2007 AUDI R8 engine coolant

Instruments and warning/indicator lamps 10Instruments and warning/indicator lampsInstrumentsInstrument cluster overview
The instrument cluster is the driver's information centre.Fig. 2 Instrument cluster
Engine oil temperature gauge . . . . . . . . . . . . . . . . . . . .
Rev counter incorporating digital clock and date . . . .
Warning and indicator lamps . . . . . . . . . . . . . . . . . . . .
Coolant temperature gauge . . . . . . . . . . . . . . . . . . . . . .
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Speedometer with mileage recorder . . . . . . . . . . . . . .
Voltmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjuster/test button . . . . . . . . . . . . . . . . . . . . . . . . . . . . Driver information system . . . . . . . . . . . . . . . . . . . . . . .
Reset button for trip recorder . . . . . . . . . . . . . . . . . . . .
The needles on the dials in the instrument cluster are illuminated
when the ignition is switched on. The main instrument lighting (for
the dials and needles) comes on when the vehicle's lights are
switched on.
Engine oil temperature gaugeThe engine oil temperature gauge ⇒fig. 2 only works when the igni-
tion is switched on. In order to avoid possible damage to the engine,
please read the following notes for the different temperature
ranges.
Engine cold
If the needle is still in the lower range of the dial, this indicates that
the engine oil has not yet reached operating temperature. Avoid
high engine speeds, full acceleration and heavy engine loads.
Normal temperature
In normal operation the needle will settle somewhere in the centre
of the dial once the engine has reached operating temperature. The
needle may also go further up when the engine is working hard at
high outside temperatures. This is no cause for concern provided
the warning lamp

in the display does not start flashing.
Warning lamp

If the symbol

in the display flashes, either the engine oil temper-
ature is too high, or the engine oil level is too low ⇒page 157.
If the needle is at the top end of the dial, this means the engine oil
temperature is too high. Stop the vehicle, switch off the engine and
wait for it to cool down. If the warning lamp starts flashing again
after just a short distance, contact a qualified workshop.
A1
10
A2
11, 12
A3
15
A4
12
A5
13
A6
13
A7
14
A8
12, 34
A9
20
A10
13
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Instruments and warning/indicator lamps 12Digital clock with date display
The vehicle is equipped with either a radio-controlled
clock or a normal quartz clock with date display.The time and date are set using the button ⇒fig. 4.
Setting the hour
– Pull the adjuster button (the hour display will flash). Then
turn the button to the left or right to alter the hour.
Setting the minutes
– Keep pulling the button briefly until the minutes display
flashes.
– Then turn the button to the left or right accordingly.
Setting time format (12 or 24 hour display)
– Keep pulling the button briefly until the time format
display flashes.
– Then turn the button to the left or right.Setting the date
– Keep pulling the button briefly until the day, month or
year flashes.
– Then turn the button to the left or right.
When the display stops flashing, this means the setting you are
performing is completed and the time and date have been success-
fully stored.
When the ignition is switched off, the display illumination can be
switched on for a few seconds by pressing the adjuster/test button
⇒page 10, fig. 2 .Coolant temperature gaugeThe coolant temperature gauge ⇒page 10, fig. 2 only works
when the ignition is switched on. In order to avoid possible damage
to the engine, please read the following notes for the different
temperature ranges.
Engine cold
If the needle is still on the left of the dial, this indicates that the
engine has not yet reached operating temperature. Avoid high
engine speeds, full acceleration and heavy engine loads.
Normal temperature
In normal operation the needle will settle somewhere in the centre
of the dial once the engine has reached operating temperature. The
needle may also go further over to the right when the engine is
working hard at high outside temperatures. This is no cause for
concern provided the warning lamp in the display
 does not start
flashing.
Fig. 4 Detail of the
instrument cluster:
Digital clock and date
display
A8
A4
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Instruments and warning/indicator lamps13
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data Warning lamp

