Safety Precautions When Working On Cooling System
WARNING: This page is about a different car, the 2021 Audi S4 and 2021 Audi A4 Quattro. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Risk of scalding due to hot coolant
The cooling system is under pressure when the engine is warm. There is a risk of scalding due to hot steam and hot coolant.
-- Wear safety gloves.
-- Wear protective eyewear.
-- Reduce the pressure by covering the coolant expansion tank cap with a cloth and carefully opening it.