Section 14 (Engine Cooling System (H4DO)): Radiator: Inspection

WARNING: This page is about a different car, the 2013 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.

Check that the radiator does not have deformation, cracks or damage.
Check that the hose has no cracks, damage or loose part.
Remove the radiator cap, fill the radiator with engine coolant, and then install the radiator cap tester to the filler neck of radiator.

Fig 1: Inspecting Radiator For Leakage Using Radiator Cap Tester
Courtesy of SUBARU OF AMERICA, INC.
Apply a pressure of 157 kPa (1.6 kgf/cm² , 23 psi) to the radiator, and check the following items.
- Leakage from the radiator or its vicinity
- Leakage from the hose or its connections
CAUTION:
- Engine should be turned off.
- Wipe engine coolant from check points in advance.
- Be careful not to deform the filler neck of radiator when installing and removing the radiator cap tester.
- Be careful of engine coolant from spurting out when removing the radiator cap tester.