Why does the car wiper become blurry for a few seconds and then clear again?

[Ramirez]

It may be due to poor contact angle between the wiper and the windshield, requiring wiper replacement; or the windshield washer fluid may be impure, necessitating a change of fluid; or the windshield may need thorough cleaning as there could be oil residue on the surface. Here are some wiper maintenance guidelines: 1. When using the wiper to remove dust from the windshield on sunny days, always spray windshield washer fluid and avoid dry wiping. 2. If there are other stubborn or hard contaminants on the glass, clean them manually. These substances can easily damage the wiper blade, leading to ineffective wiping. In severe cases, the wiper motor may also be affected. 3. When lifting the wiper blade during car washing or daily cleaning, hold the "backbone" of the wiper blade and gently return it to its place. Do not snap the blade back abruptly. 4. In winter, use an ice scraper to remove ice chips from the windshield surface first to avoid putting extra strain on the wiper.