After the automobile chassis is rubbed, it should be checked in time. If it touches the position of the oil pan oil pump filter, it needs to be removed, trimmed or replaced. In case the oil pan of the engine or gearbox leaks oil by friction, the owner may continue to drive the engine or gearbox, and the engine or gearbox may be seriously damaged. The following supplement introduces the situation that the automobile chassis is easy to scratch and its solution: 1. The chassis scraped when it was on the side of the road. Coping methods: Try not to drive on the road, develop good car habits, save money and worry. 2. The automobile chassis was scratched when passing through the speed bump. Countermeasures: Deceleration can reduce the impact of speed bumps on tires and the vibration amplitude of vehicle damping, and it is not easy to knock on the chassis. 3. Bump and scrape the chassis in the middle of the rut on the muddy road. Coping method: The safest way to meet this road condition is to use one-sided wheels to walk along the middle bulge to avoid scratching the chassis.