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Beep and then A/C Blows Hot

800 views 2 replies 3 participants last post by  dmax 
#1 ·
Hey guys.

I have a 2004 330ci auto with 120K miles on it. Just recently when driving the car a beep will sound and the outside temp will flash and go to 0°F and start climbing back, but when that happens my A/C starts to blow hot air even tho i have it set at 72°F auto all the time. After about 5 mins the A/c will then begin to blow cold. This occurs about once a week and lately the temps outside have been in the mid 90's

My understanding was that the outside temp and cabin temp are independent of each other, but could it be the car is thinking its 0°F outside and cranking up the heater thinking the cabin temp is the same?

Any thoughts on this and how to fix it?
 
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