Why does the rearview mirror keep making noise?

2 Answers
Luna
07/28/25 7:54pm
Persistent noise from the rearview mirror is caused by a lack of lubricating oil or dust and sand particles entering the rotating parts, leading to abnormal friction. Methods to resolve the noise: Remove the rearview mirror cover, spray lubricant on both ends of the spring, then manually fold and unfold the rearview mirror to check if the noise disappears. Repeat the spraying, folding, and unfolding process multiple times until the noise is gone. Additionally, clean any dust and sand particles from the internal rotating parts. Rearview mirror maintenance: Regularly clean the rearview mirror to keep it clear and free from dirt. If mud or water gets on the mirror, wipe it off immediately with a car cloth. In winter, use the electric folding function with caution. If dew, rain, or snow freezes on the exterior mirror, folding it electrically may damage the motor, making it impossible to unfold the mirror.
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DelJudah
08/12/25 12:44am
Oh, the rattling rearview mirror is really annoying. I've found it's usually caused by a loose mirror—either the mirror glass isn't secured tightly or the mounting bracket screws are loose, leading to a clattering noise at high speeds due to vibrations. It could also be wind noise; if the mirror housing is cracked or has gaps, wind rushing in can create a howling sound, especially in older cars. Another common culprit is debris stuck in the moving parts, like dust or small stones lodged in the adjustment mechanism, causing a squeak when manually adjusted. Once, after a car wash, water got trapped inside and didn’t dry properly, resulting in a persistent rattle the next morning. My advice: after parking, give the mirror a gentle shake and try tightening the screws. If the noise persists, don’t ignore it—head straight to a repair shop to avoid distracted driving. Routine maintenance helps too: wipe down the mirrors and periodically tighten screws to prevent this nuisance. Safety first—constant rattling can break your focus, and a falling mirror could spell real trouble.
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