Coolant Level, Checking And Filling

Special tools and workshop equipment required

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).

Fig 1: Coolant Level, Checking after Repair
Courtesy of AUDI OF AMERICA, LLC
Coolant level may be on or above "max" marking with engine at operating temperature.

-- If necessary, fill the coolant again.