2009 AUDI A4 CABRIOLET engine

_______________________________________________________ T_ r _a_ n_s_ m __ is_ s_ io_ n _ ___,_
Swi tching to m anual shift pro gra m
- With the selector lever in D, push lever to the right. The
display will show7
6 5 4 3 21 as soon as the selector lever
is switched over. The gear you select wi ll also be h igh­
lighted in the display:::::,
page 136, fig. 149 .
To up shift
Push the selecto r lever forward to the plus position
:::::, page 136, fig. 148 G) .
To d ownshift
- Pu sh the lever to the mi nus positio n Q.
When accelerating, the transmission wi II a utomatica I ly shift into the
next higher gear before the engine reaches the maximum RPM .
When accelerating, if you apply a light throttle, the tiptronic® wil l
automatically shift into the next higher gear to save fuel. If you app ly
a heavy throttle, the transmission will stay in gear engaged until
near maximum RPM are reached, or until the driver manually shifts
into a higher gear .
If you take your foot off the accelerator peda l when driving down a
steep incline, the tiptronic ® wi ll downshift from the selected gear
into the next lower gear based on road speed and engine RPM . The
automatic downshifting is interrupted as soon as you apply throttle
again .
[ i ] Tips
• When you shift into the next lower gear, the engine will down ­
shift only when there is no possibility of over-revving.
• When the kick -down comes on, the transmission wi ll sh ift down
to a lower gear depending on vehicle and engine speeds.
• The tiptronic® is inoperative when the transmission is in the fai l­
safe mode .•
Contro ls and eq uip­
ment
Ap plies to vehicles : w it h mu ltit ron ic® Co nti nuou sly V ariable Transmi ssion ( CVT)
Steering vvheel vvith t iptronic ®
The shift buttons on the steering wheel allow the driver to
shift gears manually.
F ig. 15 0 Stee ring
w he el: S hift b utto ns
To downshift, touch the button on the left Q .
To upshift , touch the button on the r ight G) .
The shif t buttons are activated when the selector lever is in D, S or
in the manual shift program (tiptronic).
Of course, you can continue to use the manual shift program with
the selector lever on the center console. •
Applies to vehicles : wi th mu lt itro nic® Co nti nuously Var iab le Tra nsmis sion (CVT)
Fail -safe mode
If the multitronic® suffers a malfunction the fail-safe
mode maintains minimum driveability.
In the event of particular system malfunctions, the automatic trans ­
mission switches to the fai l-safe mode. This is signal led by all the
segments in the display illuminating or going out . _,,,
~ehicle care irechnical data

___________________________________________________ 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. -.,

___ S_a_ f_ e_ t-= y_ b_e_ l_ t _s _______________________________________________ _
- Make sure that your passengers also buckle up and prop­
er ly wea r th eir sa fe ty be lts.
Protect your children with a child restraint system appro ­
pria te for t he size and age o f the children.
The warning light~ in the instrument cluster lights up when the
ignition is switched on as a reminder to fasten the safety belts. In
addition, you will hear a warning sound.
After the ignition is switched on, the warning tone will come on for about 6 seconds a long w ith a-~ warning light in the instru ment
cluster if the driver has not fastened his safety belt . As soon as the
driver has fastened his safety belt, the warning tone will stop and
the warning light will go out .
I f the driver has not buckled -up within about 24 seconds after the
warn ing tone has stopped, the warn ing tone will sound again for
about 6 seconds. The warning tone will sound repeated ly for about
6 seconds at 24 second intervals unti l the driver has buckled-up . The
safety belt warning system is active for about 5 minutes and during
this time the wa rning light in the instrument c luster will stay on.
Fa sten you r safety belt no w and make sure that your pa ssengers
also properl y put on the ir saf ety belts. •
Why safety belts?
Frontal collisions and the law of physics
Frontal crashes create ve ry strong forces for pe ople ri ding
in vehicles.
Fig . 16 2 Unbel ted
occ upants in a ve hicle
h ead in g fo r a wall
F ig . 16 3 T he vehi cle
c ras he s in to t he wa ll
The physica l principles are simple. Both the vehicle and the passen­
gers possess energy which varies with vehicle speed and body
we ight . Engineers call this energy "kinetic energy ."
The higher the speed of the vehicle and the greater the vehicle's
we ight, the mo re energy that has to be "absorbed" in the crash .
Vehicle speed is the most significant factor. If the speed doub les
from 15 to 30 mph (25 to 50 km/h), the energy increases 4 times!
~

