pa rts of t he a irbag system are installed at many
d ifferent places on your Aud i. Insta lling, remov ­
ing, servic ing o r repa iring a part in an area of the
veh icle can damage a part of an airbag system
and p revent that system from working properly
in a co llision .
There are some important things you have to
know to make sure that the effectiveness of the
system wi ll not be impaired and that discarded
components do not cause injury or poll ute the
env ironment.
.&_ WARNING
Improper care, serv icing and repair proce­
dures can increase the r isk of personal injury
and death by preventing an airbag from de-
158
-
p loying when needed or deploy ing an a irbag
unexpectedly:
- Never cover, obstruct, or change the steer­
ing wheel horn pad or airbag cover or the in­
strument panel or modify them in any way.
- Never attach any objects s uch as c up ho lders
or telephone mountings to the surfaces cov­
ering the a irbag un its .
- For cleaning the horn pad or instrument
panel, use only a soft, dry cloth or one mois­
tened w ith plain water. Solvents or cleaners
could damage the airbag cover or change
the st iffness o r streng th of the material so
that the airbag cannot deploy and p rotect
prope rly.
- Never repair, ad just, or change any parts of
the airbag system.
- All work on the steering wheel, inst rument
panel, front seats or e lectr ica l system ( in­
cluding the installation of a udio eq uipment,
cellular tele phones and C B radios, etc.)
m ust be perfo rmed by a qu alified techn ician
who has the training and specia l equipment
necessary.
- For any work on the airbag system, we
strong ly recommend that you see your au­
thorized A udi dealer or qualified wo rkshop.
- Never modify the front b umper or parts of
the vehicle body.
- Always make sure that the side a irbag can
inflate w ithout interference:
- Never install seat covers or replacement
upholstery ove r the front seatbacks that
have not been specifically approved by
A udi .
- Never use addi tional seat c ushions that
cover the areas where the side airbags in­
flate .
- Damage to the orig inal seat cove rs or to
the seam in the area of the s ide airbag
module mus t always be repaired immedi­
ate ly by an autho riz e d Au di dealer .
- The a irbag sys tem can deploy only once. Af­
ter an airbag has been deployed, i t m ust be
replaced with new replacement parts de­
signed and approved espec ia lly for your
Aud i model version . Replacement of com­
plete airbag systems or airbag components

<( co ..... N
" N ..... 0 r--. > 00
Although they are not a soft pillow, they can
"cushion" the impact and in this way they can
help to reduce the risk of injury to the lower ex­
tremities .
All 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 airbags also inflate
wi th a great deal of force and it is important for
occupant safety that nothing should be in their
way when they deploy .
Fully inflated airbags in comb ination with proper­
ly worn safety belts slow down and limit the o c­
cupant 's forward movement and help to reduce
the r isk of injury .
Important safety instructions on the knee
airbag system
Applies to: veh icles wit h knee airbags
Airbags are only supplemental restraints . Always
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 belts and airbags
to p rovide supplemental protection .
& WARNING
An inflating knee airbag can cause ser ious in­
jury. Wearing safety bel ts incorrec tly and im­
proper sea ting positions increase the r isk o f
serious personal injury and death whenever a
vehicle is being used.
- The knee airbag system cannot protect you
properly if you are seated too close to any of
the airbag locat ions. When adj usting their
seat positions, it is important that both the
driver and the front passenger keep their
upper bod ies a nd knees at the following
min imum safe distances :
- at least 10 inches (25 cm) between the
chest and the steering wheel/instrument
panel.
- at least 4 inc hes (10 cm) between the
knees and the lower part of the instru­
ment panel.
- The risk of persona l injury inc reases if you
lean forward or to the side, or if the seat is
-
Airb ag sys tem
improperly positioned and you are not wear­
ing your safety belt. The risk increases even
more should the airbag deploy.
- Always make sure that the knee a irbag can
inflate w ithout interference . Objects be­
tween you and the airbag can increase the risk of injury in an acc ident by interfering
with the way the airbag deploys or by being
pushed into yo u as the a irbag deploys.
- Never let anybody, especia lly children or
anima ls ride in the footwell in front of the
passenger seat. If the airbag deploys, this
can result in serious or fatal inj uries.
- Never carry objects of any kind in the foot­
well area in front of the driver's or pas­
senger's seat. Bulky objects (shopp ing
bags, fo r example) can interfere with or
prevent proper dep loyment of the airbag .
