Cooling System, Checking For Leaks: Procedure

WARNING: This page is about a different car, the 2015 Audi RS 5, 2014 Audi RS 5, and 2013 Audi RS 5. However, it is still accessible from the selected car via links, so may be relevant.

Engine At Operating Temperature.

WARNING:

Risk Of Scalding Due To Hot Steam And Hot Coolant.

The Coolant System Is Under Pressure When The Engine Is Warm.
Reduce Pressure By Covering Coolant Reservoir Cap With A Cloth And Carefully Opening.

-- Open The Coolant Reservoir Cap.

-- Position The Cooling System Tester:VAG1274B With The Cooling System Tester - Adapter:VAG1274/8 On The Coolant Reservoir.

Fig 1: Positioning V.A.G 1274 B With V.A.G 1274/8 On Coolant Reservoir

Courtesy of AUDI OF AMERICA, LLC

-- Generate Approximately 1.0 bar (14.5 psi) pressure Using The Cooling System Tester Hand Pump.

-- If Pressure Falls, Search For Leaks And Correct Problem.