What do I do if my windscreen is frozen?

What do I do if my windscreen is frozen?

Winter mornings can be difficult enough without stepping out of the front door to find your car's windscreen frozen. However, there are some rules you should follow for de-icing your windscreen:

What to do:

  • The best method is to invest in a can of de-icer and a scraper. Spray the de-icer all over the windscreen and then scrape off the melting ice with the ice scraper. Don't be tempted to use a credit card, CD case or any other such device, as you could scratch your windscreen.
  • Most good screenwashes also contain de-icer – this can help clear the ice from your windscreen and prevent your wash bottle and spray nozzles from freezing.
  • Make sure you defrost the entire windscreen - not just the small area in front of the driver's seat - plus, all the other windows and the mirrors. Do it before you set off, otherwise your view may be dangerously restricted.

What not to do:

  • Firstly, ignore all the advice about boiling hot kettles. It may seem logical that hot water will melt the ice, but if the water's too hot it could cause your windscreen to crack. Also, the water may spill on the ground and freeze, forming a dangerous ice slick.
  • Simply sit in your car with the engine running and the fan on, waiting for the heat of the car to de-ice the windows. Not only will this take a long time, but also it wastes fuel and increases wear on the engine.
  • Sitting in your car and trying to get rid of ice or snow with the windscreen wipers. This isn’t such a good idea and will probably just lead to broken wipers.
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