AIR control module, function - GF83.40-P-2117-01A
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.
Function
The pushbutton control module controls the AIR control module (N65/1) with a minimum of 3 mA and max. 10 mA.
The AIR control module (N65/1) compares these values with stored values and switches on the auxiliary fan (M4) under the following conditions:
- Outdoor temperature = >5 °C
- Refrigerant pressure = 13 bar
- Coolant temperature = 103 °C
- Limp-home mode (e.g. refrigerant pressure > 20 bar)
The auxiliary fan (M4) is switched off under the following conditions:
- Refrigerant pressure = 12 bar
- Coolant temperature = 100 °C