Attention. 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 control to maximum heating. 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.
5. Install a new seal washer onto the drain bolt, apply sealant to the threaded portion, and install the drain bolt in place, tightening it as directed.
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 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, the coolant concentration should be maintained at a minimum of 50% year-round. Coolant concentrations less than 50% will 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 different brands of coolant/antifreeze.
- Do not add additional corrosion inhibitors or anti-corrosion products as they may be incompatible with the original coolant.
Volume of coolant to be filled (including expansion tank)
- *1: Engines V16A2, V16A4, V16A6.
- *2: Except for engines V16A2, V16A4, V16A6.
- *3: Engine V16A5.
- *4: D15Y4, D16Y8, D16Y9 engines.
- *5: Engines D14A4, DI424, D15Z5, D15Z6, D16Y6, D16Y7.
9. Fill the radiator with coolant to the base of the neck.
10. Start the engine and let it run until it warms up completely; the radiator fan should turn on at least twice.
11. Stop 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.