smolck, Thanks for the reply.
Let me just mention im an experienced mechanic, but never looked a BMW before, so its all new to me. I just got the car a couple months ago.
I checked the coolant level via the container cap near the radiator that said "do not open hot" The float indicator appeared to show it to be right at the full mark. This is with the car cold. If that offers any insight regarding the coolant...
And I tried to locate the vents but i still dont see them. By temp readout display, do you mean the gauge in the cluster?