My car is almost 45000 km, 45000 km 4S shop said the need to replace the engine belt, but I now feel no problem driving speed, ask whether you need to replace, if not changed, will cause damage to the vehicle? If so, what harm will it do?
But the repair shop does not have to check to see if it is loose or out of use
Generally, 4S, etc. when you reach a certain number of kilometers, you will have to replace it to make sure the treasure is safe and unnecessary trouble
If you don't want to change, it's over mileage. Use your hand to push the belt more than 10mm