What Causes Water Leakage While Driving?
2 Answers
Reasons for water leakage while driving: 1. Sunroof leakage, mainly caused by aging seals or clogged drainage holes, which can be resolved by cleaning the drainage holes or replacing the seals; 2. Door leakage, due to faulty or aged door waterproof seals, it is recommended to directly replace the seals; 3. Trunk leakage, caused by poor sealing of the trunk seal or tail light seal. If water accumulation is found in the spare tire compartment of the trunk, it should be taken seriously, and repairs should be done as soon as possible. Solutions for car water leakage issues are generally very simple and low-cost, but it is crucial to address leakage problems promptly. If water seepage is left unattended, it can lead to mold growth in the interior and potential risks of electrical short circuits.
Last time my car had a water leak, after checking for a long time, I found out the sunroof drain holes were clogged, causing rainwater to back up and flood the interior. Actually, other common causes include aging and deformed door seals—during heavy rain, water seeps in through the door gaps. If the AC drain tube is blocked, condensation water will leak onto the passenger-side carpet when the AC is on. And if the windshield sealant cracks, you’ll see water streaks flowing down the A-pillar during car washes. Once, a friend’s car leaked because rust had perforated the seams of the underbody panels, which was a real hassle to fix. I recommend regularly cleaning the sunroof drainage channels, checking the elasticity of door seals during car washes, and addressing leaks immediately to avoid mold growth inside the car—that would be a nightmare.
