What Causes Water Leakage in a Car?
2 Answers
Water leakage in a car can be caused by the following reasons: 1. Condensation water dripping from the air conditioning system during use. 2. A malfunction in the radiator cooling system causing water leakage underneath the car. 3. Possible windshield washer fluid leakage; check the washer fluid reservoir, hoses, and connections for looseness or damage. Here are some methods to inspect and troubleshoot the issue: 1. Check if the radiator coolant is low, then inspect the cooling system hoses for looseness or damage, and look for any scratches or damage at the bottom of the radiator. 2. Ensure the coolant reservoir is not overfilled, as it may overflow when the temperature rises. 3. Inspect the windshield washer fluid reservoir, hoses, and connections for looseness or damage. 4. Determine if the dripping is caused by condensation water discharge from prolonged air conditioning use in hot weather, which is a normal phenomenon.
Last time my car leaked water, it was really scary. Later, I found out that the sunroof drain was clogged, causing rainwater to flow into the car and soak the carpet. In fact, there are many reasons for car water leaks. Common ones include aging body seals leading to rainwater leakage through door gaps, or clogged condensate drainage pipes in the air conditioning system dripping onto the footwell mats in hot weather. If the car's air conditioner drips water in summer, it might be due to a clogged evaporator drain hole, which needs cleaning. Also, the sunroof frame's sealing rubber can deform over time and cause leaks. That time, I spent some time cleaning the drain hole and fixed the issue, but in severe cases, new parts may need replacement. If the radiator or coolant tank cracks, the leaking coolant is green, while regular water is clear. Observing the color of the liquid on the ground after parking can help make a preliminary judgment. In short, don’t take water leaks lightly—they can damage circuit boards or promote mold growth. Getting timely repairs is key.
