i have a 00 bmw n no manual,740il trying to figure out buttons,?

[garysbad123]

on vent i get out side air but if i put it on defrost it blows hot air,i set temp at 80 and still only get heat from defrost............any ideals will help

 

[Kash]

Vent its to vent the air from outside into the car. Defrost is the DEFROST cold windows so if you set it to 80 the defrost will blow at 80 degrees.If you want cool air make sure the snowflake button is lit up and set the temp lower to like 68 degress. That will give you cold air. If you do not want cold air then turn the snow flake button off