belt AUDI A4 2008 B8 / 4.G Owner's Manual

Safe driving191
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Examples of incorrect sitting positions
Occupants can suffer severe or fatal injuries injuries if
they sit in an incorrect position while the vehicle is
moving.Seat belts can only provide maximum protection if the belt
webbing is positioned correctly. Sitting out of position
greatly reduces the effectiveness of the seat belts and
increases the risk of injury since the belt webbing is not
worn in the position for which it is designed. The driver is
responsible for the safety of all vehicle occupants, espe-
cially for children.
– Never allow anyone to sit out of position while the
vehicle is moving ⇒.The following list shows just some examples of incorrect sitting
positions which can be dangerous to all occupants. The list is not
complete, but will help to make you aware of possible dangers
which can be avoided.
Therefore, whenever the vehicle is moving:•
never stand up in the vehicle,
•
never stand on the seats,
•
never kneel on the seats,
•
never travel with the backrest reclined too far,
•
never lean against the dash panel,
•
never lie down on the rear seat,
•
never sit on the front edge of a seat,
•
never sit sideways,
•
never lean out of the window,
•
never put your feet out of the window,
•
never put your feet on the dash panel,
•
never put your feet on the seat cushion,
•
never ride in the footwell,
•
never travel on a seat without wearing the seat belt,
•
never climb into the luggage compartment.
WARNING
Sitting out of position increases the risk of severe injuries.•
Sitting out of position exposes the occupants to potentially
fatal injuries: if the airbags inflate they can strike any occupant
who is not in one of the designed seat positions.
•
Before starting a trip, sit in the correct position and stay in this
position as long as the vehicle is moving. Before every trip, make
sure all passengers are sitting in the correct positions and remain
correctly seated at all times ⇒page 73, “Seats and storage”.
Pedal are aPedal s
The pedals must always be free to move and must never
be obstructed by floor mats or any objects in the footwell.– Make sure that the accelerator, brake and clutch pedals
are not obstructed and can be pressed all the way down
to the floor.
– Make sure that all pedals are able to return freely to their
original positions.Only use floor mats which leave the pedal area free and can be
securely fastened in the footwell.
If one of the brake circuits should fail, increased brake pedal travel
will be required to bring the vehicle safely to a stop.
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Safe driving193
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data inside. In this case the child would be unable to get out of the
vehicle without help. This could have fatal consequences.
•
Never allow children to play in or around the vehicle. Always
close and lock the boot lid and all the doors when you leave the
vehicle.
•
Never let passengers ride in the luggage compartment. All
occupants must be properly restrained by the seat belts at all
times ⇒page 194.Note
•
Air circulation in the vehicle helps reduce fogging of the
windows. Used air escapes through ventilation slots in the rear of
the vehicle. Make sure that these ventilation slots are not
obstructed.
•
Suitable belts for securing loads to the fastening rings* are
commercially available.
Applies to vehicles: with fastening ringsFastening rings
Unsecured loads are a hazard to all vehicle occupants.There are fastening rings in the luggage compartment
which can be used to secure luggage and other objects
⇒page 79.
– Use the fastening rings to secure items safely in the
luggage compartment ⇒ in “Loading the luggage
compartment” on page 79.During a collision or an accident, even small and light objects can
possess so much energy that they can cause very severe injuries.
The amount of this “kinetic energy” depends on the speed of the vehicle and the weight of the object. The most significant factor,
however, is the speed of the vehicle.
An example: An object weighing 4.5 kg is lying unsecured in the
vehicle. During a frontal collision at a speed of 50 km/h, this object
generates a force corresponding to 20 times its weight. That means
that the effective weight of the object increases to about 90 kg. You
can imagine the severity of the injuries which might be sustained if
this “projectile” strikes an occupant as it flies through the
passenger compartment.
WARNING
If items of luggage or other objects are secured to the fastening
rings with inappropriate or damaged retaining cords, injuries
could result in the event of sudden braking or a collision.•
To prevent pieces of luggage or other objects from flying
forward, always use appropriate retaining cords which are prop-
erly secured to the fastening rings.
•
Never secure a child seat on the fastening rings.
WARNING (continued)
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Seat belts 194Seat beltsWhy is it so important to use seat
belts?Seat belts provide effective protection
The common belief that passengers can brace their
weight with their hands in a minor collision is false.It is an established fact that seat belts provide good protection in
accidents. Therefore wearing a seat belt is required by law in most
countries.
