Hi.
My 2013 4x4 ta has a drip from the front ptu drain plug. Has anyone ever changed the oil on this?. Lying underneath I can't see the filler plug. The drain is at the back passenger side bottom of the unit, allen key insert. It only takes 390ml so can't be that high up. Any pointers to where the filler is and how awkward to access.
Thanks

IS it separate to the gearbox oil? (On the older 169 4x4, the gear oil also filled the front diff)

(Edit: guess it is - listed as a separate (and different!) fluid in the handbook)

Is it filled via the 'vent' on the top? (Item 9 in this parts diagram?). Part 14 is I think the drain plug...
https://www.fiatdalys.lt/en/catalog...70/ZFA31200003210975/0/0/0/front-axle-and-pto

(bigger view: https://www.fiatdalys.lt/diagrams/52/524901163D3B43E53BA521336FB42171.png)

The output to the prop shaft is at the 'bottom' of the drawing, so the front of the car is at the top.