The RAC has warned drivers that using air conditioning while idling in hot weather could lead to fines of up to £110 for breaching vehicle emissions laws. Temperatures have approached 40°C this week, reminiscent of the record-breaking July 2022 heatwave.
Fines for Engine Idling
According to the RAC, remaining in a vehicle with the engine running causes air pollution and is punishable with a fine of up to £110 for those who refuse to switch off after being asked. The warning specifically cited Islington Borough Council in London, where the fine is £110 if not paid within 14 days, reduced to £55 if paid promptly.
The RAC added that drivers do not need to be in the vehicle for an offence to be committed, meaning those who leave engines running to cool the car before a journey could also be penalised. Standard penalties include a fixed penalty notice of £40 from a police officer or a penalty charge notice of £80 from a civil enforcement officer, both halved if paid quickly. Westminster Borough Council was highlighted as charging £40, reduced to £20 if paid within 28 days. Each council sets its own fining structure.
RAC Advice
Rod Dennis, the RAC’s senior policy officer, said: “While we’re all desperate to stay cool, just sitting in the car with the engine and air conditioning running and going nowhere isn’t advisable. Due to the air pollution this causes, you risk a fine from a police or civil enforcement officer.”
Tyre Safety in Heat
Steve Howat, technical expert at Continental, advised drivers to check tyre pressure during the heatwave. He explained: “The air pressure inside your tyres responds to the outside temperatures, and if this isn’t correct, your grip, fuel economy, safety, and breaking distance will all suffer. In extreme conditions like those forecast this week, incorrect tyre pressure can also contribute to uneven tyre wear, reduced handling control, and in worst-case scenarios, increase risk of a blowout while driving.”
Howat recommended checking tyre pressure regularly with a reliable gauge, especially before long journeys, and adjusting for additional loads as needed. Drivers should consult their vehicle handbook for recommended pressures.
