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Checking
and filling
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, antifreeze 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-
INGS <=>
.&.in Working in the engine compart-
ment on page 155.
(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-
dit ions . This is especially important if you
live in a region where the winter is extreme-
ly cold. If necessary, increase the proportion
of coolant add itive to 60%.
- When adding coolant addit ive to your cool-
ing system, remember:
- We recommend using only coolant addi-
tive G12++ or G13 for your vehicle. This
coolant additive is available at authorized
Audi dealers. Other types of ant ifreeze can
signif icant ly reduce corrosion protection.
The resu lting 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
funct ion and pe rformance of your cooling
system and could result in damage not cov-
ered by your New Vehicle Limited Warranty.
162
Checking the engine coolant level
Proceed carefully when checking the coolant .
Fig. 142
Conver tible top : serv ice pos it ion
Fig. 143
Conve rtible top storage bay : coolant expa nsion
tank
Before you check anything in the eng ine compart-
ment,
always read and heed all WARNINGS
c:>
.&.
in Working in the engine compartment on
page 155 and park your vehicle on a level su r-
face.
The coolant expansion tank is locat ed in the right
side of the convertib le top storage bay under the
round metal cover
cf;,
fig . 143. The convertible top
must be in the service position to check the cool-
ant level
i=;,
fig . 142.
Bringing the closed convertible top into the
service position
.,. Switch the ignition on.
.,. Pull and hold the convertib le top switch.
.,. Press and hold the rear window switch too until
the convertible top moves into the service posi-
tion <=> fig. 142.
Bringing the open convertible to into the
service position
.,. Switch the ignition on .
.,. Press and hold the convert ible top switch .
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