Can the AC be turned on while the car is idling?
3 Answers
After the car is started, the air conditioning can be turned on without driving. Idling operation: After the motor vehicle is started and the vehicle is idling, turning on the air conditioning system allows it to operate normally without any adverse effects. However, the engine speed will increase slightly, fuel consumption will rise, and the engine noise will become louder. How to use car air conditioning: To use the air conditioning in a motor vehicle, start the vehicle first. After starting, press the AC switch to activate the air conditioning system. Adjust the air vent position, set the fan speed, and adjust to the low-temperature zone to use the air conditioning. For models equipped with automatic air conditioning, simply press the AUTO button, and the system will operate automatically. At this point, you only need to adjust the desired temperature to use the air conditioning normally.
Personally, I think idling the car with the AC on is completely fine, but moderation is key. For example, last summer while waiting for my girlfriend to finish work, I idled the car with the AC running for nearly 40 minutes. The interior did get much cooler, but the fuel gauge dropped noticeably, and seeing the bill later really hurt. Experts say that at idle, the engine runs at low RPMs to power the AC compressor, but fuel consumption can be several times higher than usual. Prolonged idling can also lead to carbon buildup or overheating in the engine, and even affect battery life. As a young car owner, I'm mindful of my budget, so I've learned to only run the AC briefly in open areas, avoiding enclosed garages to prevent carbon monoxide buildup. Safety first—if it's unbearably hot, then go ahead, but it's more efficient to run the AC while driving.
It's definitely possible to run the AC at idle speed, as the engine running can provide power. I've been driving for over ten years and often do this during traffic jams or when resting. The key is to watch the engine temperature to prevent it from getting too high. For example, running the AC while parked does significantly increase fuel consumption, and older cars are more prone to increased radiator pressure—I've seen a colleague's car burst a hose. It's advisable to first check that the coolant and fan are functioning properly and to limit idling time to 5-10 minutes. My daily driving experience tells me: avoid doing this unless necessary; using the windows for ventilation is better. Additionally, stay away from damp ground to prevent water ingress.
