Buick 2012 Regal Owner's Manual page 303

When to Inspect the Engine
Air Cleaner/Filter
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 Maintenance Schedule
on page 11 3 for more information.
If you are driving in dusty/dirty
conditions, inspect the filter at each
engine oil change.
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 covered with dirt, a new
filter is required.
To inspect or replace the engine air
cleaner/filter:
2.0L L4 Engine
1. Open the hood. See Hood on
page 10 5.
A. Electrical Connector
B. Air Duct Clamp
C. Screws (5)
Vehicle Care
2. Disconnect the outlet duct by
loosening the air duct clamp (B).
3. Disconnect the electrical
connector (A).
4. Remove the screws (C) on top
of the engine air cleaner/filter
housing.
5. Lift the filter cover housing away
from the engine.
6. Pull out the filter.
7. Inspect or replace the engine air
cleaner/filter.
8. Reverse Steps 2 through 4 to
reinstall the filter cover housing.
10-17