Cadillac 2007 DTS - Manual (Page 363)

3. Remove the engine air cleaner/filter element
and any loose debris that may be found in the
air cleaner base.
4. Inspect or replace the air filter element.
Follow these steps to reinstall the cover to the
engine air cleaner/filter housing:
1. Align the two hinges located on the inboard
side of the cover.
2. Push the cover slightly down and towards the
engine to engage the tabs in the hinges and
align the two screws.
3. Tighten the two screws on the top of the
engine air cleaner/filter housing cover.
{ 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.
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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