Your Dream Car is Waiting For You. Click Here to Shop Online.


How to Defrost Car Windows


The frigid winters of Stratham, Portsmouth, and Exeter, NH, can turn any cheery morning person into a grump. This is especially true when you have to commute and find frost on your car windows every day.

While you might want to throw your scalding coffee all over your car to get the frost off, BMW of Stratham offers a few helpful solutions for how to defrost car windows below.

Why Frost Forms on Car Windows

Frost on your car windows results from outside moisture freezing onto the glass. This moisture can either come from fog, rain, ice, or snow. While you’re driving around throughout the day, the moisture will build up and sit on your windows.

While your car rests in your driveway overnight, this moisture will freeze and create the frost you see.

How to Defrost Car Windows

Car Heater Window Solution

Method 1: Turn on Your Heater

One method that will effectively get rid of your window frost is turning on the heater in your car and letting it run for five to 10 minutes. The heat will remove the moisture in your car while also melting the ice on your windshield and other windows.

This will be the most convenient method if you can access your car’s climate control system remotely. Simply turn up your heat from your mobile device and your car will be ready for you by the time you head out the door.

Just remember to keep the air circulation feature off when defrosting your windows with this method.

Method 2: Pour Lukewarm Water Over Your Windows

Lukewarm (not hot!) water can be a quick, convenient, and effective defroster. You just have to make sure that the water is not too hot.

After pouring it on your windows, scrape off the slush and you should be good to go.

Method 3: Mix up a Solution

Mixing one-third water and two-thirds rubbing alcohol will result in an effective, inexpensive, and eco-friendly defrosting solution.

The alcohol has a lower freezing point than water, so it will start the melting process while preventing ice buildup. You can also keep this solution in your vehicle for on-the-go defrosting.

Cracked Windsheild

What Not to Do

If you’re looking for the quickest solution, you might just run your jacket sleeve over the surface of the frost. However, you’ll notice that this doesn’t give you the result you were looking for. Instead of a clear window, you now have streaks and the frost will return.

You should also not pour hot water on your car windows or try to dry them with a hair dryer or portable heater. While at first these might seem like great tactics that will quickly defrost your windows, they might actually cause more harm than good.

That’s because hot temperatures can cause your freezing window to crack. So, while you might want to defrost as fast as possible, a slower and steadier approach will get you the results you want.

Learn More Vehicle Tips and Tricks from BMW of Stratham

With these methods in your arsenal, you can get on the roads of Stratham, Portsmouth, and Exeter, New Hampshire, much faster. If you have any more questions about how to handle common car issues, reach out to the team at BMW of Stratham. We are always happy to assist!


BMW of Stratham 43.0109042, -70.9188738.