The following is the introduction of the inspection time: 1. Annual inspection of passenger cars 1 time. 2. Trucks and large and medium-sized non-operating buses 1 annual inspection 1 time. 3. Small and micro non-operating buses are inspected every 2 years 1 time. 4, motorcycle inspection every 2 years 1 times. 5. Tractors and other motor vehicles are inspected every year 1 time. The contents of automobile inspection are as follows: 1. Engine inspection: technical status of cooling system; Technical status of oil supply system; Technical status of lubrication system; Technical status of ignition system; Technical status of startup system; Engine abnormal sound; Engine sealing performance; Fuel consumption; Engine power. ? 2. Vehicle inspection: vehicle waterproof and sealing test; The first photo is an inspection; Measurement of automobile noise; Speedometer verification; Determination of pollutants emitted by automobiles; Automobile appearance inspection; Measurement of chassis output power. 3. Chassis and body inspection: drive system; Suspension clearance; Wheel balance includes static balance and dynamic balance; Wheel alignment includes front wheel alignment and rear wheel alignment; Technical status of the braking system; Braking distance braking force; Brake deceleration; Technical requirements of steering system: the steering wheel includes free travel and steering force. 4. Technical condition of transmission system: abnormal sound of transmission system; Clutch slipping; Angle of transmission system; Body modeling and positioning.