2008 AUDI A4 AVANT lock

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in a crash. These child safety seats must never be used in the front
seat because of the risk of serious injury or death should the airbag
deploy in a
crash:::::, fig . 185.
& WARNING
Not using a child safety seat, using the wrong child safety seat or
improperly installing a child restraint increases the risk of serious
personal injury and death in a crash.
• Never install rear-facing child safety seats or infant carriers on
the front passenger seat -even with an Advanced Airbag System.
A child will be seriously injured and can be killed when the inflating airbag hits the child safety seat or infant carrier with
great force and smashes the child safety seat and child against the
backrest, center arm rest, or
door:::::, page 189, "Child restraints on
the front seat
-some important things to know".
• Always install rear-facing child safety seats or infant carriers on
the rear seat.
• Never install a rear-facing child restraint
in the forward-facing
direction. Such restraints are designed for the special needs of
infants and very small children and cannot protect them properly
if the seat is forward-facing.
• If you must install a rearward facing
child safety seat on the
front passenger seat because of exceptional circumstances and
the PASSENGER AIR BAG OFF light does not come on and stay on,
immediately install the rear-facing child safety seat in a rear
seating position and have the airbag system inspected by your
Audi dealer.
• Always read and heed all WARNINGS whenever using a child
restrained in a vehicle is being
used :::::, page 176, "Safety belts",
:::::, page 187, "Airbag system" and:::::, page 210, "Important things
to know". •
Convertible child safety seats
Properly used convertible child safety seats can help
protect toddlers and children over age one who weigh
between 20 and 40 lbs. (10 and 20 kg) in a crash.
I d.. a, a,
Fig. 186 Rear seat:
smaller child in a prop·
erly installed forward·
facing convertible chi Id
safety seat
-When using the vehicle safety belt to install a child safety
seat, you must first activate the convertible locking
feature on the safety belt to prevent the child safety seat
from
moving ~ page 220 or install the seat using the
LATCH attachment.
-Push the child safety seat down with your full weight to
get the safety belt really tight so that the seat cannot
move forward or sideways more than one inch (2.5 cm)
~ page 220.
-If the child safety seat is equipped with a tether strap ,
attach it to the tether
anchors ~ page 229.
A toddler or child is usually too large for an infant restraint if it is
more than one year old and weighs more than 22 lbs. (10 kgl.
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Booster seats
Properly used booster seats can help protect children
weighing between about 40 lbs. and 80 lbs. (18 kg and 36
kg) who are less than 4
ft. 9 in. tall.
Fig. 187 Rear seat:
child properly
restrained in a booster
seat
The vehicle's safety belts alone will not fit most children
until they are at least 4 ft. 9 in. tall and weigh about 80 lbs.
(36 kgl. Booster seats raise these children up so that the
safety belt will pass properly over the stronger parts of their
bodies and the safety belt can help protect them in a crash.
-Do not use the convertible locking retractor when using
the vehicle's safety belt to restrain a child on a booster seat.
-Always position the shoulder portion of the safety belt midway over the child's shoulder.
-Always make sure that the shoulder portion of the safety
belt never rests against or across the child's neck.
-Always make sure that the child can properly wear the
lap portion of the belt low across the thighs or pelvis and
never over the stomach or abdomen.
Children up to about 40 lbs (18 kg) are best protected in child safety
seats designed for their age and weight. Experts say that the skel­
etal structure, particularly the pelvis, of these children is not fully
developed, and they should not use the vehicle safety belts
~ page218,fig.187.
Children who weigh more than 40 lbs. (18 kg) may generally use the
available three point combination lap and shoulder belts when they
sit on an appropriate booster seat. Be sure the booster seat meets
all applicable safety standards.
Booster seats raise the seating position of the child and reposition
both the lap and shoulder parts of the safety belt so that they pass
across the child's body in the right places. The routing of the belt
over the child's body is very important for the child's protection .
This applies whenever a child uses the vehicle's safety belts, even
when the child is big enough to use them without a booster seat. Children age 12 and under should always ride in the rear seat .
