03 GTI, temp sensor has no faults stored, but the gauge on the dash shows the temperature in between 70 and 90, its always sat on 90 or just a smidge below. I changed the temp sensor at the weekend, still does the same. Car runs fine, heater gets hot, thermostat opens as both pipes get hot, fan cuts in when its supposed to, coolant all fine too and up to VW spec. Any ideas?
TIA