Download 2018 Honda Accord 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 radiator 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 install the radiator cap. 5. Remove the left and right front grille cover. 6. Remove the front bumper: • Apply masking tape as shown. • Remove the six self-tapping screws and 17 clips as shown. • With the help of an assistant, release the seven retaining tabs on each side. • With the help of an assistant, remove the front bumper and unplug the vehicle connectors (if equipped).
• Place the front bumper on a blanket. 7. Connect the negative cable to the battery, then turn the ignition to ON. Turn the steering wheel fully clockwise, and remove the two clips from the left front inner fender. 8. Turn the ignition to OFF, then disconnect the negative cable from the battery. 9. Remove the intake air duct. 10. Using a tape measure, measure and mark the heater harness as shown.