Normally speaking, the replacement time of automobile wiper is not certain, which may be related to the environment, frequency of use, accidents and other events, but the normal rubber wiper needs to be replaced once a year. If the wiper's ability to sweep water is obviously reduced, it is the time to replace it. If it is not replaced in time, because of the decline of the water sweeping ability, the rain still remains on the windshield in rainy days, which may cause light reflection, affect the eyes to judge the situation ahead, and cause accidents, so the role of the wiper should not be underestimated.
At the same time, it is necessary to pay attention to the protection of the wiper at ordinary times, and remember to wipe the glass before driving in rainy days, otherwise the residual sand and other particles will scratch the windshield and damage the wiper when the wiper works. In short, the indicator of replacement is to see whether the wiper is clean and whether there are residual water marks.
