2008 AUDI A5 ignition

Audi parking system141
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Activating
– Engage reverse gear to automatically activate the
parking system advanced, or
– Press the switch

in the centre console ⇒page 138,
fig. 152 to manually activate the parking system
advanced. You will hear a short beep to confirm that the
parking system has been activated. The indicator lamp in
the switch will light up.
Deactivating
– Drive forwards faster than approx. 10 km/h, or
– Switch off the ignition to automatically deactivate the
complete parking system, or
– Press the switch

in the centre console ⇒page 138,
fig. 152 to deactivate the parking system advanced. The
indicator lamp in the switch will go out.
Activate the system manually if you are driving forwards and would
like the system to give a warning as you approach potential obsta-
cles, for instance when parking.
The measuring range of the sensors in the front and rear bumpers
starts at approximately:Warning beeps
The warning beeps are produced by sound boxes. The volume and
pitch of the beeps can be adjusted in the MMI ⇒page 148.
Mute function
An acoustic proximity warning is cancelled when you apply the
parking brake or move the selector lever of the automatic gearbox
to position P. However, the system remains active. The warning
beeps will start again as soon as you release the parking brake or
move the selector lever out of position P if the system has detected
an obstacle.
Reversing/driving forwards
When the vehicle is reversing/driving forwards, the system starts to
beep if it registers an obstacle within its detection range (see
above). The warnings will beep increasingly rapidly as the vehicle
approaches the obstacle.
When the vehicle is less than approx. 0.30 m away from the obstacle
the warning tone will sound continuously. From here at the latest,
the driver should then not reverse/drive forwards any further.
The volume of the warning beeps will be gradually reduced after
about 4 seconds if the vehicle remains at a constant distance from
a detected obstacle (it will not be reduced if the obstacle is closer
than 0.30 m). The warnings will then return to the normal volume if
the vehicle approaches the detected obstacle again.
Parking
If the parking manoeuvre involves shunting backwards and
forwards, the warning sound will be switched off temporarily while
you change gear. The proximity graphic will, however, still be
Fig. 155 MMI display:
proximity graphic
Front
Side
0.90 m
Centre
1.20 m
Rear
Side
0.60 m
Centre
1.60 m
document_0900452a8179700c.book Seite 141 Donnerstag, 22. März 2007 10:19 10

Audi parking system 152Safety notesApplies to vehicles: with parking systemFault warning for the acoustic parking aidparking system:
If you hear a long beep when you engage reverse gear, the rear
parking aid is not functioning correctly.
parking system plus*/parking system advanced*:
If you hear a long beep for a few seconds when you engage reverse
gear and the diode in the switch
* starts flashing, there is a fault
in the rear and front parking system with graphic display.
You will be notified of a system fault
•
when you manually activate the parking system via the switch
* ⇒page 138•
the first time you engage reverse gear after switching on the
ignition, or
•
immediately, if the fault is identified while you are using the
parking system.Note
If the system alerts you to a fault please have the fault rectified by
an Audi workshop or other qualified workshop.Applies to vehicles: with parking system advancedNotes on reversing cameraWe recommend that you practise parking with the reversing camera
in a quiet location (car park or similar) in order to become familiar
with the system, including the orientation lines and all the other
features. Ideally, the weather and light conditions should be good.Vehicles or other objects shown in the MMI display appear to be
further away or closer, if:
•
you are reversing from a horizontal surface up a gradient or
down a hill,
•
you are reversing towards protruding objects,
•
the vehicle has been loaded with a greater load on the rear.
The accuracy of the orientation lines and the blue area markings
decreases if:
•
the reversing camera does not provide a reliable image, e.g. if
visibility is poor or the lens is dirty,
•
the sun is so dazzling that you cannot see the image on the
display screen.
How to clean the lens of the reversing camera:
•
Moisten the lens using a commercially available, alcohol-based
glass cleaning agent and clean the lens with a dry cloth.
•
Remove snow using a small brush.
•
If possible, use de-icing spray to remove any ice ⇒.
WARNING
•
Even when using the reversing camera, the driver must still
keep a close watch on the area behind the vehicle and use the
mirrors.
•
For technical reasons, the reversing camera cannot show the
complete area behind the vehicle ⇒page 144, fig. 159. It is partic-
ularly important to ensure that there are no small children or
animals near the vehicle, as the reversing camera may not always
be able to detect them (accident risk).
•
The parking aid cannot replace the full concentration of the
driver. The driver is always responsible for safety during parking
and other manoeuvres. Always keep a close watch on the area
around the vehicle.
document_0900452a8179700c.book Seite 152 Donnerstag, 22. März 2007 10:19 10

