ignition AUDI A5 COUPE 2010 Manual Online

___ A_ ir_b _a_ g;:::;_ s--:.. y_s _t _e _m _________________________________________________ _
Side curtain airbags
Description of side curtain airbags
The side curtain airbag system can provide supplemental
protection to p roperly restrained occup ants.
Fig. 202 Si de cu rtai n
sys te m , d riv er' s s ide:
s ide curtai n airb ag
l oca tio n
The side curtain airbags are located on both sides of the interior
above the front and rear side windows=:> fig . 202 . They are identi ­
fied by the word "AIRBAG" on the windshield frame and the center
roof pillar.
The side curtain airbag system supplements the sa fety be lts and
can help to reduce the risk of injury for occupants' heads and upper
t orso on the side of the vehicle that is struck in a side collision . The
side curtain airbag inflates only in side impacts and on ly when the
vehic le acceleration registered by the control unit is high enough. If
this rate is below the reference value programmed into the control
unit, the side airbags will not be triggered, even though the car may
be badly damaged as a result of the collision. It is not possib le to
define an airbag triggering range that will cover every possible
angle of impact, since the circums tances will vary considerab ly
between one col lision and another. Important factors include, for
examp le, the nature (hard or soft) of the impacting object, the angle
of impact, vehicle speed, etc.=:>
page 211, "How side curtain airbags
work" . Aside from their normal safety function, safety belts work
to help
keep the driver or fron t passenger in position in the event of a colli ­
sion so that the side curtain airbags can provide protection.
The airbag system is not a substitute for your safety belt . Rather, it
is part of the overall occupant restraint system in your vehicle .
Always remember that the airbag system can only help to protect
you if you are wearing your safety belt and wearing it properly. This
is another reason why you should always wear your safety belts, not
just because the law requires you to do so=:>
page 179, "General
notes".
I t is important to remember that while the s ide curtain airbag
system is designed to he lp reduce the like lihood of ser ious injuries,
other injuries, for examp le, swelling, bruising, and minor ab rasions
can a lso be associated wi th t hese airbags. Remember too, these
airbags will deploy only once and only in certain kinds of accidents
- your safety belts are a lways there to offer protection.
The sid e curtain airbag system b asically con sist s of :
• The electronic control module and externa l s ide impact sensors
• The side curtain airbags above the front and rear side windows
• The airbag indicator light in the instrument panel
The airbag system is monitored e lectronically to make certain it is
funct ioning proper ly at all t imes. Each time you turn on the ignition,
the airbag system indicator light will come on for a few seconds (self diagnostics) .
The sid e curtain airb ag i s not activated:
• if the ignition is turned off,
• in side collisions when the acceleratio n measured by the sensor
is too low,
• in front -end co llisions,
• in rear -end collisions.

___ C_h_ i_ ld _ S_ a_ f_ e_ t_y ____________________________________________ _
C. Forward-facing convertible child restraint systems,
manufactured on or after September 1, 2004:
• Britax Roundabout 161
• Britax Expressway
• Century Encore 4612
• Century STE 1000 4416
• Cosco Olympian 02803
• Cosco Touriva 02519
• Evenflo Horizon V 425
• Evenflo Medallion 254
• Safety First Comfort Ride 22-400
& WARNING
To reduce the risk of serious injury, make sure that the PASSENGER
AIR BAG OFF light comes on and stays on whenever a child
restraint is installed on the front passenger seat and the ignition
is switched on.
• Take the child restraint off the front passenger seat and install
it properly at one of the rear seat positions if the PASSENGER AIR
BAG OFF light does not stay on.
• Have the airbag system inspected by your authorized Audi
dealer immediately.
[ i] Tips
The child seats listed in categories A to C have been tested by Audi
only for the Advanced Airbag function. •
Important safety instructions for using child
safety seats
Correct use of child safety seats substantially reduces the
risk of injury in an accident!
As the driver, you are responsible for the safety of every ­
body in the vehicle, especially children:
- Always use the right child safety seat for each child and
always use it properly ::::>
page 218.
-Always carefully follow the child safety seat manufac­
turer's instructions on how to route the safety belt prop­
erly through the child safety seat.
- When using the vehicle safety belt to install a child safety
seat, you must first activate the convertible locking
retractor on the safety belt to prevent the child safety
seat from moving ::::>
page 223.
-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).
- If a strap or tether is being used to tie the child safety
seat to the front passenger seat, make sure that it is not
so tight that it causes the weight-sensing mat to
measure more weight than is actually on the seat.
Always remember: Even though your vehicle is equipped with an
Advanced Airbag system, all children, especially those 12 years and
younger, should always ride in the back seat properly restrained for
their age and size. _,,

