2009 AUDI A4 CABRIOLET Owners Manual

Instrument cluster illumination
It is possible to adjust the instrument cluster illumination.
9:36
02 .11.200
Fig. 4 In strum ent
c lus ter illum inat io n
- Press the"+" button to increase the brightness.
Press the"-" button to dim the br ightness.
A light sensor in the instrument cluster controls the illumination for
the instrument cluster, the center conso le and the displays.
The illumination for the instrument cluster lights up whenever you switch on the ignition with the
ve hic le head lights off. As the
daylight fades, the instrument c luster illumination likewise dims
automatically and wi ll go out complete ly when the outside light is
very low . This feature is meant to remind you to switch on the head ­
lights when the outside light conditions become poor. •
Controls and eq uip­
ment
In st ru m ent s a nd w arning /indi cator li ght s
Speedometer with odometer
The speedometer shows you the vehicle speed, and the
odometer shows you how many miles (kilometers) you
have driven .
0 1mUc::1 Uni3
Fi g. 5 Odome ter
di sp la y in side s pee d­
o m eter
The odometer and trip odometer are located inside the speedom ­
eter.
• USA models - Miles
• Canada models - Ki lometers
Lo wer odomet er
The lower odometer shows the tota l number of miles (ki lometers)
driven.
Upp er odom ete r (t rip odo m ete r)
The upper odometer shows the total number of miles (kilometers)
driven since you last reset the odometer to zero. You can use this
odometer when you want to keep track of how many miles (kilome­
ters) you have driven for a single trip or errand. The last digit indi­ cates 1/10 of a mile (100 meters). You can set the trip odometer back
to zero by pressing the reset button
~ fig. 5. _,.
~ehicle care Technical data

Inst rum ents and warnin g/indi cato r li ghts
M alfu nction message
If there is a malfunction somewhere in the ins trument cluster, dE F
will appear in the trip odometer and will stay on. Contact your
authorized Audi dea ler to have the prob lem corrected.
Im mob ilizer
Each time you switch on the ignition, the data stored in the vehicle
key are e lectronically scanned to verify that key data and vehicle
data match. If a non -coded or a defective vehic le key is used, the
word
S A FE wi ll appear and remain lit in the upper (trip) odometer
display . If this happens, the vehicle cannot be started=>
page 49. •
Fuel gauge
The fuel gauge works only when the ignition is on .
When the needle reaches the red area, the warning light in the instrument cluster wil l illuminate =>
page 33 [). This means you
have approx imately 2.4 gallons (9 liters) of fuel left in the tank.
Time
t o refu el!
The total tank capacity of your vehicle is listed in=> page 314.
0 Note
Never run the tank completely dry! An irregular supply of fuel can
cause engine misfiring and fuel could enter into the exhaust
system. The catalytic converter could then overheat and be
damaged. •
[ CHE CK] button
You can perform different functions with this button.
I S2YY
0
Fig. 6 C HECK butto n in
th e ins tru men t c lu ste r
The [ CHECK] button performs the following functions:
S wi tch ing on t he cl ock and odome ter
With the ignition is switched off, the odometer and digital clock with
date disp lay can be switched on for a few seconds by pressing the
[CHECK] button=> fig. 6.
Sta rtin g t he A uto-Che ck se qu ence
The Auto-Check system=> page 28 consistently monitors certain
individual functions and componen ts of the vehicle when the igni­
tion is turned on and when the vehicle is moving.
With the ignition switched on, you can start the" Auto-Check
sequence" by pressing the [
CHECK I button. You can perform an
Auto -Check sequence both when the vehic le is at a standstill and
the ignition is switched on or when the veh ic le is mov ing not faster
than 3 mph (5 km/h).
Ca lling up th e dri ver inform ation
When a first priority symbol starts to flash=> page 28 or when a
defective light bulb=>
page 35, has been detected, you can press
the
! CHECK] button to display the driver information. For example:
S witch off engine and chec k oi l le vel

