Drivers are only just discovering hack to de-fog windscreen for free in 20 seconds using button found in every car

DRIVERS have discovered a hack that can de-fog a windscreen in just 20 seconds using a button found in every car.

You can clear your view in moments and even avoid a sizeable fines, according to one driving instructor .

YouTube / Driving School WA

YouTube / Driving School WA

The Aussie motors whizz expert explained the nifty trick on his YouTube channel.

You can use a number of everyday buttons on your dashboard bust condensation in no time, with one also acting as a “booster” for the effect.

Windscreens tend to mist up as the weather turns wintry as the level of moisture in the air increases.

This then meets cold glass and cools rapidly, clouding up the pane.

Car makers engineer plenty of tools to help solve the issue, but using and combining them correctly can make it easier than ever.

Air conditioning acts like a booster

The petrolhead urged drivers to make use of the heater button which activates the fan and pushes air towards the windscreen.

This can be easily identified by its international symbol , a rectangle with a rounded top and three wavy lines passing through the bottom.

It’s a universal feature in modern cars and pretty well known but, as the expert explained, should be used alongside two often forgotten tips.

First, make sure that you turn on the air conditioning function and don’t use the fan on its own.

The instructor said: “It’s best to put the air conditioning on because air conditioning acts like a booster.

“It’s going to do the job a lot quicker.

“You can crank it up to two or three and it’s going to clear it within literally 10, 15, 20 seconds.”

However, before you do that you should make sure to turn the temperature on the air con right down.

While it may seem counterintuitive, this prevents the cabin from becoming humid as the condensation dissipates.

Opening the window for a few seconds also helps the air escape and prevents the fog from coming back.

Once the windscreen clears, you can bring the temperature back up so you’re nice and toasty as you drive along.

And the handy hack could save you big as driving with your view obstructed is actually an offence.

If any part of your field of vision is blocked, it could land you in trouble with the law and see you slapped with a fine of up to £1,000 and three points on your licence .

Social media commenters were amazed by the revelation.

One wrote: “Really helpful, thank you.”

Another added: “Very well explained.”

It comes after another expert explained how two household items can be used to make a DIY rain repellent.

Meanwhile, an experienced car salesman revealed the three questions dealers hate as they guarantee you the best price.