Precautions for chassis maintenance of electric vehicles

First of all, let's talk about the reasons why the car chassis will be damaged!
1. Bottom dragging and foreign objects hitting the chassis
To be honest, the speed of domestic road construction really surprises me. The road that was just repaired today will be "opened up" again tomorrow. When the road is repaired, in most cases, there will be more big rocks or potholes. At this time, when our car drives on such a road, if we are not careful, big rocks or other road protrusions will come into close contact with the chassis of our vehicle, which is what we often call bottoming.
Due to the uncertainty of bottoming out, it is easy to cause damage to parts located in the chassis, such as: broken three-way catalytic converter casing, cracks in the engine oil pan, cracks in the gearbox casing, or deformation of the suspension system, etc. The occurrence of these problems will cause fatal damage to your car.
2. Corrosion
The current environment is really getting worse and worse. Even the rain is acid rain. In such an environment, our cars may be more likely to be damaged. Since the chassis is often in contact with sewage, greasy and other substances, and the chemical components in these substances will slowly corrode the chassis and the parts on the chassis, we must pay more attention to the anti-corrosion of the chassis.
In addition to the danger of rainwater and sludge corroding the chassis just mentioned, the snow melting agent used to melt snow in winter and seawater can corrode our chassis, especially seawater. If you go to the beach by yourself, be sure not to drive the car into the sea ( Although this is very cool), seawater will be very corrosive to the chassis. If the chassis comes into contact with seawater carelessly, please flush the chassis with plenty of fresh water or neutral detergent as soon as possible.
3. How to avoid
Generally, in order to prevent the two situations that can easily cause damage to the chassis, the 4S store will recommend that the car owner install an engine guard on the car or perform chassis protection commonly known as "chassis armor" on the chassis. I strongly recommend installing an engine guard, because some economical cars do not install protective devices under the engine and gearbox to save costs, which allows the engine and gearbox to be in direct contact with the road. After installing the engine guard, you can artificially protect the engine and gearbox as well as the important parts located in the front chassis. In this way, even if a bottoming situation does occur, it will come into contact before the guard and will not damage the important parts. Component.
"Chassis armor" (or "chassis sealing") is a chassis protection technology in recent years. It sprays a layer of elastic sealing material 2 to 4 mm thick under the car chassis. The chassis armor can effectively protect the chassis from the impact of road sand and gravel, prevent slight bottoming friction, and prevent corrosion of the chassis by acids, alkalis, and salts. ; Prevent the chassis screws from loosening; reduce the transmission of noise during driving and increase the sense of driving tranquility; prevent the heat conduction of the chassis iron plate, making the cab warm in winter and cool in summer.