Hi, Welcome to the FF.
If they are original HID lamps fitted during manufacture of the car, then they are legal. If they are after market ones, then they are probably not legal. HID headlamps must have an automatic levelling system, and a cleaning system for the headlamp lenses to be legal.
You can tell if they are original Fiat HID headlamps because there will be an aluminium ECU attached to the back of each headlamp. The car will also be fitted with headlamp washer jets on the bumper, and the MODE switch panel at the end of the dashboard will not have the up and down beam adjuster switches. The switches will be blank as in the picture below. To operate the automatic levelling system, there will be 2 sensors, one on the rear axle crossmember and one on the front right suspension wishbone.
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