Is it necessary to replace a broken car underbody shield?

[StErin]

It is necessary to replace a broken car underbody shield. The need for an underbody shield depends on the driving area. Installing an underbody shield can prevent the intrusion of mud and sand, effectively protecting the engine. It also effectively prevents the intrusion of rain, snow, and acidic water sources, protecting the engine or related chassis components from premature aging, corrosion, and rust. Here are other factors to consider when installing an underbody shield: Reduced heat dissipation performance, which can affect the engine's cooling to some extent. Prone to causing abnormal noises due to prolonged use or installation issues, which may lead to loosening, displacement, and resulting noises. Easy accumulation of foreign objects. Due to certain gaps, foreign objects (such as small stones) may get stuck (between the shield and the engine bottom) or roll on top of the shield, causing noises. More difficult maintenance. For example, routine maintenance of certain car models may require an additional step of removing and reinstalling the shield. Replacement method: It should be done at a repair shop because before installing the underbody shield, some pre-treatment of the chassis is required, such as simple cleaning and rust removal. After lifting the vehicle, align the shield and secure it with screws.

[LaRiley]

A damaged underbody guard plate must be taken seriously—it acts like the car's armor, protecting critical components such as the engine oil pan and fuel tank from damage caused by flying stones or water splashes. Once, I drove on a mountain road with a cracked guard plate, and the crack expanded, resulting in a flying stone cracking the transmission case. The repair cost me five to six thousand yuan, far more expensive than a new guard plate. Generally, minor damage can be temporarily fixed with glue or welding, but if there's a large hole or severe deformation, a complete replacement is necessary. Cheaper guard plates cost a few hundred yuan, while those for high-end cars may exceed a thousand. This expense shouldn’t be skimped on, as it poses significant safety risks. Pay attention to road conditions during daily driving, avoid bumpy areas, and have the guard plate inspected regularly during maintenance to prevent bigger troubles.

[VanOmar]

I've driven for several years and had the underbody guard plate damaged twice. The first time, I thought it was no big deal and delayed replacing it, but rainwater ended up corroding the chassis wiring harness, leading to expensive and troublesome repairs. If there's a crack, first assess the severity: If you mainly drive on smooth city roads, a small hole in the guard plate might not cause immediate issues. However, if you frequently travel to suburban areas or construction sites, rocks and mud can easily get in and damage other components. The cost of a new guard plate ranges from 500 to 1,000, but not replacing it could result in even higher repair costs or even breakdowns. If you're experienced, you can save on labor costs by DIY installation with parts bought online. After weighing the pros and cons, prioritize safety and durability—don’t hesitate to replace it when necessary.

[OQuinn]

My suggestion is to handle the broken chassis guard plate based on the situation, especially considering the driving environment. If the car often drives on smooth urban roads, minor damage to the guard plate might allow for delayed replacement. However, if frequently traveling through muddy or gravel roads, holes in the guard plate will expose the chassis, allowing mud and stones to directly hit the engine or chassis components, accelerating wear and oil leaks. Materials like plastic for the guard plate are prone to aging, while metal ones are more durable. Small issues can be patched up, but major damage should prompt timely replacement, as the cost is not high. Regularly inspect the chassis during car washes to prevent potential risks and ensure smooth and safe driving.

[Lily]

I think a damaged chassis skid plate must be evaluated: small cracks may be fine, but large holes or instability mean it should be replaced. The skid plate plays a big role in blocking debris from entering the chassis and prolonging component lifespan. Replacement costs a few hundred yuan, offering good value. Ignoring it may damage more parts, doubling repair costs. Avoid potholes in daily driving to protect the skid plate, and inspect it regularly to ensure it's intact.