2009 AUDI A4 CABRIOLET tire pressure

Instruments and controls
General illustration
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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 :
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@
-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
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115
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36,37
38
43
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212
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108
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172
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116
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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. •
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61
106
101
249
80
123
172
118

CRUISE
ti(')
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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
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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
=> & . ~

II
Light/rain* sensor defective
Worn brake pads
USA m odels :
Speed warning 1
Canad a m od els:
Speed warning 1
Dynamic headlight range con trol*
defective
Adaptive Light* defective
Windshield washer fluid level low
U SA mod els:
Speed warning 2
Canada mod els:
Speed warning 2
Battery voltage too high or too low
D efective light bu lb
Tire pressure monitoring system* Loss of air pressure
Tire pressure monitoring system*
System not available
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Ye llow symbols indicate a priority 2 malfunction -Warning!
When a yellow symbo l appears, a warning tone wi ll sound
once.
Check the displayed function as soon as possible. If more than one
priority 2 ma lfunction is detected, all symbols will appear one after
the other for about two seconds. •
Controls and equip­
ment
Driv er inf ormati on di spl ay
Fuel supply too low l
When the -,symbol illuminates, this means there is about 2 to 2.5
gallons (8 to 10 litres) of fue l left in the fuel tank . Time to refuel!
~ page 245. •
Engine oil level '7.:.
When the-=· symbol illuminates, check the engine oil level as soon
as possib le ~
page 254 . Add oil if necessary ~ page 255. •
Engine oil sensor defective • ..
If the .,_,ft symbol illuminates, contact your author ized Audi dea ler
and have the oil sensor inspected. Until you have this done, check
the oi l leve l each time you refuel just to be on the safe side
~ page 254. •
Applies to vehic les: with Lighting package
Light/rain* sensor defective >
- Automa tic headl ight s/autom atic wiper s def ective
If the symbol il luminates, the light/rain sensor has failed. For safety
reasons the low beams are turned on permanently with the switch
in
AUTO . However, you can continue to turn the lights on and off
using the light switch. In the case of a defect in the rain sensor, the
windsh ield wiper lever functions are still avai lable. Have the
light/rain sensor checked as soon as possible at a dealership. •
Worn brake pads J
r Brake p ad s!

Using the rocker switch, you can select the menus in the display or
change settings. A cursor appears on the left in front of the selected
values .
By pressing the [Reset] button, you activate the selection you made
or confir m the values you set.
Sel ecte d funct ions are identified with
a check mark or are carried out directly.
Meanings of the symbo ls in the display:
Selection bar Selected function
> Cursor
Check mark
D
Box
-
Meaning
Current Selection
Selected o r Function
active
Not selected
Triangle pointing up Previous page
Triangle pointing down
Next page
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Tire pressure monitoring system
App lies to vehicles: with tire pressu re mon itoring system
General notes C.. ~
Each tire, including the spare (if provided), should be checked
month ly when cold and inflated to the inflat ion pressure recom­
mended by the vehicle manufacturer on the vehicle placard or tire
inf lation pressure label. ( If your vehicle has tires of a different size
than the size indicated on the vehicle placard or tire inflation pres ­
sure label, you should determine the proper tire inflation pressure
for those tires.)
As an added safety feature, your vehicle has been equipped with a
tire pressure monitoring system (TPMS) that illuminates a low tire
Controls and equip ­
ment
•
Driv er inf ormati on di spl ay
pressure telltale when one or more of your tires is significant ly
under -inflated. Accord ingly, when the low tire pressure tel ltale illu ­
minates, you shou ld stop and check your tires as soon as possible,
and inflate them to the proper pressure . Driving on a significan tly
under-inflated tire causes the tire to overheat and can lead to tire
failure . Under-inflation also reduces fuel efficiency and tire tread
life, and may affect the vehic le's handling and stopping ability .
Please note that the TPMS is not a substitute for proper tire mainte­
nance, and it is the driver's responsibility to maintain correct t ire
pressure, even if under -inflation has not reached the leve l to trigger
il lumination of the TPMS low tire pressure te lltale .
Your veh ic le has a lso been equipped w ith a TPMS malfunction indi­
cator to indicate when the system is not operating properly . The
TPMS malfunction indicator is combined with the low tire p ressure
telltale . When the system detects a malfunction, the telltale wil l
flash for approx imately one minute and then remain cont inuously
il luminated . This sequence will continue upon subsequent vehicle
start -ups as long as the malfu nction exists.
When the ma lfunction indicator is illuminated , the system may not
be able to detect or signal low tire pressure as intended. TPMS
malfunctions may occur for a variety of reasons , including the
insta llation of replacement or alternate tires or wheels on the
vehicle that prevent the TPMS from functioning prope rly . A lways
check the TPMS malfunction telltale after replacing one or more
tires or whee ls on your vehicle to ensure that the replacement or
alternate tires and wheels allow the TPMS to continue to function
p roper ly .•
App lies to ve hic les : with tire pressu re mon ito ring system
Introduction
The tire pressure m onitoring system monit ors air pressure
in all four road wheels while t he vehicle is moving.
As soon as the tire pressure monitoring system senses a significant
loss of air pressure in one or seve ra l tires, text messages and yellow
~

