What to Do When Car Mirrors Are Not Visible on Rainy Days?
2 Answers
Rain guards are easy to install and inexpensive, providing good effectiveness during light rain, but their downside is limited effectiveness during heavy rain. Apply soap to a damp cloth, then wipe the mirror with it. After the mirror dries, gently remove any residue with a tissue. The main component of water repellent is silicone oil, which alters the surface tension of water on the glass, preventing water from adhering to the mirror's surface. Scrub the mirror with detergent and wipe it dry with a towel. Once the mirror is dry, gently remove any residue with a tissue.
Having driven for over 20 years, I often encounter situations where the rearview mirrors become unclear after heavy rain. This is mainly because rainwater accumulates on the mirror surface, obstructing visibility. To address this, several approaches can be taken. The simplest is to prepare in advance—spraying windshield washer fluid on the mirrors can temporarily clear the rainwater, though the effect is limited. I frequently use rain repellent spray, which causes rainwater to quickly roll off and lasts about a week; it can be bought on Taobao for just a few dozen yuan. Additionally, when parked, you can install rain deflectors—plastic covers that block most rainwater from directly hitting the mirrors, and they are easy to install. Opening windows in the rain is risky, so I keep a towel in the car to wipe away fog or rainwater as needed. Remember, avoid using the defroster's high-intensity setting, as it might make the mirrors even blurrier. Most importantly, don’t rush to hit the road—first check the clarity of all mirrors to ensure safety and avoid accidents caused by obstructed vision. During routine maintenance, ask the mechanic to inspect the mirrors for issues, as driving in the rain doubles the danger.
