Hello, I have a 02 Multipla 1.6 elx, the issues is that my temp gague does not show anything while the car is driving, but when I turn off the engine and turn on the ignition I get a temperature disply. I have had the Tharmostat and fan temp sensor replaced.but still the temp gague is not showing correctly, The disply will show full bars and then when I turn on the fan to full power the temp gague drops to zero and displys nothing. Please help as I can't trust the car on long drives.

Hello , i have the same problem. When check the temperature from the OBD data - it is ok.
Problem is - the gauge does not show anything. There is only one temp sensor - and the obd data is working ok . This means the sensor is ok.
Where is the problem?
Any suggestions?