What to Do When the Rearview Mirror Ball Doesn't Fit?

3 Answers
LaRyder
07/28/25 7:07am
Prepare tools such as snap ring pliers, screwdrivers, and needle-nose pliers. Use a screwdriver to pry the steel collar out of the ball groove, then apply some lubricating oil or grease to facilitate the installation of the rearview mirror ball.
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OJonathan
08/11/25 2:47pm
I just encountered this issue when repairing my own car. The ball joint of the rearview mirror couldn't fit into the base, most likely because dust or grease had accumulated on the surface, causing excessive friction and getting stuck. Take a soft cloth, dip it in some soapy water, and thoroughly clean the ball joint and the socket. Then spray some lubricant like WD-40, gently rotate it a few times to test the feel—sometimes it can slide right in. If the plastic components are deformed or have fine cracks, never force it in, as this could break the entire rearview mirror assembly, making replacement even more troublesome. An unstable rearview mirror while driving can obstruct your view, which is very dangerous, so I always prioritize checking and cleaning it. If I can't fix it, I immediately go to a repair shop for a replacement. When parking, try to avoid prolonged exposure to sunlight, as high temperatures can cause the plastic to expand, making installation even harder. Regularly clean the joint with simple methods, like using a toothbrush to remove dust, which can effectively prevent this issue from occurring.
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SanMolly
09/28/25 2:05am
Last winter, the ball joint on my old car's rearview mirror froze and I couldn't reinstall it no matter what, so I tried fixing it myself. First, I cleaned the connection point with alcohol swabs to remove residue, then used a hairdryer on low heat to slightly soften the plastic parts—too low a temperature would cause the material to shrink and harden, leading to jamming. Once warmed up, I slowly twisted and pushed it back into the base, avoiding brute force, until I heard a click indicating it was properly seated. If it feels loose afterward, applying some soapy water can help with lubrication. If lubrication doesn’t solve the issue, check if the ball joint has scratches or damage—sometimes lightly sanding the surface can improve the fit. Just remember to wear gloves for safety and avoid damaging other parts of the car. After finishing, always test the stability before driving; a shaky rearview mirror can be dangerous on highways at night.
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