Open the front cover of a car. What are the structures inside?

The engine room layout of Japanese and European and American departments is different, but the structure is basically the same. Generally, when you open the engine compartment cover, you can see: the engine decorative cover (there is a decorative cover on the engine of the current car with the logo of the car factory on it), batteries, some wiring harnesses, such as engine wiring harness, engine EGI wiring harness, main grounding wire, etc., as well as shock absorber mounting seats, and some advanced sports cars may have top-level balance bars. There are also various liquid filling ports or liquid storage tanks, such as windshield cleaning liquid, air conditioning refrigerant, and radiator assemblies, including heat sinks, which are what you usually call water tanks, fans, speakers, hatch cover locking devices, air filters, and some pipelines, such as high and low pressure pipes of air conditioners and engine intake pipes. That's basically all. The engine room of European cars is very clean and modular. Many parts have decorative covers on the outside. After the cabin is opened, it looks neat. Only some liquid filling ports are exposed. Relatively speaking, the layout of the engine room of Japanese cars is a bit messy.