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Check For Coolant Leaks: Notes

Fig 1: Identifying Special Tools - Cooling System Leak Test
G03092682Courtesy 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.
  1. Remove cap and attach tester.
    Fig 2: Testing Coolant Expansion Tank Cap
    G03092683Courtesy of PORSCHE OF NORTH AMERICA, INC.
  2. 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
    G03092684Courtesy of PORSCHE OF NORTH AMERICA, INC.
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