Air Con Issue - Help Needed

5 mins may be a tad long but I wouldn't worry about it, air needs to flow over the radiator (air con condenser). There is only so much air the fans can pull through when you are stationary, driving massively increases the airflow.

Have the same kind of situation. If the car has been left standing for a day or so, it takes about a kilometer before I get really cold air. If the car is used the following day, cold air is available very quickly, and I live in a warm area. However, if the outside temperature is not much warmer than the inside temperature, the compressor will not be told to pump refrigerant through at high volume. So, in the winter when the outside temperature is low, in order to get cold air, one needs to set the inside temp really low if you want a quick demist. . Make sure that the aircon is fully charged with refrigerant before worrying too much. I have been told that a recharge should be done every two years, just to keep the aircon healthy, and the seals properly lubricated. . I think I may have a 'lazy' sensor, but have no error codes to point at it. Good luck.