What are the reasons for the wiper not cleaning the windshield properly?
2 Answers
The reasons for the wiper not cleaning the windshield properly are as follows: 1. The windshield washer fluid has not been replaced for too long. Generally, the shelf life of windshield washer fluid is 2-3 years. If expired washer fluid is used for a long time, not only will the wiper fail to clean properly, but it may also cause obvious scratches on the windshield, posing certain safety hazards. Therefore, it is very necessary to replace the windshield washer fluid regularly. 2. It may also be due to the wiper becoming hardened. The wiper should be checked every month to see if there is any hardening. If so, the wiper should be cleaned with lubricant as soon as possible, or a new wiper can be directly replaced. Steps to replace the wiper: 1. First, lift the original wiper arm of the car to a 90-degree angle and slowly flip the wiper blade to a certain angle. 2. Then press the connector button between the wiper blade and the wiper arm to remove the original wiper. 3. The installation sequence is the reverse of the removal steps.
I think there are several common reasons why wiper blades don't clean the windshield properly. First is aging wiper blades - the rubber strips harden and crack after prolonged use, making them unable to wipe away water marks effectively. I've experienced this myself - after a few years of driving, the blades wore out and left streaks whenever it rained. Second is oil film and dirt buildup on the windshield. Daily driving exposes the glass to dust and insect residue, forming a sticky film that even vigorous wiping can't remove - it requires special oil film remover cleaner. Then there's the issue of deformed or loose wiper arms causing improper contact with the glass surface, especially on bumpy roads. Additionally, insufficient power from the wiper motor or stuck linkage can cause uneven wiping force. I recommend regularly checking the blades and replacing them every six months, while also cleaning the windshield surface during replacement - maintaining clarity is crucial. Don't delay addressing this issue, as blurred vision during rain can easily lead to accidents and compromise safety.
