Subaru Impreza Manuals 2012 Impreza Owner's Manual | Page 367

Maintenance and service the three projections on the air cleaner case into the slits on the air cleaner case cover. 6. Install in the reverse order of removal. 11-13 Spark plugs It may be difficult to replace the spark plugs. It is recommended that you have the spark plugs replaced by your SUBARU dealer. The spark plugs should be replaced according to the maintenance schedule in the “Warranty and Maintenance Booklet”. CAUTION 3. Open the air cleaner case and remove the air cleaner element. 4. Clean the inside of the air cleaner case and case cover with a damp cloth and install a new air cleaner element. Make sure the cables are replaced in the correct order. & Recommended spark plugs For the recommended spark plugs, refer to “Electrical system” F12-7. 5. To install the air cleaner case, insert