Automatic air conditioning pushbutton control module position/function · gf8340p2000b · Mercedes-Benz WIS

GF83.40-P-2000B

Automatic air conditioning pushbutton control module position/function

11.12.97

MODEL 202 up to 31.8.95 with CODE (581a) Air conditioning (Automatic)

Automatic air conditioning pushbutton control module position/function

P83.40-2020-11

 Automatic pushbutton

 Recirculated air pushbutton

 Defrost pushbutton

 EC pushbutton

 Rest pushbutton

 ON/OFF pushbutton

 Warm temperature pushbutton

 Cold temperature pushbutton

 Air distribution to windshield and middle level pushbutton

 Air distribution to middle level pushbutton

 Air distribution to windshield, middle level and footwell pushbutton

 Air distribution to middle level and footwell pushbutton

 Blower pushbutton

N22 Air conditioning (Automatic) (Automatic) A / C pushbutton control module

Function

The control and operating module (N22) permits performance of adjustments required by the driver, such as:

 Automatic air distribution and blower speed by pressing the pushbutton 

 Passenger compartment temperature selection by pressing the warm/cold pushbuttons  , 

 Manual air quantity by pressing the pushbutton or blower levels (2 to 4)

 Manual air distribution by pressing the pushbuttons , , and 

 Recirculated air by pressing the pushbutton 

 Activation of residual engine heat recirculation, with ignition off, by pressing the

pushbutton

 Switching off cooling by pressing the pushbutton 

 Defrosting function by pressing the pushbutton 

 Shutting off the whole system by pressing the pushbutton 

The driver will be shown these adjustments by the diodes integrated into the pushbuttons.

Furthermore the electronics integrated into the control and operating (N22) module take over regulation and control of systems, such as:

 comparison of the preselected / actual temperatures and adjustment of the passenger compartment temperature

 automatic switching from fresh air to recirculated air

 automatic air distribution

 automatic blower speed

 actuation of the refrigerant compressor

 actuation of the auxiliary ventilator

The control and operation module (N22) can be diagnosed so that faults arising are stored in a fault memory, which can be read out on-board or with the aid of the Hand-Held Tester.

When changing the control and operating module (N22) a variant coding should be performed with the aid of the Hand-Held Tester.

	Blower pushbutton Location/task/function		GF83.40-P-2144E
	Air distribution pushbutton Location/task/function		GF83.40-P-2159E
	Recirculated air pushbutton Location/task/function		GF83.40-P-2145A
	EC pushbutton Location/task/function		GF83.40-P-2146E
	Automatic pushbutton Location/task/function		GF83.40-P-2147E
	Rest pushbutton Location/task/function		GF83.40-P-2148A
	Warm temperature pushbutton Location/task/function		GF83.40-P-2160A
	Cold temperature pushbutton Location/task/function		GF83.40-P-2161A
	Defrost pushbutton Location/task/function		GF83.40-P-2139A
	ON/OFF pushbutton Location/task/function		GF83.40-P-2140E
	Display Location/task/function		GF83.40-P-2150A

Referenced documents

gf8340p2139a Defroster button, location/purpose/function
gf8340p2140e ON/OFF button, location/purpose/function
gf8340p2144e Blower pushbutton, location/purpose/function
gf8340p2145a Recirculating air pushbutton, position/task/function
gf8340p2146e EC button, location / task / function
gf8340p2147e Auto pushbutton, location/purpose/function
gf8340p2148a REST pushbutton, location/purpose/function
gf8340p2150a Display, location/purpose/function
gf8340p2159e Air distribution pushbutton position/task/function
gf8340p2160a Warm temperature pushbutton, location/purpose/function
gf8340p2161a Cold temperature pushbutton, location/purpose/function