
Use a car vacuum cleaner to blow dry the area. After wiping it clean, immediately proceed to air dry the vehicle, primarily to evaporate any remaining water inside the car. Check the electronic components inside the car (such as the airbag computer, etc.) for any signs of short circuits or malfunction. If water entered the car through the air conditioning intake, it is necessary to replace the air filter.

The other day when I was driving home, I noticed the passenger side floor was soaking wet, with water splashing every time I stepped on it – quite annoying. I suspect it's either due to aging door seals or clogged drainage holes, which are common issues for cars that have been used for several years. First, avoid turning on the AC. Use a dry towel to soak up the water, then air out the car for a few hours – a fan can help speed up drying to prevent mold growth. Next, check the small holes at the bottom of the door and clear any leaves or mud with a thin wire to ensure proper drainage. If water still leaks in, the seals are likely damaged, and you’ll need to replace them at an auto repair shop. Pay attention to these details during routine maintenance, especially on rainy days, to avoid musty odors or rust. Untreated water leaks can cause electrical shorts or corrode metal components, posing serious risks. A simple DIY fix can save trouble – spending a little time on inspection now ensures peace of mind while driving later.

When encountering water accumulation under the car floor, I usually first check the drainage holes located near the doors or chassis, and clear any blockages like mud or leaves. Then, inspect the sealing strips for cracks or misalignment—just a touch can reveal issues. If they're worn out, replace them promptly. Use a hairdryer or natural ventilation to remove moisture, preventing long-term dampness from causing electrical problems. During regular car washes, don’t forget to inspect these areas, and adding floor mats can help prevent issues. The main sources of water ingress are often door or window gaps, so stay vigilant during maintenance. After all, untreated water accumulation can damage carpets and electronic components. These simple fixes save hassle and avoid costly major repairs.

Don't panic if water gets in. First, I use a dry cloth to absorb the water, then leave the car doors open to air out for a whole day. Check if the drainage holes in the doors and undercarriage are clogged, and gently remove any debris. If the weather is humid, place some desiccants inside the car to absorb moisture. I've found that regularly inspecting the condition of the seals while driving helps identify issues early, saving both money and hassle. If a large amount of water enters, it's best to take the car to a shop for inspection to prevent part corrosion or odors. Safety first—handle minor issues yourself.


