I was using the external circulation with the air conditioner set to 25 degrees, without turning on the AC or automatic mode. Initially, it was blowing hot air, but after driving on the highway, it started blowing cold air. What's going on?

My 2002 Acr30's air conditioning has an issue. When I set the temperature above 18 degrees on either manual or automatic mode, it blows hot air, and there's an engine oil smell coming through. However, if I set it below 18 degrees, it blows cold air and the oil smell disappears. Has anyone else experienced this with their car, and how did you deal with it?

Hello everyone! I need some advice. When I turn on the AC, only the driver's side vents blow cold air, while all the other vents (passenger and rear) blow hot air, and it's really hot. Even when I close the vents, the area around them is still really hot. I went to the dealership, and they said I need to add refrigerant.

When the air conditioning blows cold air for a while and then switches to hot air, and after being turned off for a bit, it works again before reverting to hot air, it's puzzling. Interestingly, this issue doesn't occur on rainy days or when the weather isn't too hot. What could be the cause of this situation?

What's going on when the heater in a Changan Yuexiang is blowing cold air?

The temperature settings for both the driver and passenger sides are the same, but the passenger side is blowing hot air while the driver side is blowing cool air. What's going on, experts?

My 207's automatic air conditioning is having issues. The air only blows towards the windshield and can't be switched to other directions. The display on the panel works, but it doesn't actually change. The AC compressor starts, but it keeps blowing hot air. The temperature adjustment panel shows the settings, but the temperature doesn't change.

Is there anyone else experiencing a buzzing noise when the air conditioner is on fan mode?

The low-pressure pipe is frozen, and the air conditioner isn't blowing cold air. I've already replaced the expansion valve, condenser, compressor, and left servo motor, but it's still not working. Does anyone have a good solution?

The AC in my 2017 Peugeot 308 starts blowing hot air after a while, and the fan near the radiator isn't working. What's causing this problem? Does it require major repairs?

When I turn on the AC in my 2019 Taurus, the rear vents blow hot air. What could be the reason for this? Can anyone help explain?