What Causes the Noise Between Wiper and Windshield?
2 Answers
There are three main reasons for the noise when the wiper scrapes the windshield: 1. Wiper blade aging or foreign objects on the windshield: This is the most common cause of noise when the wiper scrapes the windshield. Wiper blades are made of rubber, and prolonged exposure to outdoor conditions such as wind, rain, and sunlight can easily cause them to age. Aged wiper blades will not clean the windshield properly and may leave streaks of water marks. In this case, replacing the wiper blades is the solution. 2. The wiper blade is too soft or improperly adjusted, causing it to hit the A-pillar: Many car owners choose to purchase and replace wiper blades themselves. Many aftermarket wiper blades available online may fit in size but differ in material hardness compared to original equipment manufacturer (OEM) parts. This can cause the wiper blade to hit the A-pillar during operation, especially with beam-style wipers. 3. Noise from the wiper motor and linkage mechanism: Many mechanics emphasize that you must spray water before using the wipers. Besides helping to clean dust more effectively, this also reduces the friction resistance of the wiper blade on the windshield. Prolonged dry wiping can place a heavy load on the wiper motor and linkage mechanism, leading to motor damage or loosening of the linkage mechanism, resulting in noise.
I just came back from a long drive, and the noise from the wipers gave me a headache. It might be due to aging wiper blades—the rubber strips harden over time and squeak against the glass. Another reason could be dirt buildup on the windshield, like oil film or dust, causing friction noise. Dry weather with less moisture makes the wipers more prone to squeaking when dry-wiping. Loose installation can also lead to rattling sounds. Experience tells me that safe driving comes first—the noise isn’t just annoying but also affects visibility, especially during heavy rain, increasing the risk of accidents. I’ve developed a habit of spraying some wiper fluid and wiping the windshield with a towel before driving. If I notice anything unusual, I check or replace the blades immediately. I recommend changing the blades every six months—it’s cost-effective and hassle-free.
