Fresh air inlet sensor vs evaporator sensor in climatronic

Just in case anyone has a similar issue, I figured out the problem. There are 2 sensors inside the car for climate unit. The one that I had that was defective was the G89 or fresh air inlet temp sensor. Part # is 4A0820539A. It is located way up high behind glove box. It throws code 313 when defective. It can be seen under pollen filter.
The one I had first removed was the evaporative sensor. It is part # 1J0907543A. It is located near bottom of ac blower unit. I did not realize this was different from air inlet temp sensor. The way I found out was when I disconnected it, I got a new code 332.
Hope this helps.

I don't know about left hand drive cars, but it should be able to be accessed from under the cabin filter with a little prying. I've reached the electrical connector from behind the dash on a LHD, but it was not easy.

I now think that part #35 in the latter picture is actually called footwell vent temperature sensor G192.

mtrantalainen said:

View attachment 100020

Click to expand...

The evaporator temperature sensor, G263, is actually closer the sensor #23 in this image. However, this image is missing that sensor. As far as I know, its location is near the part #42 on the back wall of the housing.