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Should You Turn Off the Air Conditioning Before Turning Off the Engine?

1 Answers

DeEdward

07/30/25 2:52am

It is necessary to turn off the air conditioning before turning off the engine because the air conditioning relies on the car's battery to operate. If you frequently turn off the engine without first turning off the air conditioning, it will not only damage the battery's lifespan but also affect the engine's efficiency and negatively impact the air quality inside the car and the functionality of the car navigation system. Below are some precautions for using the car's air conditioning: 1. Turn off the air conditioning in advance: It is best to turn off the A/C button one or two minutes before parking and turning off the engine. This allows the blower to dry the moisture in the air vents and pipes, preventing bacterial growth and reducing odors. 2. Turn off the engine after turning off the air conditioning: If you turn off the engine without turning off the air conditioning, the engine will start with the air conditioning load the next time the vehicle is started. Therefore, the best practice is to wait two or three minutes after starting the vehicle, allowing the engine to be fully lubricated, before using the air conditioning.

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