Does Sleeping in a Car with the AC On Damage the Vehicle?

[VanLucille]

Sleeping in a car with the AC on while parked can damage the vehicle. Running the AC while the car is idling increases fuel consumption and leads to engine carbon buildup. Here are the details: 1. Fuel Consumption: It definitely consumes more fuel. It is also advised not to keep the AC on for extended periods while idling. If the AC is left on for too long with the air circulation set to internal mode, the air inside the car will gradually become polluted and deteriorate, with harmful gases (such as carbon monoxide and nitrogen oxides) increasing, which can pose risks to health and even life. 2. Engine Carbon Buildup: If the engine speed is too low, it may struggle to power the AC, and even if it does, the engine will run unevenly, leading to incomplete combustion and increased carbon deposits. Additionally, idling with the AC on can cause poor system cooling, easily leading to overheating. An overheated engine is highly susceptible to damage. It is best not to keep the AC on for too long while parked.