The car has been driven for 5 years and the chassis screws have never been checked, what "wrong" could the car be?

For non-original parts, the chassis suspension has been disassembled during the use of the vehicle, the tightening torque of the screws during vehicle maintenance is insufficient, and the screws may become loose due to lack of daily maintenance. The vehicle has not had a major collision accident, and the chassis screws have not been tightened for five years, which will not affect the vehicle and cause no danger. You can drive on the road with confidence.

Aside from the tires, the closest thing to ground contact is the chassis. It faces road impurities, rocks and sand thrown by tires, as well as oxidation, corrosion and bottom bumps every day. testing, so automakers have taken it into account at this point. The engine oil pan will be equipped with guards, and the axle shafts and damping system will be equipped with dust covers.

The swing arm will be equipped with anti-corrosion paint. For better cars, the chassis armor will be painted in its entirety. Once repairing the car, the owner reported that there was always a "click" sound in the front right of the vehicle when driving, and it was suspected that the screws were loose. After our master's test drive inspection, it was found that the pressure of the top rubber of the shock absorber was deformed.

Even so, the cap screws of the top glue are still in place. So, whether it's three years or five years, as long as the structure hasn't been moved, you can rest assured that the screws won't come loose. In the process of daily car use, it is necessary to check frequently. If there is abnormal noise during driving, it should be repaired in time. If neglected for a long time, it will damage the life of the part.

In addition to anti-rust and sound-proofing, the car chassis armor adhesive has strong viscosity during the spraying process, and can stick the exposed screws and contact surfaces together for protection. Car lovers can also use this method. Each of these checks can help you avoid unnecessary trouble in future vehicle driving.

Therefore, if the often mentioned vehicle is well maintained, it will let you drive while driving, and the probability of failure will be greatly reduced, so the maintenance of the vehicle is not only about changing the oil. What are the screws on the case? Mainly the screws of the suspension system, which are tightened with a fixed torque by means of special tightening tools, with various verifications in production.

Don't worry about loosening. Generally, the abnormal noise is heard because the shock absorber is broken, or the shock absorber is topped with glue. This situation does not affect the safety. The car is a very mature industrial product, very mature in design and manufacture. As long as the qualified products are used normally, there is no need to worry about this problem.

Even if the probability of use is very low, such as loosening of screws, abnormal noises or abnormal use will generally occur. If there is any abnormality, it can be repaired in time. The so-called self-locking bolt or nut is a kind of bolt or nut that realizes self-locking through its own thread friction. During use, ordinary bolts or nuts will loosen by themselves due to vibration and other reasons.

To prevent this phenomenon, use self-locking bolts or nuts. The main function of self-locking bolts or nuts is to prevent loosening and vibration, and are generally used for moving parts or special occasions. The car is a moving body, and the road conditions are complex, so most of the bolts or nuts on the car are self-locking.

Because the vibration of the chassis is relatively large, the screws on the chassis are specially treated by the manufacturer, and special reinforcements have been made in terms of steel fire resistance, hardness, and shock resistance. The average car won't fall, unless your car is bad, don't worry too much. The frequency of screw inspection is to go to the 4s shop for maintenance every one or two years.

As we all know, the nut is screwed on the threaded screw. The car keeps shaking while driving, and the nut will gradually loosen. Loose nuts in some key parts may bring safety hazards to driving. There are several parts of the screws on the car that are related to the safety of passengers and must be checked regularly.

Due to the difference in the quality of the car itself and the road, it is inaccurate to measure whether the screws of the chassis of the vehicle are loose in five years. It is generally recommended to go to 4S to check whether the chassis components are in good condition when maintaining the car. To sum up, the car chassis should check the screws regularly. If the screws are loose, they must be repaired in time.

Of course, as long as the car owner takes good care of the car and does not go to places with rough terrain, the chassis screws will rarely loosen, so there is generally no need to worry about this.