Can the Air Conditioner Cool Without the Engine Running?

1 Answers
McNora
07/30/25 10:14am
When the car is not started, the air conditioner cannot be used. Here are the relevant details: 1. Working Principle: The air conditioner's compressor is driven by the engine to produce a cooling effect. If you turn on the air conditioner for cooling without starting the engine, it will not cool and will instead accelerate battery consumption. 2. Additional Knowledge: The heating function of a car's air conditioner relies on excess heat from the engine. If the engine is not running, the heating mode will not provide much warmth. However, some models come with a residual heat function that can maintain heating for a short time after the engine is turned off.
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