Is the CVT Transmission Prone to Failure?
2 Answers
CVT, in terms of structure, is relatively simpler compared to the other two types of engines. Since it lacks mechanical gears, driving a CVT-equipped car is very comfortable. With only a few hundred components, the CVT boasts high reliability and is not prone to failure. However, the most critical component of a CVT transmission is the drive chain. Nowadays, steel belts are used to replace the drive chain, capable of withstanding extremely high tension. Disadvantages of CVT transmission: CVT lacks driving pleasure. Moreover, the current maximum torque that a CVT transmission can handle is only 400N·M, which limits the development of CVT. In terms of climbing, the performance of CVT may not be outstanding.
To be honest, there are two most common CVT problems I've encountered over the years in auto repair: First, steel belt wear after over 100,000 kilometers - especially common in ride-hailing drivers' cars that run all day, where belt elongation and slipping occur frequently. Second, control computer failures causing cold-start jerking, particularly in winter when the car shakes like it's dancing at startup. However, newer CVTs have improved materials and oil circuit design, and regular changes of dedicated transmission fluid are crucial - I've seen well-maintained vehicles running 200,000 km without issues. Aggressive throttle starts or prolonged steep hill climbing do damage the transmission, while gentle city driving actually makes it less prone to failure.