Properly worn seat belts hold the occupants in the best position for
maximum protection ⇒fig. 203. The seat belts are capable of
absorbing much of the kinetic energy arising in a collision. Also they
help to prevent uncontrolled movements which could lead to severe
injuries ⇒page 195, “Important safety instructions for using seat
belts”.
If they wear the seat belts correctly, the passengers benefit greatly
from the ability of the belts to reduce the kinetic energy gradually.
The front crumple zones and other passive safety features (such as
the airbag system) are also designed to absorb the kinetic energy
generated in a collision. Taken together, all these features reduce the forces acting on the occupants and consequently the risk of
injury.
Although these examples are based on a frontal collision, the phys-
ical principles involved are the same in other types of accidents and
for vehicles with an airbag system. This is why it is so important to
put on the seat belts before every trip – even when “just driving
around the corner”. Ensure that your passengers wear their seat
belts as well ⇒.
Properly worn seat belts have been shown to be an effective means
of reducing the potential for injury and improving the chances of
survival in a serious accident ⇒page 195, “Forces acting in a colli-
sion”.
For information on how children can travel safely in the car
⇒page 210, “Points to remember if children are travelling in the
car”.
WARNING
•
Seat belts must be put on before every trip – even when driving
in town. This also applies to the rear passengers (injury risk).
•
During pregnancy, women should always ensure they wear a
seat belt. The best way to protect the unborn child is to protect the
mother ⇒page 198, “Wearing and adjusting the seat belts during
pregnancy”.
Fig. 203 Driver
protected by the prop-
erly worn seat belt
during a sudden brake
manoeuvre
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Seat belts195
Controls
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Technical data
Important safety instructions for using seat belts
There are a number of safety points concerning the seat
belts which you should remember. This will help to reduce
the risk of injury in an accident.
WARNING
•
The seat belts can only provide maximum protection if the
seats are adjusted properly ⇒page 73, “Seats and storage”.
•
To ensure proper protection, it is important to wear the seat
belts in the correct position ⇒page 197, “How to wear seat belts
properly”. Ensure that the seat belts are worn exactly as recom-
mended in this chapter. Belts which are not worn properly can
increase the risk of injury in accidents considerably.
•
Do not allow the seat belt to become twisted or jammed, or to
rub on any sharp edges.
•
Never allow two passengers (even children) to share the same
seat belt. It is especially dangerous to place a seat belt over a child
sitting on your lap.
•
Do not wear the belt over hard or fragile objects (such as
glasses or pens, etc.) because this can cause injuries.
•
Loose, bulky clothing (such as an overcoat over a jacket)
impairs the proper fit and function of the belts.
•
The belts must be kept clean, otherwise the retractors may not
work properly ⇒page 250, “Seat belts”.
•
The slot in the seat belt buckle must not be blocked with paper
or other objects, as this can prevent the latch plate from engaging
properly.
•
The latch plate of the belt must always be engaged in the
correct buckle for that seat, otherwise the belt will not be fully
effective.
•
Check the condition of the seat belts at regular intervals. If you
notice that the belt webbing, fittings, retractor mechanism or buckle of any of the belts is damaged, the belt must be replaced
by a qualified workshop.
•
The seat belts must not be removed or modified in any way. Do
not attempt to repair a damaged belt yourself.
•
Seat belts which have been worn in an accident and stretched
must be replaced by a qualified workshop. The belt anchorages
should also be checked.
Forces acting in a collisionThe physical principles involved in a frontal impact
Very large forces are generated during a collision; these
forces have to be absorbed.
WARNING (continued)
Fig. 204 Passengers of
a vehicle which is
headed for a brick wall.
They are not using seat
belts.
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Seat belts 196The physical principles involved in a frontal collision are relatively
simple:
Both the moving vehicle and the passengers possess energy, which
is known as “kinetic energy” ⇒page 195, fig. 204. The amount of
“kinetic energy” depends on the speed of the vehicle and the weight
of the vehicle and passengers. The higher the speed and the greater
the weight, the more energy there is to be absorbed in an accident.
The most significant factor, however, is the speed of the vehicle. If
the speed doubles from 25 km/h to 50 km/h, for example, the kinetic
energy increases by a factor of four. Because these passengers are
not restrained by seat belts, the entire amount of kinetic energy has
to be absorbed at the point of impact ⇒fig. 205. This would result
in serious or potentially fatal injury.
