Buick LaCrosse Owner's Manual page 275

Change the fluid and filter at the
intervals listed in
, and be sure
to use the fluid listed in
The engine air cleaner/filter is
located in the engine compartment
on the driver side of the vehicle.
See
for more information
on location.
Inspect the air cleaner/filter at the
scheduled maintenance intervals
and replace it at the first oil change
after each 80 000 km (50,000 mi)
interval. See
for more information.
If you are driving in dusty/dirty
conditions, inspect the filter at each
engine oil change.
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 covered with dirt, a new
filter is required.
1. Screws
2. Air Duct Clamp
3. Electrical Connector
To inspect or replace the engine air
cleaner/filter:
1. Open the hood. See
.
2. Disconnect the outlet duct by
loosening the air duct clamp (2).
3. Disconnect the electrical
connector (3).
4. Remove the screws (1) on top of
the engine air cleaner/filter
housing.
5. Lift the filter cover housing away
from the engine air cleaner/filter
housing.
6. Pull out the filter.
7. Inspect or replace the engine air
cleaner/filter.
8. Reverse Steps 2 4 to reinstall
the filter cover housing.