Children should not ride in the front seat unless no other seating
position is available because crash statistics show that children are
better protected in the rear seat.
In a crash , airbags must inflate within a blink of an eye and with
considerable force . In order to do its job, the airbag needs room to
inflate so that it will be there to protect the occupant as the occu­
pant moves forward into the airbag.
A vehicle occupant including a child who is out of position and too
close to the airbag gets in the way of an inflating airbag. When an
occupant is too close, he or she will be struck violently and will
receive serious or possibly even fatal injury .
In order for the airbag to offer protection, it is important that all
vehicle occupants, especially any children, who must be in the front
seat in exceptional circumstances, be properly restrained and as far
away from the airbag as possible. By keeping room between the _.,.

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Children who weigh more than about 80 lbs (36 kg) and are at least
4 ft . 9 in. tal l can genera lly use the veh ic le's three po int lap a nd
shou lder belts . Chi ldren should use a lap belt only in very excep ­
tiona l situations and on ly if no child restraint system for the child's
size and weight or safer a lternative means of transportation of the
child is available. In these exceptiona l situations, the use of a lap
belt is better t han permitting t he ch ild to re main total ly unre ­
strained. But remember : a lap be lt cannot provide the same level of
protection as a proper c hild restraint or a t hree -poi nt lap and
shou lder be lt if the child is big enough . A lso, using a lap belt for
younger chi ldre n, who s hould be us ing a chi ld restrai nt, may v iola te
l aws in your state or Province .
N ever use a lap belt alone to rest ra in a chi ld that we ig hs less than
about 80 lbs (36 kg) and w ho is less t han 4'9" ta ll. A lways remember
t hat chi ld ren do not have the pronounced pelv ic structure requ ired
f or t he proper function o f lap belts . If a lap belt is o nly restra int
system available, then the chi ld's safety absolutely requires that the
l ap be lt be fastened snug ly and as low as possible around t he pelv is
l et a lap belt pass over the chi ld's stomach or abdomen .
& WARNING
Using wrong child restraints or improperly installed child
restraints can cau se seriou s personal injury or death in a crash.
• Failure to properly route safety belt s over a child's body will
cau se severe injurie s in a crash . The lap belt portion of the three
point belt a s well as any lap belt alone must always pass as low as
po ssible acros s the pelvis, never over the stomach or abdomen.
• An improperly worn safety belt will not provide the best protec­
tion in a crash and may cause serious personal injury . Al ways
make sure that children and other vehicle occupants properly
wear available restraint sy stem s. Carefully follow the in struction s
prov ided by the manufacturers of child restraints .
•
Installing a child safety seat
Securing a child safety seat using a safety
belt
S afe ty belts for the rea r seats and the fr ont pa ssenger can
be locke d with the c onvertible locking retract or to prop ­
erly secure child safety seats.
T he safe ty belts emergency locking re tracto rs fo r the rea r sea ts
sa fety be lts a nd for t he front passenger's seat safety belt have a
conve rtible lock ing ret ractor for child rest ra ints . The safety belt
must be loc ked so t hat belt webbing ca nnot unree l. The retractor
can be activated to lock the safety be lt and prevent the safety be lt
webbi ng from l oosen ing up dur ing normal dr ivi ng. A c hild sa fe ty
seat can only be properly instal led when the safety belt is locked so
t hat t he ch ild and c hild safety seat will s tay in place .
A lways remember: Even though your vehicle is equipped with an
Advanced Ai rbag sys tem, al l c h ild ren, especially those 12 years and
younger, should always r ide in the back seat proper ly restra ined for
their age and size.
& WARNING
Improperly installed child safety seats increase the risk of serious
per sonal injury and death in a collision .
• Always make sure that the safety belt retractor is locked when
installing a child safety seat. An unlo cked safety belt retra ctor
cannot hold the child safety seat in pla ce during normal driving or
in a crash.
• Alway s buckle the child safety seat firmly
in place even if a
c hild is not sitting in it. A loose child safety seat can fly around
during a sudden stop or in a collision
• Alway s make sure that the rear seat backre st to which the
center rear safety belt is attached is securely latched whenever
the rear center safety belt is being u sed to se cure a child re straint.
