Subaru Impreza Manuals 2014 Impreza Owner's Manual | Page 402

Maintenance and service/Air cleaner element 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. & Replacing the air cleaner element Replace the air cleaner element according to the maintenance schedule in the “Warranty and Maintenance Booklet”. Under extremely dusty conditions, replace it more frequently. It is recommended that you always use genuine SUBARU parts. 11-13 3. Loosen the screw on the clam