--~S~a ~f ~e ~t l'.y ...: b~ e~lt =:s!._ _____________________________________________ _
Safety belts protect
People think it's possible to use the hands to brace the
body in a minor collision . It's simply not true!
Fig . 166 Dri ver is
co rrec tly r est rai ned i n
a s ud den braking
man euv er
Safety belts used properly can make a big difference . Safety belts
help to keep passengers in their seats, gradually reduce energy levels app lied to the body in an accident, and help prevent the
uncontrolled movement that can cause serious injuries . In addition,
safety be lts reduce the danger of being thrown out of the vehic le.
Safety belts attach passengers to the car and give them the benefit
of being s lowed down more gently or "sof tly" through the "give" in
the safety belts, crush zones and other safety features engineered
into today's vehicles. By "absorbing" the kinetic energy
over a
longer period of time, the safety belts make the forces on the body
more "tolerable" and less likely to cause injury.
Although these examples are based on a frontal co llision, safety
belts can a lso substantially reduce the risk of injury in other kinds
of crashes. So, whether you're on a long tr ip or just going to t he
corner store, always buckle up and make sure others do, too. Acci ­
dent statistics show that vehic le occupants properly wearing safety
belts have a lower risk of being injured and a much better chance of
s u rviv ing an acc ident. Proper ly using safety belts also great ly
increases the abi lity of the supplementa l airbags to do their job in a
coll ision. For this reason, wearing a safety be lt is legally required in
most countries including much of the United States and Canada . Although your Audi is equipped with airbags, you sti
ll have to wear
t he safety belts provid ed. Fron t airbags, for example, are activated
only in some frontal collisions. The front airbags are not activated in
a ll frontal co llisions, in side and rear collisions, in ro ll
ove rs or in
cases where there is not enough dece leration through impact to the
front of the vehicle. The same goes for the other ai rbag systems in
your Audi. So, a lways wear your safety belt and make sure
eve ry­
body in your vehic le is properly restrained! •
Important safety Instructions about safety
belts
Safety belts must always be correctly positioned across
the strongest bones of your body.
Always wear safety belts as illustrated and described in
this cha pte r.
Make s ure tha t your sa fe ty belts ar e always ready for us e
and are not damaged .
& WARNING
Not wearing safety belts or wearing them improperl y increases
the risk of serious per sonal injury and death . Safety belt s can w ork
only when used corre ctl y.
• Alway s fa sten yo ur safety belt s correctl y before driving off and
make sure all pa ssenger s are properl y restrained .
• For m aximum protection , safet y belts must alw ays be po si­
tion ed corre ctly on the body .
• Never strap mo re than one person , including sm all children ,
into any single safety belt.
• Never pla ce a s afety belt ove r a child sitting on your lap .
• Alway s ke ep feet in the footwell in front of the seat while the
vehicle is being dr iven .
~

-In
te llig ent tec hnolo gy --=---=-=-------------
Intelligent technology
Notice about data recorded by
vehicle control modules
Your vehicle is not equipped with an Event Data Recorder (EDRl,
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 retrieva l 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 examp le, engine function, emission control, as
we ll as for the airbags and safety belts.
T hese electronic control modules also record vehic le-rela ted da ta
during norma l ve hicle operation for diagnost ic 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 we ll 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 s tability.
I
A F ig . 19 0 Cen ter
co nsol e w ith ESP
sw itch
ESP is designed to he lp you maintain vehic le control in situa tions
where the car approaches the limits of "grip", especially when acce lerating and cornering . ESP reduces the risk of skidding and
improves stability under all road conditions .
The syst em opera tes across the en tire speed range in combination
with the ABS system. If the Anti-Lock Brake System (ABS) malfunc ­
tions, the ESP wil l a lso shut down .
How th e sys te m work s
The Anti-Lock Brake System (ABS) , E lectronic Differential Lock (EDU
and the Anti -Sl ip Regu lation System (ASR) are integrated in the e lec­
tronic stabi li z ation program. In addition to the data provided by
these functions, the ESP control unit requires additional measure­ ment data provided by high performance sensors . T he rotational
speed of the vehic le about its ver tica l axis, t he late ral acce leration
acting on the vehic le, the brake pressure and the steering ang le are
a ll measured .

