Saturn 2008 AURA Green Line Hybrid Owner's Manual page 241

3. Inspect or replace the engine air cleaner/filter.
4. Align the filter correctly using the alignment tab.
5. Install the 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.
CAUTION:
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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.
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.
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