Buick LaCrosse: How to Inspect the Engine Air 
Cleaner/Filter - Engine Air Cleaner/Filter - Vehicle Checks - Vehicle Care - Buick LaCrosse Owners ManualBuick LaCrosse: 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:

    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 for more inform ...

    2.4L L4 Engine
    2.4L L4 Engine 1. Remove the six screws on top of the engine air cleaner/filter housing. 2. Lift the filter cover housing away from the engine air cleaner/filter housing. 3. Pull out the ...

    See also:

    Checking engine coolant level
    Check the coolant level in the reservoir when the engine is cold. If the coolant level is below the MIN level (B)- , add coolant to the MAX level (A) . If the reservoir is empty, check the coola ...

    Gasoline containing alcohol and ethers, "Oxygenated fuels"
    Some fuel suppliers sell gasoline containing "oxygenates" which are usually alcohols or ethers. In some areas, state or local laws require that the service pump be marked indicating use ...

    Automatic Locking Retractor Mode (ALR) — If Equipped
    In this mode, the shoulder belt is automatically prelocked. The belt will still retract to remove any slack in the shoulder belt. The Automatic Locking Mode is available on all passenger-seating ...