2014 AUDI R8 SPYDER cooling

CD Note
-The oil leve l mus t not be ab ove range
¢ page 179 , fig. 141 G) -danger of con­
verter or engine damage! Contact an au­
thorized Audi dealer to draw off oil, if necessary .
- Audi does not recommend the use of oil
additives. They may damage the engine
and adversely affect your New Vehicle
Warranty .
@ For the sake of the environment
-Under no circumstances can the o il come
i n contact with the sewage network or
the soil.
- Observe and follow lega l regu lations
when d isposing of empty oil containers.
Engine cooling system
Coolant
The engine coolant performs two functions: it
keeps the engine from overheating and it pro­ tects the engine from freezing in the winter.
The cooling system is sea led and generally re­
q ui res lit tle at ten tion.
The cooling system has been filled at the fac­
tory with a pe rma nent coolant which does not
need to be changed. The coolant consists of a
mix ture o f wa ter and the m anu fa ctu rer 's g ly ­
col -based coolant addit ive Gl3 antifreeze
with anticorrosion additives (50% for USA mod els; 60% for Canadian models) . This mix ­
ture both assures the necessary frost protec ­
tion and protects metal components i n the
engine's cooling system from corrosion and
scaling .
It also raises the bo iling po int of the
coolant.
Do not reduce the concentration of the coo l­
ant in the summer by adding plain water.
The
proportion of coolant addit ive must b e at
lea st 50% but not more than 60 %
to main­
tain antifree ze protection and cooling efficie n­
cy.
If t he cool ant frost pro tect io n is too low,
the coo lant cou ld freeze and damage the veh i­
cle heating and engine cooling system.
Checkin g and fillin g 181
For year -round driving, antifreeze is added at
the factory for temperatures down to:
- -31°F(-35°C)USA
- -40 °F ( -40 °C) Canada.
.8, WARNING
Before you check anythi ng i n the engi ne
com partmen t, a lways re ad and heed al l
WA RNIN GS
q .&. in Working in the engine
compartment on page 173 .
-
CD Note
- Before wi nte r sets in, have the coo lant
checke d to see if the cool ant a ddi tive in
yo ur vehicle is sufficient to meet the cli ­
mate conditions . This is especia lly impor ­
tant if you live in a region where the win­
ter is extreme ly cold. I f necessary, in­
crease the proportion of coo lant add itive
to 60% .
- When adding coolant additive to your cooling system, remember :
- We re commend using o nly coola nt ad­
di tive G l2++ or Gl3 (check the l abe l)
for your vehi cle. This coolan t additive is
ava ila ble at autho rize d Aud i dea le rs .
Othe r ty pes of antifreeze can sig nifi­
cantly reduce corros ion protection. The
resu lting corrosion can cause a loss of
coolant and serio us engine damage.
- Do not add any type of rad iator leak seal ­
ant to yo ur vehicle 's engine coolant.
Add ing radiator repair flu id may adverse­
ly affect the f unction and performance of
your cooling system and co uld resu lt in
damage not covered by you r New Vehicl e
Li mited War ran ty.
•
•