The direction in which the driver wishes to travel is determined with
the aid of the steering angle and vehicle 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 laning on a
wet road -, ESP will automatical ly brake the appropriate wheel to
correct the problem.
The veh icle is then stabi lized by the forces act ing on the whee l
during braking. If the vehicle is oversteering (rear tends to skid out
of the turn), the brakes are mainly 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 brakes are applied at the
rear wheel that is on the inside of the curve . An acoustic signal indi­
cates when ESP brake application cuts in =>
&.
The system operates across the entire speed range in combinat ion
with the ABS system => page 216 . If the Anti -Lock Brake System
(ABS) malfunctions, the ESP wi ll be out of act ion as well.
Activa tion
When you turn on the engine, ESP w ill automatica lly be activated
and will perform a self -test .
The system can be activated o r deactivated by pressing the butto n
=> page 212, fig . 190 . The warning light comes on when the system
is switched off .
Normally, the ESP should a lways be on, however, it may be advanta­
geous to turn off the system in certain specia l cases when some
degree o f wheel spin is desired such as :
• when driving with snow chains
• when driving in deep snow or on a loose surface (to allow the
whee ls to dig in to reach firm ground)
• when trying to "rock" the vehicle free whe n it has become stuck .
The system shou ld be reactivated once you are no longer in such
situations.
Both , the ABS and EDL systems are still functioning even if the ESP
is switched off .
Controls and equip­
ment Safety first Vehicle operation
Int
ellig ent tec hnol ogy
& WARNING
The Ele ctron ic Stab ilization Program is neve rth ele ss s ubje ct to th e
law s of phy sic s. It is p art icularly important to pay at tent ion to thi s
f ac t on wet and slipper y ro ad s. It i s therefore important th at yo u
alway s adapt your driving to the condition of the road and traffic
c onditio ns. Do not allo w the in crea sed safety prov ided by t he Ele c­
tronic Stabilization Program sy stem to lull you into a ccepting
addition al safety ri sk s.
• Plea se note that when ESP i s deactivated , the drive wheel s can
s pin on icy and slippery ro ads a nd the vehi cle can break away -
d anger of skidding ! C
E lectronic differential lock CEDL)
The electronic differential lock monitors the rotational
speed of the drive wheels.
Gener al notes
The electronic differential lock (EDU helps the car to start moving,
accelerate and c limb a gradien t on surfaces providing poor or
a lmost no grip . Without EDL, this would be difficult , if not impos ­
sible.
How the syst em works
The EDL operates automat ical ly . It monito rs the rotationa l speed of
the drive whee ls on an axle with the he lp of the ABS sensors
=> page 216 . If a noticeable difference in rotational speed between
the drive wheels on one axle is de tected (e.g. on slippery grou nd on
one side), the spinning wheel is braked, thereby transferring power
to the other drive wheel or wheels (a ll -whee l drive) . This is done up
to a speed of about 60 mph ( 100 km/h). Noises from the brake
system signal that wheel spin is being control led.
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Vehicle care Do-it-yourself service Technical data

___ ln_ te_ ll..,,ig ..,_ e_ n_t _t_ e_ c_ h _ n_o _ l_o _,.g= y,_ __________________________________________ _
Driving off
When driving off, always be sure to keep road conditions in mind as
you accelerate. If one drive wheel spins because it is on a surface
with less grip, gradually increase the pressure on the accelerator
pedal until the car starts to move. The wheel less able to transfer
power spins.
Overheating of brakes
To prevent the disc brake of the braked wheel from overheating if
subjected to excessive loads, the EDL cuts out temporarily. The
vehicle remains operational and behaves in the same way as a
vehicle without EDL.
As soon as the brake has cooled down, EDL switches on again auto­ matically.
& WARNING
• When accelerating on slippery surfaces, such as on ice or snow,
always be careful when depressing the accelerator pedal. Even
with the EDL working, the drive wheels can spin and reduce your ability to control your car. -Risk of crash!
• The increased safety afforded by EDL does not mean that you
can take safety risks. Always adapt your driving style to the road
conditions and traffic situation.
[ i] Tips
If a fault occurs in the ABS, the EDL is also not functioning. This is
indicated by the ABS warning light=>
page 20. •
Anti-Slip Regulation System (ASR)
The Anti-Slip Regulation System prevents the driven
wheels from spinning when the car is accelerating.
General notes
The Anti-Slip Regulation System (ASR) is integrated in the electronic
stabilization program (ESP). When the vehicle starts up and acceler­
ates, the wheels are prevented from spinning by adjusting the
engine power to match the amount of grip available from the road
surface.
How the system works
ASR performs automatically, i.e. without the driver's intervention.
With the aid of the ABS sensors=>
page 276, ASR monitors the
speed of the driven wheels. If the wheels start to spin, the engine
power is reduced automatically until the tires find enough grip to
lock onto the road surface. The system is active across the entire
speed range.
Th e ASR works in conjunction with the ABS. If a malfunction should
occur in the ABS, the ASR will also be out of action.
& WARNING
The increased safety afforded by ASR does not mean that you can
take safety risks. Always adapt your driving style to the road
conditions and traffic situation.
[ i] Tips
To ensure that the ASR works properly, all four wheels must be fitted
with identical tires Any differences in rolling radius of the tires can
cause the system to reduce engine power when this is not desired.
S ee also =>
page 279, "New tires and replacing tires and wheels". •