What are the reasons for water leakage around car doors?
2 Answers
The reasons for water leakage around car doors are as follows: Aging of sealing strips: With long-term use of the car, the waterproof sealing strips at the openings of doors and trunks may age or even crack. As a result, rainwater can seep through these gaps into the car, leading to water leakage. Solution: Replace with new sealing strips. Clogged drainage outlets: Window leakage is relatively common, where heavy rain outside leads to minor leaks inside. The main cause of window leakage is the blockage of the sunroof drainage slots' outlets by excessive dust and debris, resulting in water accumulation and leakage. Self-inspection and cleaning are recommended. Solution: Regularly clean the drainage outlets.
Last time my car door was leaking, it took me a long time to figure out the cause. Most likely, the sealing rubber around the door had aged and hardened, losing its elasticity, allowing rainwater to seep in through the gaps. Another common issue is the clogging of the drainage holes at the bottom of the door, especially if you often park under trees—fallen leaves and small dirt particles can easily block those small holes, trapping water inside that then leaks into the car through the door seams. I also checked the window seals to see if the glass regulator wasn’t properly adjusted, causing gaps. The solution is quite simple: first, clean out the drainage holes using a small stick or brush to unclog them; if the sealing strip is cracked, just order a new one online and replace it. Don’t underestimate this problem—water entering the cabin can soak the carpets, leading to mold and unpleasant odors, and may even rust metal components, affecting safety. Regularly cleaning the drainage holes during car washes can prevent this issue in advance.
