When buying a car, is the correlation in the test important?

If you don't know the condition of the car, you can choose the car after inspection and provide you with professional testing services. You can buy it while I'm here.

The answer is obvious and important! Important! Very important! Just like buying a car, car inspection is as important and essential!

Be a Sherlock Holmes through association and comprehensive judgment! Let's talk about why it is important first! In the process of detection, Lenovo helps us to detect and dig deep into the problems of vehicles. Usually, during the inspection, we will divide the car into the following parts for inspection:

Body panel, as shown in the figure below

Body structure, as shown in the figure below

The body reinforcement is shown below.

As well as the internal appliances, performance, chassis and other parts of the vehicle.

This paper will briefly introduce the body panels, reinforcements and structural parts, and the rest will be explained to you next time. The above three pictures overlap together, which is basically the overall structure of the car body. For a car, once the body structure is deformed, sheeted, cut or replaced, including the cutting of the body reinforcement, it will become an accident car, and the safety performance of the vehicle will decline, thus affecting its residual value, and the price of used cars will be greatly reduced.

Since there is such a great harm, how can we find out whether the car has harmed the body structure and body reinforcement? In fact, it is to judge and discover through association. Because the body structure and the body reinforcement are wrapped by the body panel, if the external panel is intact and only painted, the probability of damage to the body structure and the body reinforcement will be very low, and of course, some wonderful phenomena will not be ruled out.

For a simple example, in the process of inspection, it is found that the right front edge of the hood is sheet metal. We need to take the right front corner of the hood as the midpoint to correlate whether there are repair marks around it, and focus on detecting related parts, such as the associated right front headlights, right front fenders, fixing screws, right front water tank racks, bumpers and fog lights, including the right side of bumper impact beam, and even the inner edges of right front fenders and right front longitudinal beams.

Some people will say that if the longitudinal beam is really injured, the hood must have been scrapped long ago, and it can't be just a sheet metal. However, in the actual scene, the organic cover was not injured, and the longitudinal beam was damaged, because the vehicle directly hit the green belt, causing serious bottoming, the middle and lower parts of the front of the car were seriously damaged, and the hood was not damaged.

Therefore, this proves the importance of Lenovo, and at the same time, don't be lucky because of a small piece of metal, so as not to miss a major accident car.

In addition, through the discovery of doubts, Lenovo assumes that it is also a desirable method to restore the scene of the accident, such as the car mentioned below.

Preliminary inspection: the engine room is dirty, there is sediment, the front of the car is in good condition, and there is a little sediment inside the headlights;

Further inspection: the right front door is fine, and the right front seat is fine, but the co-pilot is close to the firewall, and there is obvious dirty sediment, but there is no sediment under the seat, which makes people suspect of soaking in water;

Further inspection: Open the right back door, the door is fine, the back seat is clean and free of sediment, but there is a crease of about 5cm at the corner between the cross beam on the right back door frame and the C-pillar.

The climax came, and everything went well in the rear inspection. During the inspection on the left side, it was found that there were the same folds at the corner of the left rear door frame and the C-pillar, and the rest were intact in the subsequent inspection.

Then the question is, why is there sediment in many places in front of the car and wrinkles in the beam above the back door? Based on the bold assumption that there are problems, we directly assume that the front of the car is soaked in water alone, and two wrinkles appear in the symmetrical position, assuming that it is caused by people pulling with ropes? Then there is the following scene.

The front of the car fell into the river and was lifted out by a crane at the C-pillar. This is our hypothetical scene, which was confirmed by the communication with the owner afterwards ... Ollie, Holmes appeared again!

Therefore, the association in the detection process is very important, so we must remember that there are many doubts and comprehensive considerations. Have you encountered other wonderful things or a better guess about vehicle collision? Welcome to share.

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This article comes from car home, the author of the car manufacturer, and does not represent car home's position.