Yes jp,
That's correct.
MB offers a special running-in filter for the 1st 500 km after rebuilt: parts no. 000 184 4225.
It's a bit more expensive than the regular 000 180 0009 standard filter (kit). The mesh is finer.
It's up to you to use it or not, most owners don't do it.
I am gonna do it for my 127.
Best,
Achim