Does idling with the AC on harm a car?

[Eddie]

Idling with the AC on does not harm the car. Here are the specific details about idling with the AC on: 1. Impact of idling with the AC on: Idling with the AC on may affect your health, and in severe cases, it can be life-threatening. When a car idles with the AC on in a relatively enclosed space, it can draw exhaust fumes into the cabin, leading to carbon monoxide poisoning. The biggest impact is on fuel consumption, followed by wastage. When driving with the AC on, the power consumed by the AC only accounts for a very small part of the engine's idle energy. 2. Impact on the engine: The engine not only drives the AC compressor but also needs to maintain the normal operation of the steering and brake booster pumps, which means it is wasting power. 3. Fuel consumption and engine displacement: According to relevant tests, for a typical family car, idling with the AC on for about an hour consumes approximately 1-2 liters of fuel.