Why Doesn't the Car Wiper Clean Properly?

[KalebLee]

Here are the reasons why car wipers don't clean properly: 1. Wiper arm angle issue If the wiper itself is intact but still doesn't clean properly, it might be due to the angle of the wiper arm. Adjusting the wiper arm can solve this problem. If the spring is too tight, you can loosen the distance between the springs. 2. Wiper blade hardening Long-term exposure to sunlight, wind, and rain can cause the rubber strip of the wiper blade to age. When the wiper doesn't clean properly, it's often due to the aging of the rubber strip, in which case you may need to replace the rubber strip depending on the situation. Additionally, there might be dirt on the wiper, so check and clean it. 3. Oil film on the glass If the wiper is ineffective, the problem could either be with the wiper itself or the windshield. One possible issue is the presence of an oil film on the windshield. This oil film comes from vehicle exhaust emissions on the road, and no matter how much you use the wiper, it won't help. You can easily identify the oil film by splashing some water on the windshield. To clean the oily film, kitchen degreasers work well. 4. Foreign objects between the wiper blade and windshield When you turn on the wiper and hear a sharp friction sound between the wiper blade and the windshield, check for any foreign objects under or on the wiper blade to ensure nothing is affecting the cleaning. If the windshield is too dirty, such as after driving on muddy roads or in rain when the glass is covered in mud or snow, you should first wipe off part of the dirt or remove the snow with a cloth. When wiping, lift the wiper and wait a while before using the wiper with water.