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Austria and in other european countries are once again sweltering under a summer heatwave, and for many drivers, the car’s air conditioning system becomes an essential lifeline. But how you switch it on can make a surprising difference — not only for your comfort, but also for your fuel consumption.
A Common Mistake Drivers Make
On extremely hot days, many people jump into their cars, start the engine, and immediately blast the air conditioning at full power. It feels logical — the car is unbearably hot, so maximum cooling seems like the fastest solution. But this habit actually creates several problems.
1. Trapped Heat Forces the AC to Work Harder
A parked car can heat up to more than 60°C when left in direct sunlight. If you switch on the AC at full blast right away, the system must fight against this extreme heat. That means:
- Higher fuel consumption
- More strain on the cooling system
- Slower cooling than expected
The AC simply has to work too hard too quickly.
2. Poor Air Circulation Can Be Unhealthy
When a car interior has been baking in the sun, various materials — plastics, upholstery, adhesives — can release gases into the air. If you immediately close the windows and turn on the AC, you may inhale these substances in concentrated form.
Health experts warn that repeated exposure, especially for frequent drivers, may pose long‑term risks.
The Simple Trick: Ventilate First
To avoid these issues, experts recommend a quick and effective routine:
- Open all doors or windows for a few minutes before turning on the AC.
This allows the built‑up heat to escape naturally. - Start with a moderate cooling level, not the maximum setting.
Once the interior temperature drops, you can gradually increase the intensity if needed.
This approach reduces the workload on the AC, lowers fuel consumption, and improves air quality inside the vehicle.
The Bottom Line
A few minutes of ventilation before switching on your car’s air conditioning can make a noticeable difference. You’ll cool the interior faster, protect your AC system, breathe cleaner air, and save fuel — a win on all fronts during Germany’s scorching summer days.
- source: futurezone.com/picture: Image by Rolf van de Wal from Pixabay
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