What part of a trunk must be in contact to prevent leaks?

To prevent leaks in a vehicle's trunk, the weather strip plays a crucial role. The weather strip is a flexible seal that lines the edges of the trunk lid. Its primary function is to create a tight seal when the trunk is closed, which helps to block out water, dust, and other elements that could enter the trunk compartment.

When the trunk lid is closed, the weather strip compresses against the surface of the trunk's opening, ensuring that there is no gap for water to seep through. If this weather strip is damaged, worn out, or improperly installed, it can lead to leaks, resulting in potential damage to the contents of the trunk and creating an environment for rust and corrosion.

In contrast, while the quarter panel, rear body panel, and sail panel are important structural components of the vehicle's body, they do not primarily serve the function of sealing against water intrusion in the trunk area. Their roles are more related to structural integrity and aesthetic appearance rather than preventing leaks directly.