Cooling System, Checking For Leaks: Procedure: Notes
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2018 Audi S7, 2018 Audi RS 7, 2017 Audi S7, 2017 Audi RS 7, and 2016 Audi S7. However, it is still accessible from the selected car via links, so may be relevant.
- Engine at operating temperature.
WARNING:
The cooling system is under pressure when the engine is warm. 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.
-- Open the coolant reservoir cap -arrow-.
-- Position the :VAG1274B with the :VAG1274/8 on the coolant reservoir.
-- Generate approximately 1 bar (14.5 psi) pressure using the cooling system tester hand pump.
-- If pressure falls, search for leaks and correct problem.