Why Doesn't the Car Wiper Clean Properly?
3 Answers
Reasons why the car wiper doesn't clean properly: 1. Dirty windshield. Inadequate cleaning of the windshield during regular car washes can leave sticky particles attached to the glass, preventing the wiper from cleaning properly and potentially damaging it. Simply take your car to a professional wash for a thorough windshield cleaning. 2. Hardened wiper blade. Aging wipers can harden. You can replace the wiper blade or clean the wiper with a lubricant. 3. Misaligned wiper arm. Adjust the angle of the wiper arm by using an adjustment wrench to hold the wiper and gently rotate it to straighten it, or visit a repair shop for professional adjustment.
Last time I chatted with the mechanic at the auto repair shop, he told me that if the wipers aren't cleaning properly, it's 80% likely due to aged rubber blades. Rubber can't withstand prolonged sun exposure - it hardens and cracks in about two years, leaving water streaks on the windshield at minimum. Honestly, the easiest solution is just replacing the rubber inserts; it only costs a few dozen yuan. But before DIY replacement, carefully wipe the blade edge with a damp cloth - sometimes tree sap or insect residue stuck there affects wiping performance. Oh, and never use dish soap to clean the windshield - alkaline water marks will cause wiper chatter and worsen fogging. Also check the wiper arm angle - once my car's wipers made terrible flapping noises because the spring tension was too loose to press firmly against the glass.
Sisters, don't rush to replace your wipers when encountering this situation! Here's a handy trick I learned last week: soak a kitchen towel with a mixture of white vinegar and water, then place it on the windshield for ten minutes—this can remove most of the stubborn water stains and oily films. Remember to clear out fallen leaves and tree seeds from the glass seams, as they can jam the wiper arm motor and cause it to burn out. When washing your car, don't let the attendants use wax on the front windshield—that oily film will give you headaches for half a month. If the wipers freeze in winter, never force them loose; keeping a bottle of -25°C windshield washer fluid is more reliable than relying on heating functions. The area near the rear window defogger lines often doesn't get cleaned properly—use a soft-bristled toothbrush dipped in alcohol to scrub the rubber groove.
