The rust of the chassis will not have much impact on the car in a short time. Once we find that the undercarriage parts is rusty, we can go to the repair shop or 4S shop to deal with it in time. It is mainly to polish the rusty parts, and then apply a waterproof and rust-proof coating to repair it.
Of course, in daily use of the car, we can also protect the undercarriage parts by doing chassis armor. The chassis armor is made by attaching a layer of asphalt to the chassis to isolate the steel plate of the chassis from the external environment, so as to prevent moisture, acid rain and dirt on the road from corroding it. In addition, it also has good elasticity, which can effectively prevent minor scratches and the impact of sand on the road.
Of course, the undercarriage parts armor does not have to be installed. Many new cars have a certain degree of protection on the chassis when they leave the factory. Therefore, if the car chassis itself does not rust, we do not need to do this kind of protection.