News

A BMW 535GT car with a mileage of about 80 thousand km carrying a N55 engine in 2010. Users reflect: the car accelerates the irregularity. Inspection and analysis: the maintenance personnel tried the car. It was found that the vehicle was pulled back by an invisible force at a speed of 80 km/h and an engine speed of 1700 r/min. When the speed reaches 110 km/h and the engine speed is 1800 r/min, the drag force will disappear, but the body will shake violently. When the speed reaches 135 km/h and the engine speed is 2200 r/min, the vehicle turns to normal driving.