Checking Coolant Reservoir Cap For Leaks

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Cap on coolant reservoir

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Tester on coolant reservoir cap

1. 2.1 V. A. G 1274B - Place cooling system tester  with V. A. G 1274B/15 - adapter for cooling system tester  on the coolant expansion tank cap.
2. 2.2  Use V. A. G 1274B - cooling system tester  to create overpressure of about 2 bar  .
3. 2.3  Check the pressure:

   The overpressure must drop to 1.8 to 1.6 bar  and stay at this level.

4. 2.4  If the overpressure does not behave as described:

   Replacing the cap on the coolant expansion tank.

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Cap on coolant reservoir