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Home >> Mercedes Benz >> 2009 >> CL550 >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control -- Cl550 -- 216 Chassis >> Basic Knowledge >> Multifunction sensor, component description - GF83.10-P-2192SX

Multifunction sensor, component description - GF83.10-P-2192SX

MODEL 216.3, 221.0 /1 up to Model Year 8 

Shown on model 221.0 

Fig 1: Identifying AAC (KLA) Multifunction Sensor
G07638778Courtesy of MERCEDES-BENZ USA

Location 

The multifunction sensor is located to the right in the engine compartment above the starter battery (G1/4).

Task 

The multifunction sensor registers the following information about the outside air that is drawn in:

Function 

The data of the multifunction sensor are read in by the AAC [KLA] control unit (N22/1) via the AC bus. The AAC [KLA] control unit needs these as a basis for calculating climate control, recirculation air control, and for actuation of the refrigerant compressor (A9).