2015 Buick LaCrosse Owner Manual - Page 270

Vehicle Care 1. 2. 3. 4. Electrical Connector Air Duct Clamp Screws Secondary Air Hose 10-17 8. Inspect or replace the engine air cleaner/filter. 9. Reverse Steps 2-5 to reinstall the filter cover housing. Cooling System The cooling system allows the engine to maintain the correct working temperature. 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 (1). 4. Remove the screws (3) on top of the engine air cleaner/filter housing. 5. Disconnect the secondary air hose (4). 6. Lift the filter cover housing away from the engine air cleaner/filter housing. 7. Pull out the filter. { 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 1. Engine Cooling Fans (Out of View) 2. Coolant Surge Tank and Pressure Cap { 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.