2007 AUDI R8 heater

Seats and storage73
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Using cigarette lighter
– Open the ashtray cover to access the cigarette lighter
⇒page 72.
– Press in the cigarette lighter knob.
– Wait for the lighter to spring out.
– Pull out the cigarette lighter immediately.
– Use the glowing heater element of the cigarette lighter to
light your cigarette.
– Put the cigarette lighter back in its socket.
Operating electrical socket
– Open the cover to access the cigarette lighter.
– Take out the cigarette lighter.
– Insert the plug of the electrical appliance into the ciga-
rette lighter socket.The cigarette lighter employs a standard 12 Volt socket which can
also be used as a power source for electrical appliances. The appli-
ances connected to the socket must not exceed a power rating of
100 W.
WARNING
Take care when using the cigarette lighter. Carelessness or negli-
gence when using the cigarette lighter can cause burns.
Caution
Always use the correct type of plugs to avoid damaging the sockets.
Note
Using electrical appliances with the engine switched off will drain
the battery.Storage compartmentsGlove box
The lockable glove box is equipped with a light.Opening glove box
– Pull the catch on the lid in the direction indicated (arrow)
⇒fig. 68 and open the lid.
Closing glove box
– Close the lid and push it in until it engages.If the side lights or headlights are switched on, the light in the glove
box comes on when the glove box is opened. You will find a
compartment for (sun)glasses in the lid.
The glove box has a standard 12 Volt socket which can also be used
as a power source for electrical appliances. The appliances
Fig. 68 Glove box
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Heating and cooling79
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data When driving through a tunnel or in queues of traffic, to prevent
fumes entering the interior of the vehicle.
WARNING
For reasons of safety you should not leave the air recirculation
switched on for too long. This mode prevents fresh air from
entering the vehicle, so the windows can mist over if the air
cooling is switched off. Bad visibility can cause an accident.AC mode Activating the AC mode
– Press the button ⇒page 75, fig. 69.
Deactivating the AC mode
– Press the button again.In the AC mode, the air cooling system is switched on and the
heating and ventilation are regulated automatically.
Note
If the LED in the AC button should continue to light up when the AC
mode has been switched off (i.e. the air conditioner has been
switched off) this is due to a defect in one of the air conditioner
components. If a malfunction should occur, please contact a quali-
fied workshop.
Economical operation of the air conditioner
Economical operation of the air conditioner will help to
save fuel.When the air conditioner is operating in the cooling mode it
reduces engine power and increases fuel consumption. To
ensure that the cooling mode is activated only when really
necessary, please note the following points:
– Switch the AC mode off if you wish to save fuel.
– Switch the AC mode off if you decide to open the
windows while driving.
– If the vehicle has heated up after standing in the sun,
open the windows and doors for a short time to cool the
vehicle.
For the sake of the environmentBy saving fuel you also reduce the amount of pollutants emitted
from your vehicle.Rear window heating

The rear window heating helps to demist the rear window.– Press the
 button ⇒page 75, fig. 69 to switch the rear
window heating on or off.
The rear window heating only works when the engine is running. An
indicator lamp in the button lights up when the rear window heater
is switched on.
The rear window heating switches off automatically after about
10 minutes.
ACACAC
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Checking and topping up fluids159
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
•
No additives should be used with engine oil. Any damage caused
by the use of such additives would not be covered by the factory
warranty.For the sake of the environment
•
Never pour oil down drains or into the ground.
•
Always observe statutory requirements when disposing of
empty oil canisters.
Cooling systemCoolant
The purpose of the coolant is to carry heat away from the
engine. The correct amount of anti-freeze is important to
prevent the cooling system from freezing in winter.The cooling system is filled for life at the factory, so the coolant does
not need to be changed. The coolant consists of a mixture of water
and anti-freeze additive G12++. This is a glycol-based anti-freeze
with anti-corrosion additives.
Anti-freeze additive
The amount of anti-freeze additive required depends on the temper-
atures to be expected in the winter season. If the anti-freeze concen-
tration is too low the coolant can freeze, resulting in failure of the
cooling system and heater.
The cooling system is filled at the factory with the correct amount of
anti-freeze for the country concerned.
In most cases the mixture consists of 60% water and 40% additive.
This mixture gives the required anti-freeze protection at tempera-
tures down to – 25 °C and protects the alloy parts of the cooling
system against corrosion. It also prevents scaling and raises the
boiling point of the coolant.Countries with warm climate
The coolant concentration must not be reduced by adding plain
water, even in the summer or in warm climates. The concentration
of the anti-freeze additive must always be at least 40%.
Countries with cold climate
If greater anti-freeze protection is required in very cold climates, the
proportion of the anti-freeze additive G12++ can be increased. A
concentration of 60% offers protection down to about -40 °C. The
concentration of the anti-freeze additive must not be more than
60%, otherwise this would reduce the anti-freeze protection. In addi-
tion, the cooling effect will be adversely affected.
Vehicles for export to countries with a cold climate (such as Sweden,
Norway and Finland) are supplied with antifreeze protection down
to about -35 °C. The concentration of the antifreeze additive for
these countries should always be at least 50%.
Caution
•
It is advisable to have the cooling system checked before the
winter season to make sure that the anti-freeze concentration is
adequate for the conditions to be expected. This applies particularly
if you intend to take the car into a colder climate zone. If necessary,
have the anti-freeze concentration increased to 50 - 60% as required.
•
Use only antifreeze additive G12++, an additive meeting the
specification “TL-VW 774G”. Other additives may give considerably
inferior corrosion protection. The resulting corrosion in the cooling
system can lead to a loss of coolant, causing serious damage to the
engine.
•
The coolant additive G12++ must not be mixed with any other
additives.
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