What are the reasons for water ingress in a sedan's trunk?
3 Answers
Possible reasons for water ingress in a sedan's trunk include poor sealing of the trunk's weatherstrip, inadequate sealing of the taillights, improperly closed sunroof, or clogged drainage pipes. Trunk: It serves as the car's storage compartment, enhancing daily convenience. The trunk typically contains a spare tire, vehicle emergency kit, onboard tool kit, warning triangle, fire extinguisher, and the emergency fuel filler door release. Trunk maintenance methods: When cleaning, use a brush to remove dirt, including the edges and channels of the trunk. Installing a trunk liner can prevent dirt or liquids from entering and damaging the trunk surface, while also preventing items in the trunk from sliding, thereby reducing the risk of contamination or damage.
I've been driving sedans for over a decade, and the most frustrating issue is trunk water leakage. Common causes include aging or damaged trunk seals - those rubber strips crack over time, allowing water to seep through the gaps. Clogged drainage holes are also frequent, especially when blocked by leaves or dirt, preventing rainwater from draining and causing accumulation. Additionally, worn seals around rear lights or separated body welds can lead to leaks. My old car experienced this - water intrusion caused moldy carpets and rust, requiring extensive cleanup. Therefore, I recommend regularly checking seal conditions, cleaning drainage holes, and addressing issues early to prevent bigger problems. A soaked trunk while driving not only affects cargo storage but also poses safety hazards.
My new car is only half a year old, but the trunk is always damp, soaking the luggage I put inside. I think the main reasons are issues with the sealing gasket—some rubber parts are of poor quality and crack under sun exposure. It’s also common for the drainage holes to get clogged with debris, causing water to backflow during rain. Additionally, loose or gap-filled hinges on the trunk lid can let water seep in. Last time I washed the car, I found a small puddle of water, and clearing the drainage holes helped a lot. Water ingress not only disrupts trips but can also lead to mold and damage. Now, I make it a habit to regularly inspect and clean to avoid costly repairs. Don’t underestimate this issue—especially during the rainy season, it’s best to check it out.
