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Coolant Replacement

  1. Start the engine. Set the heater temperature control dial to maximum heat, then turn the ignition switch OFF. Make sure the engine and radiator are cool to the touch.
  2. Remove the radiator cap.
  3. Loosen the drain plug (A), and drain the coolant.
    Fig 1: Identifying Drain Plug
    G05448812Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. After the coolant has drained, torque the radiator drain plug.
  5. Remove, drain, and reinstall the coolant reservoir.
  6. Fill the coolant reservoir to the MAX mark (A) with Honda Long Life Antifreeze/Coolant Type 2 (P/N OL999-9001).
    Fig 2: Identifying Coolant Reservoir To MAX Mark
    G05448813Courtesy of AMERICAN HONDA MOTOR CO., INC.
  7. Pour Honda Long Life Antifreeze/Coolant Type 2 into the radiator up to the base of the filler neck.
    NOTE:
    • Always use Honda Long Life Antifreeze/Coolant Type 2. Using a non-Honda coolant can result in corrosion, causing the cooling system to malfunction or fail.
    • Honda Long Life Antifreeze/Coolant Type 2 is a mixture of 50% antifreeze and 50% water. Do not add water.

    Engine Coolant Capacities (Including the reserve tank capacity of 0.6 L (0.16 US gal)) 

    At Coolant Change: 

    • M/T: 5.2 L (1.37 US gal) 
    • A/T: 5.1 L (1.35 US gal) 

    After Engine Overhaul: 

    • M/T: 7.3 L (1.93 US gal) 
    • A/T: 7.2 L (1.90 US gal) 
    Fig 3: Filling Coolant
    G05448814Courtesy of AMERICAN HONDA MOTOR CO., INC.
  8. Install the radiator cap loosely.
  9. Start the engine, and let it run until it warms up (the radiator fan comes on at least twice).
  10. Turn off the engine. Check the level in the radiator and add Honda Long Life Antifreeze/Coolant Type 2 if needed.
  11. If the maintenance minder required engine coolant replacement, reset the maintenance minder (see RESETTING THE MAINTENANCE INFORMATION DISPLAY ), and this procedure is complete. If the maintenance minder did not require engine coolant replacement, go to step  12.
  12. Connect the Honda Diagnostic System (HDS) to the data link connector (DLC) (see step 2 on HOW TO USE THE HDS (HONDA DIAGNOSTIC SYSTEM) ).
  13. Make sure the HDS comunicates with the vehicle and the engine control module (ECM)/powertrain control module (PCM). If it doesn't communicate, troubleshoot the DLC circuit (see DLC CIRCUIT TROUBLESHOOTING ).
  14. Turn the ignition switch ON (II).
  15. Select BODY ELECTRICAL with the HDS.
  16. Select ADJUSTMENT in the GAUGE MENU with the HDS.
  17. Select RESET in the MAINTENANCE MINDER with the HDS.
  18. Select MAINTENANCE SUB ITEM 5 RESET with the HDS.
  19. Turn off the engine. Check the level in the radiator, and add Honda Long Life Antifreeze/Coolant Type 2, if needed.
  20. Put the radiator cap on tightly, then run the engine again, and check for leaks.
  21. Clean up any spilled engine coolant.
  22. Reset the multi-information display (see RESETTING THE MAINTENANCE INFORMATION DISPLAY ).