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Ch
e ck
ing and Filling
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 time to time.
Coolant los
s
Coolant loss may indicate a
leak
in the cooling
system. In the event of coolant loss, the cooling
syst em 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 eng ine 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 sp ill anti
-
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.
{Q)
Note
Do not add any type of radiator leak seala nt
to your vehicle's engine coolant
.
Adding radia-
to
r
repa
ir
fluid may adversely affec
t
the func-
tion and performance of
your
cooling system
and could result in damage not covered by
your New Vehicle Limited Warranty.
Adding coolant
Be very careful when adding engine coolant.
Before you check anyth ing in the eng ine compart-
ment,
always
read
and
heed all WARNINGS
198
¢
A
in Working in the engine compartment on
page 191.
Requireme nt: There must be a res idual amount
of coolant in the expans ion tank
~CD-
.,,.
Turn off the engine
.
.,,.
Let the engine cool down.
.,,.
Place a thick rag over the
coolant
expa nsion
tank
¢
page 197, fig. 163 and
carefull
y
turn
the cap counter -clockwise
¢
.&_.
.,,.
Add coolant mixed in the correct ratio
~
page 196, Coolant up to the MAX marking.
.,,.
Make sure that the fluid level remains stab le.
Add more coolant if necessary
.
.,,.
Twist the cap on aga in tightly.
Replacement engine coolant must conform to ex-
act specifications
¢
page 196,
Coolant
.
We recommend using only coolant additive
Gl
2
+
+, 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 addit ive and can
restore the correct rat io. This should be done as
soon as possible.
If you have lost a considerable amount of cool-
ant, 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. Excess
coolant will be forced out th rough 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 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-clo ckwise direction while app lying
light, downward pressure on the top
of
the cap.
~
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