Inspecting and Replenishing186
Cooling system
Coolant
The job of the coolant is to cool the engine.
The cooling system does not require any maintenance under normal operating conditions. The coolant consists of water with a concentration of coolant additive of 40 %. This mixture not only provides antifreeze protection down to -25°C but also protects the cooling and heating system from corrosion. It also prevents the formation of scale and significantly increases the boiling point of the coolant.
You must therefore not reduce the concentration of antifreeze agent in the coolant by adding water, also not during the summer months or in countries with a warm climate. The concentration of coolant additive in the coolant must be at least 40%.
You can increase the amount of antifreeze in the coolant if a higher concentration of antifreeze is necessary for climatic reasons but only up to 60% (antifreeze protection down to approx. -40°C). The antifreeze protection tails off above that concentration.
Vehicles exported to countries with a cold climate (e.g. Sweden, Norway, Finland) are already factory-filled with a coolant which offers antifreeze protection down to about -35°C. In these countries the concentration of coolant additive should be at least 50 %.
Coolant
The cooling system is factory-filled with coolant (purple in colour), which complies with the specification TL-VW 774 G.
We recommend that you use the antifreeze agent - G12 PLUS - PLUS (purple in colour).
We recommend that you contact your Škoda Service Partner if you have any ques-tions regarding the coolant or if you wish to fill up with a different coolant.
Your Škoda Service Partner can also supply you with the correct coolant additives.
Caution
•Other coolant additives may cause operational problems which, in partic-ular, involves significantly reducing the anticorrosion effect.
•Any faults or problems resulting from corrosion may cause a loss of coolant and, as a consequence of this, result in major engine damage.
Inspecting the coolant level
The coolant expansion bottle is located in the engine compartment on
the right.
– Switch the engine off.
– Open the bonnet ⇒ in “Working in the engine compartment” on
page 181.
– Check the level of coolant in the coolant expansion bottle ⇒fig. 172.
The coolant level when the engine is cold must lie between the “MIN”
and “MAX” markings. The level may also rise slightly above the
“MAX” marking when the engine is warm.
If the coolant level in the reservoir is too low, this is indicated by the warning light in the instrument cluster ⇒page 24. We nevertheless recommend inspecting the coolant level directly at the reservoir from time to time.
Fig. 172 Engine compart-ment: Coolant expansion bottle
ABAA
NKO A05F 20.book Page 186 Wednesday, April 2, 2008 1:02 PM
