Every 20.000 km or once per year. It is recommended to change the oil every 10.000 km
With the ignition on hold down the mileage reste button until you get 4 dashes or use the socket under the ash tray to connect the vag reset tool.
1) Ensure ignition key is turned off. 2) press and hold the odometer reset button whilst turning the ignition switch to the on position. 3) Keep the odometer reset button pressed for 10 seconds...
Only a FIAT dealer can do this.
User manual (and my local FIAT garage) say this can only be done by a FIAT dealer
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