FixVault

Mixture Ratio:

WARNING: This page is about a different car, the 2017 Volkswagen Touareg, 2016 Volkswagen Touareg, and 2015 Volkswagen Touareg. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:

Use only distilled water for mixing coolant additives. By using distilled water the optimum corrosion protection can be reached.

Freeze Protection to Coolant Additive Ratio Distilled Water
-25 °C (-13 °F) approximately 40 % approximately 60 %
-36 °C (-33 °F) approximately 50 % approximately 50 %