S83.57-2500-06
A20 A/C pushbutton control module
A20b34 Passenger compartment temperature sensor
A20s1 Temperature selection knob
A20s2 Knurled blower dial
A20s3 Recirculated air switch
A20s4 Air distribution knob
A20s5 Air conditioning switch
A20s6 Auxiliary heater switch
A20s7 Residual engine heat utilization switch
A20s8 Temperature selection digital switch with display
The air conditioning pushbutton control module (A20) is integrated into the instrument panel.