When the vehicle is unfortunately involved in an accident, many people will be faced with two choices: maintenance, plastic surgery and replacement. Some car owners are worried that they are not original accessories after replacement. If you don't replace it, you are more worried about the overall strength of the car body and reduce the safety performance guarantee of the vehicle. Then, if the vehicle parts are deformed after the accident, should they be replaced or repaired? Let's have a look.

Generally speaking, it is much better to replace parts that can be replaced separately than to maintain them, that is, parts that are not integrated with the vehicle can be removed and replaced separately. Such as front and rear fenders, doors, hoods, roofs, front and rear side rails, water tanks, etc. These can be repaired by plastic surgery.

If it is an accessory that cannot be replaced separately, it depends on the degree of deformation, because it is basically connected with the body. For this kind of accessories, either replace them as a whole or repair them by cutting and welding. The repair method is basically to cut off the bad and deformed parts and then weld them with the same parts and accessories, which has an impact on the overall strength of the vehicle.

If the deformation is small and does not need to be replaced, plastic repair can be carried out. But if the deformation is serious, it needs to be replaced, because the overall strength is not as good as that after cutting and welding, and because of the bending of plastic parts, the strength of metal parts is greatly reduced. Generally speaking, if the depth is less than three centimeters, it is considered as slight deformation, and if it exceeds this value, it can be considered as serious deformation. If it is torn or wrinkled, it cannot be formed, otherwise it should be replaced or cut and welded.

Generally, the places that need to be repaired by cutting and welding are ABC column, rear fender, lower sill and longitudinal beam. These places are very vulnerable to injury and deformation. These places can basically be defined as accident cars as long as they are rebuilt or replaced. No matter how big the injured area is, if you sell used cars, the price will be affected to some extent.

However, regardless of the degree of damage, the parts that can be replaced separately are harmless to the vehicle. But if the quality is guaranteed, it is best to replace the original parts. Strictly speaking, as long as the parts that can be replaced separately are damaged, it is not an accident car, because its safety and other performance are not affected. Regardless of the damaged area, only parts that cannot be replaced separately will be damaged.