airbag AUDI A4 CABRIOLET 2009 Owners Manual

Airbag system . . . . . . . . . . . . . . . . . 168 Trailer to\Ning . . . . . . . . . . . . . . . . . . 224
Important things to know . . . . . . . 168 Driv ing with a trailer . . . . . . . . . . . . 224
Front airbags . . . . . . . . . . . . . . . . . . 172 Trailer towing tips . . . . . . . . . . . . . . 226
Monitoring the Advanced Airbag
System . . . . . . . . . . . . . . . . . . . . . . .
179
Knee airbags . . . . . . . . . . . . . . . . . . 184
Side a irbags . . . . . . . • . . . . . . . . . . . 187
Child Safety . . . . . . . . . . . . . . . . . . . . 190
Impor tant things to know . ..... .
Child safety seats ............. .
Insta lling a chi ld safety seat .... . 190
195
200
Add it ional Information ....... .. . 203 Vehicle care . . . . . . . . . . . . . . . 229
Lower anchorages and tethe r for
children (LA TCH) . .. ... ... ... ... .
205 Cleaning and protection . . . . . . . 230
~----
t
Vehicle operation .... ... . 211
212
212
2 12
215
Intelligent
technology ... ... ... .
Notice about data recorded by
ve hicle contro l modules .. ..... .
Electronic Stabilization Program
(ESPJ . .... ... ......... ... ... .. .
B rak ing ..... ... .... .... ... ... .
Servotronic® -advanced power
steering system ............... .
Driving with your quattro® ..... .
Driving and environment .... . . 217
2
18
2 19
The first 1,000 miles (1,500 km) and
afterwards . . . . . . . . . . . . . . . . . . . .
21 9
Catalytic converter . . . . . . . . . . . . .
220
Avoid damaging the ve hicle . . . . . 221
Operate your vehicle economically
and minimize pollution . . . . . . . . .
221
General information ........... .
Care of exterior ................ .
Care of inte rior ...... .... ... ... .
Fue l supply and filling your fuel
tank ........................... .
Gasoline ........... ........... .
Fuel tank ..................... .
Checking and filling .. ... ...... .
Engine hood ......... ......... .
Engine compartment ...... ... . .
Engine oil ..................... .
Engine cooling system ......... .
Brake fluid ................ ... . .
Battery . ... ... ... ............. .
W indshield /headligh t washer
rese rvoir ...................... .
Tires and \Nheels .......... .... .
Tires ..... .. ..... ... .. - . -.. • · · ·
230
230
238
244
244
245
249
249
251
252
257
260
261
266
267
267
Table of contents
Do-it-yourself service ... 289
What do I do no\N? . . . . . . . . . . . . . 290
Trunk escape ha ndle . . . . . . . . . . . . 290
Jack, tools and spare wheel . . . . . . 290
Whee l change .............. .... 293
Fuses and bulbs . . . . . . . . . . . . . . . . 300
Fus es ................. ......... 300
Bulbs .......................... 302
Emergency situations . . . . . . . . . . 304
Genera l ... .. ... .... _ .. _ ...... .. 304
Starting by pushing or towing . . . . 304
Starting with jumper cables . . . . . . 304
Use of jumpe r cables . . . . . . . . . . . . 305
Em ergency towing with commercial
tow truck ... ......... ....... .. .
Lifting vehicle ................. .
Technical data
General information 306
308
311
312
Explanation
of technical data 312
Vehic le ide ntific ation . . . . . . . . . . . . 312
Weights ........................ 313
Dimensio ns . . . . . . . . . . . . . . . . . . . . 313
~ehicle care irechnical data

