Air conditioningBrazil
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184. Air conditioning
Air conditioning helps control the temperature and humidity inside a vehicle and can improve comfort and visibility. In hot weather it cools the passenger compartment, while in damp conditions it can help remove moisture from the air and clear mist from the windows more quickly. Drivers should use the system in a way that keeps the interior comfortable without creating large temperature differences, and the system should be maintained so that it continues to work effectively.
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What does air conditioning do in a car?
Air conditioning cools and dehumidifies the air inside the vehicle, helping improve comfort and reduce moisture on the windows.
Can air conditioning help demist the windscreen?
Yes. Because air conditioning removes moisture from the air, it can help clear condensation from the windscreen and windows more quickly.
Should air conditioning be used in winter?
Yes. Air conditioning can still be useful in winter because it reduces humidity inside the vehicle and can help demist the windows.
Does air conditioning increase fuel or energy consumption?
Yes. Operating the air-conditioning system requires energy and can increase fuel or electricity consumption, although the effect depends on the vehicle, system and conditions.
Should a car's air conditioning be maintained?
Yes. Regular use and maintenance can help keep the system effective. A poorly functioning system may cool less efficiently or fail to remove moisture properly.
Can you drive without air conditioning?
Yes, in many vehicles and countries air conditioning itself is not required. However, the driver must still maintain adequate visibility and safe conditions inside the vehicle.

Traffic rules
Brazil