Driver information display
symbols appear in the instrument cluster display to alert the driver.
The warning light in the instrument cluster comes on when the
tire is significantly underinflated .
The warning light _, also lights up during a system failure.
When the wheel is turning, the system receives radio signals from
sensors located inside each tire .
A factory spare wheel is delivered with sensor. However, the spare
wheel is not checked by the tire pressure monitoring system. Such monitoring can only occur after the spare wheel has been installed
and initialized ~
page 45.
Be aware that tire pressure is also dependent on the temperature of
the tire. For every 18 °F (10 °C) increase in tire temperature, tire pres­
sure increases by about 1.5 psi (0.1 bar). The tire warms up while the
vehicle is moving and tire pressure rises. So you should adjust tire
pressure only when they are
cold, when tire temperature is roughly
the same as ambient air temperature.
In order to keep the tire pressure monitoring system properly cali­
brated, tire pressure on all four tires should be checked at regular
intervals, adjusted if necessary and saved in the proper setting
(recommended pressure)~
page 43.
The tire pressure is shown on the tire pressure label. On USA vehi ­
cles, the tire pressure label is located on the driver's side B-pillar. On
Canada vehicles, the tire pressure label is located either on the
driver's side B-pillar or inside the fuel filler flap. The tire pressure
label lists the recommended cold tire inflation pressures for the
vehicle at its maximum capacity weight and the tires that were on
your vehicle at the time it was manufactured . For recommended tire
pressures for normal load conditions, please see chapter
~ page 277.
& WARNING
• When the tire pressure monitoring system warning light is lit,
one or more of your tires is significantly under -inflated. You should
stop and check your tires as soon as possible, and inflate them to
& WARNING (continued)
the proper pressure as indicated on the vehicle's tire pressure
label
~ page 271. Driving on a significantly under-inflated tire
causes the tire to overheat and can lead to tire failure. Under-infla­
tion also is likely to impair the vehicle's handling and stopping ability .
• Do not adjust tire pressure when tire temperature is excessive.
This could lead to serious tire damage and even cause the tire to
burst, with the additional danger of an accident.
For the sake of the environment
Driving with under-inflated tires reduces fuel efficiency and tire
tread life.
[ i] Tips
• Each tire should be checked monthly when cold and set to the
recommended inflation pressure as specified on the tire pressure
table~
page 277 .
• The tire pressure monitoring system helps the driver to keep
track of the tire pressures . But the driver still has the responsibility
for maintaining the correct tire pressure.
• Tire pressure must only be adjusted when the temperature of the
tires is about the same as ambient air temperature.
• When tires are replaced, the sensors and valves must not be
detached or exchanged. Only the valve core needs to be replaced
and, if necessary, the valve and the wheel electronics replaced.
• If you should put different wheels and tires on your vehicle (e.g.
winter wheels and tires), you must be certain that the wheels and
tires are compatible with the tire pressure monitoring system.
Otherwise the system will register a malfunction and a fault
message will be displayed. For more information, contact your Audi
dealer. .,