2009 AUDI S4 CABRIOLET ECO mode

Warm and cold -------------------------------.J
Switching between Fahrenheit and
Centigrade
You can change the temperature display from °F (Fahren­
heit) to
°C (Centigrade) and vice versa.
- Press and hold[~] and press the p lus button on the
driver's s ide temperature switch =>
page 111, fig. 130. •
Air recirculation [ <8?)
The air recirculation prevents exhaust fumes or other
pollution from entering the vehicle.
Switching on th e air re cir culation
- Press[ ~]=> page 777,fig.130 =>&
Switching off the air recirculation
- Press~ again, or
- press (AUTO], or
press[ @].
In the air recirculation mode , the air in the passenger compar tment
is recircula ted to p revent exhaust fumes and other pollution from
entering the vehicle . We recommend that you use the manua l air
recircula tion under the following conditions :
• when driving through tunnels
• in a traffic jam .
& WARNING
Do not use this setting for extended period s of time . The windo ws
c o uld fog up since no fresh air ca n enter the veh icle . If th e
Controls and equip ­
ment
& WAR NING (c onti nued)
wind ows fog up, pre ss th e air r ecirculat ion butt on a gai n immed i­
atel y to s witch off the air re circula tion function or sel ect defro st. •
ECON [ECO N]
Using ECON helps save fuel
-Press [ECON] to switch on=> page 111 , fig. 130 .
- Press [ECON] o r pre ss [AUTO] to switch off.
In ECON mode the air condit ioner is shut off and heating and venti­
lation are automat ically controlled. "ECON" translates "Economy"
s ince driving with the air conditioning compressor
disengaged
improves your mileage noticeably.
When operating in ECO N mode make sure the temperature inside
the vehicle is not lower than the outside temperature. The air is
neither cooled nor dehumidified, so there is a risk that the windows
can fog up. •
Switching the air conditioning on and off [ OFF ]
Switching the air conditioning off
- Press [ OFF] to tu rn the air condit ioner off a nd block
o utside a ir from entering the vehicle .
Switching the air conditioning on
- Press [ OFF] aga in (indicator light comes on aga in), or
- Press [AUTO], or
- Press one of the following butto ns: [ {)' ], [@ ]or
I -0, ].

• .___w __ a _r _m _ a _n_d_ c_ o _ ld __________________________________________________ _
Moreover, the air conditioning switches on again whenever you
press the fan speed or temperature buttons.•
Automatic air recirculation [~I
If outside air is polluted, an air quality sensor in the
vehicle will automatically s witch on the air recirculation .
Switching on air recirculation
-Press [~ J:::::, page 777,fig.130.
Switching off air recir culation
Press~ again, or
- press [AUTO J, or
- press[ ~).
The automat ic air recirculat ion mode should nor mally be left
switched on at a ll times.
The system is ready to operate approximately 30 seconds afte r yo u
turn on the ignition or start the vehicle. Fresh air enters the vehicle only during this initialization period .
I f the
air quality sensor in the air conditioning sys tem detects
exhaust fumes in the outside air, the control unit wil l either pass the
incoming a ir through the pol lution filter, or automatically switch on
the air recirculation .
The air conditioning syste m wi ll aut omatically swi tch o n the ai r
recirculation if it senses that the outside air is very po lluted. At the
same time, it wil l not al low any outside air to ente r the vehic le until
the a ir quality has improved .
T he air recircula tion operates for a maximum of
12 minutes. If the
w indows s tart to fog up whi le the air rec ircula tion is on, press[@!.
Under certain operating conditions (for example, if 1@1 or
[ci;;,, I are
pressed) the air recircu lation automatically switches off . If "ECON" is pressed, or if the temperature is below
-8 °C, the air recirculation
will operate on ly for
12 sec onds. •
Adjusting the fan speed 8 0
The automaticall y selected fan speed can be increased or
de crease d.
D
D
=
D
:c
"' "'
D
D
F ig . 131 Fa n speed
butt ons a nd di splay
ind ication
Press the 8 or G buttons in the center of the co ntrol
panel :::::, fig. 13 1 to adjust the fan speed to your comfort.
The air conditioning system automatical ly regulates the fan speed
in respo nse to the i nterior temperature . However, you can a ls o
adjust the fan speed manually . A line of sma ll bars in the center
display above the fan control but tons will retreat or ex tend to reflect
your adjustments to the fan speed .•
Air distribution
The aut omatically pr ogr am med air dis tribution ca n be
c ha nged m anu ally.
You can use the [ 0 I, (@ ] or [-0- J buttons separately or together in
combina tion . To swi tch back to the au tomatic air distribution
setting, either switch off the buttons you previously selected, or
press
[ AUTO J.

