Outside Temperature Display

Outside temperature display
The instrument cluster determines the current outside temperature by way of the outside temperature sensor (NTC resistor). The outside temperature sensor is connected with a separate ground (analog ground) and a sensor line (analog positive) to the instrument cluster electronics ( IKE ). The outside temperature is not displayed in the multi-information display ( MID ), but rather permanently in the instrument cluster. If, while driving, the outside temperature drops below +3 °C, dependent on the coding, the gong warning 2 (T2) is triggered and the displayed value flashes. The display unit ( °C/ °F) is determined in the coding data.

The display change is delayed since heat from the engine and other ambient conditions influence the outside temperature display.

The instrument cluster electronics ( IKE ) transfers the "outside temperature" information via the instrument bus ( I-bus ) and body bus ( K-bus ). In ignition lock position "0", the outside temperature sensor is read by the IKE at time intervals which are within the minute range. For this purpose, the IKE is temporarily activated, provides the information and then switches itself off again.