As it was not a fiat garage they cannot turn it off as they do not have the kit. Dont know why but the warning light and "change oil & filter" message came on at 28,000 miles when the service is not due till 30,000 miles. 28,000 was the old service interval ?.
On another note I was informed by the garage that there was an oil leak from a pipe that leads to the turbo and that it would have to go back to dealers under warranty.
Also just to let you know that there is no alternative but to use the Fiat fuel filter as the one listed by MANN does not fit.