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How Many Kilometers Should the CVT Transmission Steel Belt Be Replaced?

1 Answers

LaLane

07/29/25 9:58pm

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

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