• .___O_ n_ t_h _e _ r_o _a_ d __________________________________________________ _
Starting and stopping the engine
Starting the engine
The engine can only be started with your original Audi
key.
- Set the parking brake.
- Move the selector lever to the neutral position (automatic
transmission: selector lever in P or N)
=> &.
- On vehicles with manual transmission, fully depress the
clutch pedal.
- Turn the ignition key to position
0 => page 119, fig. 136
- do not depress the gas pedal when starting the engine!
- Let go of the key as soon as the engine starts.
A cold engine may at first be loud after it has been started. This is
due to the hydraulic valves building up the oil pressure. This normal
and no need for concern.
If the engine does not start immediately, stop trying after 10
seconds and then try to restart the engine about 30 seconds later.
What to do if the engine does not start
• ~ page 304, "Starting with jumper cables"
• ~ page 306, "Emergency towing with commercial tow truck".
& WARNING
Never start or let the engine run in a confined or enclosed area .
Exhaust fumes from the engine contain carbon monoxide, a color­
less and odorless gas. Carbon monoxide can be fatal if inhaled.
• Never leave the engine idling unattended. An unattended
vehicle with a running engine poses a danger of personal injury or
theft.
0 Note
• Avoid high engine speeds, fast acceleration or heavy engine
loads while the engine is still cold. This could damage the engine.
• The engine cannot be started by pushing or towing the vehicle.
~ For the sake of the environment
To avoid unnecessary engine wear and to reduce exhaust emis­
sions, do not let your vehicle stand and warm up. Be ready to drive
off immediately after starting your vehicle. Maintain moderate
speed until the engine is completely warm. Remember, the engine
performs best at operating temperature.•
Stopping the engine
- Turn the ignition key to position (D => page 119, fig. 136.
& WARNING
• Never turn off the engine until the vehicle has come to a
complete stop.
• The brake booster and servotronic only work when the engine
is running . With the ignition turned off, you have to apply more
force when steering or braking. Since you cannot steer and stop
normally, this can lead to accidents and serious injuries.
• The radiator fan can continue to run for up to 10 minutes even
after you have turned off the engine and removed the ignition key.
The radiator fan can also turn on again if the engine coolant heats
up because of intense sunlight or heat build-up
in the engine
compartment. _,.

___________________________________________________ H_ o_m_ e_ L_ i_ n _ k_ ® ____ l'III
HomeLink®
Universal remote control
Ap plies to vehicles : with Home link ® unive rsa l remote cont ro l
General information
The Homelink® fea ture c an le arn u p to thr ee r ad io
frequency codes for mos t cu rrent transmi tters used for
operating gar age doors, es tate gates, home or ou tdoor
ligh tin g sy stems, an d other de vices .
You m ust first pr ogra m the Hom eLin k® trans mitte r befo re y ou can
use the system=> page 140, "Programm ing the HomeLink® tra ns­
mi tter".
I n ord er to program the HomeLink® tra nsmitter fo r devices uti lizing
ro lling code, a second person on a ladder who can safe ly reach the
gara ge doo r ope ner moto r is r eco mmended. It is also necessa ry to
locate the "learn" button on your garage door opener motor . Refer
t o th e ope rati ng in stru ction s f or the opener, as the loca tion and
color of th is button may vary b y manufacturer.
Yo u ca n st ill u se the origina l re mote cont ro l f or the device a t any
tim e.
& WARNING
• Never use the Homelink'"' transmitter with any garage door
opener that does have not the safety stop and reverse feature as
required by federal safety standards . This includes any garage
door opener model manufactured before April 1 , 1982 .
• A garage door opener whi ch cannot detect an object , signaling
the door to stop and reverse does not meet current federal safety standards . Using a garage door opener without these features
increases risk of serious injury or death .
Controls and equip ­
ment
& WARNING (continued)
• For safety reasons never release the parking brake or start the
engine while anyone is standing in front of the vehicle .
• A garage door or an estate gate may sometimes be set
in
motion when the Homelink ® remote control is being
programmed . If the device is repeatedly activated , this can over ­
strain motor and damage its electrical components -an over­
heated motor is a fire hazard!
• To avoid possible injuries or property damage , please always
make absolutely certain that no persons or objects are located in
the range of motion of any equipment being operated.
[ i ] Tips
• If you wou ld lik e m ore informa tion on H om eli nk®, wh ere to
purchase the HomeLink ® compatib le products, or would lik e to
p urc h ase the H omeLink® Hom e Ligh ting Package , p lease ca ll to ll­
fre e: 1- 80 0-355 -3515.
• Fo r D ec lara tion of Co mplian ce to Unite d S tate s FCC and I ndustry
C anada regulat ions => page
320 . •

