Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSSUBARU2016LEGACY 2.5IREPAIR AND DIAGNOSISENGINE MECHANICALCOOLING SYSTEM (MECHANICAL)ENGINE COOLING SYSTEM (H4DO)RADIATORINSPECTION
2016 Subaru Legacy 2.5i
Engine Cooling System (H4DO): Radiator: Inspection
2016 Subaru Legacy 2.5iSECTION Inspection
- 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.
- Apply a pressure of 157 kPa (1.6 kg/cm2
, 23 psi) to the radiator and check the following points:
- Leakage from the radiator or its vicinity
- Leakage from the hose or its connectionsCAUTION:
- Engine should be turned off.
- Clean the check points.
- 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.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.