In Reply to: Main vent only blows cold posted by Mike Howard on June 16, 1999 at 11:26:05:
is because blowing hot or warm air into the driver's face leads to driver fatigue.
If you don't want cool air blowing on you, simply push the middle ventilation lever all the way to the left.
I actually really like the way the system works in the winter. Heat from the upper and lower vents warm the car without blowing directly on you. You can then use the middle vent to let a little cool air blow towards your face to keep you alert and comfortable. I think its really nice because my wife usually has the heat cranked too high for my liking, and I can cool myself off with cool air from the center vents directed only at me.
: My main vent only blows cold air, even when I have the heat cranked all the way up. Hot air only comes out of the defrost and floor vents. Has anyone experienced this??
: '87 528e