What Causes the Noise When the BMW 5 Series Wiper Blades Fall?
2 Answers
BMW 5 Series wiper blades may produce noise when falling due to the following reasons: Deterioration and hardening of wiper blade rubber: Impurities on the windshield, the quality of the wiper blades, or prolonged use can cause the rubber (wiper blade) to age, deform, or harden. This prevents proper contact with the glass or turns the "wiping" action into a hard "scraping" motion, resulting in noise. You can directly replace the wiper blades and add some specialized cleaning fluid to the windshield washer reservoir to increase lubrication and eliminate the noise. Poor motor condition or malfunction: Abnormal motor operation or external circuit voltage issues can cause irregular movement or noise. For example, insufficient working voltage or problems with the relay control section can also lead to abnormal operation or noise. Visit a 4S shop for timely repairs.
I had a similar experience with my own BMW 5 Series. That time when it was raining, the wiper made a creaking sound as it moved, which was particularly annoying. Later, upon inspection, I found that the wiper blade had aged and hardened, and the rubber had lost its elasticity, making the wiping action less smooth, especially with the increased friction during rain. Another common issue is dust or small twigs getting stuck at the joint of the wiper arm. Over time, as debris accumulates, it can cause strange noises. I replaced the wiper blades myself and applied some silicone-based lubricant to the bearing area, and now it runs much more quietly. Regular cleaning of the windshield and wipers is essential, such as wiping them with a soft cloth every month to prevent debris buildup that could lead to more significant wear. If not addressed in time, the motor might overload and burn out, which would then be costly to repair. Parking in a garage or under shade can extend their lifespan. This simple and cost-effective method has saved me a lot of trouble.
