Automatic air conditioning pushbutton control module position/function - GF83.40-P-2000B
WARNING: This page does not describe the selected car, but rather 42 other vehicles, including the 1999 Mercedes-Benz S600, 1999 Mercedes-Benz S500, 1999 Mercedes-Benz S420, 1999 Mercedes-Benz S320, and 1999 Mercedes-Benz CL600. However, it is still accessible from the selected car via links, so may be relevant.
MODEL 202 up to 31.8.95 with CODE (581a) Air conditioning (Automatic)
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