Coolant Mixture Ratio
WARNING: This page is about a different car, the 2020 Audi A4 allroad, 2019 Audi A4 allroad, 2018 Audi A4 allroad, 2017 Audi A4 allroad, and 2017 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
There is a risk of corrosion damage from an unsuitable mixture of water and coolant additive.
- Only use distilled water for optimal corrosion protection
- Coolant (40%) and distilled water (60%) for freeze protection down to -25 °C (-13 °F)
- Coolant (50%) and distilled water (50%) for freeze protection down to -36 °C (-32.8 °F)
- Coolant. Refer to the Parts Information.