Why is there always a sound of wipers rubbing against dry glass?
1 Answers
Wipers making noise when rubbing against the glass could be due to hardened or aged wiper blades, foreign objects between the wiper blade and windshield, deformation of the linkage mechanism, or issues with the motor or interval relay. Below are the possible causes and solutions: Issues with the wiper blades themselves: Wiper blades are made of rubber and can harden or age over time, especially in winter. If they no longer clean effectively, the simplest and most effective solution is to replace them. It is generally recommended to replace wiper blades every one to two years. Foreign objects between the wiper blade and windshield: When the wipers are turned on, a sharp sound may occur due to friction between the wiper blade and windshield. The owner should inspect and clean any foreign objects under or on the wiper blades to ensure they remain clean. Deformation of the linkage mechanism or issues with the motor or interval relay: Abnormal movements, such as too fast, too slow, or continuous operation, may cause unusual sounds. Over time, the mechanism itself may deform, jam, rust, or malfunction. If the wiper blades are newly replaced, check if the windshield has dirt or oil stains. It is recommended to clean the windshield with a cleaning solution or try a new set of wiper blades.
