Motorists advised to check vehicles before travelling in soaring temperatures

Motorists are being advised to take extra care during this week’s extreme heat, with breakdown services expecting a significant rise in call-outs as temperatures reach unusually high levels across the UK.

With red weather warnings issued for parts of the country, RAC road safety spokesperson Rod Dennis said:

“Red extreme heat warnings are rare and we urge everyone to take them seriously this week. Drivers whose vehicles don’t have effective air conditioning should strongly consider postponing any non-essential car journeys until the Met Office’s weather warnings are lifted and temperatures drop. If this isn’t possible, our best advice is to travel during cooler times of day. This is especially important for anyone travelling with vulnerable people, including young children and older adults, who are at greater risk from the intense heat. We’d also remind motorists never to leave pets inside a hot vehicle, as doing so can quickly become fatal.

“This week could end up being a record-breaking one for June – not just because of the heat, but also for the number of drivers breaking down. Our last busiest June was three years ago, but there’s every chance that could be eclipsed this week as temperatures soar. Today, we expect breakdown volumes to be around 20% higher than what’s normal for a Monday in late June.

“We ask anyone who breaks down to be patient while breakdown providers prioritise the most urgent roadside jobs. The heatwave will affect services right across the UK and while all patrols will be working incredibly hard to assist drivers, longer waits are more likely. Staying safe in the heat is paramount, so we strongly recommend packing an emergency breakdown kit (see below) and waiting in the shade wherever possible.

“There are simple steps motorists can take to reduce the risk of a breakdown in the first place, however. It begins with a few basic checks under the bonnet before setting out. Make sure oil levels are sufficient and top up if needed. Coolant should also sit between the ‘min’ and ‘max’ markers – if it isn’t, top it up yourself when the engine is cold and have it inspected by an RAC mobile mechanic or reputable garage as soon as possible.

“At these kinds of temperatures, road surfaces will soften, with darker patches of tarmac often the clearest indicator. Drivers may therefore see councils deploying gritting vehicles – a sight normally reserved for the winter – as applying a fine layer of granite dust can help maintain traction on melting roads. Motorists also shouldn’t be concerned if they spot water beneath their vehicle, as this is typically just condensation from the air conditioning system.”

The RAC is warning that soaring temperatures could lead to a sharp increase in vehicle failures, with drivers encouraged to carry out a few simple maintenance checks before travelling. Ensuring engine oil and coolant levels are correct can help reduce the likelihood of overheating and mechanical problems.

Breakdown providers are also advising motorists to plan journeys carefully, avoid travelling during the hottest periods of the day where possible and be prepared for potentially longer waiting times if roadside assistance is required.

In addition, local authorities may take unusual measures to protect roads from heat-related damage, including spreading granite dust on softening road surfaces to improve grip and safety.

RAC advice for keeping vehicles cool during hot weather

Drivers can take several practical steps to make travelling more comfortable and reduce heat-related issues:

• Always carry an emergency breakdown kit before setting off.
• Park in shaded areas whenever possible to prevent the vehicle interior from overheating.
• Cover leather seats with a blanket or jacket to stop them becoming excessively hot in direct sunlight.
• Familiarise yourself with your vehicle’s air conditioning or climate control system and use the most effective cooling settings.
• Keep drinking water and soft drinks in the car to help prevent dehydration.
• Store refreshments in a cool bag or cool box to keep them chilled during long journeys.

Recommended emergency breakdown kit

Drivers travelling during periods of extreme heat should consider carrying:

• Plenty of drinking water for all occupants.
• Non-perishable snacks that can withstand high temperatures.
• Hats and umbrellas for sun protection.
• Sunscreen.
• Any essential medication.
• A fully charged mobile phone with breakdown assistance apps already installed and logged in.
• Appropriate supplies for pets, including food, water and a safe way to secure them if they need to be removed from the vehicle.