Will the correction of left and right longitudinal beams have any impact?
2 Answers
Correction of the left and right longitudinal beams will have an impact. In collision accidents, the front and rear longitudinal beams bear the main energy absorption function. The longitudinal beams absorb collision energy through crushing deformation and bending deformation. Introduction to front longitudinal beams: Many car buyers may not be familiar with front longitudinal beams. The front longitudinal beams are equivalent to the skeleton of the car, composed of two longitudinal beams located on both sides. The longitudinal beams are mostly stamped from low-alloy steel plates, with a cross-section in the shape of a channel or I-beam. The front part of the vehicle's longitudinal beams belongs to the energy absorption zone. Once a collision occurs, they will crumple, and even after repair, it is easy to detect. Therefore, inspecting the front longitudinal beams is an important area for identifying accident vehicles. Function of front longitudinal beams: Although many vehicles are equipped with front and rear anti-collision beams, in the event of a frontal collision, the two front longitudinal beams, most of which are covered by the engine, are the ones that truly play a role. In collision accidents, the front and rear longitudinal beams bear the main energy absorption function. The longitudinal beams absorb collision energy through crushing deformation and bending deformation. Among them, the front longitudinal beams bear about 60% of the total collision energy.
I've encountered many cases of frame rail straightening after accidents during my car repair experience. If you're asking whether it affects the vehicle, the answer is definitely yes—but the key lies in the quality and technique of the straightening. Professional straightening uses laser alignment equipment to pull the frame rails back to factory specifications, essentially restoring the vehicle's structure. The car will drive normally afterward, and safety performance will meet standards. However, if the work is sloppy—for example, overstretching or leaving minor bends uncorrected—it may lead to suspension deformation, steering misalignment, or even compromised body rigidity over time. I recommend choosing a certified repair shop and performing a four-wheel alignment check afterward to ensure chassis stability. After all, this directly impacts driving safety—there's no room for carelessness. Regular maintenance and checking for unusual noises or panel gap changes can help detect issues early.
