Check For Coolant Leaks: Notes

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Fig 1: Identifying Special Tools - Cooling System Leak Test

Courtesy of PORSCHE OF NORTH AMERICA, INC.

SPECIAL TOOLS - COOLING SYSTEM LEAK TEST

Item

Designation

Special tool

A⁽¹⁾

Tester for cooling system tightness test

commercially available

B⁽¹⁾

Adapter for cap tight- ness test

commercially available

⁽¹⁾	For explanation see Fig 1.

NOTE:

Perform the leak test only on a cold engine.

Remove cap and attach tester.

Fig 2: Testing Coolant Expansion Tank Cap
Courtesy of PORSCHE OF NORTH AMERICA, INC.
Pump the cooling system up to an excess pressure of 1.3 bar. If the pressure decreases, locate the leak and remedy the fault. Check pressure relief valve(s) in the cap. Screw the tester, adapter and cap together.

Fig 3: Testing Coolant Expansion Tank Cap
Courtesy of PORSCHE OF NORTH AMERICA, INC.