If the symbol
 flashes in the display, this means that either the
coolant temperature is too high or the coolant level is too low
⇒page 35.
If the needle is over to the far right on the dial, this means the
coolant temperature is too high. Stop the vehicle, switch off the
engine and wait for it to cool down. If the warning lamp starts
flashing again after just a short distance, contact a qualified work-
shop.
WARNING
•
Before opening the engine lid and checking the coolant level,
please observe the warning information on ⇒page 155, “Working
on components in the engine compartment”.
•
Never open the engine lid if you can see or hear steam or
coolant escaping from the engine compartment; there is a risk of
being scalded. Wait until you can no longer see or hear escaping
steam or coolant.Caution
•
Additional lights and other accessories in front of the air inlet
reduce the cooling effect of the radiator. At high outside tempera-
tures and high engine loads, there is a risk of the engine over-
heating.
•
The front spoiler also ensures proper distribution of the cooling
air when the vehicle is moving. If the spoiler is damaged this can
reduce the cooling effect, which could cause the engine to overheat.
You should obtain professional assistance.
Fuel gaugeThe gauge only works when the ignition is switched on. When the
needle reaches the reserve zone, the symbol
 lights up in the instrument cluster display ⇒page 36. At this point there are still
about 10 litres of fuel left in the tank. This is your reminder to fill up
soon.
The tank capacity of your vehicle is given in the Technical data
section ⇒page 198.
Caution
Never run the tank completely dry. If there is an irregular fuel supply,
misfiring can occur. This allows unburnt fuel to enter the exhaust
system, which could cause overheating and damage the catalytic
converter.Speedometer with mileage recorder
This instrument indicates the speed of the vehicle and the
distance travelled.The mileage is normally stated in kilometres (km). On some models,
however, the mileage recorder will show miles.
Lower mileage recorder (odometer)
The lower counter records the vehicle's total mileage.
Fig. 5 Detail of the
instrument cluster:
Mileage recorder with
reset button
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Instruments and warning/indicator lamps 18If the warning lamp does not go out, or if it lights up, flashes or
flickers when the vehicle is moving, this indicates a malfunction in
the system. This is also the case if the warning lamp does not light
up when the ignition is switched on.
WARNING
If a malfunction should occur, have the system checked immedi-
ately by a qualified workshop. If this is neglected, there is a risk
that the airbag system and/or belt tensioners may not be acti-
vated in an accident.Alternator

The warning lamp signals a fault in the alternator or in
the vehicle's electrical system.The warning lamp
 lights up when the ignition is switched on. It
should go out when the engine starts running.
If the warning lamp  lights up when you are driving, you can
normally continue as far as the nearest qualified workshop.
However, you should avoid using electrical equipment that is not
absolutely necessary because this will drain the battery.
Caution
If the coolant warning lamp
 in the instrument display lights up
as well while driving ⇒page 35, stop the vehicle immediately and
switch off the engine. In this case the coolant pump is no longer
being driven, and there is a risk of engine damage.
Seat belt warning lamp

The warning lamp acts as a reminder to fasten the seat
belts.After switching on the ignition, the warning lamp
 will remain lit
until the driver has fastened his seat belt. When the vehicle has
gathered speed you will also hear a warning chime.
For further information on the seat belts ⇒page 109.
Brake system

