Coolant Level, Checking And Filling
WARNING: This page is about a different car, the 2022 Audi S4, 2022 Audi A4 Quattro, 2021 Audi S4, and 2021 Audi A4 Quattro. However, it is still accessible from the selected car via links, so may be relevant.
Special tools and workshop equipment required
- Protective Eyewear
- Safety Gloves
Procedure
CAUTION:
The cooling system is under pressure when the engine is warm. There is a risk of scalding due to hot steam and hot coolant.
Scalding the skin and other parts of the body is possible.
- Wear safety gloves.
- Wear protective eyewear.
- Reduce the pressure by covering the coolant expansion tank cap with a cloth and carefully opening it.
- The coolant level must be between the "min" and "max" markings when the engine is cold (example illustration).
- Coolant level may be on or above "max" marking with engine at operating temperature.
-- If necessary, fill the coolant again.