Subaru Legacy BN/BS (2015-2019) Service Manual: Differential gear oil

General diagnostic table inspection

Symptom or troublePossible causeRemedy1. Oil leakage(1) Worn, scratched, or incorrectly seated front or side oil seal. Scored, battered or excessively worn sliding surface of companion flange.Repair o ...

Replacement

CAUTION:• Gear oil is extremely hot just after driving. Be wary of receiving burns.• Be careful not to spill the differential gear oil on exhaust pipe. If gear oil is spilled, wipe it off ...

Other materials:

Engine lubrication system trouble in general inspection
Before performing diagnostics, make sure that the engine oil level is correct and no oil leakage exists.TroublePossible causeCorrective actionWarning light remains ON.a. Oil pressure switch failure Cracked diaphragm or oil leakage within switchReplace. Broken spring or seized contactsReplace.b ...