What are the reasons for the wiper not cleaning properly when wiping?
2 Answers
The reasons for the wiper not cleaning properly when wiping: 1. The rubber strip of the wiper blade is aged or hardened; 2. The windshield is too dirty. Situations requiring wiper blade replacement: 1. If there are cracks, fissures, aging, rust, deformation, attachments, discoloration, etc., it is recommended to replace the wiper blade promptly; 2. If the rubber strip has detached from the frame, causing slapping against the windshield with each wipe, producing abnormal sounds like jumping or shaking, it is advised to replace the wiper blade; 3. If each wipe leaves scratches on either side or the middle of the glass, it is recommended to replace the wiper blade. There are two types of wiper blades: one is the beam blade (without frame), and the other is the conventional blade (with frame). Currently, the beam blade is more commonly used because, without a frame, it fits better against the windshield, resulting in cleaner wiping.
I've been driving for decades, and the most common issue with wipers not cleaning properly is the aging of the rubber blades. Exposure to intense sunlight or extreme cold can make them hard and brittle, leaving water streaks or marks when wiping. Oil film or dust on the windshield can also cause poor wiping, just like last time when I couldn't see clearly in the rain—using glass cleaner improved it significantly. Additionally, the wiper arm might be loose or have uneven pressure, causing skipping and uneven wiping. I recommend regularly checking the condition of the wiper blades. If you notice cracks or reduced elasticity, replace them immediately, as it can affect driving safety, especially during heavy rain. When parking, lift the wipers to prevent them from sticking to the glass—simple maintenance can extend their lifespan.
