1. Bring the bill before you pick up the car. Such as invoices, factory certificates, insurance policies, warranty certificates and instructions.
2. When picking up the car, check the real thing according to the ticket. For example, check whether the color, exhaust volume, factory year, frame number and engine number of the car are in line with the actual situation.
3. Walk around the car and carefully check whether the paint color is consistent with the color of the whole car. Whether there are scratches, paint drops, cracks, bubbles or rust on the body surface. Touch it with your hand to see if there are any signs of repair. Don't cover the traces with dirt or dust, so that you can check whether it is a used car.
4. Check whether the tire size, spare tire and other four tire sizes are the same.
5. Check whether the headlights (large and small lights) cover is damaged, whether the doors and windows are complete, whether the rear view is in good condition, and whether the front and rear windshields are damaged.
6. Press the front, back, left and right corners of the car by hand. After you let go, the beating of the pressing part will not exceed 2 times, indicating that the shock absorber has good performance.
7. Check whether there is leakage (coolant, lubricant, brake fluid, electrolyte and refrigerant) in the car.
8. Open the door and check whether the seats in the car are complete and whether the front and rear seats can be adjusted. Whether the chair cover is neat, whether the sofa is leather sofa, whether the floor is clean and well sealed. Whether the door handle is flexible, safe and reliable, and whether the sealing strips of doors and windows are damaged. Whether the manual (or electric or hydraulic) window glass operating mechanism works normally. Check whether the scene image in the rearview mirror is clear.
9. Sit in the cab, turn on the power, and check whether the wiper and water spray cleaner work normally. Turn on the initial lighting system and check whether the headlights (large and small lights), brake lights and anti-fog lights are normal. Working normally. After pressing the horn button switch, check whether the horn sounds. Check whether there are recorded figures in the odometer. The value of a new car (Shekou to JS) is generally within 60 kilometers.
10, start the engine, first observe whether all kinds of instruments and alarm devices work normally, and listen to whether the engine works normally and whether there is abnormal noise when the water temperature and oil pressure are normal; Whether the idle speed is stable when the accelerator is lost (release the accelerator pedal). Observe whether the exhaust pipe is normal. (It is best to exhaust continuously, and the palms are tasteless and colorless. )
1 1. Carry out a road test to check the acceleration, idle speed, load, braking performance, handling stability, ride comfort and passability of the car.
12. Check whether the transport protective sleeve (yellow) of the front wheel shock absorber has been removed.
Step 1: External inspection when the vehicle is stationary.
1. Look at the paint surface and carefully look at the hood and roof plane at a 45-degree angle, because the painting effect of the upper plane of the car can best reflect the level of painting technology, and it is also the part that is most likely to expose defects, no matter when the paint layer is not handled well. It is easy to produce wrinkles and blisters. When the painting work environment is poor, it is easy to leave spots on the paint layer, which will naturally greatly affect the appearance-no one wants to buy a car with acne, right? In short, the car surface color should be coordinated, uniform, full, flat and smooth, and there should be no pinholes, pits, wrinkles, blisters, flow marks and scratches, and the boundaries of different colors should be clear.
2. Check whether the gap between the door, cover plate and trunk door is even, and whether the rubber strip at the door joint is well sealed. When closing the door, the door can stop automatically and reliably with a little force. It should be flexible when opening, and the door shaft should not be loose and noisy. The opening and closing of the window should be light, flexible and tightly closed. The window glass should be transparent without ripple, and the front windshield should not be dazzling.
3. Wear strips and decorative lines of the car body should be straight, with smooth transition and consistent seams.
4. The rearview mirror should have clear imaging and flexible adjustment.
5. When the tire pressure meets the requirements, the left and right symmetrical parts of the car body, the bumper and the front panel of the car should have the same height from the ground.
6. Check whether the models and patterns of tires (including spare tires) are consistent, and whether there are cracks and blisters.
7. Push and pull the upper side of the tire from the side, and don't feel loose.
8. Check the headlights. The types, specifications, color filling and lighting height of symmetrically installed lamps should be consistent. Replace the far and near lights, the brightness and lighting position should be correct, and there should be no deviation and astigmatism. The installation and brightness of various lamps shall meet the requirements of the manufacturer's factory instructions.
