Drivers can be fined £5,000 for 'forgetting' to press one button in the car today

Motorists be warned, as ignoring one crucial button in your car could see you facing a hefty fine as With the hot spell set to kick in from today, drivers neglecting to cool their car interiors could find themselves in quite the pickle, facing humidity levels higher inside their vehicles than out on the street.

can result in fatigued and distracted driving, leading to dangerous situations for fellow road users. Experts remind us that flipping on the air conditioning as soon as you buckle up is the optimal way to beat the heat, despite it being a bit more fuel-thirsty – a fact that makes many drivers think twice before using it, unaware of the potential consequences.

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Specialists at BigWantsYourCar warn: "Drivers are legally required to remain in full control of their vehicle at all times.

"During hot , failing to keep your vehicle adequately ventilated could result in impaired focus and drowsiness, both of which can be considered contributing factors to careless or even dangerous driving."

They hammer home the point: "Good ventilation is essential for safe driving. Without adequate airflow, car interiors can overheat rapidly, leading to fatigue and reduced awareness."

Adding an important tip, they state: "Opening a window or using air-con can make a significant difference to your concentration levels on longer journeys."

With the forecasting , and the balmy conditions expected to last through the weekend, keeping cool behind the wheel isn't just about comfort, it's about safety too.

Experts warn that motorists can be penalised for careless driving if they are involved in an accident due to inadequate ventilation, reports .

Minor incidents could result in drivers being slapped with fines up to £1,000 and receiving three penalty points on their licence. However, if poor ventilation contributes to a serious accident causing injury, the repercussions will be significantly more severe.

In such cases, motorists could potentially face fines up to £5,000, receive nine penalty points on their driving licence, or even be handed a driving ban.

Typically, drivers can activate their air conditioning using a button situated on the car's dashboard. However, some modern vehicles may require users to press a switch on the integrated infotainment system.

What many motorists may not realise is that air conditioning units have a finite lifespan. These systems operate on refrigerant gas canisters which gradually deplete with each use.

Most manufacturers advise drivers to undergo an air conditioning 'recharge' or car air conditioning 'regas' every two years.