Let's look at the door hinge first. Although the door hinge has a certain bearing capacity, it is generally not easy to deform and damage. However, in daily use, some car owners will still cause the deformation of the door hinge for various reasons, which will affect the sealing performance of the door. When we feel that the door has obvious air leakage, we can first check the fit of the door after closing and judge whether the hinge is deformed. Although the door is closed, the edge of the door obviously doesn't fit well. It can be judged that the door hinge is not tight because of deformation. At this time, if you are a car owner with strong hands-on ability, you can find a wrench to adjust the hinge position yourself. But generally speaking, it is recommended to go to the repair shop and let the mechanic operate it. After all, they often come into contact with these things and get up soon.

Let's look at the problem of sealing strip. Door sealing strip is mainly used for fixing, dustproof and sealing the door, generally rubber products. In daily use, due to many reasons or improper maintenance, rubber will age ahead of time. Aging rubber will crack and harden, which will affect the tightness of the door. At this time, we only need to carefully check the door sealing strip, find out the aging damaged sealing strip and replace it. It is best to replace the sealing strip in 4S, because the door shape of each model is different. The sealing strip for 4S car is better matched with the original car door, and the fit will be better and the sealing performance will be better after replacement. Even if you don't go to 4S stores, you should choose some products from large sealing strip manufacturers. After all, we want to improve the sealing performance by replacing the sealing strip. If the mold opening precision of the replaced sealing strip is not enough, and the joint with the door is not enough, the sealing performance of the door will be affected. At this time, we only need to carefully check the door sealing strip, find out the aging damaged sealing strip and replace it.

It is best to replace the sealing strip in 4S, because the door shape of each model is different. The sealing strip for 4S car is better matched with the original car door, and the fit will be better and the sealing performance will be better after replacement. Even if you don't go to 4S stores, you should choose some products from large sealing strip manufacturers. After all, we want to improve the sealing performance by replacing the sealing strip. If the mold opening precision of the replaced sealing strip is not enough, and the joint with the door is not enough, the sealing performance of the door will be affected. Therefore, if the door leaks, don't worry, check carefully, find out the cause of the leakage, and then deal with it accordingly, which can generally prevent the leakage.