2015 Buick Regal Owner Manual - Page 264

Vehicle Care To inspect or replace the engine air cleaner/filter: 1. Open the hood. See Hood on page 10-5. 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. 10-17 { 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. 2.4L L4 Engine without eAssist Shown, 2.4L L4 Engine with eAssist Similar 1. Screws 2. Air Duct Clamp 3. Electrical Connector { Caution 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.