heater problem

[roadkingdoc]

i can regulate the blower on the ac/heat,so i am assuming my fsr (which i replaced a few months ago) is ok. i seems the heat kind of comes and goes. could the temp control unit on the ac/heat control panel be the culprit? thanks roadkingdoc

[Bimmer360]

when you have it set at a certain temp, do you have the auto button ON?

[roadkingdoc]

i have the three knob panel. i dont think there is an auto. is there? thanks roadkingdoc

[Bimmer360]

ahh! 3 knob panel. OIC. Mine is the other type so i am no help. I'm sure members with those types of controls would respond. Thanks!

[roadkingdoc]

thanks for the effort to help. i called an independant bmw service and they suggested i check the antifreeze level. i did and i was about 3/4 gallon low. that fixed the no heat problem. they also said i could be a bad thermostat. now i have to determine if i am losing antifreeze somehow. thanks again