• .___H_ o_m _ e_ L_ i_ n _k_ ®_R __________________________________________________ _
App lies to vehicles: w ith Homelin k® un ive rsal remote contro l
Programmi ng th e Hom eLink ® transmitt er
The transmitter is programmed in two phases. For rolling
code transmitters, a third phase is also necessary .
Fig. 151 Overhead
console : Homelink®
keypad
Fig.152 Frontbumper,
driver side: location of
transmitter unit
Phase 1: programming the overhead keypad
1. Make sure your vehicle is w ithin operat ing range o f the
remote controlled garage door opener .
2. Set the parking brake=>
& in "General information" on
page 139.
3. Turn the ignit ion on. Do not sta rt the engine! 4. Press and ho
ld the two outside Homelink® buttons
(D
and @for app roximately 20 seconds until indicator
light ©=:> fig.
151 beg ins to flash. Then release both
buttons . Do not hold the buttons for longer than
30
seconds.
This procedure only needs to be performed
once. It
erases the factory-set default codes and does not have to
be repeated to program additional remote controls.
5. Press and hold the Homelink ® button (D, ® or @ until
the indicator light © starts flashing
slowly. Release the
button.
- The system will remain in programming mode for 5
minutes.
Go to the front of the v ehicle and proceed w ith
phase 2.
Phase 2:
programming the bumper mounted transmitter
6. Hold the original remote control at a distance between 0-
6 in. (0-15 cm) from the b umper below the appropriate
headlight for your vehicle => fig.
152 (use the shortest
distance possible) .
7. Aim the remote control just below the
driver side head­
lig ht.
8. Press and hold the act ivation button on the remote
control.
- May be different in Canada . If so, press and re-press
(cycle) the activation button on your remote control every
two seconds. -.,

• .___H_ o_m_ e_ L_ · _,n _k_ ® __________________________________________________ _
- Press the appropriate programmed button 0,@ or@
to activate the desired remote control function~
& in
"General information" on
page 139. •
Applies to vehicles: with Homelink® universal remote contro l
Reprogramming a single button
A HomeLink® button can be reprogrammed individually without affecting the other button a/locations.
Programming the overhead keypad
- Press the appropriate Homelink® button until the indi­
cator light begins flashing slowly.
Programming the bumper mounted transmitter 1. Hold t he
original remote control at a distance between 0-
5 in. (0-13 cm) from the bumper below the appropriate
headlight for your vehicle (use the shortest distance
possible).
2. Aim the remote control just below the
driver side head­
light.
3. Press and hold the activation button on the remote control.
4. The emergency flashers will flash
three times (after
about
15-60 seconds) when the programming is
successful. Now release the button on the remote
control.
- If the device utilizes a rolling code, please follow phase 3
of ~
page 140, "Programming the Homelink® trans­
mitter" for rolling code programming.
This procedure will cause the existing programming on the
Homelink ® button to be erased! •
App lies to vehicles: with Homelink® unive rsa l remote contro l
Erasing the programming of the Homelink ®
transmitter
When you erase the programming, the programming on
all three of the transmitter channels with be lost!
- Perform steps 1 to 4 as described on~ page 140, "Phase
1: programming the overhead keypad".
When completed , the Homelink® system will be in the prog ram­
ming mode and is then ready to learn the codes for remote
controlled devices.
[I) Tips
• Programmed buttons cannot be erased individually.
• For security reasons you are advised to erase the programming
of the Homelink ® system befo re you sell your vehicle.•

