With UK summers becoming warmer and heatwaves more common, you may notice that long journeys feel more demanding on both you and your vehicle. High temperatures can place extra pressure on your engine and cooling systems, especially when you are stuck in traffic or driving for extended periods. A bit of preparation before you set off can help you avoid unnecessary stress, reduce the risk of breakdowns, and make the journey far more comfortable for everyone in the car.
Check the essentials before you leave
Start with your tyres, since heat causes air to expand and can affect pressure and grip. Check that all tyres match the manufacturer’s recommended levels and look for signs of wear or damage.
Next, make sure your coolant levels sit within the correct range, as this helps prevent your engine from overheating in slow traffic or hot conditions. You should also check your oil and windscreen washer fluid, so you are not caught out mid-journey. Test your air conditioning before you leave, since it often struggles after long periods of disuse.
Finally, take a moment to inspect your battery, as extreme temperatures can weaken performance and increase the chance of failure.

Make long journeys more comfortable during a heatwave
You can reduce heat inside your car by parking in the shade where possible or using sunshades on your windscreen before setting off. This helps keep the cabin cooler, so you are not immediately overwhelmed when you start driving.
Plan regular stops so you can rest, stretch, and stay hydrated throughout the journey. Avoid travelling during the hottest part of the day if you can, especially on longer routes. Pack essentials too such as water, sunglasses, portable fans, and phone chargers so you stay comfortable and connected if plans change.
Plan for the unexpected on summer roads
Hot weather can increase the risk of breakdowns, especially on older vehicles or those that have not been serviced recently. Carry basic emergency supplies such as water, a warning triangle, and a first aid kit so you are prepared if something goes wrong.
Make sure your phone is fully charged before you set off, since you may rely on it for navigation or roadside support. Check traffic and route conditions in advance so you can avoid congestion where possible.
Alongside preparing your vehicle for hot weather, it is worth reviewing practical protections such as car insurance that includes suitable levels of breakdown and roadside assistance cover before you set off on a long summer journey, so you are not left stranded without support if problems arise.
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