Outdoor temperature
The current outside temperature will be shown in the SID display if the TEMP function is selected or the temperature warning function is activated. The outside temperature will then be shown automatically. Information on the outside temperature comes from the sensor in the front spoiler.
A temperature warning function is built into SID and works as follows:
If the temperature falls from a higher temperature to +3°C (37°F) or rises from a lower temperature to - 3°C (26°F), the outside temperature is automatically shown on the display irrespective of which display SID is set to.
This display remains until another function is selected.
To avoid the effect of radiant heat, the temperature sensor reading is updated differently depending on whether the outdoor temperature is rising or falling and it is speed-dependent.
The reading is updated as follows:
- +1°C (1.8°F) every 6 minutes at speeds below 30 km/h.
- +1°C (1.8°F) every 30 seconds at speeds above 30 km/h.
- -1°C (1.8°F) every 2.5 seconds.
If the engine is switched off, the current outside temperature value is shown in SID. SID also calculates the time for which the engine has been switched off. When the ignition is turned on again, SID shows the stored outside temperature value from ignition OFF if the time for which the engine has been switched off is:
- less than 12 minutes.
If the engine has been turned off for more than 12 minutes, the current outside temperature reading from the sensor is shown.
Information on the outdoor temperature is sent as bus information, unit °C/°F (-40 to +50°C), (-40 to 122°F).