Small objects ca n be thrown th rough the
vehicle if the airbag deploys and injure you
o r your passengers .
- M ake sure the re are no c rac ks, deep scratch­
es or othe r damage in the area of the inst ru­
men t panel where the knee airbags are lo­
cated.
- If children are incorrec tly se ated, their risk
of injury inc reases in a coll is io n
¢ page 165, Child safety.
Side airbags
Description of side airbags
The airbag system can provide supplemental
pro tec tion to properly restrained occupan ts .
Fig . 14 3 Side a irbag locatio n in t he drive r's seat
The side airbags a re located in the s ides of the
front sea t backrests ¢
fig. 143.
161

<( co .... N r--­N .... 0 r--­> co
rear seating position and have the airbag
system inspected by your authorized Audi
dealer.
- Always buckle the child seat firmly in
place even if a child is not sitting in it. A
loose child seat can fly around during a
sudden stop or in a collision.
- Always read and heed all WARNINGS
whenever using a child restraint in a vehi­
cle
c!;> page 135, Safety belts, c!;> page 143,
Airbag system
and c!;> page 165, Impor­
tant information.
{D) Tips
Always replace child restraints that were in­
stalled in a vehicle dur ing a crash. Damage 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 "Advanced
Ai rbag System" in compliance with United States
F edera l Motor Vehicle Safety Standard ( FMVSS)
208, as well as Canada Motor Vehicle Safety
Standard (CMVSS) 208 as applicable at the time
your veh icle was manufactured.
The Advanced Airbag system in your vehicle has
been certified to meet the "low-risk" require­
ments for 3- and 6-year old children on the pas­
senger 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
sys tem has been certified to comply with the
"suppression" requirements of the Safety Stand ­
ard, to turn off the front airbag for infants up to 12 months who are restrained on the front pas­
senger seat in child restraints that are listed in
the Standard.
Even though your vehicle is equipped with an Ad­
vanced Airbag system, all children, especially those 12 years and younger, should always r ide
in the back seat properly restrained for their age
and size . The airbag on the passenger side makes
Child safety
the front seat a potentia lly dangerous p lace for a
child to ride. The front seat is not the safest place
for a ch ild in a forward-facing child safety seat . It
can be a very dangerous place for an infant or a
larger ch ild in a rearward-facing seat.
The vehicle's Advanced Airbag System has a ca­
pacit ive passenger detection system in the front
passenger seat cushion that can detect the pres­
ence of a baby or a child in a child restraint sys­
tem on this seat.
The capacitive passenger detection system regis­
ters the changes that result in an electrical field
when a child, a child restraint, and a baby blanket are on the front passenger seat . The change in
the measured capacitance due to the presence of
a chi ld, a child restraint, and a baby blanket on
the front passenger seat is related to the child
restraint system resting on the seat. The meas­
ur ed capacitance of a child restra int system var­
ies depending on the type of system and specific
make and mode l.
T he elect rical capacitance of the various types,
makes, and models of child restraints specif ied
by the U.S .National Highway Traffic Safety Ad­
ministration (NHTSA) in the relevant safety
standard are stored in the Advanced Airbag Sys­
tem control unit together with the capacitances
typ ical of infants and a 1-year old child. When a
child restraint is used on the front passenger
seat w it h a typical 1 year-old infant, the Ad­
vanced Airbag System compares the capacitance
measured by the capacitive passenge r detection
system with the data stored in the electronic con­
trol unit.
Child restraints and Advanced front airbag
system
Regardless of the ch ild restraint that you use,
make sure that it has been certified to meet Safe­
ty Standards and has been cert ified by its manu ­
facturer for use w ith an airbag . Always be sure
that the child restraint is properly installed at
one of the rear seating positions. If in exception­
al circumstances you must use it on the front
passenger seat, carefully read all of the informa-
tion on child safety and Advanced Airbags and .,.
167

Tires and wheels
-Have an authorized Audi dealer wear evenly. To rotate wheels, in-
or authorized Audi Service Facili- stall the wheels from the rear
ty check the wheel alignment if axle on the front axle and vice
there is unusual wear. versa. This will allow the tires to
-Have the wheels rebalanced if an have approximately the
same
imbalance is causing noticeable length of service life.
vibration in the steering wheel.
