Controls and features -> Temperature gauge for your BMW 3 Series 1997-2006

Everything under control  
80 Odometer  
Tachometer  
Temperature gauge  
1 Odometer  
Variable pre-warning zone  
The general operating temperature lies  
between 1757/806 and 2507/  
1206. During high-performance driv-  
ing, do not exceed a maximum value of  
3007/1506.  
2 Trip odometer  
The yellow pre-warning zone displays  
current permissible engine speeds,  
depending on the engine temperature.  
As the engine temperature climbs,  
some of the sectors for this pre-warning  
zones will go out one after the other.  
Odometer  
You can activate the displays shown in  
the illustration with the ignition key in  
position 0 by pressing the left button,  
see arrow, in the instrument cluster.  
Avoid engine speeds in the early warn-  
ing zone if possible.  
Trip odometer  
Never allow the engine to operate with  
the needle in the red overspeed zone of  
the gauge.  
To reset the trip odometer to zero,  
press the left button – see arrow – with  
the ignition key in position 1 or higher.  
To protect the engine, the fuel supply is  
interrupted when you approach this  
sector.