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Home >> Porsche >> 2019 >> Cayenne Turbo >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 19 Engine - Cooling 4.0L -- 9YA - Cayenne (9YA) >> WM, 190101 Checking Cooling System >> Checking Cooling System >> Checking Coolant Expansion Tank For Leaks

Checking Coolant Expansion Tank For Leaks

  1. Check the cap.
    G15211761Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Tester on cap

    1. 1.1  > V.A.G 1274B - Cooling system tester with  > V.A.G 1274B/15 - adapter for cooling system tester  must be fitted on the cap.
    2. 1.2  Use > V.A.G 1274B - cooling system tester  to create overpressure of about 2 bar. 
    3. 1.3  Check the pressure:

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

    4. 1.4  If the overpressure does not behave as described:

      Replace the cap.

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