The price of BMW 5 Series front bumper is around 2000 yuan; The price of the rear bumper is about 2600 yuan; 4S The prices of different stores are different, for reference only. Suggest asking in the store. The front bumper of BMW 5 Series will distribute the force to the energy-absorbing boxes on both sides, then to the left and right front side members, and then to other body structures. Low-strength impact bumpers can cope, while high-strength impact bumpers can disperse and buffer the power transmission, which is finally transmitted to other structures of the car body, and then resisted by the structural strength of the car body. The main duty of BMW 5 Series bumper is to protect pedestrians. Because pedestrians are vulnerable groups, plastic bumpers can reduce the impact on pedestrians' legs, especially their calves, and cooperate with the reasonable design of the front bumper to reduce the injury degree of pedestrians when they are hit. Secondly, it is used to reduce the loss of parts during high-speed collision. If the bumper is not designed properly, these parts may be seriously damaged in the event of a collision.