___ C_h_ i_ld _ S_ a_ f_ e_ t-= y'------------------------------------------------
& WARNING (continued)
- Always move the front passenger seat into the rearmost
position of the passenger seat's fore and aft adjustment range ,
and as far away from the airbag as possible before installing
the child restraint .
- Always make sure that nothing prevents the front
passenger's seat from being moved to the rearmost position in
its fore and aft adjustment range .
- Always make sure that the backrest is in the upright posi ­
tion.
• 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 collision .
• Always read and heed all WARNINGS whenever using a child
restrained in a vehicle is being used=>
page 179, "Safety belts ",
=> page 188, "Airbag system" and => page 213, "Child Safety".
& WARNING
To reduce the risk of serious injury, make sure that the PASSENGER
AIR BAG OFF light comes on and stays on whenever a child
restraint is installed on the front passenger seat and the ignition
is switched on .
• Take the child restraint off the front passenger seat and install
it properly at one of the rear seat positions if the PASSENGER AIR
BAG OFF light does not stay on.
• Have the airbag system inspected by your authorized Audi
dealer immediately.
& WARNING
A child in a child restraint installed with the LATCH lower anchor­
ages or with the standard safety belt on the rear seat may play
& WARNING (continued)
with unused rear seat safety belts and become entangled
resulting in serious personal injury and even death.
• Always buckle unused rear seat safety belts out of reach of chil­
dren in child seats and properly activate the convertible locking
retractor so that the child cannot unreel the safety belt from the
retractor. •
Child safety seats
Infant seats
Babies and infants up to about one year old and 20 lbs.
or 9 kg need special rearward-facing child restraints that
support the back, neck and head in a crash.
Fig . 204 Schematic
overview: rearward­
facing infant seat,
properly installed on
the rear seat
-When using the vehicle safety belt to install a child safety
seat, you must first activate the convertible locking
retractor on the safety belt to prevent the child safety
seat from moving=> page
223 or insta ll the seat using
the LATCH attachments. ..,_

& WARNING !continued)
• Always follow the manufacturer's instructions provided with
the child safety seat or infant carrier.
• Always move the front passenger seat into the rearmost posi­
tion of the passenger seat's fore and aft adjustment range, and as
far away from the airbag as possible before installing the child
restraint.
• Always make sure that nothing prevents the front passenger's
seat from being moved to the rearmost position in its fore and aft
adjustment range .
• Always make sure the backrest is in an upright position .
• 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 light does not stay on, perform the checks~
page 199,
uMonitoring the Advanced Airbag System ".
• Take the child restraint off the front passenger seat and install
it properly at one of the rear seat positions if the PASSENGER AIR
BAG OFF light does not stay on whenever the ignition is switched
on. •
Safety first
Child Safety
Booster seats and safety be lts
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. (57 inches/1.45 meters)
tall.
Fig . 207 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. (57 inches/1.45 meters) tall
and weigh about 80 lbs. (36 kg). 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. If you must transport
an older child in a booster seat on the front passenger
seat , you can use the safety belt height adjustment to
help adjust the shoulder portion properly.
- Always make sure that the shoulder portion of the safety
belt never rests against or across the child's neck.
I)),
Vehicle care I I irechnical data

