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Coolant Replacement

WARNING: This page is about a different car, the 2008 Acura TL and 2007 Acura TL. However, it is still accessible from the selected car via links, so may be relevant.
  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. Loosen the drain plug (A), and drain the coolant.
    Fig 1: Removing Drain Plug
    G05457848Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. Install a rubber hose (A) on the drain bolt (B) located at the rear of the engine block, then loosen the drain bolt.
    Fig 2: Rubber Hose And Drain Bolt With Torque Specification
    G05457849Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. When the coolant stops draining, tighten the drain bolt. Remove the rubber hose.
  6. Tighten the radiator drain plug securely.
  7. Remove, drain, and reinstall the coolant reservoir.
  8. Fill the coolant reservoir to the MAX mark (A) with Acura Long Life Antifreeze/Coolant Type 2 (P/N OL999-9001).
    Fig 3: Identifying Coolant Reservoir Max Mark
    G05457850Courtesy of AMERICAN HONDA MOTOR CO., INC.
  9. Pour Acura Long Life Antifreeze/Coolant Type 2 into the radiator up to the base of the filler neck.
    NOTE:
    • Always use Acura Long Life Antifreeze/Coolant Type 2 (P/N OL999-9001). Using a non-Acura coolant can result in corrosion, causing the cooling system to malfunction or fail.
    • Acura Long Life Antifreeze/Coolant Type 2 is a mixture of 50 % antifreeze and 50 % water. Do not add water.

    Engine Coolant Refill Capacities (Including the coolant reservoir capacity of 0.6 L (0.16 US gal)) 

    At Coolant Change: 

    M/T: 6.3 L (1.66 US gal) 

    A/T: 6.3 L (1.66 US gal) 

    After Engine Overhaul: 

    M/T: 8.1 L (2.14 US gal) 

    A/T: 8.0 L (2.11 US gal) 

    Fig 4: Filling Engine Coolant
    G05457851Courtesy of AMERICAN HONDA MOTOR CO., INC.
  10. Loosely install the radiator cap.
  11. Start the engine, and let it run until it warms up (the radiator fan comes on at least twice). Turn off the engine.
  12. If the maintenance minder required engine coolant replacement, reset the maintenance minder

    (see MAINTENANCE MINDER ). If the maintenance minder did not require engine coolant replacement, go to step 13.

  13. Connect the Honda Diagnostic System (HDS) to the data link connector (DLC) (see step 2 in GENERAL TROUBLESHOOTING INFORMATION ).
  14. Make sure the HDS communicates 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 (PART 2) ).
  15. Turn the ignition switch ON (II).
  16. Select BODY ELECTRICAL with the HDS.
  17. Select ADJUSTMENT in the GAUGE MENU with the HDS.
  18. Select RESET in the MAINTENANCE MINDER with the HDS.
  19. Select MAINTENANCE SUB ITEM 5 RESET with the HDS.
  20. Check the level in the radiator, and add Acura Long Life Antifreeze/Coolant Type 2, if needed.
  21. Tightly install the radiator cap, then run the engine, and check for leaks.
  22. Clean up any spilled engine coolant.
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