182 Checking and filling
Checking the engine coolant level
Proceed carefully when checking the coolant.
Fig. 144 Convertible top: se rvice position
Fig. 145 Convert ible top sto rage bay: coo lant expan­
sion tank
Before you check anything in the engine com­
partment,
always read and heed all WARN­
INGS c:::> &_ in Working in the engine compart­
ment on page 173
and park your vehicle on a
level surface.
The coolant expansion tank is located in the
right side of the convertible top storage bay
under the round metal cover
c:::> fig. 145. The
convertible top must be in the service position
to check the coolant leve l
c:::> fig. 144.
Bringing the closed convertible top into
the service position
.. Switch the ignition on .
.. Pull and hold the convertible top switch .
.. Press and hold the rear window switch too
until the convertib le top moves into the
service position
c:::> fig. 144.
Bringing the open convertible to into the
service position
.. Switch the ignition on.
.. Press and hold the convertible top switch. ..
Press and hold the rear window switch too
until the convertible top moves into the
service position
c:::> fig. 144.
Opening the coolant expansion tank cover
.. Stop the engine and allow it to cool.
.. Switch the ignition off .
.. Care fully remove the bolts in the cover@
using a screwdriver and remove the cover.
The coolant reservoir is located below
¢fig. 145.
Checking the engine coolant level
.. Place a rag or cloth on the cap of the coolant
expansion tank and turn the cap
carefully to
the left (counter-clockwise)
c:::> .&, .
.. Read the coolant leve l inside the coolant ex­
pansion tank¢
fig. 145. With a cold engine,
it must be above the "min" mark. With a hot
eng ine, it can be a little above the indicated
range.
To obtain an accurate reading, the engine must be switched off.
The expansion tank in your vehicle is equipped
with an electric coo lant level sensor
c:::> page 15. We still recommend you check the
coolant level from time to time .
Coolant loss
Coolant loss may indicate a leak in the cooling
system. In the event of coolant loss, the cool­
ing system should be inspected immediately
by your authorized Audi dealer. It is not
enough merely to add coolant.
In a
sealed system, losses can occur on ly if
the boiling point of the coo lant is exceeded as
a result of overheating .
A WARNING
-- The cooling system is under pressure. Do
notopenthecapofthecoolantexpan­
sion tank when the engine is hot. You
ris k be ing sca lded.
- The coolant additive, and therefore the
coo lant itself, is haza rdous to hea lth .
Keep the coolant additive in the original

container out of the reach of children. It
is a poison hazard.
@ Note
Do not add any type of radiator leak seal­
ant to your vehicle's engine coolant. Add­
ing radiator repair fluid may adversely af­
fect the function and performance of your
cooling system and could result in damage
not covered by your New Vehicle Lim ited
Warranty.
Adding coolant
Before you check anything in the engine com­
partment,
always read and heed all WARN­
INGS q A in Working in the engine compart­
ment on pag e 173.
"'Add coolant .
"'Twist the cap on again
tightly.
"'Tighten the cap (D q page 182, fig. 145
again.
Replacement engine coolant must conform to
exact specifications
q page 181, Coolant .
We recommend using only coolant additive
G12++, G13 or in an emergency G12 +. Do
not
use a different additive. In an emergency use
plain water until you can get the correct addi­
tive and can restore the correct ratio. This
should be done as soon as possible.
If you have lost a considerable amount of
coolant, then you should add cold antifreeze
and cold water only when the engine is cold.
Always use
new engine coolant when refilling .
Do not fill coolant above the "max" mark. Ex­
cess coolant will be forced out through the
pressure relief valve in the cap when the en­
gine becomes hot.
A WARNING
- The cooling system is under pressure and
can get very hot. Reduce the risk of
scalding from hot coolant by following
these steps.
Checking and filling 183
- Turn off the engine and allow it to cool
down.
- Protect your face, hands and arms from
escaping fluid and steam by covering
the cap with a large, thick rag.
- Turn the cap slowly and very carefully
in a counter-clockwise direction while
applying light, downward pressure on
the top of the cap.
- To avoid being burned, do not spill an­
tifreeze or coolant on the exhaust sys­
tem or hot engine parts. Under certain
conditions, the ethylene glycol in en­
gine coolant can catch fire .
- Antifreeze is poisonous. Always store an ­
tifreeze in its original container and well
out of the reach of children.
- If you drain the coolant, it must be
caught and safely stored in a proper con­
tainer clearly marked "poison" .
Q) Note
- Coolant pollutes the environment and
could cause an engine fire . Ex cess cool­
ant will be forced out through the pres­
sure relief valve in the cap when the en­
gine becomes hot.
- If, in an emergency, only water can be
added, the correct ratio between water
and antifreeze
q page 181 must be re­
stored as soon as possible.
@ For the sake of the environment
Drained coolant should not be reused . Al­
ways dispose of used coolant while observ­
ing all environmental regulations.
Brake fluid
Have the brake fluid changed by an experi­
enced t echnician.
Brake fluid absorbs moisture from the air. If
the water content in the brake fluid is too
high, corrosion in the brake system may result
afte r a period of time. The boiling point of the
brake fluid will also decrease considerably and
decrease braking performance. .,.. •
•