How many kilometers should CVT steel belts be replaced?

[DeEmilia]

CVT transmission steel belts should be replaced approximately every 100,000 kilometers of transmission use. If during driving, severe transmission jerking or loud noises are noticed, it indicates that the transmission steel belt has aged and requires immediate attention at a 4S service center. Most modern CVT structures in vehicles utilize steel belt transmission. This method allows for changing the transmission ratio by adjusting the pulley size, enabling it to handle greater torque. The working principle of a CVT transmission involves altering the cone pulley size to affect the vehicle's transmission ratio, with power then transmitted via steel belts or chains. CVT chains are less durable than steel belts in practical use. Although CVT chains exert less impact on the cone pulleys, their strength is inferior to steel belts, making chain-based CVTs unsuitable for high torque applications. While steel belts may generate more noise, they can handle greater torque and offer better durability.