Drivers could face £5,000 fine for one mistake

are being warned to avoid one common mistake as the , or face a whopping £5,000 . As sweeps several parts of the country, experts have urged motorists to properly ventilate their vehicles.

According to Rule 237 of the Highway Code, drivers must ensure their vehicles remain well-ventilated to avoid drowsiness and maintain full control at all times. Car valuation experts at said that overlooking this guidance, such as not using air conditioning or opening windows when temperatures rise, could be considered careless driving if it results in a lack of concentration or contributes to an accident.

They said: "Breaking Rule 237 could result in an on-the-spot fine if you're judged to be driving carelessly or are involved in a collision due to poor ventilation.

"An overheated vehicle can quickly lead to driver fatigue, creating a potentially dangerous situation behind the wheel."

Experts explained that maintaining a comfortable internal temperature is not just about comfort; it also directly affects road safety

A hot and stuffy vehicle interior can reduce alertness, slow reaction times, and significantly increase the risk of making mistakes.

They added: "Drivers are legally required to remain in full control of their vehicle at all times. During hot weather, 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."

In less severe cases, this could lead to fines of up to £1,000 and three penalty points. However, if a lack of ventilation is linked to a serious accident resulting in injury, the consequences can be far more severe, with fines reaching up to £5,000, nine penalty points, or even a driving ban.

The experts said: "Good ventilation is essential for safe driving. Without adequate airflow, car interiors can overheat rapidly, leading to fatigue and reduced awareness. Opening a window or using air-con can make a significant difference to your concentration levels on longer journeys."