Passat Window Glass Rattle Noise?
2 Answers
Passat window glass rattle noise can be caused by the following reasons: Excessive debris between window glass: Too much dust in the gap between the window glass and the sealing strip can cause this issue. When there is an accumulation of debris, the particles rubbing against the glass can create noise, leading to jerky movement during raising and lowering. Aging of sealing strip: The glass sealing strip can also age over time. An aged sealing strip increases friction during window operation, resulting in noise. This is particularly noticeable in summer when the aged sealing strip, after exposure to sunlight, becomes not only dry but also expands more severely, further increasing friction.
I've been driving a Passat for many years, and the issue of window rattling is quite common. It's mostly caused by dust accumulation in the tracks or insufficient lubrication. For example, during dusty summers or dry winters, the glass may make creaking or clicking noises when rolling up or down. You can try fixing it yourself: first clean the tracks with a soft cloth, then spray some window-specific lubricant—it usually works immediately. If the rubber seals are old and causing friction, applying some rubber conditioner can also help. If the noise persists, it might be due to a faulty window regulator motor or internal mechanism issues, in which case you should visit a repair shop for professional inspection and repair. Don't delay, as minor problems can escalate over time, affecting the window's functionality. In an emergency while driving, you might not be able to close the window, increasing risks.
