How to Deal with Rearview Mirrors on Rainy Days?
3 Answers
Before applying, slightly moistening the soap will make it softer and easier to spread on the glass surface. After installing rain deflectors, the phenomenon of water droplets on the rearview mirrors can indeed be alleviated to some extent, especially during light rain when the effect is most noticeable. Apply car wax to the exterior rearview mirrors using a sponge, then rinse with clean water. The protective layer of wax can prevent rainwater from staying on the mirror surface. Crush a large clove of garlic and evenly spread the juice on the rearview mirrors. Areas treated with garlic will not have water droplets adhering to them.
When driving a ride-hailing car in the city during rain, water accumulation on the rearview mirrors is particularly annoying. I always keep a chamois cloth handy to wipe the mirror surfaces when parked, as oil film and dust make it harder for rainwater to slide off. When I got the new car, I applied a rain-repellent film that creates a lotus leaf effect, causing water droplets to roll off—this lasts for about half a year. I also make a habit of turning on the rearview mirror heating function, though in heavy rain, it needs to be activated ten minutes in advance. Special attention should be paid to defogging the windows by directing the air conditioning vents toward the side windows; reducing the temperature difference between inside and outside minimizes condensation. Most importantly, in rainy conditions, reduce speed to below 40 km/h and double-check blind spots before changing lanes.
Last week while driving on the highway, I suddenly encountered heavy rain and the rearview mirror became completely blurred like frosted glass. As an emergency solution, I used lipstick to draw an X on the mirror and then wiped it off—the oily layer helped water droplets gather and slide off. For a long-term solution, you can buy silicone rain deflectors on Taobao for about 30-50 yuan; once installed, they divert rainwater to the sides. It’s recommended to regularly clean the mirror with dish soap to remove oil film, which improves the effectiveness of water repellents. Recently, I discovered a new trick: lowering the driver’s side window by about 1 centimeter allows airflow to blow water off the rearview mirror, but remember to turn on recirculation to prevent rain from coming inside.
