Skoda Octavia III 2013 Service Manual page 62

Octavia III 2013 ➤ , Octavia III 2014 ➤
Maintenance - Edition 12.2014
The scale -2- of the refractometer - T10007 A- is valid for the
coolant additives G13.
– Clean the measuring glass of the refractometer after inspect‐
ing the antifreeze.
Antifreeze protection of the coolant
WARNING
Antifreeze protection of the coolant must be ensured down to
about -25 °C.
In countries with an arctic climate, the antifreeze protection of
the coolant must be guaranteed to -35 °C.
If a greater antifreeze concentration is required for climatic
reasons, the concentration may be increased up to 60% (i.e.
antifreeze protection down to approx -40°C). Any further in‐
crease in concentration increase would reduce the antifreeze
protection and impair cooling efficiency.
Coolant mixture ratio
Antifreeze protection down to Coolant additive Drinking water
-25 °F
-35 °F
-40 °F
Replenishing coolant additive
Note
The cooling system is filled all year round with a mixture of drink‐
ing water and coolant additive with anti-corrosion agent. Coolant
additives prevent damage from frost and corrosion and the accu‐
mulation of lime scale while also raising the boiling point of the
coolant. For these reasons the cooling system must always be
filled all year round with coolant additive with anti-corrosion agent
offering these properties.
All coolant additives, approved by ŠKODA AUTO a.s., prevent
frost and corrosion damage as well as the formation of scale and
also increase the boiling point.
For these reasons you must use coolant additives 12 months a
year.
The higher boiling temperature of the coolant contributes to the
engine's reliability when the engine is stressed, especially in
countries with a tropical climate.
Other coolant additives may specifically impair the provided cor‐
rosion protection.
The resulting corrosion damage may lead to a loss of coolant and
subsequently cause major engine damage.
58
approx. 40 % approx. 60 %
approx. 50 % approx. 50 %
approx. 60 % approx. 40 %