HomeLink155
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
At the operating unit
1. Switch on the ignition (do not start the engine).
2. Press and hold down the two outer HomeLink buttons
⇒page 154, fig. 171 until the indicator diode
⇒page 154, fig. 171 begins to flash after about
20 seconds. This procedure will delete the standard
factory settings and does not need to be repeated when
programming the other buttons.
3. Press the particular HomeLink button which you would
like to program.
4. Wait until the diode begins to flash. The HomeLink
module now remains in training mode for 5 minutes.
5. Now step in front of your vehicle with the original hand-
held transmitter for the garage door opener or any other
device you wish to assign to the HomeLink control
button.
At the radiator grille
6. Hold the original hand-held transmitter at or near the
centre of your car's radiator grille ⇒page 154, fig. 172.
7. Press the activator button on the original hand-held
transmitter.
8. As you do so, watch the turn signals on your vehicle.
HomeLink confirms successful programming by flashing
all four turn signals three times.
9. If the turn signals fail to flash three times, repeat the
procedure with the transmitter held at a different
distance from the radiator grille.
The proper distance between the hand-held transmitter and the
HomeLink module at the radiator grille depends on the system you
want to train. It may require several attempts.
The turn signals will flash once if the time limit for the programming
mode has been exceeded. In this case the programming procedure
needs to be performed again. Repeat the sequence at the operating
unit starting with step 3.
The programming instructions above also apply to the other control
buttons. Start with step 3 if you wish to proceed and program the
other two buttons.
If the garage door or other devices still fail to be activated with the
HomeLink control buttons after programming is completed, it is
possible that these systems might be working with a rolling code
instead of the normal fixed security code. If this is the case, a rolling
code programming is required in addition to the steps described
above. ⇒page 155Applies to vehicles: with HomeLinkRolling code programming
Some devices require rolling code programming of the
HomeLink universal transmitter.Identifying a rolling code
– Press the already programmed HomeLink button again
and hold it down.
–Watch HomeLink diode ⇒page 154, fig. 171. If the
diode starts flashing rapidly and turns into a constant
light after about 2 seconds, this indicates that the device
you wish to operate (e.g. a garage door opener) is
equipped with a rolling code.
– Program the rolling code as follows:
AA
AA
AA
document_0900452a8179700c.book Seite 155 Donnerstag, 22. März 2007 10:19 10

HomeLink 156
Activating the garage door opener drive unit
– Locate the programming button on the garage door
drive. The exact location and colour of the button may
vary depending on the type of garage door opener.
– Press the programming button on the door drive unit
(this will normally cause a “programming mode indicator
lamp” on the unit to light up). You now have about 30
seconds to start and complete the programming of the
HomeLink control button on the operating unit.
Programming at the operating unit in the
headliner
– Press and release the already programmed HomeLink
button.
– Press the HomeLink button again to complete rolling
code programming.After programming at the operating unit in the headliner, the
garage door opener should recognize the HomeLink signal and
respond when the HomeLink button is pressed. Now the other
control buttons can be programmed as required.
Note
•
Having a second person assist you makes programming of the
rolling code easier and faster. For some makes of garage door
openers the HomeLink button may have to be pressed a third time
to complete the training sequence.
•
If you encounter problems programming the rolling code you
may find helpful information in the operating instructions of the
garage door opener or other device you wish to operate.
Applies to vehicles: with HomeLinkOperating HomeLink
The programmed devices are activated by means of the
HomeLink control buttons in the headliner.– Make sure that the ignition is on.
– Press the programmed HomeLink button ⇒page 154,
fig. 171. The device assigned to that button (e.g. garage
door) will be activated.The HomeLink indicator diode ⇒page 154, fig. 171 will light up
when you press the button.Applies to vehicles: with HomeLinkErasing the button programming
You can erase the complete HomeLink programming by
pressing the two outer buttons.– Switch on the ignition (do not start the engine).
– Press and hold down the two outer buttons until the indi-
cator diode starts to flash ⇒page 154, fig. 171.
– Then release the buttons.After the programming of the HomeLink buttons has been erased,
the system will return to the training mode and is ready to be re-
programmed at any time.
Note
•
Programmed buttons cannot be erased individually.
•
For security reasons it is advisable to erase the programming of
the HomeLink buttons prior to selling your vehicle.
document_0900452a8179700c.book Seite 156 Donnerstag, 22. März 2007 10:19 10

Airbag system 176Airbag 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 and 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 170, “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 70, “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.
document_0900452a8179700c.book Seite 176 Donnerstag, 22. März 2007 10:19 10

