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Note
•
Before winter sets in, have the coolant checked to see if the
coolant additive in your vehicle is sufficient to meet the climate
conditions. This is especially important if you live in a region where
the winter is extremely cold. If necessary , increase the proportion of
coolant additive to 60%.
•
When adding coolant additive to your cooling system,
remember:
- We recommend using only coolant additive G12++ (check the
label) for your vehicle. This coolant additive is available at autho-
rized Audi dealers. Other types of antifreeze can significantly
reduce 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 radiator repair fluid may adversely affect the
function and performance of your cooling system and could result
in damage not covered by your New Vehicle Limited Warranty . •
Checking
the engine
coolant
level
The engine coolant level can be checked with a quick
glance.
Fig. 267 Engine
compartment : Coolant
expansion tank
Before you check anything in the engine compartment,
always read and heed all WARNINGS =>
&
in "Working in
the engine compartment"
on page 307.
Turn off the ignition.
Read the engine coolant level from the coolant expan-
sion tank => fig . 267. With a cold engine, the coolant level
should be between the "min" and "max" markings. When
the 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
illustration => page
308.
To obtain an accurate reading, the engine must be switched off.
The expansion tank in your vehicle is equipped with an electric
coolant level sensor.
When the coolant level is too low, the warning light in the Auto-
Check System => page 31 will blink until you add coolant and the
level has been restored to normal. 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 immedi-
ately by your authorized 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 result of overheating.
&
WARNING
The cooling system is under pressure and can get very hot. Reduce
the risk of scalding from hot coolant by following these steps.
.,_
Vehic le care
I
I
Technical data
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