Instruments and controls
General illustration
G)
0
©
©
©
©
0
©
G)
Power window switches
Door handle
Power locking switch . ..... .. .... .... .... ...... .
Adjuster control for outside mirrors .............. .
Air outlets ...... .. ......... .... .. .. .... .. ..... .
Light switch .. ...... .... ...... .... ... .. .... ... .
Turn signal and high beam .. .... .... ..... ...... .
Instrument cluster ... ...... ... .. ..... ... .... ... .
Switches for
- Windshield wiper/washer ......... ...... ...... .
- Driver information display ........... .... ..... .
- Operation trip computer .. .... ... .... .... .. ... .
- Adjusting and storing the tire pressure" ........ .
@ Steering lock/ignition/starter switch ....... .... ... .
@ Depending on options :
@
@
@
@
@
@
@
@
@
@
@
-Electronic Stabi lization Program (ESP) switch .....
- Warning light for deactivated front passenger airbag
Emergency flasher . ...... ...... .... ... .. ... .... .
Storage compartment for sma ll objects
Sound System
Glove compartment ( lockable) . .... .... .... .... .. .
Front passenger airbag ........................ . .
Climate controls ........ ... .... .... .... .. ..... .
Rear window defogger switch .......... ..... ... .
Switch for seat heating . .... .. .... .. ... .. .... ... .
Ashtray .. ....... .... ... .... .... .... .... .... .. .
Se lector lever (automatic transmission) ....... ... . .
Parking brake lever ....... .. ... ... .. ...... .... . .
Controls and equip ­
ment
59
54
89
115
76
83
12
85
36,37
38
43
119
212
82
108
107
172
111
116
116
104
131
121
Instruments and controls
@ Cupholder ............ ...... ... .. .... ..... .. .. .
@ Power top switch .............................. .
@) Power outlet . .... ...... ... .. .... .... .... .... .. .
@ Memory buttons (driver seat) .. .... .... .... .... .. .
@ Release lever for the engine hood .............. .. .
@ Coming home/leaving home activation ...... ...... .
@ Cruise control .... .... .... .... ... ........ .... .. .
@ Steering wheel with :
- Horn
- Driver airbag .... .... .... ... .. ...... .... .... . .
@ Adjustable steering column ..................... .
[ i ] Tips
A separate brochure is provided for your factory-insta lled audio
system and/or the Audi Navigation System. •
104
61
106
101
249
80
123
172
118

Instruments and warning /indicator lights
• The service display information will remain intact even if the
battery is disconnected .
• If a priority 1 malfunction is detected (red symbol), you cannot
display the distance remaining. •
Reset button
The "0.0" button=> page 17, fig. 7 @ performs the following func­
tions :
Resetting the trip odometer
The upper odometer (trip odometer) => page 15 can be reset back to
zero by pressing the reset button.
Resetting the service interval
The service interva l display=> page 17 can be reset by pressing the
reset button (first select the "reset" mode in the service indicator
display). •
Warning /indicator lights
Overview
The warning/indicator lights indicate different functions
or a possible malfunction.
Fig. 8 Instrument clu ste r: complete set of warning /indi cator symbols (USA ­
models)
Your vehicle is equipped with several important warning and indi ­
cator lights to help you monitor the continued reliable operation of
your vehic le~
& -
AIR
BAG
USA models :
Malfunction Indicator lamp (MIU
Canada models:
Malfunction lndictor Lamp (MIU
Airbag sys tem
~ page 19
~ page 19
~ page20

Instruments and warning/indicator lights
Airbag system ~
This warning/indicator light monitors the airbag and the
tensioner systems.
The GA warning light illuminates for a few seconds each time you
switch on the ignition.
If the
ffl warning light does not go out, or if it illuminates while you
are driving, or if it starts to flash, then there is a malfunction some ­
where in the system. If the light does not illuminate when you
switch on the ignition, this also means there is a malfunction.
& WARNING
If you have a malfunction in the airbag system, contact your autho­
rized Audi dealer immediately. Otherwise the airbag or the belt
tensioner may not work properly in an accident. •
Tire pressure monitoring system -telltale
indicator lamp
D
The warning/indicator light appears in the event of a
significant loss of air pressure.
The warning/indicator light illuminates for a few seconds after
the ignition is turned on as function check and then goes out.
If the ( symbol appears, pressure is too low in at least one tire.
When the system detects a malfunction, the warning/indicator light
will flash for approximately one minute and then remain continu­
ously illuminated. This sequence will continue upon subsequent
vehicle starts up as long as the malfunction exists. Contact your
authorized Audi dealer and have the malfunction corrected.
For more information
=> page 43. •
Cruise control
CRUISE (USA models) / •0 (Canada models)
The CRU ISE warning/indicator light illuminates when the cruise
control is activated. •
Anti-lock brake system
(USA models) / (Canada models)
This warning/indicator light monitors the ABS and the
electronic differential lock (EDL).
The A S warning light will come on for a few seconds when the igni­
tion is switched on. The light will go out after an automatic check
sequence is completed.
There is a malfunction in the ABS when:
• the warning/indicator light does not illuminate when you switch
on the ignition.
• the warning/indicator light does not go out after a few seconds.
• the warning/indicator light illuminates while driving.
Without the electronic assistance of the ABS, the brake system will
still respond and brake the car. Have the brake system checked and
restored to its full performance by an authorized Audi dealer as
soon as possible.
For more information regarding the ABS see
=> page 216.
Since any malfunction of the ABS also affects the ESP, that system's
warning symbol.,
=> page 22 will light up along with the n /
(Canada models) warning light.
Unspecific malfunction in the brake system
If both the brake warning light=> page 23 and the c.., warning light
illuminate when the parking brake is released, the likely cause is a
serious malfunction in the brake system beyond an inoperative ABS
=> & . ~