The information disappears after approximately 5 seconds.
Setting the speed warning
By pressing the [ CHECK I button you can set speed warning 1
=> page 36 while the vehicle i s moving .
Speed warning 2* => page 36 can only be set with the ignition
switched off. •
Service interval display
The service interval display reminds you when your next
service is due.
Display remaining distan ce
Fig. 7 Serv ice interval
display in the in stru ­
men t cluster
With the ignition on, briefly push button G) to display the distance
remaining (miles/kilometers) until the next service is due . You can
recall the service countdown with the engine in id le or while driving
at a slow speed up to
3 mph (5 km/h). The remaining distance will
be updated every
300 miles (500 km) :
On a new vehicle, or immediately after a service has been
performed, the following message will be displayed:
Service in ···· mi (km) ··· days
For the the first 300 miles (500 km) of driving after a service , the
display will keep showing dashes. This is
NOT a malfunction. Rather,
Contro ls and eq uip­
ment
Instruments and warning /indicator lights
the system needs the mileage to (re-Jodjust to your driving style . Only
then can it start generating and updating figures for the distance and
days until the next scheduled service.
Service reminder
As soon as less than 1,200 miles (2,000 kilometers) of driving are left
before the next due service, the following message will be displayed
when you switch on the ignition :
Service in 1,200 mi (2,000 km)··· days
After about five seconds the display switches back. Each time you
switch on the ignition, the distance will be updated until the next
service date is reached.
Service due
If service is due immediately, Service! will appear in the display
immediately after switching on the ignition . The display switches
back after about five seconds.
Resetting the display
Your authorized Audi dealer will reset the display after performing
the scheduled service. If the service is not performed by an autho ­
rized Audi dealer, the display must then be reset as follows:
• Switch off the ignition.
• Press and ho ld the Service button
G)=> fig. 7, then switch on the
ignition . One of the fol lowing messages appears in the display:
Service in ···· miles or Service!.
• Press the reset button @ until either of the the following
messages appears in the display:
Service in ····miles··· days or
Service!
After about five seconds the display switches back.
[ i ] Tips
• Do not reset the display between service intervals. Doing so will
resu lt in an incorrect display.
~
~ehicle care irechnical data

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

CRUISE
ti(')
~
i::::3
D
BRAKE

Q
Controls and equip­
ment
Tire pressure monitoring system*
USA models:
Cruise control activated
Canada models:
Cruise control activated
USA models:
Anti-lock brake system (ABS)
Canada models:
Anti -lock brake system (ABS)
Safety belt Power top operation
Left turn signal
Electronic stabilization program
(ESP)
Generator
High beam
Electronic power control
USA models:
Brake system, parking brake set
Canada models: Brake system, parking brake set
Right turn signal
~ page 20
~ page20
~ page20
~ page20
~ page20
~ page 21
~ page21
~ page 27
~ page22
~ page22
~ page22
~ page22
~ page23
~ page23
~ page21
Instruments and warning/indicator lights
& WARNING
• Failure to heed warning lights and other important vehicle
information may result in serious personal injury or vehicle
damage .
• Whenever stalled or stopped for repair, move the vehicle a safe
distance off the road, stop the engine, and turn on the emergency
flasher
~ page 82.
• The engine compartment of any motor vehicle is a potentially
hazardous area. Before you check anything in the engine compart­
ment, stop the engine and let it cool down . Always exercise
extreme caution when working under the engine hood
~ page 242, "Engine compartment" .
[ i] Tips
Many functions are monitored by the Auto-Check system
~ page 28. Malfunctions or faults will be identified either with a red
symbol (priority 1 -Danger!) or with a yellow symbol (priority 2 -
Warning) .•
Malfunction Indicator Lamp (MIL)
L.i (USA models)/ (Canada models)
The Malfunction Indicator Lamp (MIU is part of the On-Board Diag­
nos tic (OBD Ill system. The symbol,.. lights up when the ignition is
turned on and will turn off after the engine has started and has
settled at constant idle speed . This indicates that the MIL is wo rking
properly.
The warning light illuminates when there is a malfunction in the
engine electronic syst em . Contact your authori zed Audi d ealer and
have the malfunction corrected.
For more information
~ page 27 . •