Even at urban speeds of 30 km/h to 50 km/h, the forces acting on the
occupants in a collision can reach the equivalent of 1 ton (1000 kg)
or more. At greater speed these forces are even higher. A rule of
thumb: if the speed doubles, the forces increase by a factor of four.
Passengers who do not wear seat belts are not “attached” to the
vehicle. In a frontal collision they will continue to move forward at
the speed their car was travelling just before the impact.
What happens to passengers not wearing seat belts?
Passengers not wearing seat belts risk fatal injuries in the
event of an accident.In a frontal collision, unbelted passengers will be thrown forwards
and make violent contact with the steering wheel, dashboard, wind-
screen, etc ⇒fig. 206. Passengers not wearing their belts risk being
thrown out of the car, resulting in potentially fatal injuries.
The common belief that occupants can brace their weight with their
hands in a minor collision is false. Even at low speeds the forces
acting on the body in a collision are so great that it is not possible
to hold yourself in the seat.
Fig. 205 The vehicle
crashes against the
wall
Fig. 206 A driver not
wearing a seat belt can
be thrown forwardsFig. 207 A rear
passenger not wearing
a seat belt can be
thrown forwards
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Seat belts197
Controls
Safety
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Technical data It is also important for the rear passengers to wear seat belts, as
they could otherwise be thrown forwards violently in an accident.
Rear passengers who do not use seat belts endanger not only them-
selves but also the other occupants ⇒page 196, fig. 207.
How to wear seat belts properlyPutting on the three-point seat belts
Always fasten your seat belts before driving off.– Adjust the front seat and head restraint correctly before
putting on the seat belt ⇒page 73, “Seats and storage”.– To fasten the belt, take hold of the latch plate and pull it
slowly across your chest and lap ⇒.
– Insert the latch plate into the buckle for the appropriate
seat and push it down until it is securely locked with an
audible click ⇒fig. 209.
– Pull the belt to check that it is now securely fastened.
The three-point inertia reel belts are tensioned automatically. The
retractor system gives complete freedom of movement, as long as
the pull on the belt is slow. Hard braking locks the belt. The belt will
also lock when you accelerate, drive up or down a steep hill or in a
sharp curve.
WARNING
•
Always make certain that the belt is positioned properly
⇒fig. 208 – risk of injury ⇒page 197, “Adjusting the seat belts”.
•
The latch plate of the belt must always be engaged in the
correct buckle for that seat. Otherwise the belt will not be fully
effective and the danger of injury increases.
Adjusting the seat belts
Always position seat belts properly for maximum safety.
Fig. 208 Positioning of
head restraints and
seat beltsFig. 209 Driver's seat:
Belt buckle and latch
plate
Fig. 210 Adjusting
shoulder and lap belt
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Seat belts 198The height of the front seat on your vehicle can be adjusted in order
to match the position of the seat belt to your height.
WARNING
•
The diagonal part of the belt should never be positioned across
the neck, but roughly over the centre of the shoulder; it should fit
closely against the upper part of the body. The lap part of the belt
must be worn tightly across the hips, and not over the abdomen
⇒page 197, fig. 210. Pull the belt tight if necessary to take up any
slack.
•
Always make sure that belt is positioned properly. Incorrectly
worn seat belts can give rise to injuries even in a minor collision.
•
Seat belts worn too loose can result in injuries because they
allow excessive forward movement in a crash; the occupant will
be brought to a sudden stop by the belt webbing.
Wearing and adjusting the seat belts during pregnancy
To afford the best protection for the unborn child it is
important for the mother to wear the seat belt properly at
all times.
Women should always ensure they adjust the seat belt
correctly during pregnancy.
– Adjust the front seat and head restraint correctly before
putting on the seat belt ⇒page 73, “Seats and storage”.
– To fasten the belt, take hold of the latch plate and pull it
slowly down across your chest. Wear the lap portion of
the seat belt as low as possible over the hips so that there
is no pressure on the stomach ⇒fig. 211, ⇒.
– Insert the latch plate into the buckle for the appropriate
seat and push it down until it is securely locked with an
audible click ⇒page 197, fig. 209.
– Pull the belt to check that it is now securely fastened.
WARNING
During pregnancy, women should especially make sure to wear
the lap portion of the seat belt as low as possible across the hips
so that there is no pressure on the stomach.
