Editing Subaru Forester (section)

===Maintenance===
All of the 2.5-liter 4-cylinder engines for this generation have a timing belt made of rubber and cord. A belt must be replaced at {{convert|105,000|mi|km}}. These engines are [[interference engines]], meaning that if the timing belt breaks or stretches, the pistons will hit the valves, requiring an engine teardown, and a likely rebuild. Also, if this belt is replaced around 105,000 miles, it is a good idea to change the water pump, thermostat, belt tensioner and all the idler pulleys for this belt. The water pump and thermostat are behind this belt. In Australia for the Series II (MY06) cars, Subaru changed the recommended service interval for the timing belt replacement from 100,000 kilometers to 125,000 kilometers. The 2.5-liter 4-cylinder engine in the first-generation Foresters featured head gaskets which were prone to premature failure. For 2003 and later, this problem was addressed with a revised, higher performing design, but is still a problem.<ref>{{cite web|title=Subaru Head Gasket Problems Explained Part II|url=https://allwheeldriveauto.com/subaru-head-gaskets-problems-explained-part-ii/|url-status=live|archive-url=https://web.archive.org/web/20201112031240/https://allwheeldriveauto.com/subaru-head-gaskets-problems-explained-part-ii/|archive-date=November 12, 2020|access-date=November 21, 2020|website=All Wheel Drive Auto Repair|date=April 30, 2012 }}</ref>