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& WARNING
Rearward-facing child restraints:
• A child in a rearward-facing child safety seat installed on the
front passenger seat will be seriously injured and can be killed if
the front airbag inflates -even with an Advanced Airbag System.
• The inflating airbag will hit the child safety seat or infant
carrier with great force and will smash the child safety seat and
child against the backrest, center arm rest, door or roof.
• Always be especially careful if you must install a rearward
facing child safety seat on the front passenger seat in exceptional
circumstances.
• A tight tether strap on a rearward-facing child restraint
attached to the front passenger seat can put too much pressure
on the weight-mat in the seat and register a heavier weight in the
Advanced Airbag System. The heavier weight registered can make
the system work as though an adult were on the seat and deploy
the Advanced Airbag when it must be suppressed causing serious or even fatal injury to the child.
• Make sure that the PASSENGER AIR BAG OFF light comes on
and stays on all the time whenever the ignition is switched on.
• If the PASSENGER AIR BAG OFF light does not come on and stay
on, immediately install the rear-facing child safety seat in a rear
seating position and have the airbag system inspected by your
Audi dealer. •
Activating the convertible locking retractor
Use the convertible locking retractor to secure a child
restraint.
Always heed the child safety seat manufacturer's instruc­
tions when installing a child restraint in your vehicle. To
activate the convertible locking retractor:
-Place the child restraint on a seat, preferably on the rear
seat.
-Slowly pull the belt all the way out.
-Route it around or through the child restraint belt path
=>& .
-Push the child safety seat down with your full weight to
get the safety belt really tight.
-Insert the belt tongue into the buckle for that seating
position.
-Guide the safety belt back into the retractor until the belt
lies flat and snug on the child safety seat.
-You should hear a "clicking" noise as the belt winds back
into the inertia reel. Test the convertible locking retractor
by pulling on the belt. You should no longer be able to
pull the belt out of the retractor. The convertible locking
retractor is now activated.
-Make sure that the red release button is facing away from
the child restraint so that it can be unbuckled quickly.
-Pull on the belt to make sure the safety belt is properly
tight and fastened so that the seat cannot move forward
or sideways more than one inch (2.5 cm).
& WARNING
Using the wrong child restraint or an improperly installed child
restraint can cause serious personal injury or death in a crash.
• Always make sure that the safety belt retractor is locked when
installing a child safety seat. An unlocked safety belt retractor
cannot hold the child safety seat in place during normal driving or
in a crash.
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____________________________________________ C_ h_ i_ ld _ S_a_ f_e _t .:..Y _ .... 911
& WARNING (continued)
• Always buckle the child safety seat firmly in place even if a
child is not sitting in it. A loose child safety seat can fly around
during a sudden stop or in a crash.
• Always make sure the seat backrest to which the child restraint
is installed is in an upright position and securely latched into place
and cannot fold forward. Otherwise, the seat back with the child
safety seat attached to it could fly forward in the event of an acci­
dent or other emergency situation.
• Always read and heed all WARNINGS whenever using a child
restrained in a vehicle is being used
=> page 210. Special precau­
tions apply when installing a child safety seat on the front
passenger
seat=> page 189, "Child restraints on the front seat -
some important things to know" .•
Deactivating the convertible locking retractor
The convertible locking retractor for child restraints will
be deactivated automatically when the belt is wound all
the way back into the retractor.
- Press the red button on the safety belt buckle. The belt
tongue will pop out of the buckle.
- Guide the belt all the way back into its stowed position.
Always let the safety belt retract completely into its stowed position.
The safety belt can now be used as an ordinary safety belt without
the convertible locking retractor for child restraints.
If the convertible locking retractor should be activated inadvert­
ently, the safety belt must be unfastened and guided completely
back into its stowed position to deactivate this feature. If the
convertible locking retractor is not deactivated, the safety belt will
gradually become tighter and uncomfortable to wear.