__________________________________________________ A_ i_ r _b _a...; g::- s_ y=--- s_t _e _m ___ lffllll
& WARNING (continued )
• Always make sure that the side airbag can inflate without inter­
ference :
- Never install seat covers or replacement upholstery over the
front seatbacks that have not been specifically approved by
Audi.
- Never use additional seat cushions that cover the areas
where the side airbags inflate.
- Damage to the original seat covers or to the seam in the area
of the side airbag module must always be repaired immedi ­
ately by an authorized Audi dealer.
• The airbag system can be activated only once. After an airbag
has inflated, it must be replaced by an authorized Audi dealer or
qualified technician who has the technical information , training
and special equipment nece ssary.
• The airbag system can be deployed only once . After an airbag
has been deployed , it must be replaced with new replacement
part s designed and approved especially for your Audi model
version. Replacement of complete a irbag systems or airbag
components must be performed by qualified workshops only .
Make sure that any airbag service action is entered in your Audi
Warranty
& Maintenance booklet under AIRBAG REPLACEMENT
RECORD .
• In accidents when an airbag is deployed , the vehicle battery
s eparates the alternator and the starter from the vehicle electrical
system for safety reasons with a pyrotechnic circuit interrupter.
-Work on the pyrotechnic circuit interrupter must only be
performed by a qualified dealer -risk of an accident !
- If the vehi cle or the circuit interrupter is scrapped , all appli ­
cable safety precautions must be followed . •
Controls and equip­ ment Safety first
Vehicle operation
Other things that can affect Advanced Airbag
performance
Changing the vehicle 's suspension system can cha nge the way that
the Advanc ed Ai rbag Syste m perfor ms in a cras h. Fo r ex amp le,
u sing tire -rim combinations not a pproved by Audi, lowering the
ve hicle , c hang ing the st iffness o f the suspe nsion, inclu din g the
spr ings, s uspension struts, shock absorbers etc. can change the
fo rc es that ar e meas ured by th e a irbag sens ors and sent to the e lec ­
tronic control un it. Some suspens ion changes can, for example,
in crea se th e fo rc e leve ls meas ured by th e se nsors and ma ke t he
airbag system dep loy in crash es in wh ich it wou ld not dep loy if the
c h anges had no t been m ade . Ot her k in ds of cha nge s m ay red uce
the fo rce levels measured by the sensors and p revent t he airba g
fr om depl oyin g whe n it should.
T he sensors in the safe ty b elt b uckle fo r the driver a nd front
passenger seat te ll the electronic control module if the safety belt is
l a tc h e d or not. If the s afe ty be lt is bei ng use d, t he fr ont ai rbag w ill
dep loy at a s lightly higher rate of vehic le dece leration than if the
sa fe ty belt is not be ing used . T here for e, in a partic ular co lli sion , it is
possible t hat an airbag will not dep loy at a seating position w here
the safe ty belt is b ein g us ed b ut will infl ate a t th e po siti on w here the
safety belt is not being used. It is important that nothi ng interfere
with the safety belt b uck les so that the sensors can send the correct
i nformat ion about safety b elt use to the electronic control un it.
& WARNING
Changing the vehicle's suspension including use of unapproved
tire -rim combinations can change Advanced Airbag performance
and increase the risk of serious personal injury in a crash.
• Never install suspension components that do not have the
same performance characteristics as the components originally
installed on your vehicle .
• Never use tire-r im combinations that have not been approved
by Audi. .,.
Vehicle care Do-it-yourself service Technical data

-Child Safety ____ .:....__ __________________________ _
restraints and for the different models of the same kind of child
restraint offered by child restraint manufacturers.
The weight ranges for the individual types, makes and models of child restraints that the NHTSA has specified in the Safety Standard
together with the weight ranges of typical infants and typical 1 year­
old child have been stored in the control unit of the Advanced
Airbag System. When a child restraint is being used on the front passenger seat with a typical 1 year-old child, the Advanced Airbag
System compares the weight measured by the weight sensing mat
with the information stored in the electronic control unit.
The electronic control unit also registers the tension on the front
passenger safety belt. The tension on the safety belt for the front
passenger seat will be different for an adult who is properly using
the safety belt as compared to the tension on the belt when it is used to attach a child restraint to the seat. The sensor below the
latch for the safety belt for the front seat passenger measures the
tension on the belt . The input from this sensor is then used with the
weight to "decide", whether there is a child restraint with a typical 1
year-old child on the front passenger seat and whether or not the airbag must be turned off.•
Child restraints and Advanced Airbags
Regardless of the child restraint that you use, make sure that it has
been certified to meet United States Federal Motor Vehicle Safety
Standards and has been certified by its manufacturer for use with
an airbag. Always be sure that the child restraint is properly
installed at one of the rear seating positions. If in exceptional
circumstances you must use it on the front passenger seat, carefully read all of the information on child safety and Advanced Airbags
and heed all of the applicable WARNINGS. Make certain that the
child restraint is correctly recognized by the weight -sensing mat
inside the front passenger seat, that the front passenger airbag is
turned off and that the airbag status is always correctly signaled by
the
PASSENGER AIR BAG OFF light. Many types and models of child restraints have been available over
the years, new models are introduced regularly incorporating new
and improved designs and older models are taken out of produc­
tion. Child restraints are not standardized. Child restraints of the
same type typically have different weights and sizes and different
'footprints,' the size and shape of the bottom of the child restraint
that sits on the seat, when they are installed on a vehicle seat. These
differences make it virtually impossible to certify compliance with
the requirements for advanced airbags with each and every child
restraint that has ever been sold in the past or will be sold over the
course of the useful life of your vehicle.
For this reason, the United States National Highway Traffic Safety
Administration has published a list of specific type, makes and
models of child restraints that must be used to certify compliance
of the Advanced Airbag System in your vehicle with the suppression
requirements of Federal Motor Vehicle Safety Standard 208. These
child restraints are:
A. Car beds, manufactured on or after September 1,
2004:
• Cosco Dream Ride 02-719
B. Rear facing child restraint systems, manufactured
on or after September 1, 2004:
(When the restraint system comes equipped with a removable base,
compliance has to be certified with or without the basel.
• Britax Handle with Care 191
• Century Assura 4553
• Century Smart Fit 4543
• Cosco Arriva 02727
• Evenflo Discovery Adjust Right 212
• Evenflo First Choice 204
• Graco Infant 8457