Fig. 211 Positioning
seat belts during preg-
nancy
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Seat belts199
Controls
Safety
Driving tips
General maintenance
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Technical data
Applies to vehicles:Seat belt height adjustment
Seat belt height adjusters can be used to adjust the height
of the shoulder portion of the seat belt.– Take hold of the guide fitting and slide it up ⇒fig. 212 ,
or
–Compress the adjuster and slide the guide fitting
downwards .
– After adjusting, pull the shoulder belt sharply to check
that the catch on the guide fitting is engaged securely.
Note•
The shoulder portion of the seat belt must be positioned roughly
midway over the shoulder – it must never rest against the neck
⇒ in “Adjusting the seat belts” on page 197.
•
It is also possible to adjust the height of the front seats to obtain
the best position for the front seat belts.
Taking off the seat belts
The red button releases the belt from the buckle.– Press the red button in the seat belt buckle ⇒fig. 213.
The latch plate will spring out of the buckle.
– Guide the belt back by hand so that it is taken up by the
retractor.Belt tensionersHow the belt tensioners work
The seat belts for the driver and front passenger are
equipped with belt tensioners.The seat belts on the front seats are tensioned automatically in
frontal, side and rear-end impacts above a certain degree of
severity. This helps to reduce the forward motion of the occupants.
In a less severe accident, or in the event of a roll-over, the belt
tensioners are not activated.
Fig. 212 Belt height
adjustment for the
front seats: guide
fitting
A2
A1
A2
Fig. 213 The latch
plate of the belt
springs out of the
buckle
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Seat belts 200
WARNING
•
Any work on the tensioner system or removal and installation
of system components for other repairs must be performed by a
qualified workshop.
•
The belt tensioners can only be activated once. If they have
been activated at any time, the system must be replaced.Note
•
Some smoke may be released when the belt tensioners are acti-
vated. This does not mean there is a fire in the vehicle.
•
The relevant safety requirements must be observed when the
vehicle or components of the system are scrapped. Your authorised
Audi dealer is familiar with these regulations and will be pleased to
pass on the information to you.
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Airbag system201
Controls
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Technical data
Airbag systemDescription of airbag systemGeneral notes on airbag system
The airbag is an integral part of the car's passive safety
system.In conjunction with the three-point seat belts, the airbag system
gives the front occupants additional protection for the head and
chest in the event of a severe frontal collision.
In a severe side collision the side airbags and the head-protection
airbags reduce the risk of injury to the occupants in the areas of the
body facing the impact ⇒.
In addition to their normal function of protecting the occupants in a
collision, the seat belts also hold them in a position where the
airbags can inflate properly and provide maximum protection.
The airbag system will only work with the ignition on. The airbag
system is monitored electronically; the airbag warning lamp indi-
cates whether the system is functioning properly.
The main parts of the airbag system are:•
the electronic monitoring system (control unit and sensors),
•
the two front airbags,
•
the front side airbags, the side airbags on the outer rear seats*
and the head-protection airbags,
•
the airbag warning lamp in the instrument cluster.
There is a fault in the airbag system if the warning
lamp
•
does not come on when the ignition is switched on,
•
does not go out about 4 seconds after the ignition is switched
on,
•
goes out and then comes on again after the ignition is switched
on,
•
comes on or flickers while the car is moving.
WARNING
•
The airbags are not a substitute for the seat belts; they are an
integral part of the car's overall passive safety system. The airbags
can only offer effective protection if the occupants are wearing
their seat belts. For this reason it is very important to wear the
seat belts at all times ⇒page 194, “Why is it so important to use
seat belts?”.
•
The seat belts and airbags can only provide maximum protec-
tion if the occupants are seated correctly ⇒page 73, “Seats and
storage”.
•
If you do not wear a seat belt, if you lean forward, or are not
seated correctly while the vehicle is in motion, you are at greater
risk of injury should the airbag system be triggered in an accident.
•
Components of the airbag system are located in various parts
of the vehicle. If repairs to other vehicle components make it
necessary to perform work on the airbag system or to remove or
install parts of the airbag system, this may cause damage to the
airbag system. As a result, the airbags may not inflate correctly or
may not be triggered at all in an accident situation. For this reason,
you should always have the work carried out by a qualified work-
shop.
•
If a fault should occur in the airbag system, have the system
checked immediately by a qualified workshop. Otherwise the
system may fail to trigger in an accident.
•
Do not attempt to modify components of the airbag system in
any way.
•
Never make any alterations to the front bumper or the body.
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