Skoda Fabia: temp gauge

[stavros]

Evening
If nothing else this car keeps me on my toes!
If I leave the car to tick over then the temp gauge goes up an rests in the middle something like normal but as soon as I set off then the gauge drops down to nothing, warm air is still coming out of the vents. Any ideas?
Thanks

[jaybee]

pretty sure this will be faulty thermostat

[stavros]

thanks

[smarty]

I agree with Jaybee, I have a 51 plate 1.9 sdi and the temp gauge goes all over the place, but not hot. According to the service records (just bought the car) it has a new thermostat. I have my doubts, soon find out as it is on my list now the snow has gone.

[stavros]

Thanks now the snow has gone I have ordered a haynes manual so I will get my tool box ans start on the every growing list of jobs, thermostat, reverse lights have stopped working etc

[smarty]

strangely my car had a reversing lights problem, it was the gearbox sensor. Had it done by a garage (shame on me) as the windscreen washers were also defunct, so both were sorted. £100, saved me lying on the snow!

[sillel55]

I had the same problem. It was just the thermostat had gone. just get a new one (make sure you get a new rubber seal with it. as mine didn't and i had to use the old one) and some coolant top top it back up.

[smarty]

tks, your post was in good time as I have just finished checking my new thermostat in the microwave, and it is OK so, thats the easy bit done !!