Caution: When adding coolant, make sure the relay/fuse box cover is closed. Do not spill coolant on electrical connections or paint. If coolant is spilled, wipe it up immediately.
1. Move the interior heater knob to maximum heat. Make sure the engine and radiator are not hot to the touch.
2. Remove the radiator cap.
3. Loosen the drain valve and drain the coolant.
4. Remove the drain bolt from the cylinder block.
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5. Install a new sealing washer onto the drain bolt, apply sealant to the threaded portion and install the drain bolt in place, tightening it as specified.
6. Close the radiator drain valve.
7. Remove, drain and reinstall the expansion tank. Fill it halfway with water (judging by the MAX mark), then add antifreeze up to the MAX mark.
8. Mix the recommended amount of antifreeze with water in a clean container.
Note:
- Use only genuine HONDA coolant/antifreeze.
- For best corrosion protection, coolant concentration should be maintained at least 50% year-round. Coolant concentrations less than 50% do not provide adequate corrosion protection and freeze resistance.
- Coolant concentrations greater than 60% reduce heat transfer efficiency and are therefore not recommended.
Attention.
- Do not mix coolants/antifreezes of different brands.
- Do not add additional corrosion inhibitors or anti-corrosion products, they may be incompatible with the original coolant.
Volume of coolant to be filled (including expansion tank)
- *1: Engines B16A2, B16A4, B16A6.
- *2: Except for engines B16A2, B16A4, B16A6.
- *3: Engine B16A5.
- *4: D15Y4, D16Y8, D16Y9 engines.
- *5: Engines D14A4, DI424, D15Z5, D15Z6, D16Y6, D16Y7.
9. Fill the radiator with coolant up to the base of the filler neck.
10. Start the engine and let it run until it is fully warmed up, the radiator fan should turn on at least twice.
11. Turn off the engine. Check the radiator level and add coolant if necessary.
12. Install and tighten the radiator cap, then start the engine and check for leaks.