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
=> & . ~

If an unspecific defect in the brake system is indicated, the entire
b rake system is likely to be a ffec ted a nd y ou mus t ex pec t degra ded
brake response and performance .
Since any malfunction of the ABS also effects the ESP, that system's
w arning symbol
=> page 22 w ill light up alo ng w ith t he ->-1 t
(Canada models) warning light.
Malfun ction in the electronic diff erential lock
(EDL)
The two systems E DL and ABS inte ract. For this reason the ,t.
warning light/ 3 (Canada mode ls) wi ll come on to indicate a
malfunction in the EDL system~
page 213. See your authorized
Aud i deale r as soo n as poss ib le.
& WARNING
• If the ,.r;_/ :· (Canada models) warning light does not go out ,
or if it comes on while driving, the ABS system is not working
properly . The vehicle can then be stopped only with the brakes
operating without ABS support . You will not have the protection
ABS provides. Contact your Audi dealer as soon as pos sible.
• USA models : If both the BRAKE warning light and the "
warning light come on at the same time , the rear wheels could
lock up first under hard braking. Rear wheel brake lock-up can
cau se loss of vehicle control and an a ccident. Have your vehicle
repaired immediately by your author ized Aud i dealer or a qualified
work shop. Drive slowly and avoid sudden , hard brake application.
• Canada models : If both the brake warn ing light ((j)) and the ABS
warning light come on at the same time , the rear wheels could
loc k up first under hard braking . Rea r wheel brake lock-up can
cause loss of vehicle control and an accident. Have your vehicle
repaired immediately by your authorized Audi dealer or a qualified
workshop. Drive slowly and avoid sudden, hard brake
application . •
Controls and equip ­
ment
Instrum ents and warning /indi cator lights
Power top.--·
Th e w arning/i ndicator lig ht m oni tors the power top fu n c­
tion .
The warning/indicator light illuminates when you switch on the
i gni tion f or about 2 seconds as a c heck a nd the n goes out . T he
warning/indicator light has the follow ing functions:
• The ligh t illu mina tes whe n the power top opens or c loses.
• T he light also illuminates if one of the requirements for powe r
t o p o per ation is not m et when the swi tc h i s ope rate d. In th is case
the instrument c luster display also shows a corresponding message
=> pag e 64, "M essage s in th e ins trum ent clus ter d isplay" .
• T he light illuminates when the power top is opened or c losed
inco mple tely. •
Saf ety belts i
Th is warn ing/i ndic ator l ight re minds you to p ut o n you r
s af ety b elt.
The ~ wa rning/ ind icator lig ht illum inates when the i gni tion is
switched on to remind the driver and (on USA models on ly) any front
p ass enge r to put on t he sa fety belt. A ddi tionally, a n acous tic
warning (gong ) will also sound .
F o r m ore Infor mati on =>
page 159, "Safe ty belt wa rning l ig ht ,(,.". •
Turn signals ¢ ¢
The indic ator l ight flas hes whe n you use either turn
si gnal.
When eve r y ou u se th e left ¢i o r the right 9 tu rn signa l, the indicato r
light flashes. When you use the emergency flasher, both ind icator
l ig ht s flas h. ...

Inst rum ents and warnin g/indi cato r li ghts
If one of the turn signal light bulbs burn out, the turn signal will
flash twice as fast as normal. •
Electronic Stabilization Program (ESP)
The warning/indicator light monitors the electronic stabi­
lization program.
The warning/indicator light has the following functions :
• it flashes while you are driving , when the ESP is working .
• it illuminates when you switch on the ignition for approximately
2 seconds as a function check .
• it illuminates when there is a ma lfunction in the ESP.
• it illuminates after the battery has been disconnected.
• it illuminates continuous ly when the ESP is switched off.
• it illuminates if there is a malfunction in the ABS, since the ESP
is part of the ABS system.
If the ESP warning/indicator light i lluminates and stays on after you
have started the engine , this may mean that the control system has
temporari ly switched off the ESP. If this is case, you can reactivate
the ESP by switching the ignition o ff and then on again. The
warning/indicator light should go out to show that the system is
fully functional again.
If the battery terminals were disconnected and re-connected, the
vehic le was jump started or the battery is very weak, the ESP sensor
system goes through a learning process for the first few yards.
During this time, the indicator light illuminates. It goes out as soon
as the learning process is comp lete .
For more information about the ESP~
page 22. •
Generator 0
T his warning/indicator light detects a malfunction in the
generator or in the vehicle's electrical system .
The D warning/indicator light illuminates when you switch on the
ign itio n and must go out after the engine has started.
If the
D warning/indicator light illuminates while you are driving,
you shou ld contact your authorized Audi dealer . Since the vehicle
battery is discharging, you should switch off any unnecessary elec ­
trical consumers (for example, the air conditioner) .
0 Note
If the -t warning/indicator light (ma lfunction in the engine coo ling
system) in the instrument cluster shou ld illuminate~
page 31, stop
the vehicle and turn off the engine. The coo lant pump is not working
- this can cause engine damage! •
High beam ~D
The@:Dwarning/indicator light illuminates when the high beams are
on or when you use the headlight flasher. For more information
about using the high beams, see~
page 83. •
Electronic power control p
This warning/indi cator light monitors the electronic
power control.
The warning/indicator light (Electronic Power Control) il lumi-
nates when you switch on the ignition as a function check .