Hi i have a 1994 c-280 (202), the air is charged but all im getting is hot air out of my vents all the time. the clutch is kicking in and the lines are cold. please help

I expect that for whatever reason the system is allowing coolant to the heater core. This is how the ACC regulates the a/c temperature.

The problem could be the pushbutton control unit or the valve. I'm not specifically familiar with the 202 car so I cannot get more specific than this.

Good luck,