Step 2: Check the engine.
1. Open the engine hood and check whether the engine and its accessories are contaminated with oil or dust, especially whether there is leakage at the joint between the cylinder head and the cylinder block, and at the joint between the oil filter, the air compressor, the steering booster pump and the transmission shaft. Pull out the dipstick to see if the oil on the dipstick is clean and transparent, and the oil amount should be between two scales.
2. Check whether the coolant and brake fluid levels are between the maximum (max) and minimum (min) scales.
3, cold start the engine, should start smoothly, no more than 5 seconds at a time, ignition once or twice. After starting, the engine speed should be stable without shaking or abnormal noise.
4. When the engine speed changes too much, it should be stable and the corresponding pointer on the dashboard should be sensitive. When accelerating. The engine should not suddenly explode, catch fire, backfire and catch fire. When the engine is stable at a certain speed, there should be no abnormal sound, and the pointer corresponding to the instrument panel should be stable without obvious fluctuation.
5. After the engine runs at low, medium and high speed for a period of time, keep the engine idling for a certain period of time (generally 800-900 rpm) to see if the engine is stable, with or without jitter and noise. 6. At the same time, observe the exhaust gas discharged from the exhaust pipe outlet at the rear of the vehicle, which should be smokeless (except steam when the ambient temperature is low) and tasteless (put your hand near the exhaust port for a while, and then observe whether there is oil stain on your hand. Smell it).
7. After the engine stops for a period of time, start the test vehicle. At normal operating temperature (60-80 degrees Celsius), the engine should be started successfully within 5 seconds.
Step 3: driving inspection
1. Before driving, press the brake pedal to the maximum force for one minute, and the pedal cannot move down slowly. At the same time, you can use this time to see if the front view is open and feel whether the seat is comfortable. Note that if the seat is too soft, it is easy to feel tired after driving for a long time.
2. When stepping on the clutch. Taiwan Province Province should be smoothly connected and completely separated. No slipping, no shaking.
3. The gear shifting of the transmission should be light and flexible, and the gear position should be accurate, without gear shifting, random gear shifting and abnormal sound.
4. When driving at low, medium and high speed, it should be smooth and there is no noise in the car.
The acceleration of the car should be fast and powerful. The shorter the acceleration time from the initial speed of 20km/h to 40km/h, the better the power of the car.
6. When the road bumps or runs over stones, the tire should have the performance of automatically returning after jumping.
7. When going straight at a speed of 20km/h-30km/h, keep your hands away from the steering wheel for a while to see if the car has deviated or skidded.
8. When driving, the steering mechanism should be flexible to operate and run in an "O" shape according to the different turning radii (the smaller the radius, the better the maneuverability of the car). When the wheel turns to the limit position, it should not interfere with other parts. Drive in an "S" shape and see the flexibility of turning.
9. When the vehicle speed is 30km/h, the gear should be removed and the sliding distance should be greater than 160m. Please refer to the roadside telephone poles. The distance between two poles is generally about 50 meters.
10. The brake shall be sensitive, rapid and powerful, and no deviation or side slip is allowed. Braking distance conforms to factory regulations. 1 1. According to the instructions, try the heating or air conditioning facilities in the car according to the season to see if it meets the manufacturer's regulations.
12. Check whether the lights and various signal signs are complete, effective, accurate and reliable.
13. Finally, verify the driving fuel consumption to see whether the economic indicators meet the requirements.
Step 4: Check after parking.
1. Open the engine hood and check again for oil leakage, water leakage, electricity leakage and air leakage.
2. Observe whether the front and rear shock absorbers, brake pump, transmission and transmission shaft leak oil. At the bottom of the car.
3. On the ground with a certain slope, check whether the parking device is effective and reliable.
4. Touch the brake disc and drum carefully and quickly to see if it is very hot.
5. Test whether the central control pin or door pin, anti-theft device and other facilities are effective and reliable.
Through the above steps. Generally speaking, the performance of a car can be examined from the aspects of power, economy and reliability. We can comprehensively consider these and other aspects, such as the convenience of use, maintenance and supply of auto parts, and try to choose manufacturers with perfect after-sales service guarantee system. From the perspective of safety, we should also try to choose cars with airbags and ABS anti-lock braking devices.
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