2007 Saturn Aura Owner's Manual - Page 318

{CAUTION: Operating the engine with the air cleaner/filter off can cause you or others to be burned. The air cleaner not only cleans the air; it helps to stop flames if the engine backfires. If it is not there and the engine backfires, you could be burned. Do not drive with it off, and be careful working on the engine with the air cleaner/filter off. 3. Inspect or replace the engine air cleaner/filter. 4. Align the filter correctly using alignment tab. 5. Install cover by guiding the tabs on the rim of the top cover into the bottom hinges and turn the cover down to close it. 6. The spring clips will engage easily, if the cover is properly seated. Notice: If the air cleaner/filter is off, a backfire can cause a damaging engine fire. And, dirt can easily get into your engine, which will damage it. Always have the air cleaner/filter in place when you are driving. 318