As elekie says really. I'd get it done. If it fails you'd be looking at a minimum cost of £1000, and probably more like £2000.

EDIT : just had a look on previous threads. Someone asked a similar question on these a 3.5 years ago, the cost for cambelt and waterpump was £385 - though that price was at a FIAT dealer, so hopefully an independent would be a bit cheaper.

It would certainly be advisable to get the waterpump done at the same time as the cambelt.

Edited by RobJP on 05/04/2016 at 22:56

I would expect it to be upwards of £300 for the cambelt, tensioner and waterpump changing

Agreed. Pointless just changing the belt as failure of the tension pulley or water pump is what causes belts to break up.

If I was an old widow dreading big bills I would be balancing the cost of doing this against the risk of a broken engine. Of all the thousands of Fiats around probably only a small percentage would fail if you left the belt for longer. How sensitive are you to new strange engine noises? Failing pulleys and pumps usually give warning signs - whining or leaking. I am known on this site for never changing cambelts unless something else has failed, like a water pump - and not even then; I once changed a whining tension pulley at around 140,000m but left the cambelt, still going strong at 10yrs and 240,000m. But that was a German, not Italian, car.