Boiling Water on Windscreens: 1 in 5 Drivers Risk Costly Crack
Common defrosting mistake risks cracking your windscreen

Motorists across the UK are being urged to abandon a risky winter habit that could leave them facing a hefty repair bill for a shattered windscreen. As temperatures plummet, the rush to clear frost quickly is leading many to use methods that experts warn are damaging their vehicles.

The Dangerous Shortcut Too Many Drivers Take

New research has revealed a startling statistic: nearly one in five (19%) motorists have admitted to using boiling water from a kettle to clear ice from their windscreen. The logic is simple – hot water melts ice fast. However, this rapid method poses a severe threat to the vehicle's glass.

The extreme and sudden change in temperature between the freezing glass and the scalding water can cause the windscreen to contract violently and crack. What seems like a quick fix can instantly become a costly and inconvenient problem, requiring a full windscreen replacement.

Other Common De-icing Errors to Avoid

Pouring boiling water isn't the only mistake drivers make in the morning frost. The research, highlighted by motoring experts at eBay, found that an even higher number of people are potentially damaging their cars in another way.

Almost a third (30%) of drivers said they use their windscreen wipers to clear ice. This practice puts significant strain on the wiper blades, which can tear or become misshapen, and risks burning out the wiper motor as it struggles against the frozen resistance.

Abir Tewari, UK director of commercial operations, parts and accessories at eBay, commented on the findings. "Following the first cold snap of the season, we’re seeing motorists use a range of methods to clear their windscreens — some more effective and safer than others," he said. "It’s vital drivers prepare their vehicles properly for challenging winter conditions."

The Safe Way to Clear Your Windscreen

So, what should you do instead? While it requires a little more patience, experts unanimously recommend the following safe approach:

  • Use a proper ice scraper and de-icer spray: These are designed for the job and won't harm your glass or paintwork.
  • Turn on your car's heater and blower: Direct the warm air onto the windscreen while you gently scrape from the outside. This combination is the most effective and safest method.
  • Plan ahead: Allow extra time on cold mornings for the de-icing process. A few minutes of patience can save you hundreds of pounds.

The key takeaway is to avoid any technique that involves a drastic thermal shock to the glass. Taking the correct, albeit slightly slower, route to a clear view is a small investment to protect your car from unnecessary and expensive winter damage.