Yes, in fact in most modern cars the AC automatically comes on with the Defroster.
Is the AC condenser in your system blowing cold air?
Ceiling. Cold air fails
The air on the outlet side of the air handler should be approximately 18 degrees colder than the air on the inlet side.
55 degrees to 60 degrees
15-20 degrees cooler than the air returning from the home to the air handler.
In some cars. one belt drives both the alternator and the air conditioning. In other cars, each has its own belt. Depends on the car. The alternator belt runs whenever the engine is running, the AC belt turns, but is only running under load when the AC compressor is turned on to get cold air.
Your AC system probably needs a recharge. AC units in cars need regular servicing too - about every couple years is adequate.
There should be at least a 12 degree split between the incomming air and the air comming out of the vents.
If it's cold outside do you want cold air blasting when you get in your car?
Simple, you ac does not blow cold air even though you have it turned on and the temperature set to cold.
No, you should not add water to your air conditioner to make it blow cold air. Air conditioners are designed to cool air through a refrigeration cycle, not by using water. However, some evaporative coolers do use water to cool the air, but they operate on a different principle than traditional air conditioning systems. If your AC isn't blowing cold air, it may need maintenance or repairs.