The method of routine inspection of the wiper
The way to check the wiper is simple, spray some cleaning liquid, start the wiper, pay attention to whether it moves smoothly, listen to whether there is a big sound, if some, it means that the wiper is too much pressure to glass, it must be properly adjusted. When the rain scavenges from one to two, see if there is water left on the windshield, and then see if there will be any scratches. If you see the scratches clearly, it means that the scraping strips on the wiper are aging.
In general, the rubber bar should be replaced once a year to eliminate the wiper fault and replace the old wiper blade.
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