Coolant Replacement

Wait until the engine is cool, then carefully remove the radiator cap.
Remove the engine undercover (see SPLASH SHIELD REPLACEMENT ).
Loosen the drain plug (A), and drain the coolant.

Fig 1: Identifying Radiator Drain Plug
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Remove the drain bolt (A) from the rear side of the engine block.

Fig 2: Engine Block Drain Bolt And Washer With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
After the coolant has drained, reinstall the drain bolt with a new washer (B).
Tighten the radiator drain plug securely.
Remove, drain, and reinstall the coolant reservoir.
Fill the coolant reservoir to the MAX mark (A) with Honda Long Life Antifreeze/Coolant Type 2.

Fig 3: Identifying Coolant Reservoir MAX Marking
Courtesy of AMERICAN HONDA MOTOR CO., INC.
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 coolant reservoir capacity of 0.44 L (0.116 US gal)):

At Coolant Change: 4.41 L (1.165 US gal)

After Engine Overhaul: 4.90 L (1.294 US gal)

Fig 4: Filling Engine Coolant
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Loosely install the radiator cap.
Start the engine, and let it run until it warms up (the radiator fan comes on at least twice).
Turn off the engine. Check the level in the radiator, and add the recommended coolant, if needed.
Put the radiator cap on securely, then start the engine again, and check for leaks.
Clean up any spilled engine coolant.
If the Maintenance Minder required engine coolant replacement, reset the Maintenance Minder (see RESETTING THE MAINTENANCE MINDER ), and this procedure is complete. If the Maintenance Minder did not require engine coolant replacement, go to step 16.
Turn the ignition switch to LOCK (0).
Connect the HDS to the DLC (see GENERAL TROUBLESHOOTING INFORMATION ).
Turn the ignition switch to ON (II).
Make sure the HDS communicates with the vehicle and the PCM. If it does not communicate, troubleshoot the DLC circuit (see DLC CIRCUIT TROUBLESHOOTING ).
Select GAUGE in the BODY ELECTRICAL with the HDS.
Select ADJUSTMENT in the GAUGES with the HDS.
Select MAINTENANCE MINDER in the ADJUSTMENT with the HDS.
Select RESET in the MAINTENANCE MINDER with the HDS.
Select MAINTENANCE SUB ITEM 5 RESET with the HDS.
Install the engine undercover (see SPLASH SHIELD REPLACEMENT ).