What Causes the Noise When the Car Window Glass Descends?
3 Answers
Reasons for noise when the car window glass descends: 1. Aging rubber guide channels: After prolonged use, slight sticking during the lifting and lowering process becomes particularly noticeable. Solution: Clean the rubber guide channels thoroughly, then dry and apply lubricant for protection. 2. Dirt accumulation between the glass and sealing strip: Dust and grime buildup can cause noise during window operation. Solution: Use a tool like a toothpick to remove debris and apply lubricant to maintain the rubber's flexibility. 3. Damaged window lift motor: If the window glass tilts to one side or fails to respond, the motor needs replacement at a 4S shop. It's recommended to regularly maintain vehicle rubber components, including door seals, window seals, engine compartment seals, wiper blades, and trunk seals. Apply a specialized rubber protectant by spraying it on the rubber and wiping it off, which forms a protective film on the surface and enhances the rubber's flexibility.
Recently, my car window has been making a rattling noise when rolling down. At first, I thought it was some small object stuck inside. Upon reflection, it might be dust or small stones accumulated in the tracks, causing friction over time. Another possibility is the aging and deformation of the rubber seals around the window, which harden and increase resistance. I remember a 4S shop technician mentioning that worn-out cables in the window regulator or loose screws could also cause unusual noises. I even tried spraying some window lubricant myself, but the effect was minimal. Eventually, I took it to a professional repair shop where they cleaned the tracks and applied specialized lubricant, solving the problem. Now, I make sure to clean the door gaps every time I wash the car to prevent it from happening again. In short, while the noise might seem minor, ignoring it could damage the entire window regulator system, leading to costly repairs.
The abnormal noise when the window glass descends is mostly caused by issues with the glass lifting track. Dust, sand particles, or foreign objects accumulated inside the track can obstruct the movement of the glass, resulting in friction sounds. Aging and cracking of the sealing rubber strip, which loses its elasticity, can also increase friction when the glass is lowered, producing squeaking noises. Another common fault point is the lifting mechanism, such as wear and tear on the steel wire rope or gears. I usually enjoy tinkering with car parts myself and have tried using a soft brush to clean the track under the door panel, followed by spraying some silicone-based lubricant, which can temporarily alleviate the issue. However, if the abnormal noise occurs frequently, it is advisable to check whether the motor is overloaded. In terms of prevention, regular cleaning and maintenance are crucial—don't wait until a major problem arises to regret it.
