Civic Si L4-2.0L (2004)
Coolant: Service and Repair
Replacement
1. Start the engine. Set the heater temperature control dial to maximum heat, then turn off the ignition switch. Make sure the engine and radiator are
cool to the touch.
2. Remove the radiator cap.
3. Remove the splash shield.
4. Loosen the drain plug (A), and drain the coolant.
5. Remove the reserve tank drain cap (A), and drain the coolant.
6. After the coolant has drained, tighten the radiator drain plug securely, and install the reserve tank drain cap securely.
7. Fill the reserve tank to the MAX mark (A) with Honda All Season Antifreeze/Coolant Type 2 (P/N OL999-9001).
