Is Trunk Leakage Harmful to the Car?

[KennedyLynn]

It has significant impacts. Here are the relevant details: Causes of leakage: Worn or aged sealing strips or trunk deformation can lead to trunk leakage, which must be addressed promptly to avoid damaging components inside the trunk. Sealing strips: The waterproofing of various parts of the car body is ensured by sealing strips. These rubber strips have certain strength and hardness but can deform under pressure. High usage frequency also leads to wear, making the sealing strips highly susceptible to damage. Hazards of leakage: It can easily cause rust in the trunk, and in severe cases, perforation may occur. The spare tire compartment in the trunk is positioned lower, making it prone to water accumulation if leakage occurs. The inability to expel moisture and water vapor can lead to dampness, mold, and rust in the car's interior components.

[VanBriella]

A leaking trunk is no small issue—it can have significant consequences. With some experience in auto repairs, I've seen this problem frequently. If water gets into the trunk, it can soak the carpet, spare tire well, and any stored items, leading to mold and bacterial growth over time. Turn on the AC, and you’ll notice an unpleasant musty odor, which isn’t good for health. More critically, if water seeps into electrical circuits or control units—such as affecting onboard sensors or the locking system—it can cause short circuits or even unexpected malfunctions. Once, a friend ignored a trunk leak, and the car’s floor panel rusted, costing thousands in repairs and reducing its resale value. My advice? Don’t delay. First, inspect the trunk’s sealing rubber for wear or check if drainage holes are clogged. Test it with a high-pressure hose. If you spot an issue, take it to a professional shop immediately. Left unattended, small leaks can escalate into major problems, compromising driving safety and the vehicle’s lifespan.

[DelWalker]

As a car owner who drives daily, I have personally experienced the hassle of trunk leakage, and the impact is quite significant. Whether driving on the highway or during rainy seasons, water accumulation in the trunk can soak belongings, ruin carpets and partitions, and create a foul odor that makes the cabin air stale—even the air conditioning can't eliminate the smell. Over time, the water may also corrode the metal parts of the car body, leading to structural loosening or rust-through, which compromises the vehicle's stability. Once, I encountered this issue when water even leaked into the electronic system, causing the taillights to malfunction and nearly resulting in an accident. I immediately took the car to the dealership for inspection and found that aged seals were the culprit—replacing them solved the problem. I recommend that car owners regularly check their trunks and pay extra attention to corners after rain to detect moisture early. Addressing issues promptly can prevent minor problems from escalating into major ones.

[McDaniela]

The impact of trunk water leakage is more serious than imagined, so be vigilant. Accumulated water can cause interior materials to rot, such as carpets swelling and deforming after being soaked, items in the spare tire compartment getting completely wet, and mold growth affecting the healthy air inside the car. The electrical system is even worse—if water seeps into control circuits, it may cause trunk opening/closing malfunctions or even system-wide errors in the entire vehicle, significantly increasing repair costs. From my experience in car maintenance, the root causes are often failed seals or clogged drainage holes, which can be prevented with regular cleaning. Don’t wait for problems to arise—routine care can help you avoid these pitfalls.