What to Do When Water Leaks into the Car Door During Rain?
2 Answers
The bottom of the car door is equipped with a drainage valve. After water enters, the valve will automatically open under pressure to facilitate drainage. If the amount of water entering is significant, it is recommended to visit a 4S shop to remove the door and dry the moisture with tissues or similar materials to avoid water accumulation. Below is additional information: 1. Drainage Holes: Cars are generally equipped with drainage holes at the bottom of the doors when leaving the factory. After opening the door, the water inside the door will flow out through these drainage holes. If the drainage holes are clogged, the water inside the door cannot be discharged. Once the drainage holes are blocked, immediate repair is necessary to prevent more serious faults. 2. Causes of Water Entry: The most common reasons for water entering the door include rainwater flowing into the door through the sealing strips outside the windows; another scenario is during regular car washing, where water can similarly enter the door through the sealing strips outside the windows. If the accumulated water inside the door is not removed promptly, it can increase the vehicle's weight and fuel consumption. In severe cases, it may lead to corrosion, rust, damage to electrical circuits, and malfunctioning of window switches.
A few days ago, my car's door started leaking water whenever it rained, with sloshing sounds from the accumulated water inside. After checking, it's likely that the drainage holes at the bottom of the door are clogged, or the sealing strip has deteriorated. Don't rush to repair it yet—you can try handling it yourself: use a small tool like a wire or toothpick to poke and clear debris from the small holes at the door's base; then inspect the rubber sealing strip for any cracks or damage, and temporarily patch it with sealant. If it still leaks, there might be an issue with the welding points inside the door, requiring a professional inspection. Prolonged water accumulation not only causes rust on the inner door panel but may also corrode the door lock or window motor. It's recommended to test for leaks with a water spray weekly as a preventive measure. Parking away from low-lying areas can also reduce water ingress issues.
