What Causes Windshield Wipers to Not Clean Properly?
2 Answers
Windshield wipers not cleaning properly is mainly due to invisible dirt on the glass. Here are some key points about windshield wipers: 1. Function of windshield wipers: Windshield wipers are important accessories installed on the windshield, designed to remove rain, snow, and dust that obstruct the driver's view. Therefore, they play a crucial role in driving safety. 2. Types of windshield wipers: Windshield wipers generally include vacuum wipers, electric wipers, and wipers with electronic control units. The drawback of vacuum wipers is the unstable movement speed of the wiper blades. When the engine's vacuum pressure decreases (such as when the car is climbing a slope), the wiper blades may stop, causing the driver's vision to become blurry. Vacuum wipers were phased out in 1972 and replaced by electric wipers.
It's quite common for wipers to not clean properly, and the most frequent reason is aging wiper blades. Having driven for many years, I've seen many people face this issue—wiper blades wear out or crack over time, leaving streaks or water marks when wiping the windshield. Additionally, oil stains or dirt on the windshield can affect performance, such as parking under trees or failing to clean oily residues after rain. Weather also plays a key role—wipers harden in winter frost and are prone to deformation in summer heat. I recommend regularly cleaning the windshield with a damp cloth and replacing wiper blades every six months or so to ensure clear visibility during rainy drives. Don't wait until they fail completely—this is crucial for safe driving.
