The first-class maintenance project of automobile is the most basic routine inspection and maintenance of automobile, which is mainly to replace engine oil and refrigerant, check the tightness of tires, water pumps and booster pumps, eliminate potential safety hazards and maintain various performances of automobile.

The primary maintenance of automobiles mainly includes the following items:

1. Replace the oil, oil filter, gasoline filter and air filter. Usually, the automobile oil is changed every 5,000 kilometers, and the gasoline filter is changed every 20,000 kilometers.

2. Check whether the liquid level position of automobile refrigerant meets the requirements. Usually, automobile refrigerants need to be replaced every two years.

3. Check the liquid level position of the brake and clutch. Usually, the brake and clutch fluid need to be changed every 30,000 kilometers or two years.

4. Check whether the oil level of the power steering oil tank meets the requirements, and check whether the oil pipe interfaces of the system leak oil.

5. Check the liquid level of battery and glass cleaning tank. If the liquid level is too low or insufficient, it needs to be added or replaced.

6. Check the belt tightness of the generator, air conditioner, water pump and booster pump for aging, and replace it in time if any abnormality is found.

7. Check whether the front and rear lights of the car are complete (including headlights, width lights, turn signals, brake lights, reversing lights and fog lights), and confirm whether the brightness and illumination angle of the lights are up to standard.

8, check the automobile tire pressure and wear, tighten the tire screws according to the specified torque, add the tire pressure to the specified model value, according to the tire wear transposition.