The warning lamp flashes if the brake fluid level is too low
or if there is a fault in the ABS system.If the warning lamp
 flashes (and the handbrake is not applied),
stop the vehicle and obtain professional assistance ⇒.
If a failure should occur in the ABS, the ABS warning lamp
 will
light up together with the brake warning lamp
 ⇒.
Handbrake applied
The warning lamp
 also lights up when the handbrake is applied.
If you drive by mistake with the handbrake still applied, you will hear
a warning buzzer.
WARNING
•
If the brake warning lamp does not go out, or if it lights up
when driving, the brake fluid level in the reservoir is too low – this
may cause an increased accident risk. Stop the vehicle and do not
drive on. You should obtain professional assistance.
•
If the brake warning lamp lights up together with the ABS
warning lamp, this can mean that the control function of the ABS
is out of action. As a result the rear wheels can lock relatively
easily when braking. This could cause the tail of the vehicle to skid
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Driver information system33
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Clearing speed limit
– Switch off the ignition.
– Briefly press the adjuster/test button in the instrument
cluster ⇒page 32, fig. 29. The mileage recorder display
and the digital clock will light up.
– Press the adjuster/test button for at least 2 seconds. The
display will show the speed limit which is currently set.
– Now press and hold the button on the wind-
screen wiper lever ⇒page 32, fig. 30 until the
crossed-out warning symbol for speed limit 2 appears on
the display.The display lighting for the mileage recorder and digital clock goes
off again a few seconds after the button is released.
Note
This speed limit function can also be operated via the on-board
computer ⇒page 25, “Selecting options from the menu”.Notes and symbolsRed symbols
A red symbol warns of a serious malfunction.–Stop the vehicle.
– Switch off the engine.
– Check the function displayed. Obtain professional assist-
ance if necessary.
A red symbol is accompanied by three warning chimes. The symbol
will keep flashing until the fault is corrected. If several faults are
detected at the same time, the symbols are displayed one after the
other for about 2 seconds at a time.
Note
•
You can press the left adjuster button to display a message that
gives you more information.
•
On vehicles equipped with a navigation system the warning
symbol is displayed in the top section of the display while the route
guidance is active.
Yellow symbols
A yellow symbol indicates a malfunction or other item
requiring attention.
Reset
AB
BRAKE
Fault in the brake system
⇒page 35

COOLANT
Coolant level too low / coolant
temperature too high
⇒page 35
OIL
PRESS.
Engine oil pressure too low
⇒page 36

Tyre pressure monitoring sys-
tem*
⇒page 36

Fuel level low
⇒page 36

Check engine oil level
⇒page 37

Engine oil sensor defective
⇒page 37
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Driver information system35
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Fault in the brake system

The warning lamp flashes when the handbrake is applied,
or if the brake fluid level is too low or if there is a fault in
the ABS system.If the symbol

flashes in the display when the handbrake
is not applied, there is a fault in the brake system. One of the
following messages will appear in the display together with
the symbol:
Stop vehicle and check brake fluid level
Brake fault ! Drive carefully to nearest workshop
–Stop the vehicle.
– You should obtain professional assistance.
If the ABS fails, the ABS warning lamp
 will light up together with
the brake warning symbol
 ⇒.
Handbrake applied
The warning lamp
 also lights up when the handbrake is applied.
In addition to this, a warning buzzer will sound after driving for
3 seconds at a speed above 5 km/h.
WARNING
•
If the brake fluid level in the reservoir is too low, this could
result in an accident. Do not drive on. You should obtain profes-
sional assistance.
•
If the brake warning lamp lights up together with the ABS
warning lamp, this can mean that the control function of the ABS
is out of action. As a result the rear wheels can lock relatively
easily when braking. This could cause the tail of the vehicle to skid
sideways. Drive carefully to the nearest qualified workshop and
have the fault rectified.
Fault in the cooling system

