What Causes the Car Wiper to Not Clean Properly?

[Luke]

Car wipers not cleaning properly is due to oil film on the windshield and wiper arm deformation. Detailed explanations are as follows: Oil film on the windshield: When vehicles are exposed to the natural environment, the fine pores on the glass enlarge over time, absorbing exhaust fumes and oil mist from the air to form an oil film. Simply relying on wipers and windshield washer fluid is insufficient to remove the oil film; an oil film remover must be used. Wiper arm deformation: The motor drives the reduction mechanism to rotate, which in turn moves the wiper arm and blade left and right to clean the windshield. If the wiper arm is deformed, the blade cannot adhere tightly to the windshield, failing to remove dirt. In such cases, replacing the wiper is necessary.

[McAlivia]

It's really annoying when the wipers don't clean properly. I think the most common issue is aging or damaged wiper blades. Over time, I've noticed the rubber hardens or cracks, leaving streaks or missed spots on the glass. The glass surface also needs proper cleaning—I've tried applying glass cleaner to remove oil film, and drying it promptly after washing helps prevent dirt buildup. Another problem is uneven pressure from the wiper arm; I've adjusted it to ensure even contact with the glass. In winter, if the glass is icy or the wiper arm is bent, I replace the blades—they're affordable and easy to install. Regular DIY maintenance makes a big difference, ensuring safer driving in the rain.

[ChloeLynn]

The main issues causing wipers to clean poorly lie in the wiper blade condition or windshield. From my experience, when wiper blades wear out, their scraping force decreases, leaving water streaks that affect visibility. Deformed wiper arms result in insufficient pressure – I've tested this by manually pressing to check their elasticity. Windshield oil film is an invisible culprit; applying some degreasing cleaner solves it. Also, the installation angle must be correct; if misaligned, wiping becomes uneven. If the wiper motor is functioning properly, check if the linkage is sticking – I regularly apply lubricant for maintenance. Neglecting these minor issues makes driving in rain extremely dangerous, so they must be addressed promptly.

[VonCharles]

The reason why the wiper doesn't clean well is quite simple. The wiper blade becomes ineffective when it's old, so I recommend replacing it frequently. Clean the glass if it's dirty, and spray windshield washer fluid before it rains. Adjust the wiper arm if it's crooked to prevent it from wiping off track. Regular maintenance makes things easier and safer.

[DeIsla]

Unclean wiper blades are often due to improper maintenance. I noticed the wiper blades have a short lifespan, and a cost-saving method is to first clean the glass to remove oil stains. When replacing aged wiper blades, choose cost-effective options, and don't wait until the rubber hardens. If the wiper arm is bent causing poor wiping, I check and adjust its curvature. Scratches or frost on the glass also affect performance; in winter, preheat the glass before driving. These no-cost habits make wipers more durable and prevent accidents in rainy weather.

[AugustDella]

I've encountered the issue of wipers not cleaning properly, which can be caused by deteriorated rubber on the wiper blades, accumulated oil film or dust on the windshield. The wiper arm pressure was unbalanced, and I measured and corrected it. After ensuring the wiper motor was functioning normally, the linkage was stiff due to rust, which was resolved by adding some lubricant. Regularly deep cleaning the windshield is essential, and don't wait until the wipers are severely worn. Simple daily maintenance can significantly improve visibility during rainy conditions, making driving much safer.