What are the reasons for the wiper not cleaning properly when wiping?

[DelSamuel]

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.

[JocelynFitz]

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.

[SanBryce]

As a car enthusiast, I believe that ineffective wiper performance usually stems from several aspects. The primary cause is the aging of the wiper blade rubber, which hardens over time due to prolonged sun exposure, resulting in uneven wiping. If there are residues like tree sap, bird droppings, or oil stains on the windshield, they can also leave blurry streaks. I often use wiper cleaning fluid to maintain cleanliness. Insufficient tension in the wiper arm spring or loose connecting parts can lead to inconsistent pressure, affecting performance. I inspect the wiper system once a month by gently wiping the glass to check for any remaining water streaks. Since getting a new car, I've made it a habit to replace the wiper blades annually to ensure clear visibility and reduce nighttime driving risks. Other factors, such as winter ice buildup, require caution—avoid forcing the wipers to operate.

[DeNathan]

As a daily driver, I pay close attention to driving safety. Wiper blades not cleaning properly is mainly due to blade aging or dirty windshield. For example, when wiper rubber hardens, it leaves zebra stripes when wiping. Washing the windshield with soapy water can improve this. It's also often caused by improper wiper arm installation leading to misaligned angles affecting cleaning efficiency. Timely replacement of new blades is crucial, with a check every six months. Wiper motor failure is less common, but uneven wiping motion is frequently observed. It's advisable to test the wipers once before driving in rain. If blurriness is detected, address it immediately to prevent obstructed vision and accidents. Simple maintenance like regularly wiping dust off wiper arms can help maintain performance.

[SanEloise]

From a mechanical perspective, the common reason for wipers not cleaning effectively is the aging and loss of elasticity in the wiper blade rubber. Over time or under extreme temperatures, the rubber hardens and cracks, leading to incomplete water removal. The accumulation of oil film or dust on the windshield can also cause streaks, which I can resolve by wiping with a cleaner. If the wiper arm is bent or the spring weakens, uneven pressure can result in water stains. During my personal inspection, I first manually move the wipers to check for any sticking. Motor issues are less common, but loose connections can cause intermittent operation. For prevention, regularly clear debris from the wiper channel and pay attention to parking conditions to extend lifespan and ensure safe driving.

[GabriellaFitz]

As an average person trying to save money, most wiper blade issues stem from wear. Aged rubber leaves streaks that obscure vision, but I find inexpensive wiper cleaning fluid (just a few yuan) effective for removing windshield grease. Loose or improperly installed wiper arms may need adjustment. I typically replace blades myself for about 30 yuan per set, lasting half a year. Dirty windshields are a common culprit - I regularly clean them with a damp cloth. During inspection, check if streaks appear consistently in the same spots, which may indicate arm issues requiring prompt repair. Seasonal changes also warrant wiper maintenance to ensure clear visibility and driving safety.