Please see:
https://www.fiatforum.com/tech-talk/439319-fiats-4x2-traction-plus-500l-500x.html?p=4175196
and follow up there to reduce/avoid cross posting.
https://www.fiatforum.com/tech-talk/439319-fiats-4x2-traction-plus-500l-500x.html?p=4175196
and follow up there to reduce/avoid cross posting.