2009 AUDI S4 CABRIOLET change time

Defective light bulb warning The defective light bulb warning tells you when a vehicle
light bulb has become defective.
If a defective bulb has been detected by the system or a light bulb
burns out, the symbol with a message appears in the display to
tell you which bulb is burnt out and where it is located. For example:
R ear left tu rn signal
After 5 seconds, the message disappears . If you want to reca ll the
message into the display, press the CHECK button .
There are three reasons why the defective bulb message would appear in the display:
• the light bu lb has burnt out~
page 302.
• the fuse is "blown"~ page 300, "Replacing a fuse" .
• the wire connection to the light bulb is defective .
Have the bulb replaced or the connection repaired by your autho­
rized Audi Service department .
& WARNING
• Light bulb s are pre ssur ized and cou ld e xplode while they are
being changed causing se rio us pe rsona l injury .
• Work with du e care when h andling the high -voltage sect ion of
gas disc ha rg e !x enon ) la mp s* . F a il ing to do so cou ld r esult in death
o r seriou s inju ry! •
Contro ls and eq uip­
ment
Dri ver informa tio n di spl ay
Speed warning system
Overview
The spee d warning system helps you to keep your driving
speed below a set speed limit.
Fig. 19 D ispl ay : s pee d
wa rning sy st em
The speed warning system warns the driver if he exceeds a previ ­
ously stored maximum speed . A warning tone wi ll sound as soon as
the vehicle speed exceeds the set speed by about 3 miles per hour (3 km/hl. At the same time, a warning symbo l appears in the display
~fig.19.
The speed warning system has
two warning thre sh old s that func­
tion independently of each other and that have somewhat different
purposes :
Speed warning 1
You can use speed warning 1 to set the maximum speed while you
are driving . This setting will remain in effect un til you turn off the
ignition, assuming that you have not changed or reset the setting.
The speed warning symbol
C-~ (USA models)/ (Canada models) in
the warning 1 display appears when you exceed the maximum speed . It goes out when the speed falls below the stored maximum
speed. .,
~ehicle care Technical data

Saving a maximum sp eed
- Turn off the ignition .
Fig. 22 Wiper arm :
fu nc tio n se lec to r
switches
- Briefly press the CHECK button in the instrument cluster
=> page
36, fig. 21 . The odometer and the digital clock
will now be illuminated.
Press the CHECK button for at least two seconds. The
currently stored maximum speed
o r the crossed out
symbol for warning 2 wi ll appear in the display if a
maximum speed has not yet been set.
Press the function se lector switch in the wiper arm@
=> fig. 22 up or down to change the set value . The values
increase or decrease in increments of 6 .2 mph (10 km/h).
R ese tting th e m aximum sp eed
- Turn off the ignition .
- Briefly p ress the CHECK button in the instrument cluster
=> page 36, fig. 21. The odometer and the digital clock
will now illuminate briefly .
- Press the CHECK button for at least two seconds. The
cu rrently stored maximum speed will appear in the
disp lay.
Contro ls and eq uip­
ment
Dri ver informa tio n di spl ay
- Press the rese t button in the wiper arm@=> fig. 22 until
t h e d isplay shows the symbol for spe ed warning 2
crossed out w ith a line .
The odometer and the digital clock disp lays wi ll go out again a few
seconds after this adjustment is completed .•
Trip computer
Introduction
The trip computer gives you information on current and
average fuel mileage, average speed, fuel range and
driving time.
F ig . 23 Tr ip co mput er
d is pl ay : Ave ra ge f uel
mi leage
You can switch between the trip computer 1 and 2 by pressing the
Reset button
@ => page 38, fig. 24
You can tell which memory level is currently active by the number in
the display => fig. 23. The data from the single -trip memory
(memory level 1 l is being displayed if a
1 appears in the display. If a
2 is shown, then the data from the total -trip memory is being
displayed (memory leve l 2) . ..,_
~ehicle care Technical data

Driver inf orma tion d ispl ay
S in gle- trip m em ory (Tr ip co mputer 1)
The single -trip memory stores the trip informa tion from the time the
ignition is turned on until it is turned off. If the trip is continued
w ithin 2 hour s from the time the ignition was turned off, the new
data will be included in the calculation of the current trip informa­
tion. If the trip is interrupted for
mo re t han 2 ho ur s the memory is
reset automatically.
T ot al-tr ip m emor y (Trip comp uter 2)
Un like the s ingle-trip memory, the total -trip memory is not reset
automatically . This permits you to evaluate your driving data for the
entire period between manua l resets .
Fuel r an ge
The es timated cruising range in miles (km) appears in the display .
This tells you how far your vehicle wil l be able to trave l on the
current tank of fuel and with the same driving style. The display
changes in increments of 6 miles (10 km).
The cruising range is ca lculated based on the fuel consumption for
the last 18 miles (30 km). If you drive conservatively, the cruising
range will increase.
Ave rage f uel m ileage
The average fuel economy in MPG (1/100 km) s ince you last cleared
the memory appears in this display. You can use this disp lay to
adjust your driving technique to achieve a desired mileage.
Curren t fue l mile age
The instantaneous fuel consumption in mi les per ga llon (1/100 km)
is shown in this display. You can use this disp lay to adjust your
driving technique to achieve a desired mileage.
Fuel consumption is recalcu lated at intervals of 33 yards (30
meters). When the vehic le is stationary, the most recent fuel
consumption is displayed.
A ve ra ge speed
The average speed in mph (km/h) since the last time the display was
reset appears in the display.
Elapsed time
The length of time that you have been driving since you last reset
the memory appears in this display .
Distance
The elapsed distance since the last time the memory was cleared
appears in the disp lay. The maximum distance that can be recorded
is 9,999.9 m iles (9,999 .9 kilomete rs) .
[ i ] Tips
A ll stored values will be lost if the vehicle battery is disconnected .•
Operation
The trip computer is controlled by two switches on the
windshield wiper lever.
Fig. 24 W iper ar m:
W ipe r leve r: co ntrol s
for the tr ip co mpu ter ..

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. .,