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Ch e ck ing and filling
engine is warm, the level may be slightly
above the "MAX" marking.
The location of the coolant expansion tank
can be seen in the engine compartment
illus-
tration ¢ page 234 .
To obtain an accurate read ing, the engine
m ust be sw itched off.
The expans ion tank in your vehicle is equipped
with an e lectr ic coolant level sensor.
When the coolant level is too low, the warning
light in the Auto-Check System ¢ page 30 will
blink until you add coo lant and the level has
been restored to norma l. Even though the re is
a n e lect ric coolant level sensor, we st ill rec-
ommend you check t he coolant leve l from
time to time.
Coolant loss
Coolant loss may indicate a lea k in the cooling
system. In the event of coolant loss, the cool-
ing system should be inspected immediately
by your author ized Audi dealer. It is not
enough merely to add coolant.
In a se ale d system, losses can occur only if
the boiling point of t he coolant is exceeded as
a result of overheat ing.
(D
Note
Do not add any type of radiator lea k seal-
ant to your vehicle's eng ine coolan t . Add-
ing radia t o r repair fluid may adversely af-
fect the function and performance of your
cooling system a nd could res ult in damage
not covered by your New Vehicle Limited
Warranty.
Adding coolant
Be very careful when adding engine coolant.
Before you chec k anything in t he engine com-
partment, alwa ys read and heed all WARN-
INGS
¢
A
in Working in the engine compart-
ment on page 232.
.,. Turn off the engine .
.,. Let the engine coo l down .
.,. Place a thick rag ove r the coolant expansion
tank ¢ page 239, fig. 210 and ca refull y turn
the cap counter-clockwise ¢
.&_ .
.,. Add coo lant.
.,. Twist the cap on again tightly.
Replacement engine coo lant must conform to
exact spec ificat ions ¢ page 239, Coolant.
Even in a n emergency, if coolant addi-
t ive Gl2++, Gl2 + or Gl2 is
not
ava ilable, do
not
use a d ifferent addit ive. Use plain water
instead unt il you can get the cor rect add itive
and can restore the correct ratio. This shou ld
be done as soon as possible .
If you have lost a considerab le amount of
coolant, then you should add cold ant ifreeze
and cold wate r on ly w hen t he eng ine is cold.
Always use new engine coo la nt 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.
- Turn off the engine and allow it to coo l
down.
- Protect your face, hands and arms from
escaping fluid and steam by covering
the cap w ith a large, t hick rag.
- Turn the cap slow ly 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 engi ne pa rts. Unde r certain
cond it ions, the ethyle ne g lycol in e n-
gine coolant can catch fire .
- Antifreeze is po isonous. Always sto re an-
tifree ze in its o riginal container and well
ou t of the reach of chi ld ren.
..,
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