Cadillac 2004 XLR - Manual (Page 242)

Engine Air Cleaner/Filter
See Engine Compartment Overview on page 5-12 for
location of engine air cleaner/filter.
When to Inspect the Engine Air
Cleaner/Filter
Inspect the air cleaner/filter at every oil change and
replace at the first oil change after 25,000 miles
(40 000 km).
How to Inspect the Engine Air
Cleaner/Filter
To inspect the air cleaner/filter, remove the filter from
the vehicle and lightly shake the filter to release
loose dust and dirt. If the filter remains caked with dirt, a
new filter is required.
To inspect or replace the filter, do the following:
1. Flip the clasps on the top of the engine air
cleaner/filter cover forward to unlatch the cover.
2. Lift the front of the cover at an angle and remove.
This is necessary due to the four tabs located on
the rear of the cover.
3. Remove the engine air cleaner/filter element and
any loose debris that may be found in the air
cleaner base.
4. Replace the air filter element.
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