2015 Buick Regal Owner Manual - Page 263

10-16 Vehicle Care 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: 1. Disconnect the outlet duct by loosening the air duct clamp (3). 2. Disconnect the electrical connector (2). 3. Remove the screws (1) on top of the engine air cleaner/filter housing. 4. Lift the filter cover housing away from the air cleaner/filter housing. 5. Pull out the filter. 6. Inspect or replace the engine air cleaner/filter. 7. Reverse Steps 2-4 to reinstall the filter cover housing. 2.0L L4 Turbo Engine 1. Screws 2. Electrical Connector 3. Air Duct Clamp Do not remove the cap to check the fluid level or to top off the fluid level. Remove the cap only when necessary to add the proper fluid until the level reaches the MIN line. Engine Air Cleaner/Filter See Engine Compartment Overview on page 10-6 for the location of the engine air cleaner/filter. When to Inspect the Engine Air Cleaner/Filter Inspect/replace the air cleaner/filter at the scheduled maintenance intervals listed in Maintenance Schedule on page 11-3. If you are driving in dusty/dirty conditions, inspect the filter at each engine oil change.