For unidirectional tires, make
If you do not, the tires and other sure the tires are installed accord-
vehicle components could wear ing to the running direction indi-
more quickly. cated on the tire sidewall
Treadwear indicator ¢page 238.
Original equipment tires contain Hidden damage
treadwear indicators in the tread
Damage to tires and rims can of-
pattern, which are bars that are ten occur in locations that are
1/16 in. (1.6 mm) high and are
hidden. Unusual vibrations in the
spaced evenly around the tire per- vehicle or pulling to one side may
pendicular to the running di rec- indicate that there is tire damage.
tion
¢fig. 169. The letters "TWI"
Reduce your speed immediately.
or triangles on the tire sidewall Check the tires for damage. If no
indicate the location of the tread- damage is visible from the out-
wear indicators. side, drive slowly and carefully to
The tires have reached the mini- the nearest authorized Audi deal-
mum tread depth
l) when they er or authorized Audi Service Fa-
have worn down to the tread wear cility to have the vehicle inspect-
indicators . Replace the tires with ed.
new ones¢ &.
& WARNING
-
Wheel rotation Tread that has worn too low or
Rotating the wheels regularly is different tread depths on the
recommended to ensure the tires tires can reduce driving safety.
..
<( a:, ... N .... l) Obey
any applicable regulations in your N ... 0 .... country. > a:,
213

<( co .... N r--­N .... 0 r--­> co
Indicat or lights
IE -Loss of pressure in at least one ti re c::> ,& .
Check the tires and replace or repair if necessary.
Check/correct the pressures of all four tires. Then
store the tire pressures in the MMI
<=:>page 223.
mm (T ire Pressure Monitoring System) Tire
press ure: System malfuncti on!.
Ifm appears
after switching the ignition on or whi le driving
and the
IE indicator light in the instrument clus­
ter blinks for approximately one minute and then
stays on, there is system malfunction . Try to
store the correct tire pressures
c::> page 223 . If
the indicator light does not turn off or turns on
again after a short period of time, drive to an au­
thor ized Audi dealer or authorized Audi Service
Faci lity immediately to have the malfunction cor­
rected.
A WARNING
- If the tire pressure warning light IE in the
instrument cluster turns on, the pressure in
one or more tires is too low . Reduce the ve­
hicle speed immediately and avo id any hard
steering or braking maneuvers. Stop as soon as possible, check the tire and inflate the
t ire to the correct pressure, which is speci­
fied on the tire pressure label on the veh icle
<=:> page 214. Driving w ith a t ire with low
pressure c auses the t ire to overheat and can
result in failure of the tire . Low pressure can
also have a negative effect on the driving
and braking behavior of the vehicle .
- T he driver is responsib le for maintaining the
correct tire pressures . You must check the
tire pressures regularly .
- Under certain conditions (such as a sporty
driv ing style, winter conditions or unpaved
roads), the pressure monitor indicator may
be delayed.
- Do not use run-flat tires on your vehicle . Us­
ing them when not permitted can lead to
vehicle damage or accidents .
(D Tips
-The tire pressure monitoring system can al ­
so stop working when there is an ESC mal­
function.
Tir es and wheel s
- Us ing snow chains may result in a system
ma lfunction.
- The tires with the identification "AO" or
"RO"
c::> page 211 have been matched with
your Audi tire pressure monitoring system .
We recommend that you use these tires.
- The tire pressure monitoring system can on­
ly monitor the tire pressure of the driving
tires. Check the tire pressure of the spare
wheel in the luggage compartment so that if necessary it is ready for use.
Storing tire pressures
App lies to : vehicles wi th Tir e Pressure Mo nito rin g Sys te m in­
dic ator
A change in tire pressur e or a change in tires
must be stored in the syst em .
The tire press ure is stored in the MM I.
.,. Make sure before storing that the t ire pressures
of all four tires meet the specified values and
are adap ted to the load. O therwise the system
could malfunction
c::> page 214.
.. Switch on the ignition.
.,. Select: the I MENU I button> Ca r> Sys tem s*
con trol button > S er vice & control > Tire pre s­
s u re m on itor > Stor e tire pressu re > Yes , sto re
no w.
(D Tips
Do not store the tire pressures if snow chains
are installed. Otherw ise the system could
malfunction.
223