What can be done if there is friction noise when the car window is raised or lowered?

[StJuliette]

Solutions for friction noise when the car window is raised or lowered: 1. Determine which door's glass is making the noise; 2. Raise the noisy window to the top, evenly spray panel wax into the gap between the outer seal strip and the glass, then raise and lower the noisy window two to three times, and the noise will usually disappear. If the noise persists, it may indicate a fault inside the window regulator, and professional assistance should be sought. Daily maintenance for car windows: 1. Use instruments and meters to inspect, test, and repair the control circuits and electronic components related to the car glass, addressing any circuit and mechanical faults that occur during glass installation; 2. Use professional tools to repair car glass; 3. Use testing tools to check the sealing of replaced car glass.