Center dial between face vents 1990 525i

[Element816]

So my center fresh air vent temperature dial seems to have an electrical pigtail in the back of it, and its all plugged in, however I've noticed that no matter how much I turn the knob to red or blue it blows the same amount of cool air, which would be fine normally fo winter in Texas however it's been like 45 degrees when I wake up and a fresh blast of cold air is not my cup of tea that early in the morning, I do have heat coming out of the floor and the front window defroster. Any ideas?

Problem does continue after the car has warmed up too

[Element816]

Found out that on the passenger side behind all the trim pieces there's a servo that opens and closes the flap between hot and cold, seems like in a lot of these models there is a little plastic piece that brakes over time, the servo still works I just had to fit it back up there. DIY to come, unless there's already one I missed.

[shogun]

this one? Joe made some, pics here
http://www.bimmernut.com/forum/5-series-bmw/41477-actuator-arms-anyone-interested.html

[Element816]

Negative, least not for the '90 525i

[projekt h]

I'd love for it to be 45 degrees in the morning lol. Once I finish school, I think im moving somewhere south