First of all, the timing belt is definitely not that expensive. Even if you go to the 4S shop to replace the original factory, a few hundred dollars is enough. The timing belt replacement mainly depends on the mileage and age, generally more than 100,000 kilometers or 5 years.
However, if there are slight cracks in the appearance, it is better to replace it for the sake of safety. For details, refer to the vehicle manual, which has specific replacement years and mileage regulations. There are many signs that the timing belt needs to be replaced, and most of them are considered to be replaced due to the appearance of cracks.
I think from personal experience, if there is a slight crack, there is no transverse line, no dropped line, and no line collapse, it will be no problem when it is used for another 10,000 kilometers.
