What are the disadvantages of installing a trunk spring?

[HannahAnn]

Disadvantages of installing a trunk spring: Over time, it may exert pulling force on the locking mechanism, potentially damaging it, which is harmful to the vehicle body. Opening the trunk may also cause excessive force that could push against the rear window. Here is an introduction to relevant knowledge about car trunks: 1. Definition: The car trunk is essentially the storage compartment of the vehicle. A trunk mat can effectively protect the trunk, preventing dirt or liquids from entering and eroding the trunk surface, as well as preventing items inside from sliding. 2. Functions: Anti-slip, waterproof, anti-stain, and protective features. Made of high-density foam material, it provides sound insulation and excellent shock absorption. It offers comprehensive protection to every corner of your trunk against various intrusions.

[DeNicole]

Installing a trunk spring might seem labor-saving, but it comes with significant risks. I've seen many car owners encounter issues after installation, with the most common being sudden breakage due to poor spring quality. The trunk lid weighs at least several kilograms, and if it falls directly, it could not only injure someone but also easily damage the bumper. Over time, the extra tension can deform the original hinges because it exceeds the designed load capacity. Additionally, some aftermarket springs are too strong, requiring you to press down with your full body weight to close the trunk, which can be embarrassing if you slip on a rainy day. These non-OEM parts also have a short lifespan, lasting at most six months before needing replacement, making the installation costs a net loss. If you want convenience, it's better to just install an electric tailgate.

[StBrady]

Just helped a friend deal with a trunk spring failure, sharing some firsthand experience. These aftermarket springs alter the rear lid's center of gravity, causing annoying creaking sounds on bumpy roads. The worst part is in winter when low temperatures make the metal brittle—springs can jam, preventing the trunk from closing properly, leading to rainwater leakage that rusted the spare tire. Modifications can also damage the original wiring; some require dismantling taillights for electrical connections, risking short circuits. Many springs sold online lack quality checks—advertised to bear 30kg but can't even handle 15kg. Not to mention the fines for illegal modifications. If you must use them, opt for models with damping mechanisms and avoid cheap, unverified products.

[MarcusDella]

As someone who's been there, I advise against installing it lightly. My car developed issues within three months of installation—the springs pulled cracks at the frame connections. The mechanic said the original car structure wasn't designed for extra tension, and deformation is inevitable over time. The switch feel also deteriorates, either becoming too loose to close properly or requiring excessive force to press. Rainwater gets into the springs, causing rust and sticking. These aftermarket parts only last a few months, making repeated replacements a hassle. If you really want automatic opening/closing, it's better to buy genuine parts. They're more expensive but safer and worry-free.

[CharlieAnn]

This modification does more harm than good. I regretted helping my neighbor install it last time. Firstly, it's very difficult to match the spring tension - either the trunk won't close properly or it springs open too fast. Secondly, there's always this unpleasant metal friction sound with every open/close operation. Most importantly, the trunk gap becomes larger, allowing dust and rainwater to easily seep in, and the spring has already scratched the paint on the rear bumper. Long-term load bearing will cause the tailgate to sag, and repairs could cost thousands. Many insurance companies even deny claims citing illegal modifications. I recommend keeping the original hydraulic struts for maximum reliability.