Airbag system183
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data control for the garage door). These objects could cause injury if the
head-protection airbag is triggered.
•
The sensors for the airbags are located in the front doors. You
must therefore not make any modifications to the doors or door
trim (e.g. retrofitting loudspeakers), as this could impair the func-
tion of the side airbags. Any damage to the front doors could lead
to faults in the system. Repairs or any other work on the front
doors must therefore always be carried out by a qualified work-
shop.
•
Where sun blinds are fitted on the rear doors, these must not
obstruct or impair the airbags in any way.
•
If unsuitable accessories are installed near the head-protection
airbag, the protection afforded by the airbag can be seriously
impaired if the system is triggered. When the head-protection
airbag opens, parts of these accessories could be thrown into the
vehicle and injure passengers ⇒page 250.
•
Any work involving the head-protection airbags, or removal
and installation of the airbag components for other repairs (such
as repairs to the roof liner), must always be performed by a quali-
fied workshop. Otherwise the airbag system may fail to work
properly.
Applies to vehicles: with key-operated switch for front passenger's airbagDeactivating the front passenger's airbag via the key-operated switchIf an airbag has been deactivated, it should be reactivated
as soon as possible so that it can continue to give the
required protection.The key-operated switch for deactivating the front
passenger's airbag is located in the glove box ⇒fig. 195.
– To deactivate the front passenger's airbag, insert the
ignition key into the switch and turn it to position .
WARNING (continued)
Fig. 195 Key-operated
switch in glove box for
deactivating front
passenger's airbagFig. 196 Lamp indi-
cates that front
passenger's airbag has
been deactivated via
key-operated switch
AOFF
document_0900452a8179700c.book Seite 183 Donnerstag, 22. März 2007 10:19 10

Airbag system 184
– The front passenger's airbag can be reactivated by
turning the key to position .Deactivating front passenger's airbag when a child
safety seat is in use
If you have no alternative but to install a rearward-facing child safety
seat on the front passenger's seat you must deactivate the front
passenger's airbag beforehand.
We recommend, however, that child seats should be only fitted on
the rear seat so that the front passenger's airbag can remain func-
tional and provide protection in an accident ⇒page 185.
Monitoring of airbag system
The airbag warning lamp will light up for a few seconds every time
the ignition is switched on.
If the front passenger's airbag has been deactivated via the key-
operated switch, the indicator lamp “PASSENGER AIRBAG OFF” will
light up constantly as a reminder ⇒fig. 196. Please refer also to the
description of the
 warning lamp in the instrument cluster
⇒page 16.
When the front passenger's airbag is deactivated using the key-
operated switch, the seat belt warning lamp for the front passenger
 ⇒page 17 is also switched off.
WARNING
•
If you have no alternative but to install a rearward-facing child
seat on the front passenger's seat, the front passenger's airbag
must be deactivated beforehand. Potentially fatal injuries to the
child can result if the front passenger's airbag is not deactvated!
⇒page 186, “Using a child safety seat on the front passenger's
seat”
•
If you have deactivated the front passenger's airbag, reactivate
it as soon as the child seat is no longer needed so that the airbag
can continue to give the required protection.
•
It is the driver's responsibility to ensure that the key-operated
switch is set to the correct position.Note
All the other airbags in the car will remain functional if the front
passenger's airbag has been deactivated with the key-operated
switch.
AON
WARNING (continued)
document_0900452a8179700c.book Seite 184 Donnerstag, 22. März 2007 10:19 10

Intelligent technology 202Replacing tyres
On vehicles with four-wheel drive, all four tyres must have the same
rolling circumference. Also avoid using tyres with varying tread
depths ⇒page 245, “Replacing wheels and tyres”.
Off-roader?
Your Audi does not have enough ground clearance to be used as an
off-road vehicle. It is therefore best to avoid rough tracks and
uneven terrain as much as possible.
WARNING
•
Even with four-wheel drive, you should always adjust your
speed to suit the conditions. Do not let the extra safety provided
tempt you into taking any risks when driving – this can cause acci-
dents.
•
The braking ability of your car is limited by the grip of the tyres.
In this respect, your car is no different from a car without four-
wheel drive. So do not be tempted to drive too fast on icy or slip-
pery roads just because the car still has good acceleration in these
conditions (accident risk).
•
On wet roads bear in mind that the front wheels may start to
“aquaplane” and lose contact with the road if the car is driven too
fast. If this should happen, there will be no sudden increase in
engine speed to warn the driver, as with a front-wheel drive car. So
do not drive too fast in the wet: adjust your speed to suit the
conditions (accident risk).
Power managementThis system helps to ensure reliable starting
The power management controls the distribution of elec-
trical energy and thus helps to ensure that there is always
enough power available to start the engine.If a vehicle with a conventional electrical system is left parked for a
long time, the battery will gradually lose its charge because certain
electrical equipment (such as the immobiliser) continues to draw
current even when the ignition is off. In some cases there may not
be enough power available to start the engine.
Your vehicle is equipped with an intelligent power management
system to control the distribution of electrical energy. This signifi-
cantly improves reliability when starting the engine, and also
prolongs the life of the battery.
The main functions incorporated in the power management system
are battery diagnosis, residual current management and dynamic
power management.
Battery diagnosis
The battery diagnosis function constantly registers the condition of
the battery. Sensors detect the battery voltage, battery current and
battery temperature. This enables the system to calculate the
current power level and charge condition of the battery.
Residual current management
The residual current management reduces power consumption
while the vehicle is parked. It controls the supply of power to the
various electrical components while the ignition is switched off. The
system takes the battery diagnosis data into consideration.
Depending on the power level of the battery, the individual electrical
components are switched off one after the other to prevent the
battery from losing too much charge and to ensure that the engine
can be started reliably.
document_0900452a8179700c.book Seite 202 Donnerstag, 22. März 2007 10:19 10