A week ago i got a abarth 2.4 selespeed.. love the car but got a slight glitch..i was driving home the other day and noticed that the temp gauge was all the way to hot, no warning lights on though... so i pulled over and turnnd off the engine, the needle is only dropping to half way and not zero..almost like its stuck... turning the key to auxiliary power lots of times seems to get it back to zero eventually, its not done it for a few days but the temp is erratic moving between half way and cold whilst driving. after a brief description to my mechanic he suggested it could be electrical, but id like some opinions from some owners please.

any help would be appreciated thank you.

If you and your mechanic are sure the car's not actually overheating, then it's likely to be the temperture guage needle sticking. This often happens if someone (previous owner perhaps) has dismantled the speedometer cluster.
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Use the MES software to see what the temperature from the sender is saying. That will help determine whether it is the sender or gauge. If the temp from the sender matches the gauge then likely to be sender.

i can confirm that the needle is not falling back to zero on occasions when turning the engine off, causing the gauge to read wrong, how do i fix a sticking needle?

Usually needs a new stepper motor for the needle. The round white part in the picture below.

You need to dismantle the cluster to fit it, and could damage more of the 4 stepper motors while dismantling it.
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All the other needles are working fine though, It was on an advisory when i bought the car as ''dash display needs replacing or specialist repair'' wasn't sure what display it was referring to as the abarth has about 4 displays, clearly they meant the instrument unit. great. seeing as these cant be replaced...

Each of the 4 guages (speedo, RMP, temp and fuel) has it's own stepper motor to drive the needles, so it's possible that just one of them can fail.

The stepper motors are replaceable. They are the same motor for all Stilos. Part number X15-589 or X27-589. eBay search shows several Chinese suppliers. Picture above is of one I replaced.

Alternatively, you could buy a used complete cluster. You would need to get one with a lower mileage that yours, because the mileage can only be adjusted upwards. Mileage adjustment can be done with MES (Multiecuscan)
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