Controls and equip­ ment Safety first Vehicle operation
LJ}. WARNING
Improperly installed
child safety seats increase the risk of serious
personal injury and death in a collision.
• Never unfasten the safety belt to deactivate the convertible
locking retractor for child restraints while the vehicle is moving.
You would not be restrained and could be seriously injured in an
accident.
• Always read and heed all WARNINGS whenever using a child
restrained in a vehicle is being used
=> page 210. Special precau­
tions apply when installing a child safety seat on the front
passenger
seat => page 189, "Child restraints on the front seat -
some important things to know" .•
Additional Information
What types of child restraint anchors are
available and hovv are they related to child
safety?
For years, child restraints have been installed using the safety belts
already present in every vehicle.
Since September 1, 1999, child restraint manufacturers have been
providing tether straps that attach the top of the child restraint to
the vehicles structure, on most of their forward-facing systems in order to comply with U.S. Federal regulations for child restraint
performance in a crash. Vehicle manufacturers are required to
phase -in tether anchorages for attachment of the tether strap in
their U.S. vehicles beginning September 1, 1999.
The combination of the tether anchorages and the lower anchor­ ages is now generally called the LATCH system for "Lower Anchor
and Tether for Children".
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Vehicle care Do-it-yourself service Technical data

/b, WARNING (continued)
• Always read and heed the important information and WARN­
INGS about child safety and the installation of child restraint
systems=> page 210, "Child Safety" .•
Mounting and releasing the anchorage hook
If you use a child restraint system with hooks or other
latches attached to adjustable straps.
Mounting
- Press the anchorage hook with the spring catch release
onto the lower anchorage so that the anchorage hook
locks into place.
- Pull on the anchorage hook to make sure that it has
securely engaged the lower anchorage.
- Tighten the strap following the child restraint manufac ­
turer 's instructions.
Releasing
- Loosen the tension on the strap following the child
restraint manufacture r's instructions .
- Depress the spring catch on the hook.
- Hold the spring catch in depressed position.
- Move the hook in the d irect ion of the vehicle floor so that
there is enough space to release the anchorage hook
from the lower anchorage.
Safety first
Child Safety
LJ}. WARNING
• Improper installation of child restraints will increase the risk of
injuries in a crash.
• Always refer to the child restraints manufacturer's instructions
for proper installation of the child restraint and proper use of the lower anchorages or safety belts in your vehicle.
•
Tether anchors
Fig. 196 Tether
anchors: attachment
hook locations behind
the rear seatbacks
Beginning with model year 2000, the rear seating positions are
equipped with three tether anchors .
The tether anchors for the three rea r seating positions are located
on the backside of the rear seatbacks
=> fig. 196.
LJ}. WARNING
Improper installation of child restraints will increase the risk of
injury and death in a crash.
•
Technical data

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Intelligent technology
Notice about data recorded by
vehicle control modules
Your vehicle is not equipped with an Event Data Recorder (EDR),
installed by some manufacturers for the express purpose of
capturing data for retrieval after an accident or crash event . EDR's
are sometimes called "crash recorders" .
Some state laws restrict the retrieval or downloading of data stored
by EDR's that were insta lled in a vehicle for the express purpose of
retrieving data after an accident or crash event without the owner's
consent.
Although your vehicle is not equipped with an EDR, it is equipped
with a number of electronic control modules for various vehicle
systems such as, for example, engine function, emission control, as
we ll
as for the airbags and safety belts.
These electronic control modules also record vehicle-related data
during normal vehicle operation for diagnostic and repair purposes .
The recording capacity of the electronic control modules is limited
to data (no sound is recorded) and only a small amount of data is
actually 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 vehic le speed, d irection,
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
down loaded with special equipment. •
Electronic Stabilization Program (ESP)
General information
The ESP improves the vehicle stability.
(X) CD
Fig. 199 Center
console with ESP
sw itch
ESP is designed to he lp you maintain vehic le control in situations
where the car approaches the limits of "grip", especial ly when
acce lerating and cornering. ESP reduces the risk of skidding and
improves stability under al l road conditions.