& WARNING (co ntin u ed)
• Do n ot l ea ve c hildr en i ns ide th e vehicle un sup erv is ed. In an
e m erg en cy it w ould be impo ssible to op en the door s from the
out side without the key.
[ i ] Tip s
• In the event of a crash with airbag deployment all locked doors
wi ll be automat ically unlocked to give access to the vehicle occu­
pants from the outside.
• If the power locking system should fail, you can st ill open the
fue l tank flap in an emergency~
page 248.
• You are we ll advised not to keep va luables inside an unattended
vehic le, visible or not. Even a properly locked vehicle cannot provide
the security of a safe! •
Keyless entry remote control
General description
The remote controls allows you to:
• lock or un lock the vehicle
• selective ly un lock the rear lid.
The turn signals wi ll flash briefly whenever you lock or unlock the
vehic le . Also, the interior light will come on or go off whenever you
open or c lose the driver's door.
The transmitter and battery are located in the head of the remote
control. The receiver is located inside the vehicle. The maximum
effective range depends on severa l things. Remember, if the battery
is weak, the effective range decreases .
The remote -control key contains a fo ld-ou t key that you can use to
manual ly lock or unlock the vehicle and to start the engine .
Controls and eq uip­
ment
Op enin g and clo sing
If you need to replace the remote control, or if you need to have it
repaired, you must see your authorized Audi dealer. Only then can
you use the key again. •
Unlocking and locking the vehicle with the
remote control
How the remote control works.
To unlock the v ehicle m
- Press button @.
Fig. 40 Remo te
co ntr ol: fu nctio n
b utt ons
- Press button @two times within two seconds to unlock
all doors and the rear lid .
To lock the vehicle [II
-Press bu tton @ => &, in "Gener al descri ption" on
page 50.
- Watch that all turn signal lights flash once.
To unlo ck r ear lid only ,c::;
- Press button @for approx imate ly one second.
~ehicle care Technical data

Opening and closing
& WARNING
• Be careful when closing the window s. Check to see that no one
is in the way, or serious injury could result !
• Always read and heed WARNING~
& in "General des cript ion "
on
page 50. •
Locking and unlocking the vehicle from inside
T he vehicle can be l oc ke d or unlocked from the insid e
usin g th e pow er lock in g switches lo ca te d in t he driver's
a nd the f ront pas senger d oor.
t----~~~....,.~--,.,:,,....,...,..,.~..,...,. ..... ...,..,.._,......,...,......., ij
i
Fig . 4 3 Driv er's door:
po wer lo cking sw it c h
How to lock all doors and the rear lid
simultaneously
Press l ower part o f the po wer loc kin g s witch
IJt,,=
=> fig . 43 => & .
How to unlock all doors and the rear lid
simultaneously
- Press the uppe r part o f the switch
How to unlock each door separately using the
door handle
- Pull the handle to o pen th e do or.
If you loc k the vehicle us ing the power lo cking switch c»= , please
no te the foll owi ng:
• You cannot open the doors or the rear lid from the
outside
!increased security, for example when you are stopped at a red
li g ht).
• The diode i n the powe r loc king switch ill uminate whe n all the
doors and the rear lid are c losed and loc ke d .
• You ca n unl ock and o pe n t he d oors from the in side by pull ing o n
t h e door ha ndle.
• I f th e driver's door is opened (a fter you have locke d the ve hicle
from the inside using the power locking switch), the door will
rema in unlocke d to prevent you from locki ng y ourse lf out o f yo ur
veh ic le. Aft er you c lose t he door, you have to lock the d river 's doo r
agai n.
• I f you have an accident and the airbag is activated, the doors
u nl ock au tomaticall y.
& WARNING
• If you use the power locking switch with the doors closed ,
remember that all the vehicle doors will lock .
• Locking doors from the inside can help prevent inadvertent
door opening during an accident and can also prevent unwanted
entry from the out side . Locked doors can, however , delay a ssis­
tance to vehicle occupant s and hold up rescue efforts from the
outside in an accident or other emergency.
[ i ] Tips
Be awa re t hat t he rear lid can be op ened from insi de th e vehic le with
the remote rear lid release located in the driver's door. Before you _,.

