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Home >> Volkswagen >> 2021 >> Jetta S, Automatic Trans >> Repair and Diagnosis >> Maintenance >> Procedures >> General Information >> General Information >> Procedure Descriptions >> Cooling System, Checking Freeze Protection And Coolant Level >> Mixture Ratio

Mixture Ratio

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 (-32.8 °F) Approximately 50 % Approximately 50 %