I took apart my R180 hub yesterday after about 130km of which 85 in very bad weather and mud. Everything looks OK. The tips of the ratchets look a little bit worn, but since they are razor sharp this might be normal.
I packed the ratchet with grease, assembled everything and... the ratchet would no longer engage... I took it apart again, added some oil to the grease and that solved the problem.
The ratchet is now A LOT more quiet.
Edit: after 1 ride it is LOUD again...