Subaru WRX & WRX STI Manuals 2015 WRX & WRX STI Owner's Manual | Page 430

Maintenance and service/Cooling system Check the fuse and replace it if necessary. Refer to “Fuses” F11-41 and “Fuses and circuits” F12-9. If the fuse is not blown, have the cooling system checked by your SUBARU dealer. If frequent addition of coolant is necessary, there may be a leak in the engine cooling system. It is recommended that the cooling system and connections be checked for leaks, damage, or looseness. 11-17 of the reservoir while the engine is cool. 2.