GF83.10-P-2192FA | Multifunction sensor, component description | 22.2.08 |
MODEL 203.7
as of model year 09 /YoM 08 model refinement package
with CODE (581) Comfort automatic air conditioning
P83.40-4024-04
B31 C-AAC [K-KLA] multifunction sensor
Location
The multifunction sensor is located in the fresh air inlet in the right rear of the engine compartment.
Task
The multifunction sensor registers the following values:
- Ambient temperature
- Air humidity
- The carbon monoxide (CO) and nitrogen oxide (NOx) pollutant concentration in the outside air that is drawn in
The multifunction sensor uses the ambient temperature and air humidity to calculate the dew point and transmits this data via the AC bus to the comfort AAC [KLA] control and operating unit (N22/7).
The dew point is needed to regulate the refrigerant compressor (A9).
The multifunction sensor also registers the concentration of CO and NOX pollutants.
The values are read in directly by the control and operating unit via the AC bus. The control and operating unit controls the automatic recirculation according to the read in values.