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All you have to do is stuff a few heating pads in and around the reservoir bottle, preferably lower to allow the heat to rise upward. If you find yourself struggling to think of what else to do, the next best option is to use heating pads. Now you can clear the system of the no-good washer fluid and replace it with a better solution. The hot air will circulate around the frozen fluid and it will eventually thaw.
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If you’re able to safely get your hairdryer close enough to your car, plug in the hairdryer turn it on and point it at the windshield washer reservoir and hoses. With this option you'll need to either get your car parked close to an outlet or use an extension cord. If you don't have a garage you can park your car in, or you don't have time to wait, there are a few other options. Once the fluid is back to a liquid state, you have to drain it from the system and put in the proper fluid, preferably a good quality anti-freeze windshield wiper fluid. Although this is the simplest solution, it can take a bit of time for your windshield wiper fluid to thaw, but at least it doesn't require much work. The easiest way to get your window washer fluid back to a liquid state is to park your car in a warm garage.
FROZEN WINDSHIELD WASHER FLUID CRACK
The hot water mixed with the cold air can crack your glass window. Warning: No matter what option you choose to thaw out your windshield wiper fluid, do not pour hot water over the nozzles to try and thaw any ice buildup. In case you didn’t think about this beforehand and you’re already experiencing a frozen solution, here are a few tips to help you thaw it out. Methods for Thawing Windshield Washer Fluid After you manage to thaw it out, you have to drain it completely and put in a better washer fluid, or you're not really fixing the problem. The important thing to remember is that if it freezes once it will freeze again. If your washer fluid freezes, you have to thaw it out. Not to mention, cheaper washer fluids already have more water mixed in than the more expensive ones. Sometimes even the “right” fluid gets old and the methylated spirits evaporate, making your washer fluid mostly water, and we all know that water freezes rather quickly in freezing temperatures.
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You can also buy an anti-freeze windshield wiper fluid, which is typically alcohol-based this solution will not only prevent freezing, but also melt frost and ice on your windshield. You do not want to use a summer blend in the winter, because it will have more water in it than a winter blend. The ratio in a winter solution is typically 1:1-1 part anti-freeze and 1 part water-whereas a summer blend is usually 1:10-1 part antifreeze and 10 parts water. There are many different kinds of windshield washer fluid, from “all-season” to “de-icer,” but if you live anywhere that gets extremely cold, you're going to want to pick up a winter solution, rather than a summer one. To prevent your windshield wiper fluid from freezing make sure you buy a good quality windshield wiper fluid that is appropriate for the weather. Of course, prevention is always the best option.
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