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Park your vehicle on a level surface.
~
Switch
off
the ignition.
~
Read the eng ine coolant level from the coolant
expansion tank
c>
fig. 191,
c>
page 220,
fig. 188.
With a cold engine, the coolant level
should be between the "m in" 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
i=>page220.
To obtain an accurate read ing, the eng ine must
be switched
off.
The expansion tank in your vehicle is equipped
with an electric coolant level sensor.
When the coolant level is t oo low, the warning
light in the Auto-Check System
c:>
page 15
will il-
luminate unti l you add coolant and the level has
been restored to norma l. Even though there is an
electric coolant level sensor, 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 cooling
system should be inspected immed iate ly by your
author ized 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 t he risk of scalding from
hot coolant by following t hes e 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, th ick rag.
- Turn the cap slowly and very carefu lly in a
counte r-clockwise direct ion while applying
light, downward pressur e on the top of the
cap.
Checking
and Fillin g
- To avoid being burned, do not sp ill anti-
freeze or coolant on the exhaust system or
hot engine parts. Under certa in cond itions,
the ethylene glycol in engine coolant can
cat ch fire.
(D
Note
Do not add any type of radiator leak sea lant
to your vehicle's engine coolant . Adding radia-
tor repair fluid may adversely affect the func-
tion and pe rformance of your cooling system
and could result in damag e 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-
me nt, always read and heed all WARNINGS
c>
.&.
in Working in the engine compartment on
page 218.
~
Requirement: There must be a residua l 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 expansion
t ank
c:>page 22 4, fig. 191
and carefully twist
t he cap count er-clockwise
c:>
.&,.
~
Add coolant mixed in the correct rat io
c:>
page 224, 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 224, Coolant.
We recommend using only coolant add it ive G12+
+, G13 or in an emergency G12+. Do not use a
different additive. In an emergency use plain wa-
ter unt il you can get the correct add itive and can
restore the correct ratio. This should be done as
soon as possib le.
If you have lost a considerab le amou nt of cool-
ant, then you shou ld add cold antifreeze and cold
water only whe n the eng ine is cold.
Always use
new
engine coolant when refilling.
225
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