What Causes the Sand-Like Friction Sound When Rolling Up the Window?
2 Answers
Window glass seal aging: The abnormal noise when rolling up the car window glass may be caused by aging of the window glass seal. After the seal ages, the friction increases, leading to the noise. This situation tends to be more noticeable in summer, as the aged seal expands more significantly after exposure to sunlight, resulting in greater friction and more severe noise. Dirty gap between the glass and seal: Another possible reason is that the gap between the glass and the seal is too dirty. Particles in the dust rubbing against the glass can also produce abnormal noise.
When driving, I hear a rustling friction sound from the window going up and down. Experience tells me it's mostly due to dust and sand particles getting into the tracks, especially noticeable after driving on sandy roads or in rainy weather. Aging door seals can allow dirt to seep in, accumulating and causing the friction noise. I tried cleaning the window gaps with a soft brush and spraying some silicone-based lubricant, and the sound basically disappeared. If ignored, the glass might get stuck or the window regulator could be damaged, leading to higher repair costs. For prevention, I regularly have the car wash attendant clean the window tracks during washes, and a home air spray can also makes for an easy DIY solution.