Child Safety -
--------------------''----
& WARNING (continued )
• If you must install a booster seat on the front passenger seat
because of exceptional c ircumstances the PASSENGER AIR BAG
OFF light must come on and stay on , whenever the ignition is
switched on.
• If the PASSENGER AIR BAG OFF light does not come on and stay
on , perform the checks described
=> page 199 , "Monitoring the
Advanced A irbag System ".
• Take the ch ild restraint off the front passenger seat and install
it properly at one of the rear seat positions if the PASSENGER AIR
BAG OFF light does not stay on wheneve r the ignition is switched
on .
• Always read and heed all WARNINGS whenever using a child
restrained in a vehicle is being used=>
page 179, "Safety belts",
=> page 188, "Airbag system " and => page 213 , "Important things
to know ".•
Installing a child safety seat
Securing a child safety seat using a safety
belt
S a fety belt s fo r the rear seats and the front passen ger 's
sea t can be l ocked with t he convert ib le lock ing retra cto r
t o prope rly s ecure child saf ety s ea ts .
The s afe ty bel ts e merge ncy lo cking re trac to rs fo r th e rea r sea ts
safety belts and for the front pass enger's seat safety belt have a
c o nve rtible loc king re tr ac tor fo r child r estrai nts. The sa fe ty b elt
must be loc ked so that be lt webbin g cannot unr eel. The re trac tor
c an be activa te d to lock the safety be lt and prevent the safet y belt
w ebbi ng fr om l oos en ing up dur in g n orm al dr ivi ng . A chi ld sa fety
seat can only be properly insta lled when t he safety be lt is locked so
th at th e child and chil d sa fet y seat will sta y in p lace .
Controls and equip­ ment Safety first Vehicle operation A
lways remember: Even though your vehic le is equipped with an
A dva nce d Airb ag sys tem, all chi ld re n, e sp ec ially those 12 yea rs a nd
youn ger, should a lways ride in the back seat prop erly restrained for
t hei r age and weigh t.
& WARNING
Improperly installed child safety seats increase the risk of serious
personal injury and death in a collision .
• 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 .
• 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 collision .
• Always make sure that the rear seat backrest to which the
center rear safety belt is attached is securely latched whenever
the rear center safety belt is being used to secure a child restraint.
• If the backrest is not securely latched , the child and the child
restraint will be thrown forward together with the backrest and
will strike parts of the vehicle interior. The child can be seriously injured or killed.
• Never install rearward -facing child safety seats or infant
carriers on the front passenger seat . A child will be seriously
injured and can be killed when the passenger airbag inflates.
• 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 armrest , door or roof .
• Always install rearward -facing child safety seats or infant
c arriers on the rear seat .
• Forward-facing child safety seats or infant carriers installed on
the front passenger's seat may interfere with the deployment of
the airbag and cause serious injury to the child . ..
Vehicle care Do-it-yourself service Technical data

-Child Safety -------=---------------------------------------
& WARNING (continued )
• It is safer to install a forward-f acing child safety seat on the rear
seat.
• Always read and heed all WARNINGS whenever using a child
restrained in a vehicle is being used=>
page 213 . Special precau­
tions apply when installing a child safety seat on the front
passenger seat:::::,
page 190 , "Child restraints on the front seat -
some important thing s to know ".
& WARNING
Always take special precautions if you must install a forward or
rearward-facing child restraint on the front passenger's seat in
exceptional situations :
• Whenever a forward or rearward -facing child restraint is
installed on the front passenger seat , the PASSENGER AIR BAG
OFF light must come on and stay on whenever the ignition is
switched on.
• If the PASSENGER AIR BAG OFF light does not come on and stay
on , perform the checks described=>
page 199, "Monitoring the
Advanced Airbag System ".
• Take the child restraint off the front passenger seat and install
it properly at one of the rear seat positions if the PASSENGER AIR
BAG OFF light does not stay on whenever the ignition is switched
on .
• Improper installation of child restraints can reduce their effec ­
tiveness or even prevent them from providing any prote ction .
• An improperly installed child restraint can interfere with the
airbag as it deploys and seriously injure or even kill the child .
• Always carefully follow the manufacturer's instructions
provided with the child safety seat or carrier .
• Never place additional items on the seat that can increase the
total weight registered by the weight-sensing mat and can cause
injury in a crash .
& WARNING
Forward-facing ch ild restraints :
• Always make sure the forward-facing seat has been designed
and certified by its manufa cturer for use on a front seat with a
passenger front and side airbag .
• Never put the forward-facing child restraint up , against or very
near the instrument panel.
• Always move the passenger seat into its rearmost position in
the seat's fore and aft adjustment range , as far away from the
airbag as possible before installing the forward-facing child
re straint. The backrest must be adjusted to an upright position.
• Make sure that the PASSENGER AIR BAG OFF light comes on
and stays on all the time whenever the ignition is switched on.
& WARNING
Re arward -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 armrest , door or roof .
• Always be e specially 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 pas senger seat can put too much pres sure
on the weight -m at 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 ser ious
or even fatal injury to the child.
Ill-

