2012 Cadillac CTS Owner Manual - Page 338

10-18 Vehicle Care 8. Attach the electrical connector to the air box. 9. Reinstall the side cover. How to Reinstall Engine Air Cleaner/Filter 1. Install the air cleaner into the air cleaner housing. The outer air cleaner filter seal must be fitted properly in the air cleaner housing. 2. Align the air cleaner housing cover tabs to the air cleaner housing. 3. Install the air cleaner housing cover. 4. Install the air cleaner housing cover screws. 5. Install the hose to the air cleaner housing mounting arm. The hose must be routed correctly. 6. Install the air cleaner outlet duct to the air cleaner housing. 7. Tighten the air cleaner outlet duct screw clamp. Cooling System The cooling system allows the engine to maintain the correct working temperature. When it is safe to lift the hood: { 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. Notice: 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. A. Electric Engine Cooling Fan(s) (Out of View) B. Coolant Surge Tank and Pressure Cap