Filling and bleeding the cooling system
Attention.
- Do not remove the radiator cap when the engine is hot. High-pressure hot fluid escaping from the radiator can cause severe burns.
- Close the relay box cover before adding coolant. Fill fluid carefully to avoid splashing electrical parts or painted surfaces. If coolant is spilled, wipe it up immediately.
1. Make sure the engine and radiator are cold.
2. Remove the radiator cap.
3. Remove the drain plug and drain the coolant.
4. Tighten the radiator drain plug securely.
5. After draining the engine coolant, clean the reservoir.
6. Fill the radiator with water through the filler neck and tighten the cap.
Note: System pressure may cause water to escape through the radiator cap. Therefore, it should be poured slowly, periodically squeezing the radiator hoses.
7. Warm up the engine until the cooling fan turns on several times, then increase the idle speed.
8. Wait for the engine to cool down.
9. Repeat steps 1 to 8 until the drained water is clear.
10. Fill with a mixture of coolant and water (5:5) (for tropical zones - 4:6) slowly through the filler neck. To facilitate the removal of air from the system, you can gently compress the upper and lower hoses.
Note:
- Use only branded antifreeze and coolant.
- For best corrosion protection, the antifreeze concentration should be maintained at a level of at least 35% throughout the year.
- Coolant containing less than 35% antifreeze may not provide sufficient protection against corrosion or freezing.
- The use of coolant concentrations above 60% is not recommended as they reduce the cooling efficiency.
Attention.
- Do not mix antifreeze and coolants of different brands.
- Do not use additional anti-corrosion additives as they may not be compatible with the coolant.
11. Start the engine and wait until the coolant starts to circulate. When the cooling fan starts to run and the coolant circulates, fill the coolant through the radiator cap.
12. Repeat step 11 until the cooling fan turns on 3-5 times and bleed air from the cooling system.
13. Install the radiator cap and fill the expansion tank with coolant up to the mark "MAX".
14. Start the engine at idle and wait until the cooling fan turns on 2-3 times.
15. Stop the engine and allow the coolant to cool.
16. Repeat steps 10 to 15 until coolant level stops dropping, bleed air from cooling system.
Note:
- After removing air from the cooling system and topping up the coolant when it is completely cool, recheck the coolant level in the expansion tank within 2-3 days after replacing the coolant.
- Coolant capacity: Petrol engines: 6.8 liters. Diesel engines: 8.5 liters.
Checking the Radiator Cap
1. Remove the radiator cap, wet its seal with engine coolant, then install the cap on the pressure tester.
2. Pressurize 93-123 kPa (1.6 l)
3. Check for pressure drop.
4. If the pressure drops, replace the radiator cap with a new one.
Checking the tightness of the cooling system
1. Wait for the engine to cool down, then carefully remove the radiator cap and check the coolant level (add if necessary), then install a pressure tester on the radiator filler neck.
2. Pressurize the cooling system to 93 - 123 kPa.
3. Check for engine coolant leaks and pressure drop on gauge.
4. If pressure drops, check hoses, radiator and water pump for leaks. If no leaks are found, check the heater core, cylinder block and cylinder head.
5. Remove tool and replace radiator cap.
Note: Check for engine oil in the coolant and/or coolant in the engine oil.