First of all, check the wiper regularly. The wiper is one of the main sources of damage to the front windshield. On the one hand, after the wiper has been used for a long time, if the end of the rocker arm of the wiper directly rubs against the windshield, it will not only wipe the rainwater cleanly , but will scratch the glass, in addition, the wiper adheres to the dust and rubs the front windshield, which is easy to leave some small scratches and fine lines on the glass. According to experts, under high-speed driving, such small scratches can also cause the front windshield to shatter. Although the probability is very small, the glass suddenly burst on some highways without finding the reason. caused by scratches.