Clear vision
inst rument panel ill umination will automaticall y become dimmer
a s the daylight fades away and eventually will go out completely
when out side l ight i s very low . Thi s is to remind you , the dri ver , to
s witch on the headlights befor e it g ets too dark.
• Canada model s: instrument panel illumination will stay bright
re gardles s of the intensity of ambient light . Alway s be aware of
c hange s in outside light cond itions while you are d riv ing . Resp ond
in time to f ading dayl ight by turning the ligh t switch to po sit ion
io
(or "AUTO" if your car is equipped with this feature) to turn on your
he adl ights . •
Ap plie s to vehic le s: wi th x eno n hea dlig ht s
Xenon headlights
After s tarting the engine, the xenon headligh ts are automatically
adjusted to the load and angle of the vehicle (for example, during
acce leration and brak ing) . This prevents oncoming tra ffic from
experienc ing unnecessa ry glare from your head lights .
If the system is not operating properly, a warning sy mbol in the
Auto -Check Contro l is displayed:::::,
page 34. •
Emergency flasher &.
The emergency flasher makes other mot orists aw are that
y o u or your vehicle are in an emergency situation.
1Jia---------------...,i ij ::c .,
"'
-
Fig. 9 3 Ce nter
cons ole: e mergen cy
fla sher swit ch
Press the sw itch ~~fig . 93, to sw itch the emergency
fl ash er o n or o ff.
When the emergency flasher is on, al l four turn signa l blink at the
same time . The turn signal indicator lights¢¢ in the instrument
cluster, as we ll as the light in the emergency flasher sw itch
t!:;,,. b link
likewise .
The emergency flasher will automatica lly switch on if you are in an
accident where the airbag has deployed .
[ i ] Tips
You should switch on the emergency flasher when :
• you are the last vehicle stand ing in a t raffic jam so that any other
veh ic les coming can see you , or when
• your vehic le has broken down or you are in an emergency situa ­
tion, or when
• your veh ic le is being towed by a tow truck or if you are towing
another vehicle behind you .•

Seats and storage
Seats and storage
General recommendations
Why is your seat adjustment so important?
The safety belts and the airbag system can only provide
ma ximum protection if the front
seats are correctly
a djusted.
There are var ious ways of adjusting the front seats to provide safe
and c omfortable support for the driver and the front passenger.
Adjust your seat properly so that:
• you can easily and quickly reach all the switches and controls in
the instrumen t pa nel
• your body is proper ly supported to reduce physical stress and
f atigue
• the safety belts and airbag system can offe r maximum protec ­
tion=>
page 768.
I n the fo llowing chapters, you wil l see exact ly how you can best
adjust your seats.
There are special regulations and instructions for instal ling a child
safety seat on the front passenger seat. A lways heed the informa ­
tion regarding child safety provided in=>
page 790, "Child Safety".
& WARNING
Inco rrect se ating po sition of the driver a nd all other pa ssengers
c an result in serious per sonal injury.
• Alway s keep your feet on the floo r when the vehi cle is in motion
- never put your feet on top of the in strument panel , out of the
window o r on top of the seat cushio n! This appl ies espe ciall y to
the pa ssenger s. If your seating position i s incorre ct you increase
the ri sk of inju ry in the c ase of sudden br aking or an accident .
If
& WARNIN G (continued )
the airb ag inflate s and the seating position is incorre ct thi s could
r e sult in per sonal injury or even death.
• It is important for both the driver and front p assenger to keep
a distan ce of at least 10 inche s (25 cm) betw een them se lve s and
the steering wheel and /or in strument p anel . If you are sitting any
closer than this , the airbag system cannot protect you properly . In
a ddition to this , the front se ats and head re str aints mu st be
adjusted to your body height so th at they can give you maximum
protection .
• Alway s try to keep as much distan ce as possible between your­
s elf and the steerin g wheel or in strument p anel.
• Do not adjust the driver's or front pas senger seat while the
vehicle is mov ing . You r seat may mo ve unexpect edly , ca usin g
s udden los s of vehicle control and per sonal injury.
If you adjust
your seat while the vehi cle i s moving , you a re out of position .
0 Note
When the front seats are in the reclined position, make certain that
the seatbacks are not pushed against the built -in air deflector *
when you run the sea ts back toward the rear of the vehicle and
when you lower the seatback. This can damage the air deflector and
the latching mecha nis m. •
Driver seat
The correct seat position is importan t for safe and relaxed
drivin g.
We recomme nd tha t yo u adjust the dr iv e r's sea t in the
fol lowing ma nne r:

