The engine is the power source of the car. It consists of two 5261 mechanisms and five systems.

The five major systems include:

1. Cooling system: If the main 1653 cools and radiates the engine, it will cool the engine.

2. Fuel system: Mainly responsible for providing fuel to the engine.

3. Ignition system: mainly to ignite the mixture is the combustion of the mixture. The diesel engine does not.

4. Starting system: mainly to make the stationary engine rotate the car.

5. Lubrication system: Mainly lubricate the mechanical components of the engine.