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Checking
and Filling
areas, into open streams or down sewage
drains.
- Recycle used engine oil by taking it to a used
engine oil collection facility in your area, or
contact a service station.
Cooling
system
Coolant
The engine coolant performs two functions: it
keeps the engine from overheating and it pro -
tects the engine from freezing in the winter .
The cooling system is sealed and generally re-
quires little attention .
The cooling system has been filled at the factory
with a permanent coolant which does not need to
be changed . The coolant consists of a mixture of
specially conditioned water and the manufactur -
er's glycol-based coolant additive G13 antifreeze
with anticorrosion additives (50% for USA mod-
els · 60% for Canadian models). This mixture
'
both assures the necessary frost protection and
protects metal components
in the engine ' s cool-
ing system from corrosion and scaling. It also
raises the boiling point of the coolant.
Do not reduce the concentration of the coolant in
the summer by adding plain water. The propor-
tion of coolant additive must be at least 50%
but not more than 60% to maintain antifreeze
protection and cooling efficiency. If the coolant
frost protection is too low, the coolant could
freeze and damage the vehicle heating and en-
gine cooling system .
For year-round driving, antifree ze is added at the
factory for temperatures
down to:
- - 31 °F ( - 3 5 °C) USA
- - 40 °F ( - 40 °C) Canada.
If you must add coolant, use a mixture of water
and coolant additive. Mixing the coolant additive
with distilled water is recommended.
_&
WARNING
Before you check anything in the engine com-
partment, always read and heed all WARN-
222
INGS
~ &. in Working in the engine compart-
ment on page 216.
(D
Note
- Before winter sets in, have the coolant
checked to see if the coolant additive in your
vehicle is sufficient to meet the climate con-
ditions. This is especially important if you
live in a region where the winter is extreme-
ly cold . If necessary, increase the proportion
of coolant additive to 60%.
- When adding coolant additive to your cool-
ing system, remember:
- We recommend using only coolant addi-
tive G12++ or G13 (check the label) for
your vehicle. This coolant additive is avail-
able at authorized Audi dealers. Other
types of antifreeze can significantly re-
duce corrosion protection. The resulting
corrosion can cause a loss of coolant and
serious engine damage .
- Do not add any type of radiator leak sealant
to your vehicle's engine coolant. Adding ra -
diator repair fluid may adversely affect the
function and performance of your cooling
system and could result in damage not cov-
ered by your New Vehicle Limited Warranty.
Checking the engine coolant level
The engine coolant level can be checked with a
quick glance.
Fig. 189
Engine compart ment: cover on the coolant expan-
sion tan k
Before you check anything in the engine compart-
ment, always read and heed all WARNINGS
~
A
in Working in the engine compartment on
page 216.
..,.
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