Prius L4-1.8L (2ZR-FXE) Hybrid (2010)
NOTICE:
Do not use any tools.
(2) Check that the O-ring is not deformed, cracked, or damaged.
(3) Check that the O-ring is not swollen.
(b) Check the reserve tank cap operation.
(1) Apply coolant (for inverter) to the O-ring and rubber packing before using a radiator cap tester.
(2) Install the reserve tank cap to the radiator cap tester.
(3) Pump the cap tester several times, and check the maximum pressure.
NOTICE:
When using the cap tester, tilt it 30° or more.
HINT
If the maximum pressure is less than the minimum standard value, replace the reserve tank cap.