Why does the wiper make noise after glass coating?
2 Answers
Car wiper noise causes and solutions are as follows: Wiper aging and hardening: The noise caused by the wiper blade itself. Wipers are rubber products that will age and harden after a period of use, especially noticeable in winter. If they can no longer clean effectively, the simplest and most effective solution is to directly replace the wiper blade with a new one. Wiper noise caused by foreign objects: Noise caused by foreign objects between the wiper blade and the windshield. When the wiper is activated, sharp friction noise may occur between the wiper blade and the windshield. The owner can check for and clean any foreign objects under the wiper or on the wiper blade to ensure the cleaning effectiveness of the wiper blade. Wiper noise caused by friction in the wiper arm bushing: Noise caused by friction in the wiper arm bushing. In older cars, the wiper linkage may age, the wiper arm spring may lose elasticity, and the bushing may wear out or even fall off. Please check the wiper arm or wiper linkage bushing. Wiper noise caused by the wiper motor: Noise caused by the wiper motor itself. If the wiper motor is making abnormal noises, it is likely a sign that the motor is nearing the end of its lifespan. It is recommended to have a more detailed inspection at a professional repair shop.
A while ago, I just had my car's glass coated with ceramic coating, and suddenly the wipers started making a loud screeching noise in the rain, like scraping against a metal sheet. I thought about it for a while and figured it might be because the coating hadn't dried evenly, making the surface rough and increasing friction on the wiper rubber. I tried driving on the highway a few times to let the coating wear in, but the noise didn’t go away. Later, I noticed the wiper blades were a bit old, so I replaced them with new ones and used a specialized glass cleaner to wipe the windshield, removing any leftover coating residue. Hey, problem solved! Remember, after coating, the glass needs time to adjust, and the wipers need timely maintenance—don’t wait until the rubber cracks to act. If you can’t fix it yourself, it’s better to get it checked at a professional shop.
