What are the maintenance methods for a sedan chassis?

[Ana]

The maintenance methods for a sedan chassis are: 1. Regularly inspect the working condition of each part of the chassis; 2. Clean the chassis periodically to prevent rust; 3. Install armor for the chassis; 4. Regularly check the shock absorbers. Common causes of sedan chassis scratches: 1. Driving on uneven roads with many grooves or potholes; 2. Being scratched by foreign objects when crossing roads; 3. Driving over uncovered sewers; 4. Driving on roads with steep slopes. The function of a sedan chassis is to support and install the car engine and its various components and assemblies, forming the overall shape of the car, receiving the power from the engine to make the car move, ensuring normal driving. It consists of four parts: the transmission system, the running system, the steering system, and the braking system.