Air Conditioning problem
2001 Audi A4 4 cyl All Wheel Drive Automatic 85000 miles
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My wifes A4 dash tempereature sensor keep saying the outside temp is like -20 when its about 60 or 70 outside. She then cannot get the AC to work at all as only hot air will come out. We took it to good ol Audi USA dealer and they fixed the front radiator located temp. sensor which fixed nothing for the tune of $150 dollars. I then did some research and found that there is a second temp sensor which is the more likely one to fix the prob, so i bought the part, but now i cannot locate it. Can anyone tell me specifically where this part is located? I know it is somewhere behind the glove box and under the wind screen. Is this something i can fix myself or do i have to take it back to a mechanic?