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• Park your vehicle on a level surface.
• Switch
off
the ignition.
• Read the engine coolant level from the coolant
expansion tank ¢ fig. 189, ¢ page 218,
fig. 186. With a cold engine, the coolant level
should be between the "min" and "max" mark-
ings . When the engine is warm, the level may
be slight ly above the "max" marking.
The location of the coolant expans ion tank can be
seen in the engine compartment illustrat ion
¢pag e 218.
To obtain an accurate reading, the engine must
be switched
off.
The expansion tank in your vehicle is equipped
with an electric coolant level sensor.
When the coolant level is too low, the warning
light in the Auto-Check System
c:>
page 15 will il-
luminate until you add coolant and the level has
been restored to normal. Even though there is an
electric coolant level sensor, we still recommend
you check the coolant level from t ime to t ime.
Coolant loss
Coolant loss may indicate a leak in the 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 overheat ing.
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 pressu re on the top of the
cap.
Checking
and Filling
- To avoid being burned, do not spill anti-
freeze or coolant on the exhaust system or
hot engine parts. Under certa in cond itions,
the ethylene glycol in engine coolant can
catch fire.
(D
Note
Do not add any type of radiator leak sealant
to your vehicle's engine coolant. Adding radia-
tor repair fluid may adversely affect 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 anything in the engine compart-
ment,
always read and heed all WARNINGS
¢ .&. in Working in the engine compartment on
page 216.
• Requirement: There must be a residual amount
of coolant in the expansion tank
c:> (D .
• Turnoff the engine .
• Let the eng ine cool down .
• Place a thick rag over the coolant expans ion
tank c:>p a ge 222 , fig. 189 and
carefully
twist
the cap counter-clockwise
c:>
_&.
• Add coolant mixed in the correct ratio
c:>
page 222, Coolant up to the MAX marking .
• Make sure that the fluid level remains stab le.
Add more coolant if necessary.
• Twist the cap on again tightly.
Replacement engine coolant must conform to ex-
act specifications
c>
page 222, 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 until 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 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.
223
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