Heating...AC on ?
 

Hi

when its cold outside and you want to heaten your car,do you use the Airconditioning or is it better to turn the AC off ??

djtcc

I left it on. The automatic climate control will cycle the AC on and off as needed to maintain the desired temperature.

Depends on the humidity.

If it is cold, and wet, I leave the air conditioner one all year. Windows clear faster as the A/C functions as a dehumidifier.

If it is dry (ie in the far north) and cold, I turn the A/C off, but make sure to exercise it for 10 minutes every month to prevent the compressor seals drying out. That can cause a failure of the compressor ($$$).