Subaru Legacy Outback 2.5 EJ253 Head Gasket Seep
The EJ253 in Legacy/Outback develops external head gasket seepage — coolant seeps from the gasket join but does not enter the combustion chamber. This is a pre-failure warning. Proactive reseal prevents internal failure. Cost: £600-1,000.
Repair / Solution
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⚠️ Wrong Diagnosis?
No commonly reported misdiagnoses for this fault yet. If you have replaced a part that did not fix this Subaru Outback 2003 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.
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