The Met Office has issued a red heat alert for Wednesday and Thursday, with temperatures expected to hit 38C across large parts of the country, including Birmingham. Drivers planning to travel during this period are being warned to avoid seven common heatwave mistakes that could lead to breakdowns, accidents, or costly repairs.
Heatwave driving mistakes to avoid
Sten Saar, CEO and Co-Founder of Zego, commented: "Many drivers don't realise that extreme heat can place just as much strain on a vehicle as winter weather. From increased pressure on tyres and cooling systems to damage caused by items left inside the car, a heatwave can create a range of avoidable risks."
Mistake 1: Ignoring coolant levels
A car's cooling system works harder in hot weather. Low coolant levels can cause the engine to overheat, potentially leading to costly damage. Saar advises: "Drivers planning longer journeys should check coolant levels before setting off and ensure the fluid is topped up to the recommended level. If your vehicle's temperature gauge starts rising unexpectedly, pull over safely and allow the engine to cool before continuing." Engine overheating can lead to repair bills running into hundreds or even thousands of pounds.
Mistake 2: Failing to check tyre pressures
Tyre pressures fluctuate with temperature. Underinflated or overinflated tyres affect handling, increase stopping distances, and accelerate wear. Combined with hot road surfaces, incorrectly inflated tyres may increase the risk of a blowout. "A quick pressure check could improve safety and help drivers avoid unnecessary costs this summer," says Saar. Replacing a damaged tyre can cost well over £100.
Mistake 3: Overloading the vehicle
Excess weight from luggage puts added strain on tyres, brakes, and suspension, especially during long journeys in high temperatures. "Overloading a vehicle places additional pressure on key components and can impact both safety and fuel efficiency," Saar notes. Drivers should travel light where possible.
Mistake 4: Leaving aerosol cans in the car
Items such as deodorants, hairsprays, and air fresheners can become pressurised in heat, potentially leaking or rupturing. "Many drivers don't think twice about leaving everyday items such as aerosols in their car, but these products are designed to be stored within certain temperature ranges," Saar warns.
Mistake 5: Leaving sunglasses on the dashboard
Direct sunlight can warp frames and damage lens coatings. Saar advises storing sunglasses in a case or glove compartment when not in use to avoid damage and reduce glare.
Mistake 6: Running on a near-empty fuel tank
Low fuel levels can strain the fuel system and increase the risk of debris entering the system. "Running on fumes might seem harmless, but consistently driving with very little fuel can put extra strain on key components and leave drivers with little margin for error if they encounter traffic or unexpected delays," Saar explains.
Mistake 7: Leaving electronics in direct sunlight
Phones, tablets, and power banks can overheat, causing battery damage or automatic shutdown. Saar recommends storing tech items in a shaded, hidden compartment such as the boot or inside a bag.
Saar concludes: "Many of these mistakes take just a few minutes to avoid, but the consequences can be costly if they're ignored. Carrying out a handful of basic checks before setting off can help motorists stay safe, protect their vehicle and avoid unnecessary breakdowns. Remember to also always take a bottle of water with you to stay hydrated in case of unexpected delays."
