There is no hidden danger after the B-pillar is repaired, but this impact angle may cause deformation of the frame. It is recommended to carry out four-wheel alignment (note that it is not a trip in vain, and it is necessary to accurately match the vehicle data) to check whether the chassis is deformed. Because the components that affect the side impact performance of the automobile are mainly side doors, door bumpers, B-pillars and other side wall components, it is necessary to improve the impact characteristics of these components to improve the impact performance of the automobile. There are three ways to repair the deformation of column B: 1. Repair: Pull back the deformed B-pillar sheet metal and weld it for repair. However, the strength and stiffness of B-pillar treated by this method will become quite poor, and the safety factor will also become worse. 2. Replacement: It varies from car to car. Some B-pillars are detachable and can be removed and replaced separately. If the quality of the replaced fittings is qualified, then the safety factor of the replaced B-pillar is not much different from before. 3. overall replacement: the b-pillar and body of some cars are integrated. If it is replaced, the whole body frame needs to be replaced, which will cost a lot of money. This way is safer and more secure, but the cost is higher. According to the damage of B-pillar, choose to replace or repair B-pillar.