Child Safety -
--------------------''---
& WARNING (continued)
• 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 rearward-facing child safety seat in a
rear seating position and have the airbag system inspected by
your authorized 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.
- Gu ide the safety belt back into the retractor until the belt
lies flat and snug on the child safety seat.
Controls and equip­
ment Safety first Vehicle operation
- You should
hear a "clicking" noise as the belt winds back
into the inertia reel. Test the convertible locking retractor
by pul ling 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.
• 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 213. Special precau­
tions apply when installing a child safety seat on the front
passenger seat=>
page 190, "Child restraints on the front seat -
some important things to know". •
Vehicle care Do-it-yourself service Technical data

& WARNING (continued)
vehicle. Always drive at speeds which are suited to the road condi­
tions -risk of crash. •
Energy management
Starting ability is optimized
Energy management controls the distribution of electrical
energy and thus optimizes the availability of electrical
energy for starting the engine .
If a vehicle with a conventional energy system is not driven for a
long period of time , the battery is discharged by idling current
consumers (e.g . immobilizer) . In certain circumstances it can result
in there being insufficient energy available to start the engine.
Intelligent energy management in your vehicle handles the distribu ­
tion of electrical energy. Starting ability is markedly improved and
the life of the battery is extended.
Basically, energy management consists of
battery diagnosis, idling
current management
and dynamic energy management .
Battery diagnosis
Battery diagnosis continuously determines the state of the battery.
Sensors determine battery voltage, battery current and battery
temperature. This determines the current state of charge and the
power of the battery.
Idling current management
Idling current management reduces energy consumption while the
vehicle is standing . With the ignition switched off, it controls the
energy supply to the various electrical components. Data from
battery diagnosis is considered.
Controls and equip­ ment Safety first Vehicle operation
Intelligent technology
Depending
on the battery's state of charge, individual consumers
are gradually turned off to prevent excessive discharge of the
battery and thus maintain starting capability.
Dynamic energy management
While the vehicle is being driven, dynamic energy management
distributes the energy generated according to the needs of the indi­
vidual components. It regulates consumption, so that more elec­
trical energy is not being used than is being generated and ensures
an optimal state of charge for the battery.
[ i] Tips
• But even energy management cannot negate the limits of
physics. Consider that the power and life of a battery are limited.
• If starting ability is threatened, you are informed by a warning
~ page 242, "Driver notification in the instrument cluster
display". •
What you should know
The highest priority is given to maintaining starting capa­
bility.
The battery is severely taxed in short-distance driving, in city traffic
and during the cold time of year. Abundant electrical energy is
required, but only a little is generated. It is also critical if the engine
is not running and electrical components are turned on. In this
instance energy is being consumed but none is being generated.
It is in precisely these situations that you will notice energy manage ­
ment actively regulating the distribution of energy.
Vehicle stands for an extended period
If you do not drive your vehicle over a period of several days or
weeks, electrical components are gradually cut back or switched off.
This reduces energy consumption and maintains starting capability
over a longer period.
Vehicle care Do-it-yourself service Technical data

