Download 2015 Honda Civic 2 and 4-Door Engine Block Heater Installation Instructions – 1. Disconnect the negative cable from the battery. 2. Allow the engine and all cooling system components to cool down. 3. Place a clean drain pan under the radiator drain plug, then remove the drain plug from the bottom of the radiator to drain the coolant. Remove the radiator cap to increase the flow. 4. Drain the coolant completely, then reinstall the radiator cap. 5. Attach masking tape to the windshield below each wiper blade as shown. 6. Open the hood, and remove the right wiper cover. 7. Remove the left wiper cover. 8. Close the hood, and remove the left windshield wiper arm. 9. Remove the right windshield wiper arm. 10. Open the hood, and remove the right cowl cover. 11. Remove the left cowl cover. 12. Remove the cover, and the center cowl cover. 13. Remove the under cowl panel. 14. Remove the front bumper: • On each side, attach tape to the areas shown. • Wrap a shop towel around the hood latch. • Remove the four self-tapping screws, ten short clips, and two long clips. • On each side, release three retaining tabs. • On each side, release five retaining tabs. • With the help of an assistant, remove the front bumper and unplug the vehicle connectors. Place the front bumper on a blanket to prevent damage. 15. Get the heater harness.