Tempmatic air conditioning pushbutton control module position/function

P83.30-2041-11

Shown on model 202

1 Temperature selection wheels

2 Blower switch

3 Air distribution switch

 Recirculated air pushbutton

 EC push button

 Rest push button (in model 202 up to 08/97 only with Code 450, as of 09/97 serial equipment)

N19/ Tempmatic (Tempmatic A/C) control and operating module

Function

The control and operating module (N19) of the Tempmatic (Tempmatic A/C) permits performance of adjustments required by the driver, such as:

 Temperature by using the temperature selection wheels (1)

 Air quantity by using the blower switch (2)

 Air distribution by using the air distribution switch (3)

 Recirculated air by pressing the recirculated air pushbutton ()

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

( )

 - Switching off cooling by pressing the EC pushbutton ( )

Furthermore the control module integrated into the control and operating (N19) module takes over regulation and control of systems, such as:

 comparison of the preselected / actual temperatures and adjustment of the air output temperature to the air outlets

 automatic switching from fresh air to recirculated air (except A208.4 with open soft top)

 electrical actuation of the refrigerant compressor

 actuation of the auxiliary ventilator

The control and operation module (N19) can be diagnosed so that faults arising are stored in a fault memory, which can be read out with the aid of the HHT.

When changing the control and operating module (N19) a variant coding should be performed with the aid of the Hand-Held Tester or DMNL air conditioning.