2007 Q7 outside temp reading incorrect.

[nh7571]

Recently my Q7 has started giving a false outside temp reading, it's reads correct for the first few seconds after start up then falls to anywhere between -5 and 5 degrees, have tried replacing the temp sensor behind the front bumper but no different, I beleave there is a second sensor used (as a comparison and the lower reading is used) but have no idea where it's situated, my question is has anybody come across this? And any idea where the second sensor is? Thanks.

[Woko]

Hi

I to have this problem, like yourself have replace the front sensor but same problem occurs

I take it your aircon doesn't work either because of the low temp reading