Does a damaged chassis guard need to be replaced?
2 Answers
If the car's chassis guard is damaged, it needs to be replaced. The chassis guard is an engine guard that effectively protects the vehicle's transmission and oil pan. Once damaged, it should be replaced. When replacing, consider installing an iron engine guard. Introduction to various types of engine guards: Plastic and resin guards provide some protection but are not very durable, especially in harsh environments where they may break quickly. However, their advantage is that they are lightweight and do not add much burden to the car. Iron guards have strong impact resistance and are more durable, but they are heavier and can produce significant noise when driving on gravel roads. Aluminum alloy guards are currently more recognized—they are lightweight, offer good protection (though slightly inferior to iron guards), and produce no noise, but they are more expensive. Polymer alloy (plastic-steel alloy) is an improved high-molecular polymer alloy material with performance similar to metal in various aspects, making it a direct substitute for metal. Engine guards made of polymer alloy provide good protection but are less durable than aluminum alloy, especially in climates with large temperature variations, where cracks may appear.
If the underbody guard plate is damaged, I would definitely replace it. As an owner who drives on mountain roads every day, I'm most afraid of small stones flying up and hitting the engine or oil pan. If the guard plate is broken and not replaced, one day a sharp turn could send a stone flying in, potentially cracking the engine. Repairs would cost at least several thousand dollars and be extremely dangerous. Whenever I inspect the underbody, I always check the guard plate. Even a small crack needs immediate attention, otherwise mud and moisture can get in and corrode other components, leading to bigger problems. Besides, replacing a guard plate isn't expensive—just 400-500 RMB—much cheaper and more convenient than major repairs. I recommend not delaying replacement, especially for those who frequently drive long distances. Early replacement means peace of mind. My car has never had any issues because I replace it promptly.
