How Does Water Get Inside the Car on Rainy Days?
4 Answers
The reasons for water getting inside the car on rainy days are as follows: 1. The drainage holes under the front windshield are blocked. 2. The car's air intake vents are blocked. 3. The door seals are damaged. 4. The seals around the front and rear windshields are broken. Precautions for driving on waterlogged roads are as follows: 1. Ensure the vehicle has power: First, make sure the vehicle has stable and sufficient power to maintain pressure in the exhaust pipe, preventing water from backing up into the exhaust and causing the engine to stall. 2. Drive at a steady speed: The driver should try to maintain a low gear and steady speed, avoiding sudden stops, gear shifts, or sharp turns of the steering wheel.
I've been driving for over twenty years and have encountered water leakage in the car several times during rain. The most common causes are cracked or aged rubber door seals, which allow rainwater to seep into the car through the gaps; clogged sunroof drainage pipes with leaves or debris, causing water to backflow into the car; windows not fully closed—even a one-millimeter gap can let water in; and clogged floor drain holes with mud or debris, leading to water accumulation inside. After a heavy rainstorm, I once found the carpets completely soaked and traced it back to a deformed trunk seal. I recommend checking the seals every six months to maintain their elasticity and integrity; cleaning the sunroof drainage channels; ensuring windows are fully closed every time you exit the car; and avoiding parking in low-lying areas prone to water accumulation. Regular maintenance can prevent water leakage risks, as prolonged exposure to water inside the car can lead to mold and corrosion of electrical wiring.
As a parent who frequently shuttles kids, car leaks during the rainy season give me headaches. Last time after heavy rain, I found water accumulation under the floor mats - turned out the passenger window regulator track seal was loose, letting rainwater drip in. The rear door seal had deformed from frequent opening/closing, allowing water ingress. Plus, there was a tiny hole in the sunroof corner where clogged leaves diverted drainage water into the cabin. After cleaning water stains, I sun-dried the interior to prevent bacteria growth and promptly repaired/replaced seals. Now I make it a habit to monthly clear door frame debris, conduct thorough pre-rainy-season inspections, and add a car cover for extra protection against leaks to maintain interior hygiene.
Just bought a new car and got startled when it started dripping inside during the first heavy rain. A friend helped check and said it might be due to the sunroof not being properly locked, leaving a gap, or aging sealant around the windshield letting water in. Mud clogging the drainage holes could also prevent water from flowing out. At the repair shop, they found water seeping through gaps in the trunk and fixed it by repairing the sealing strip. New drivers should learn to clean the car's drainage outlets monthly and ensure all entry points are tightly closed during rain to prevent water damage to electronic devices.
