Quote:
Originally Posted by Daytonawim
The first foto, is the air polution sensor, if you select the correct button, the airvent valve will close automatic when the air is dirty. ( thats what understand from the Manuel)
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Here's more technical info that explains what the AUC sensor is detecting...and when it does...it closes the fresh air flaps of the IHKA system:
Sensor for automatic air recirculation control
- The AUC sensor is fitted on the microfilter compartment. The AUC sensor detects the following pollutant emissions from spark-ignition and diesel engines:
- Hydrocarbons (CH )
- carbon monoxide (CO)
- Nitrogen oxides (nitrogen monoxide NO, nitrogen dioxide NO2)
The junction box supplies the AUC sensor with voltage. The junction box electronics evaluate the data of the AUC sensor. The junction box electronics unit transmits relevant data to the IHKA control panel (via the K‐CAN).