Subaru Legacy BN/BS (2015-2019) Owners Manual: Engine coolant

Checking the coolant level

1) "FULL" level mark
2) "LOW" level mark

Check the coolant level at each fuel stop.

1.  Check the coolant level on the outside of the reservoir while the engine is cool.
2.  If the level is close to or lower than the "LOW" level mark, add coolant up to the "FULL" level mark. If the reserve tank is empty, remove the radiator cap and refill as required.
3.  After refilling the reserve tank and the radiator, reinstall the caps and check that the rubber gaskets inside the radiator cap are in the proper position.

Changing the coolant

It may be difficult to change the coolant.

Have the coolant changed by your SUBARU dealer if necessary.

The coolant should be changed according to the maintenance schedule in the "Warranty and Maintenance Booklet".