- Adjust the seat in fore and aft direction so that you can
easily push the pedals to the floor while keeping your
knee slightly bent==>
& in "Why is your seat adjustment
so important?".
- Adjust the seatback so that when you sit with your back against the seatback, you can still grasp the top of the
steering wheel.
- Position the head restraints according to the occupant's
height. For maximum protection, the upper edge of the
head restraints should be at least at eye level, or higher
==>
page 757,fig.156.
& WARNING
Never place any objects in the driver's footwell. An object could
get into the pedal area and interfere with pedal function. In case
of sudden braking or an accident, you would not be able to brake
or accelerate! •
Front passenger seat
Always move the front passenger seat into the rearmost
position.
To avoid contact with the airbag while it is deploying, do not
sit any closer to the instrument panel than necessary and
always wear the three-point safety belt provided adjusted
correctly. We recommend that you adjust the passenger's
seat in the following manner:
- Move the front passenger seat into the rearmost position
of the fore and aft adjustment range ==>
& in "W hy is
your seat adjustment so important?" on
page 92.
Controls and eq uip­
ment
Seats and storage
- Bring the backrest up to an (almost) upright position . Do
not ride with the seat reclined.
- The ideal position for the head restra int is with the upper
edge of the restraint level with the top of your head
==>
page 95 and ==> page 98. You should not lower the top
of the rest ra int below the level of your eyes.
- Place your feet on the floor in front of the passenger's
seat. •
Manual seats
Applies to veh ic les: with manua lly adjustab le seats
Adjustment controls
Various controls on the manual seats provide a wide
range for individual adjustments.
0 Moving the seat forward or backward
0 Extending the seat cushion
© Adjusting the seat cushion angle
© Adjusting the seat height
© Adjusting the lumbar support*~ page 98
Fig. 104 Adjustment
controls: locations on
driver seat
© Adjusting the seatback angle .,
~ehicle care irechnical data

Seats and storage
[ i] Tips
Some of the controls are fitted on certain model s only or they are
opt ional equipment. •
Applies to vehic les: w ith man ually adjustab le sea ts
Adjusting the manual seats
Position, angle and shape of the manual seats can be
adjusted to provide safe and comfortable seating.
Reed and heed all WARNINGS ~ & before you adjust your
seat.
Moving the seat forward or backward
Lift lever G) ~ page 93, fig. 104 and slide the seat to the
desired position.
- Release the lever
(D and then move the seat further until
you feel and hear it engage .
Extending/shortening the seat cushion*
-Grab the handle just below the front edge of the seat®
~ page 93 , fig. 104.
- Slide the seat cushion extens ion backward or forward to
the desired position. Release the handle to lock the
extension in place.
Adjusting the seat cushion angle
- Pull the lever 0 ~ page 93, fig. 104 up and pump it to
raise the front of the seat cushion.
- Push the lever
0 down and pump it to lower the front of
the seat cushion. -
In either case, shift your weight in the direction you want
the seat to tilt to support the adjustment action.
Adjusting the seat height
- Pull the lever © up and pump it to raise the seat .
- Push the lever © down and pump it to lower the seat.
Adjusting the lumbar support
-Press the corresponding depression on the switch shell
© to adjust the height and contour of the lumbar
support, see~ page 98.
Adjusting the seatback angle
- Lean forward to take your weight off the seatback.
- Turn the hand wheel © in the direction you want the
seatback to ti It.
& WARNING
• Never adjust the driver or front passenger seat while the
vehicle is moving. If you do this while the vehicle is moving, you
will be out of position. Always adjust the driver's or front
passenger seat when the vehicle is not moving.
• Be careful when adjusting the seat height. Check to see that no
one is in the way, or serious injury could result!
• To reduce the risk of injury in the case of sudden braking or
accident, front passengers must never ride in a moving vehicle
with the seatback reclined. Safety belts and the airbag system
only offer maximum protection when the seatback is upright and
the safety belts are properly positioned on the body. The more the
seatback is reclined, the greater the risk of personal injury from an
incorrect seating position and improperly positioned safety
belts! •