2015 Cadillac XTS Owner Manual - Page 283

10-14 Vehicle Care 1. 2. 3. 4. 5. 6. Screws Secondary Air Hose Lower Air Duct Clamp Lower Electrical Connector Upper Electrical Connector Upper Air Duct Clamp { 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. 1. Disconnect the lower and upper outlet ducts by loosening the lower (3) and upper (6) air duct clamps. 2. Disconnect the lower (4) and upper (5) electrical connectors and wiring attachments from the cover. 3. Remove the screws (1) on top of the cover. 4. Lift the filter cover housing away from the engine. 5. Pull out the filter. 6. Inspect or replace the engine air cleaner/filter. 3.6L V6 Engine Twin Turbo 7. Reverse Steps 1-5 to reinstall the filter cover housing. { 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. Cooling System The cooling system allows the engine to maintain the correct working temperature.