Faults in the cooling system must be rectified immedi-
ately.If the
 symbol flashes in the display, this means that either
the coolant temperature is too high or the coolant level is
too low. The following message will appear in the display
together with the symbol:
Switch off engine, check coolant level
– Stop the vehicle.
– Switch off the engine.
– Check the coolant level ⇒page 160.
– Add more coolant if necessary ⇒page 160.
– Wait for the symbol to go out before driving on.
– Obtain professional assistance if necessary.
If the coolant level is correct, the overheating may be caused by a
malfunction of the radiator fan.
If the alternator warning lamp lights up as well ⇒page 18, it is
possible that the drive belt has broken.
WARNING
•
If your vehicle should break down for technical reasons, stop it
at a safe distance away from moving traffic, switch off the engine
and turn on the hazard warning lights ⇒page 56, “Hazard
warning lights ”.
•
Never open the engine lid if you can see or hear steam or
coolant escaping from the engine compartment; there is a risk of
being scalded. Wait until you can no longer see or hear escaping
steam or coolant.
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Heating and cooling75
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Heating and coolingAir conditionerControls
The air conditioner is designed to keep the passenger
compartment at the temperature you find most comfort-
able at all times of the year.Fig. 69 Air conditioner controlsRecommended settings:
– Turn the control ⇒fig. 69 to the right to switch the air
conditioner on.
– Set the temperature to 22 °C (72 °F).
– Press the button ⇒fig. 69.
This setting quickly provides a comfortable temperature inside the
vehicle. If necessary it can be changed to suit individual preferences
or particular circumstances.
The air conditioner provides heating and ventilation and also cools
and dehumidifies the air inside the vehicle.
The air conditioner is fully automatic, and will maintain the desired
temperature at a constant level. To achieve this, the temperature of
the air supplied to the interior, the blower speed (volume of air
delivery) and the air distribution are regulated automatically. The
system also allows for the effect of strong sunlight, so there is no
need for manual adjustment. For these reasons it is advisable to use
the automatic mode for the comfort of all the passengers in virtually
all conditions throughout the year ⇒page 78.
Please note:
The humidity of the air is automatically reduced when the system
cools the interior of the vehicle. This helps to prevent condensation
on the windows. The air conditioner (compressor) will be switched
off automatically at low outside temperatures (below zero) and will
no longer dehumidify the air inside the vehicle.
If the humidity and temperature outside the vehicle are high,
condensation can drip off the evaporator in the air cooling system
and form a pool underneath the vehicle. This is normal and does not
indicate a leak.
If the outside temperature is low, the blower normally only switches
to a higher speed once the coolant has warmed up sufficiently (this
does not apply to the defrost setting).
In order to achieve maximum engine power, the air conditioner
compressor is temporarily switched off when pulling away from a
standstill with full throttle.
A2
AUTO
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Heating and cooling 76The compressor also switches off if the coolant temperature is
excessively high, to ensure adequate engine cooling under extreme
loads.
The functions can be set by turning the rotary control and are
switched on and off by briefly pressing the buttons. The LEDs in the
buttons light up when the function is switched on.
Pollution filter
The pollution filter (a particle filter) serves as a barrier against impu-
rities in the outside air, including dust and pollen. The air is also
filtered when the air recirculation mode is activated.
For the air conditioner to work with maximum efficiency, the pollu-
tion filter element must be replaced at the intervals specified in the
Service Schedule.
If the vehicle is driven in areas with a high level of air pollution and
the filter is no longer fully effective, it may be necessary to change
the filter element more frequently.
WARNING
For safety reasons it is important that all the windows are kept
free of ice, snow and condensation. These can cause poor visibility
and lead to an accident. Please familiarise yourself with the oper-
ating controls for the air conditioner, including the demist/defrost
functions for the windows.
Caution
•
If you suspect that the air conditioner is damaged, switch it off
to prevent further damage and have the system checked by a quali-
fied workshop.
•
Repairs to the air conditioning system require specialist knowl-
edge and special tools. For this reason, please contact a qualified
workshop if the system is not working properly.Note
•
Keep the air intake slots in front of the windscreen clear of snow,
ice and leaves to ensure unimpaired heating and cooling, and to
prevent the windows misting over.
•
The air conditioner operates most effectively with the windows
closed. However, if the vehicle has heated up after standing in the
sun for some time, the air inside can be cooled more quickly by
opening the windows for a short time.
Te m p e r a t u r e s e l e c t i o n– Turn the rotary control ⇒page 75, fig. 69 to the
required temperature setting.Turn the rotary control to the left to reduce the temperature. Turn
the rotary control to the right to increase the temperature. There are
several intermediate positions, allowing you to adjust the tempera-
ture as required.
Buttons
Function
Page
Rotary control
Temperature selection
⇒page 76
Rotary control
Switches air conditioner
on/off
Blower
⇒page 77
Rotary control
Air distribution
⇒page 77
Defrosting windows
⇒page 78
Heated rear window
⇒page 79
Seat heating* (driver's
side/front passenger's
side)
⇒page 80
Air recirculation mode
⇒page 78
Switching the air condi-
tioner on
⇒page 79
A1A2

A3
-  +AC
A1
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