Two cases where you should turn off the air conditioner when driving a car

Case 1:Many drivers think that they should turn off the air conditioner before turning off the engine, because it affects the engine because it has to "carry" the air conditioner when starting up, wasting fuel and power from the battery.

In fact, turning the air conditioner on or off does not affect the car's engine. Because most cars today, when starting, the ECU will automatically adjust to turn off all other support systems, focusing all fuel and electricity on the engine. Users can notice this when turning on the power switch, the lights, radio... are still running, but when starting the engine, these systems will automatically turn off for a few seconds. The air conditioner is no exception.

But this does not mean that turning off the air conditioner before stopping the car is not advisable, on the contrary: it is highly recommended. A few minutes before the end of the journey, the driver should turn off the air conditioner to help the body gradually get used to the outside temperature, avoiding heat shock.

In addition, turning off the air conditioner before stopping to run the fan will help dry the air vents, avoiding stagnant humid air that causes mold, a cause of unpleasant odors every time you enter the car.

Second case, Before entering a flooded road, turn off the air conditioner and roll down the windows. Because the air conditioner always has a ventilation fan to bring in fresh air from the outside. If the flooded area is too high, the ventilation fan will turn into a pump to suck water into the engine. The fan blades can get caught in debris, causing them to break, causing the engine to overheat.

Another reason is that when driving through flooded water, the car will be sluggish, so the engine needs more power to pull. In case the car has low power, it may not be enough.

Ngoc Diep