Coolant System, Checking For Leaks: Notes

Special Tools And Workshop Equipment Required

Procedure

Fig 1: Identifying Coolant Reservoir Cap

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

CAUTION:

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.

-- Remove the cap -arrow- from the coolant expansion tank.

-- Position the :VAG1274B with the :VAG1274/8 on the coolant expansion tank.

Fig 2: Cooling System Tester V.A.G 1274 Connected To Coolant Reservoir

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Generate approximately 1.0 bar (14.5 psi) pressure using the cooling system tester hand pump.

-- If the pressure falls, search for leaks and correct the problem.