Can a Car's Windshield Washer Reservoir Freeze and Burst?
2 Answers
Car windshield washer reservoirs will not freeze and burst. Here are the reasons: 1. Washer fluid disperses rainwater: It can quickly disperse rainwater on the windshield, preventing the windshield from becoming blurred during heavy rainfall. 2. Washer fluid generates electrical charge: It neutralizes the electrical charge generated by friction between the windshield, wipers, and airborne particles, enhancing the conductivity of the glass surface, resisting static electricity, and preventing charge-induced dirt accumulation that could obstruct vision. 3. The pH value of washer fluid remains neutral: It contains no metal ions and does not corrode car paint, rubber, or any metal components.
I've always lived in areas with very cold winters and have personally witnessed a neighbor's car windshield washer reservoir freeze and burst. When the water inside the reservoir freezes, it expands, increasing in volume and cracking the plastic or metal container. The reason is simple: plain water without antifreeze treatment turns into ice blocks at low temperatures, occupying more space. The reservoir material can't withstand the pressure and bursts. My own car fell victim to this once when I forgot to switch to antifreeze fluid. After freezing, the reservoir developed a large crack, all the washer fluid leaked out, and I had to spend hundreds of dollars on a new reservoir and labor costs for repairs. Now I've learned my lesson - I always switch to antifreeze windshield washer fluid before winter, which resists low temperatures and doesn't freeze. When filling the reservoir, be careful not to fill it completely, leaving some space, but it's best to use professional products. After regular car washes, dry any residual water to reduce freezing points. Such small oversights can easily lead to big problems, affecting driving visibility and safety. I recommend everyone regularly check fluid levels and properties, opting for brand-certified antifreeze products.
