Is the trunk sealed?
3 Answers
The trunk is sealed because it uses sealing strips for sealing, which also serve to prevent water intrusion, similar to the sealing strips on a refrigerator. Therefore, air can hardly escape from the trunk. The car trunk is essentially the vehicle's storage room, where you can place various items. Hidden features of the car trunk: 1. The elastic net on the trunk can be used to secure fragile items; 2. The trunk partition can create a relatively concealed and secure space. Many cars do not come with this partition, but it can be installed later; 3. The emergency escape handle, located inside the trunk, allows the trunk lid to be opened with a simple pull.
I once had a car that I drove for over ten years. Every time I washed it or when it rained, I always noticed a bit of moisture or small water droplets in the trunk. Later, I learned that the trunk isn’t completely sealed. The rubber seals around the door edges are the main components for dust and water resistance, but they aren’t airtight. Manufacturers leave small holes in the corners as vents or drainage ports. This is done to maintain air pressure balance inside the car, such as preventing doors from making a loud 'bang' or being hard to open when closing them at high speeds. The vents also help prevent musty odors from accumulating, and in humid conditions, they reduce the risk of rust or electronic malfunctions. It’s recommended to regularly check if the seals are aging or cracking by spraying water to test for leaks. New cars usually have better seals, but over time, they can wear out. Keeping the trunk clean to avoid blocking the drainage holes can extend the car’s lifespan and provide peace of mind.
As someone who frequently repairs cars, I tell my friends that the trunk isn't 100% sealed. The rubber seals around the doors mainly prevent dust and water ingress, but they're designed with ventilation holes and drainage channels to avoid excessive pressure and moisture buildup. If it were completely sealed, closing the door could cause air pressure issues or even damage components. You can check for leaks by shining a bright light to see gaps where light passes through. When seals age or get damaged, water can seep in, leading to rust or electrical shorts. The ventilation ports are located near the chassis, and proper airflow has many benefits, like preventing the trunk door from warping due to summer heat expansion. Replacing seals is simple, but don't block the holes yourself to avoid odor feedback. New cars are designed this way to balance safety and practicality, and proper maintenance can save you a lot of trouble.
