Table of Contents
Advertisement
224
Ch e ck ing and filling
The location of the coolant expansion tank
can be seen in the engine compartment
illus-
tration
¢ page 218 .
To obtain an accurate read ing, the eng ine
must be switched off.
The expans io n tank in you r vehicle is equipped
with a n e lectr ic cool a nt level sensor.
When the coolant level is too low, the warning
light in the Auto-Check System
¢
page 18
w ill
blink until you add coo lant and the level has
been restored to no rm al. Even though the re is
an e lect ric coolant level sensor, we st ill rec-
ommend you check the coolant leve l from
time to time.
Coolant loss
Coolant loss may indicate a leak in the cooling
system. In the event of coolan t loss, the cool -
ing system should be inspected immedia t ely
by your authorized Audi dealer. It is not
enough merely to add coolant.
In a sealed system, losses can occur only if
the boiling poin t of t he coolant is excee d ed as
a result of overheating.
A
WARNING
The cooling system is unde r pressure and
can get ve ry hot. Reduce the risk of sca ld-
ing 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 carefu lly in
a counter-clockwise direction wh ile ap-
plying light, downward pressure on the
top of the cap .
- To avoid being burned, do not spill ant i-
freeze or coolant on t he exhaust system
or hot eng ine parts. Unde r certain condi-
tions, t he ethy lene g lycol in engine cool-
ant can catch fire .
(D
Note
Do not ad d any type of radiator leak sea l-
ant to your veh icle's engine coo lant. Add-
ing radiator repa ir fl uid may adverse ly af-
fect the funct ion and performance of your
cooling system and could result in damage
not cove red by your New Vehicle Limited
War ran ty.
Adding coolant
Be very careful when adding engine coolant.
Before you check anyth ing in the eng ine com-
partmen t , always read and heed all WARN-
INGS ¢ &. in Working in the engine compart -
ment on page 216.
.. Turn off the engine.
.. Let t he engine cool down.
.. Place a thick rag over the coolant expansion
tank ¢
page 223 , fig. 172
a nd carefully turn
the cap counter-clockwise ¢
,&..
.,. Add coo lant.
.. Twist t he cap on aga in
tightly.
Replacement engine coo lant must confo rm to
exact spec ificat ions ¢
page 223, Coolant.
We
recommend using on ly coo la nt add itive G12+
+, G13 or in an eme rgency G12+. Do
not
use a
different additive. In an emergency use plain
water until you can get the correct additive
and can restore the correct ratio . This sho uld
be done as soon as possible .
If you have lost a considerab le amount of
coolant , then you sho uld add cold antifreeze
and cold wate r on ly w hen the engine is cold.
Always use
new
engine coo lan t when refilling.
Do not fill coo lant abov e the "MAX" ma rk. Ex-
cess coo la nt w ill be fo rced out t hrough the
pressure relief valve in the cap when the e n-
gine becomes hot.
A
WARNING
-=
-
- The cooling system is under pressure and
can get very hot. Reduce the risk of
..,.
Advertisement
Table of Contents
