Does running the AC while parked in summer affect the car?

[DerekMarie]

Running the AC while parked in summer has little impact on the car. At most, it consumes a bit more fuel, but turning off the engine with the AC still running can harm the engine. Running the AC while parked increases engine load: If the owner turns off the engine without turning off the AC, although the AC stops working after the engine is off, the next time the car is started, the AC will default to its last used state and operate simultaneously with the engine. The load from the AC will be added to the engine, and excessive load on the engine can cause strain. Over time, this will inevitably reduce the engine's lifespan. Precautions for car maintenance: It is recommended to turn off the AC before reaching your destination, allowing the AC compressor to not shut off immediately. This protects the compressor and prevents damage to the engine.