The system operates across the entire speed range in combination
with the ABS system . If the Anti-Lock Brake System (ABS) malfunc ­
t ions, the ESP will a lso shu t down.
How the system works
The Anti-Lock Brake System (ABS), Electronic Differential Lock (EDU
and the Anti -Slip Regu lation System (ASR) are integrated in the e lec ­
tronic stabilization program . In addition to the data provided by
these functions, the ESP control unit requires additional measure ­
ment data provided by high performance sensors. The rotational
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speed of the vehicle about its vertica l axis, the lateral acce leration
ac ting on the veh ic le, the brake pressure and the s teering ang le a re
a ll measured .
The direction in which the driver wishes to travel is determined with
the aid of the steering angle and veh icle speed and is continua lly
compared with the actual behavior of the vehicle. If the two do not
match, -for example, when the vehicle starts hydrop la ning on a
wet road -
, ESP will au tomatical ly brake the appropria te wheel to
correct the problem .
The vehicle is then stabi lized by the forces acting on the whee l
during braking . If the vehicle is
oversteering (r ea r tends to skid out
of the turn), t he brakes are main ly app lied on the whee l that is on
the outside of the curve . In the case of a vehicle that is
understeering
(tendency to s lide out of the curve) , the bra kes are applied at the
rear whee l that is on the inside of the curve. An acoustic signal indi ­
cates when ESP brake appl ication cuts in
=> & .
The system operates across the entire speed range in combination
wi th the ABS system
~ page 240. If the Ant i- Lock Brake Sys te m
(ABS) malfunctions, the ESP wi ll be out of act ion as well.
Ac tivat ion
When you turn on the engine, ESP will automatica lly be activated
and will perfo rm a self -test.
You can activate a deactivated ESP or deact ivated ASR as requ ired
by pressing the
=> page 236, fig. 199 button.
D eac tiva tion
Norma lly, the ESP should always be on .
When necessary, you can deact ivate Anti -Slip Regulat ion (ASR) or
the Electronic Stabilization Program (ESP) by pressing the button
=> page 236, fig. 199 .
• Dea ctivating A SR: Tap briefly on the ESP button . In certain excep ­
t iona l situations (e .g. driving wit h tire chains or a t a forced pace
around a track), the Anti-S lip Regu lation (ASR) can be deactivated
Controls and equip­
ment Safety first Vehicle operation
=> page
238 . The ESP check light flashes . T ap the ESP button again
t o r eact ivate ASR. The ESP check light g oes out .
• Deactiv ating ESP : Press the ESP button for more than 3 seconds .
W ith ESP deactivated, the ESP check ligh t illum inates cons tant ly .
Press the ESP button again to reactivate ESP . The ESP check light
g o es out .
& WARNING
The Electronic Stabilization Program i s neve rthele ss subject to the
laws of physi cs . It is part icularly important to pa y attent ion to thi s
fact on we t and slippery roads . It is therefore important that you
always adapt your driving to the condit ion of the road and traffic
c onditions. Do not allow the inc reased safety provided by the Elec ­
tronic Stabiliz ation Program sy stem to lull you into a ccepting
additional safety ri sk s.
• Plea se note that when ESP or ASR is dea ctivated , the drive
wheels can spin on icy and slippery roads and the vehicle can
break a way -da nger of skidding! •
Electronic differential lock (EDL)
The elec tr o nic differen tial l ock mon itors t he r ota tion al
speed of the drive wheels .
Gener al not es
The elec tronic d if f erential l ock (EDU helps the ca r to start mov ing,
accelerate and c limb a grad ient on surfaces providing poor or
a lmost n o grip. W ithout EDL, th is w ould be difficult, if no t impos ­
sib le.
How the system works
The EDL operates automatical ly. It monitors the rotational speed of
the drive whee ls on an ax le with the he lp of t he ABS senso rs
=> page 2 40 . If a noticeable difference in rotational speed between
the drive wheels on one axle is de tected (e .g. on sl ippery grou nd
on .,,.
Vehicle care Do-it-yourself service Technical data