As summer temperatures continue to soar, motorists have been warned that a common mistake when using their car’s air conditioning could result in a major fine. The issue stems from anti-idling rules, which forbid drivers from running their engine unnecessarily while parked on a public road. Even if the engine is only on to power the aircon unit, it can trigger a fine.
Anti-idling rules and penalties
Under the anti-idling rules, local authorities may issue a fixed penalty notice, although the value varies between councils. Generally, it starts at around £20 for motorists who continue idling after being asked to switch off their engine. This fine can increase to £40 if left unpaid for too long. In some areas like Islington, drivers could face a £110 fine, reduced to £55 if paid within 14 days.
Graham Conway, managing director at Select Car Leasing, said: “Sitting in a parked vehicle with the engine running simply to power the air conditioning could result in a penalty. Being inside the car does not automatically make idling acceptable.”
Keeping cars cool without idling
Temperatures inside a parked car can quickly become dangerously hot, and motorists are warned never to leave children, vulnerable adults, or pets unattended in a parked vehicle. Conway revealed other ways to keep parked cars cool without risking a penalty notice. It will be easier to cool the inside of the car while travelling, so make the most of this before stopping and switching off the engine. Parking in the shade or using a windshield sunshade can help keep temperatures down. Once stationary, opening the doors can allow hot air trapped inside to escape, or motorists can head outside the car if it is safe to do so.
Conway added: “Try to park in shade where possible, use a windscreen sunshade and open the doors briefly before getting inside to allow trapped hot air to escape. If you need to wait for somebody, it may be safer and more comfortable to leave the vehicle and find a shaded or air-conditioned building rather than sitting in a rapidly heating cabin.”
When idling rules do not apply
These rules do not apply if you are sitting in ordinary traffic, waiting at lights, defrosting a windscreen, or temporarily at a standstill because of traffic. In these situations, motorists are usually allowed to keep their engines running despite being stationary. Conway noted: “Drivers should not assume the penalty will always be only £20. In London especially, councils are under considerable pressure to reduce roadside pollution, so motorists could find idling rules enforced more firmly in known problem areas.”