llffl __ ln_ t _e_ ll-'"ig ...,_ e_ n_t _t_ e_ c_ h _ n_o _ l_o _,.g= y,_ __________________________________________ _
Take into consideration that when you unlock your vehicle, some
convenience functions, such as the remote key or power seat
adjustment, may not be available. The convenience functions will be
available again when you turn on the ignition and start the engine.
With the engine turned off
If you listen to the radio, for example, with the engine turned off or
use other MMI functions, the battery is being discharged .
If starting capability is jeopardized due to energy consumption, the
following warning appears in the MMI display :
Please start engine, otherwise system will switch off in
3 minutes.
The warning indicates that the system will be turned off automati­
cally after 3 minutes. If you wish to continue using the functions,
you have to start the engine .
With the engine running
Although electrical energy is generated when the vehicle is being
driven, the battery can become discharged. This happens mostly
when little energy is being generated and a great deal consumed and the battery's state of charge is not optimal.
To bring the energy balance back into equilibrium, consumers
which require especially large amounts of energy are temporarily
cut back or switched off. Heating systems in particular require a
great deal of energy. If you notice, for example, that the heated
seats* or the heated rear window are not heating, they have been
temporarily cut back or switched off. These systems will be available
again as soon as the energy balance has been restored.
You will also notice that engine idle speed has been increased
slightly . This is normal and not a cause for concern. By increasing
engine idle speed the additional energy required is generated and
the battery is charged.
Driver not ification in the instrument cluster
d isplay
If battery power drops into the range where it can limit the ability of
the engine to start, this is shown in the instrument cluster display
with the following driver message:
'-' Low battery charge: battery will be charged while driving
This notification reminds you that the starting capability of the
engine may be limited. As soon as you start driving again, the
battery will be recharged and the notification will go out.
Driver notification appears and goes out again
If this driver notification appears after the ignition is turned on or
while driving and it goes out again after a while, the battery has
been adequately recharged.
Driver notification appears and does not go out again
If this driver notification appears after the ignition is turned on or
while driving and does not go out again, the battery's state of
charge is not in the optimal range . Starting ability is restricted . Have
the battery checked as soon as possible by an authorized Audi
dealer or qualified workshop. •

The amount of oil used is related to engine load and speed .
It is normal for the oil consumption of a new engine to reach its
lowest va lue after a certain mileage has been driven.
You must drive your vehicle about 3,000 mi les (5,000 kilometers)
before you can properly assess oil consumption.
This also applies to fuel consumption and engine output.
0 Note
• Have your vehicle maintained properly and in accordance with
the service recommendations in your Warranty
& Maintenance
booklet. Lack of proper maintenance as well as improper use of the
vehic le wi ll impair the function of the emission control system and
cou ld lead to damage.
• Do not alter or remove any component of the Emiss ion Contro l
System unless approved by the manufacturer.
• Do not alter or remove any device, such as hea t shields,
switches, ignition wires, valves, which are designed to protect your
vehicle's Emission Control System and other important vehicle
components. •
Fewer short trips
~-----------------
Fu e I consumptio n will always be relat ively high on short
tri ps.
- Try to avo id driving s hor t distan ces wit h a cold engine.
The engine and catalytic converter have to reach their optimal oper­
ating t emper ature
to reduce fuel consumption and noxious emis­
sions effective ly .
Just after starting, a cold engine in a mid-size car only achieves a
fue l economy of 6 -8 miles per gallon (30 -40 1/100 km). After about a
half a mile, fuel economy climbs to 12 mpg (201/100 kml. After about
2.5 miles (4 km), the engine is at its proper operating temperature
Controls and equip­
ment Safety first Vehicle operation
Dri
ving and environm ent
and fuel economy has reached a normal level. So you can see that
you sh ould avoid short trips whenever possib le .
The
o ut side t emper atu re is also critical in this regard. Your car
consumes more fuel in the winter than in the summer .•
Vehicle care Do-it-yourself service Technical data