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Che
ck
ing and Fill in
g
blink until you add coolant and the level has been
restored to normal. Even though there is an elec-
tr ic coolant level sensor, we still recommend you
check the coolant level from t ime to time.
Coolant
loss
Coolant loss may indicate a
le ak
in t he cooling
system. In the event of coolant loss, the cooling
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 only if the
boiling point of the coolant is exceeded as a re-
sult of overheating.
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
.
-
Turn off the engine and allow it to
cool
down.
-
Protect your face, hands and arms from es-
caping 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 ant i-
freeze or coolant on the exhaust system or
hot eng ine parts
.
Under certain conditions,
the ethy lene glycol in engine coolant can
catch fire.
{il)
Note
Do not add any type of rad iator leak sealant
to your vehicle's engine coolant
.
Adding radia-
to
r
repair fluid may adverse ly affect the func-
tion and performance of your cooling system
and could resu lt in damage not covered by
your New Vehicle Limited Warranty.
Adding coolant
Be very careful when adding engine coolant
.
Before you check anything in the engine compart-
ment,
alw
ays
read an
d
heed all
WARNINGS
202
¢
A
in Working in the engine compartment on
page 195.
Requirement: There must be a res idual amo unt
of coolant in the expans ion tank
~CD-
.,,.
Turn off the engine .
.,,.
Let the engine cool down.
.,,.
Place a thick rag
over
the coolant expansion
tank
¢
page 201, fig. 175 and
carefull
y
turn
the cap counter-clockwise
~
.&_
.
.,,.
Add coolant mixed in the correct ratio
~
page 200, Coolant up to the MAX marking
.
.,,.
Make sure that the fluid level remains stab le.
Add more coolant if necessa
ry.
.,,.
Twist the cap on aga in tightly
.
Replacement engine coolant must conform to ex-
act specifications
¢
page 200,
Coolant
.
We recommend using only coolant additive
Gl2
+
+, Gl3
or in an emergency
Gl2+.
Do
not
use a
different additive. In an emergency use plain wa-
ter unt il you can get the correct additive and can
restore the correct ratio. This should be done as
soon as possible
.
If you have lost a considerab le amount of cool-
ant,
t
hen you should add cold antifree ze and cold
water only when the engine is cold.
Always use new engine coolant when refilling.
Do not
fill
coolant above the "MAX
"
mark. Excess
coolant will be forced out through the pressure
relief valve in the cap when the engine 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.
-
Turn off the eng ine 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 app lying
light, downward pressu re on the top
of
the cap.
..,,.
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