Originally Posted by
YoitsTmac
It seems the same, yes. The previous unit wouldn't allow AC, then shut down. I reset the entire car and got it back. The next time was very similar, but auto recirculation wasn't working either, then the entire unit became unresponsive. The new unit is off a newer M3. As far as I could tell, all IHKA's are plug n play, but my build date is relatively early at 07/01, so perhaps there are some issues there. This upcoming weekend I will peak in INPA and I do have access to an older IHKA and can swap it to see if this persists. I did swap the AUC sensor with no luck.
So the search continues, with next steps being trying an older IHKA and seeing what INPA says.
I will say this. I have repeatedly had issues with my IHKA randomly rebooting while driving ever since I installed Bluebus and have mentioned it on this forum a few times. When it reboots, it returns to the setting the car turned on with. A big reason I got a newer IHKA unit is because I heard people weren't having the same issue with later year models, and figured this would fix that issue. I normally drive to work with the heater on, but drive home with the system off, but the other day I had the AC on and the system rebooted still. I updated BlueBus again and will be driving home with the climate on to see if this behavior continues and if so, will disconnect Bluebus to see if that's my issue.