As temperatures soar to 34°C during the UK’s latest heatwave, many drivers are relying on their car air conditioning more than ever. But there’s a lesser-known button in your vehicle’s AC system that can help you stay cool more efficiently—and save money on fuel.
This button activates the “recirculate” mode on your air conditioning. Instead of pulling in hot outside air, it recirculates the cooler air already inside your vehicle. This means your AC doesn’t have to work as hard to cool down the cabin, reducing energy consumption and easing the load on your engine.
Using the recirculate function is especially beneficial in heavy traffic or stop-start driving, when outside air temperatures can make air conditioning less effective. It not only helps cool your car faster but also improves fuel efficiency, potentially saving you money on petrol.
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To activate this feature, look for a button usually marked with a car symbol and an arrow looping inside it. Press it when your vehicle is already cooled down for best results, and remember to switch back to fresh air circulation periodically to keep the inside air fresh and prevent window fogging.
This simple adjustment can make a big difference to your comfort and wallet during this sweltering heatwave. Next time the mercury rises, don’t forget to use the recirculate button—it’s an easy way to beat the heat while being fuel-smart.