Buick Regal: Engine Air Cleaner/Filter - Vehicle Checks - Vehicle Care - Buick Regal Owners ManualBuick Regal: Engine Air Cleaner/Filter

See Engine Compartment Overview  for the location of the engine air cleaner/filter.

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 mile) interval. See Scheduled Maintenance  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:

2.0 L L4 Engine

1. Open the hood. See Hood .

A. Electrical Connector

A. Electrical Connector
B. Air Duct Clamp
C. Screws (5)

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.

2.4 L L4 Engine

1. Open the hood. See Hood .

A. Screws (6)

A. Screws (6)
B. Air Duct Clamp
C. Electrical Connector

2. Disconnect the outlet duct by loosening the air duct clamp (B).
3. Disconnect the electrical connector (C).
4. Remove the screws (A) 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.

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. Use caution when working on the engine and do not drive with the air cleaner/filter off. WARNING
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. Use caution when working on the engine and do not drive with the air cleaner/filter off.

Notice: If the air cleaner/filter is off, dirt can easily get into the engine, which could damage it.

Always have the air cleaner/filter in place when you are driving.

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