
The impact of scratching the car chassis is a reduction in the vehicle's lifespan and a threat to driving safety. The chassis structure consists of the transmission system, running system, steering system, and braking system. It adopts an independent suspension system, which can be further divided into different structural forms such as transverse arm type, longitudinal arm type, multi-link type, candle type, and MacPherson suspension system. The maintenance methods for the chassis include: 1. Regularly check the condition of the car tires; 2. Periodically clean and wipe the car chassis; 3. Promptly inspect the operation of various components during the car's movement; 4. Regularly maintain and inspect the car's shock absorbers.

A few days ago, while driving in the suburbs, I didn't notice a large rock on the road and ended up scraping the undercarriage. The next day, I discovered oil leaking from the car. After inspection, it turned out the oil pan was punctured, and all the engine oil had leaked out. Fortunately, I drove to the repair shop in time and spent over 800 yuan on replacement parts. The mechanic mentioned that undercarriage damage is most concerning when it affects critical components like the oil pan, fuel tank, or exhaust pipe. Minor damage can lead to oil or fluid leaks, causing engine overheating or insufficient lubrication, and prolonged neglect could result in the car breaking down or even becoming irreparable. Now, I slow down whenever I encounter rough roads—repairs aren't cheap, and it also affects driving safety. I recommend everyone check their undercarriage regularly, especially for older vehicles, and not wait until problems arise to take action.

I've seen many cases where car undercarriages got scraped, and generally, scratches can affect several critical parts. If the oil pan is punctured, it can lead to oil leakage, potentially causing the engine to seize; a dented exhaust pipe can result in poor exhaust flow, reducing the car's power; damage to the fuel tank can cause leaks, posing a fire hazard. If the suspension or brake lines are harmed, it's even more dangerous, leading to brake failure or loss of control. During repairs, the extent of damage is usually assessed—minor scratches can be fixed with anti-rust paint, but severe damage may require spending over a thousand to replace parts. Be cautious when driving over speed bumps or rocky roads; low ground clearance increases the risk of incidents. The most reliable method is to have the undercarriage inspected during regular maintenance. Don't underestimate surface scratches—they can hide major issues beneath.

The primary concern with chassis scratches is the safety risk. For instance, damage to the brake fluid line can lead to complete fluid loss, resulting in brake failure; a punctured fuel tank can cause fuel leakage, significantly increasing the risk of fire or explosion; severed control module wires can lead to loss of steering or lighting control. These issues can instantly cause accidents, especially at high speeds or during nighttime driving. To minimize risks, avoid potholes during daily driving, and immediately stop to inspect the chassis if scraping occurs—never continue driving forcefully. If scratches are found, promptly visit a repair shop for inspection, as rust after rain can worsen the damage. Timely repairs can prevent cascading issues, ensuring peace of mind while driving.


