2011 Subaru Forester Owner's Manual - Page 363

11-16 Maintenance and service Air cleaner element WARNING Do not operate the engine with the air cleaner element removed. The air cleaner element not only filters intake air but also stops flames if the engine backfires. If the air cleaner element is not installed when the engine backfires, you could be burned. 1) 2) "FULL" level mark "LOW" level mark CAUTION . Be careful not to spill engine coolant when adding it. If coolant touches the exhaust pipe, it may cause a bad smell, smoke, and/or a fire. If engine coolant gets on the exhaust pipe, be sure to wipe it off. . Do not splash the engine coolant over painted parts. The alcohol contained in the engine coolant may damage the paint surface. 6. Pour the coolant and fill to the reservoir tank's "FULL" level mark. 7. Put the radiator cap back on and tighten firmly. At this time, make sure that the rubber gasket in the radiator cap is correctly in place. 8. Start and race the engine at 2,000 to 3,000 rpm for 5 to 6 times within 40 seconds. 9. Stop the engine and wait until the coolant cools down (122 to 1408F [50 to 608C]). If there is any loss of coolant, add coolant to the radiator's filler neck and to the reserve tank's "FULL" level. 10. Put the radiator cap and reservoir cap back on and tighten firmly. CAUTION When replacing the air cleaner element, use a genuine SUBARU air cleaner element. If it is not used, there is the possibility of causing a negative effect to the engine. The air cleaner element functions as a filter screen. When the element is perforated or removed, engine wear will be excessive and engine life shortened. It is not necessary to clean or wash the element.