On my VW, the temp gauge "notches" - that is, it will read dead center even though the thermostat will cycle and actual temp will go up & down somewhat with that normal cycling. VW says their owners don't like seeing the gauge move around... Anyway, wondered for some time if my '04 GV does the same thing - and the answer is yes. Temp varied from 186-204 via Scan Gauge with no change in dash gauge indication. Just a data point for those who are curious!!