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Cases that you should turn off the air conditioner while driving

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Turning off the air conditioner when going through floodplains or turning off the air conditioner before going up a hill are useful tips that few drivers will notice. Car air conditioning is one of the most important equipment in a car, making a big impact on the user experience. Many people believe that the air conditioner is just a comfort device, it does not affect the vehicle’s durability too much. However, in fact, the wrong use of the air conditioner can affect the health of both you and your baby. Below, we will list cases in which you should turn off your car’s air-conditioner to avoid damaging your car.

1. Turn off the air conditioner before turning off the car engine

Cases that you should turn off the air conditioner while driving

One of the most commonly heard advice is to turn off the car air conditioner before turning off the engine, the reason is so that when the engine is started, the car will not have to “carry” more air conditioning, thereby reducing consumption. fuel and battery power.

In fact, turning the air conditioner on or off does not affect the car’s hardware much, as the ECU of most models automatically turns off the support systems to focus the engine power when starting. moving. You can verify this for yourself by igniting the car. Because even though the power switch is still on, but details such as lights and radio will automatically disconnect for a few seconds when the power is turned on, in this case, the air conditioner is similar.

However, it is still recommended to turn off the air conditioner before stopping the car, but not for the good sake of the engine, but for yourself. Specifically, turning off the air conditioner before turning off the car engine a few times will help the air in the car to be closer to the outdoor temperature, helping you not get heat shock when opening the car door. So, you should turn off the air conditioner about 1-2 minutes before the end of the trip, and at the same time run the fan to dry the air inlet, avoiding moisture condensation causing odor.

2. Turn off the air conditioner before entering flooded road

Cases that you should turn off the air conditioner while driving

The second advice is to turn off the air conditioner before driving across flooded roads. Specifically, you should turn off the air conditioner and lower your glasses. The reason is that the air conditioner always has a ventilation fan to get the air from the outside first. However, if the flooded section is too high, the ventilation fan will turn into a pump that sucks water into the engine, and can even suck garbage in, causing the engine to overload.

In addition, turning off the air conditioner also helps to reduce the burden on the car struggling against the water force of the flooding section. Be aware that a vehicle passing through a flood has a very high level of inertia and needs to run at high power.

3. Turn off the air conditioner when climbing a hill with an old vehicle

Cases that you should turn off the air conditioner while driving
Cases that you should turn off the air conditioner while driving

If your car is too old, too old or simply the engine is small and weak, you should turn off the air conditioner before climbing a steep hill. The reason is to reduce the load on the car, because running downhill takes a lot of energy, but you should also pay attention that you should not open the windows when going uphill, because many steep areas with fog will be very easy. Glass water is collected when opening the door, resulting in reduced driver visibility.

The process of turning off the air conditioner running on the slope is as follows: leave the D number when going uphill, in case the slope is 10% high, switch to 2 or L, turn off the air conditioner. If going downhill, run L or 2, turn on the air conditioner with AC. When braking, do not use the brake pad because it can cause heat and rapid wear of the brake. In the case of the road with many mountain passes, you should rest, not try to go all the way.

4. Turn off the air conditioner when the car is about to run out of gas

Cases that you should turn off the air conditioner while driving
Cases that you should turn off the air conditioner while driving

Once your car is about to run out of gas, you should offload anything you can, including the air conditioner. In fact, turning off the air conditioner also helps you avoid wasting gas and also prevents the car from running water when parked.

Note that when the air conditioner is turned off, keep the fan still to make the air in the car well enough. In fact, even if you press the clutch switch to turn off the A / C pump, the car will still cool for a few more minutes because the Freon pressure on the indoor unit (evaporator) has not returned to balance.

For manual air conditioning, you should turn off the air conditioner in more cases, for example, climbing a high slope, driving in an area with thin air, old machine weak, dirty gasoline, open radiator water tank cap, filter The wind is so dirty …

Be aware that details such as the fan and the clutch of the air-conditioning pump also consume a lot of electricity, so you can turn off the air conditioner to burn the battery completely, causing the car to stall. This is the experience of using a car that is essential if you live in a congested area, often have to run short distances at low RPMs, and get stuck causing the car to move only for many hours. It is known that if there is a traffic jam for too long, the alternator generator in the vehicle may not generate high enough voltage to recharge the battery.

5. Do not turn on the air conditioner when the car is not started

For Vietnam’s “half-baked” weather, many people have a habit of turning on the air-conditioner, even when the car has not started. However, you did not know that turning on the air conditioner before starting the engine will cause the battery to struggle to run the fan. If this is maintained, the battery life will not be high due to frequent sudden loads. So, you should pay attention not to turn on the air conditioner before starting the engine and remember to turn off the air conditioner before getting off the car.

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