Why is the radiator prone to leaking?
2 Answers
The reason why the radiator is prone to leaking is due to aging, which causes damage. The car radiator, also known as the heat exchanger, is part of the car's cooling system. The radiator in the engine's water cooling system consists of three parts: the inlet chamber, the outlet chamber, the main plate, and the radiator core. The coolant flows inside the radiator core, while air passes outside the radiator core. The hot coolant cools down by dissipating heat to the air, and the cold air heats up by absorbing the heat dissipated by the coolant. Therefore, the radiator functions as a heat exchanger. Radiators can be installed in three different ways: same-side inlet and outlet, opposite-side inlet and outlet, and bottom inlet and outlet. Regardless of the installation method, it is essential to minimize the number of pipe fittings, as more fittings not only increase costs but also potential risks.
I've seen too many cases of radiator leaks in my over ten years of driving. The main causes are material aging and corrosion. As the car ages, the radiator material gradually rusts and perforates due to the effects of coolant. High temperatures increase internal pressure, causing plastic or aluminum components to expand and crack. It's also common for the outer shell to burst when freezing in winter. Another reason is improper maintenance, such as not changing the coolant regularly, which increases acidity and accelerates corrosion, or loose connections causing leaks. External damage, like stones hitting the surface, can also lead to leaks. I once had a radiator burst during a long-distance trip due to overheating caused by clogged cooling system debris. It's recommended to check the coolant level and color annually, ensure all joints are tight, and change the coolant every two years to effectively prevent leaks. In short, small issues can turn into major engine repairs if neglected.
