Why is a new car leaking water?
2 Answers
Car water leakage is a common phenomenon, which mostly occurs at the opening and closing points of doors and the trunk. The main cause of this issue is usually related to the waterproofing strips, i.e., poor-quality, aged, or cracked rubber waterproofing strips, allowing rainwater to seep in. 1. Common car water leakage scenarios: The waterproofing strips embedded around the doors are prone to misalignment. If rainwater enters the car, check the waterproofing strips. Leakage around the doors is mostly due to the surrounding waterproofing strips; inspect for any cracks or peeling. If part of the waterproofing strip is lifted or twisted, rainwater often seeps in from there. Severe deformation requires replacement. 2. Precautions: Although water leakage inside the car is not a major issue, it should not be ignored. Rainwater that seeps in from the outside or is brought in by occupants can be absorbed by floor mats, seats, and other interior decorations, lingering inside the car for a long time. As temperatures rise, this creates a "breeding ground" for bacteria, posing health risks to the car's occupants.
I remember a few years ago, shortly after buying a new car, I noticed water accumulation inside after rain. Upon closer inspection, it turned out to be caused by uneven installation of the sunroof seal, leading to leakage. If the sunroof frame was misaligned during welding at the factory or the sealing strip was of poor quality, rainwater could easily seep into the headliner, wetting the carpets and potentially causing rust. I went straight to the dealership, and they resolved the issue by replacing the seal for free. This problem isn’t too uncommon in new cars. I recommend checking for gaps around the sunroof edges and getting it repaired promptly within the warranty period to avoid moisture damage to electronics or musty odors. Also, regularly cleaning the sunroof drainage holes to keep them clear can extend the lifespan of the components.
