What Causes the Cloudiness in Haval's Coolant Reservoir?
3 Answers
Coolant cloudiness requires timely replacement. The cloudiness in coolant occurs due to prolonged alternation between hot and cold conditions, leading to vapor formation and engine scale deposits that cause turbidity, which can harm the engine. It should be replaced promptly. Below is additional information: 1. Function: Coolant prevents the freezing and expansion of liquid in radiators during cold seasons, which could otherwise crack the radiator or damage the engine block—a feature water lacks. Coolant is not just for winter use; it should be used year-round. In standard vehicle maintenance, the engine coolant should be replaced annually. 2. Other Functions: Anti-corrosion properties. Engines and their cooling systems are made of various metals, including copper, iron, aluminum, steel, and solder. Over time, these metals can corrode and rust when exposed to high temperatures and water. However, antifreeze coolant not only avoids causing corrosion to the engine cooling system but also provides anti-corrosion and rust-removal benefits.
I've driven quite a few cars in my lifetime, and murky coolant reservoirs in Haval vehicles are quite common. I believe it's caused by aging coolant or internal rusting. Over time, the antifreeze deteriorates with more sediment, making the reservoir look foggy, just like a rusty old teapot. It could be due to internal engine corrosion, poor sealing allowing impurities to enter, or accidentally adding water in the past without proper cleaning, which accelerates the murkiness. This issue affects heat dissipation, making the engine temperature rise easily in summer, and in severe cases, it can lead to engine overheating and major problems. From my experience, regularly changing the coolant is key—Haval recommends replacing it every two years or 40,000 kilometers, and don't skimp by using low-quality products. Also, check the reservoir for cracks or leaks and keep it clean—it saves a lot of hassle. I used to neglect this, ending up spending unnecessary money on repairs. Now I've learned my lesson—I make sure to inspect it during every maintenance check to keep the system running smoothly.
The causes of cloudy coolant are quite diverse, and I reckon they mainly stem from internal system issues. Rust and sediment are the primary culprits, such as rust flaking off the radiator or corrosion particles from the engine block getting into the coolant. Another possibility is mixing with other liquids, like oil or water, which can make the coolant appear murky and dirty. If maintenance is neglected and the coolant isn’t replaced on time, contaminants will accumulate further. This condition reduces heat exchange efficiency and can easily lead to engine overheating warnings or component damage. During inspection, if the Haval coolant reservoir shows yellowish-brown rust stains, it’s a red flag, while a milky appearance may indicate oil-water mixing due to leaks. Prevention is straightforward: use the OEM-recommended coolant type, clean the reservoir during each maintenance session, and promptly fix leaks. Neglecting minor issues over time can escalate into major failures—I prefer small repairs to save money and ensure safety.
