
Door leakage may be caused by loose door seals, door deformation, or a blocked drain pipe in the air conditioning evaporator, preventing the drainage of condensation water. The specific details are as follows: 1. Inspection and repair: In such cases, it is recommended to contact the local 4S store for inspection and repair. Alternatively, you can negotiate with the 4S store or the manufacturer. You can report the issue to the relevant department and wait patiently, while keeping your and other communication devices accessible for easy contact by the manufacturer's staff. 2. Caused by door leakage: Driving leakage should be caused by door leakage. If the window regulator has been replaced, it may be due to improper adhesion of the door waterproof membrane after the regulator replacement, as the waterproof membrane needs to be peeled off during the regulator replacement. If the waterproof membrane is not properly adhered, heavy rain can cause water to enter the car.

My previous car also had the problem of rainwater leaking through the doors, probably due to aging door seals or the door not being closed tightly. Here’s how I checked it myself: First, close the door and listen for any unusual sounds—if there’s noise or poor sealing, try adjusting the door hinges. Then, feel the sealing strips around the door frame; if they’ve hardened, cracked, or have gaps, they’ve aged and need replacement. You can easily buy matching models online and replace them yourself. Another common issue is clogged drainage holes at the bottom of the door—blocked by leaves or mud, preventing water from draining and causing leaks inside. Just use a thin wire or straw to clear the holes. Regularly checking these areas during car washes can prevent bigger problems like rust or moldy interiors from water accumulation.

To address door leaks, my first step is to inspect the drainage system. There are small holes at the bottom of the door specifically for draining water. When these get clogged, water can backflow into the car, causing leaks around the door edges. Using a cotton swab or compressed air to clear them provides a quick fix. For long-term prevention, regularly clean these holes, especially after the rainy season. The door seals are also crucial. If they age or fail, rainwater can easily seep in. Check their softness and integrity by hand, and replace them if necessary—it's an inexpensive fix. Also, ensure windows are tightly closed during car washes or windy days to prevent water pressure from forcing its way through door gaps. These small actions help maintain a dry interior, preventing rust and odors.

Door leaks are mostly caused by issues with the door seals or poor drainage. If the seals are old and cracked, they should be replaced. Check if the door aligns properly when closed; if the hinges are loose, tighten them. If the drainage holes are clogged, water can't drain out, causing rainwater to accumulate inside the door and seep back in—simply clean them out. Simple self-checks can save repair costs, so prioritize these points.

It's really annoying when the car door leaks during rain. I use a towel to absorb the water temporarily as an emergency measure. The key is to check if the door frame sealing strip is intact—replace it if it's damaged. Also, make sure the drainage holes at the bottom of the door aren't clogged with debris; clearing them can help alleviate the problem. Immediately take the car to a repair shop to check the source of the leak to prevent water damage from spreading to the chassis or electrical components.

I've seen owners only focus on the sealing strips but neglect cleaning the drain holes. When these small holes get blocked, water can't drain and leaks into the door gaps. Don't overlook checking these holes; doors that don't close tightly due to hinges or deformation can also cause water seepage through gaps. Regular of these areas prevents water leakage and extends the vehicle's lifespan.


