Roland,
If you look at Bookie's site regarding FW190's in Sweden you will find pictures of them both.
http://fw190.hobbyvista.com/sweden.htm
As you can see they are marked C+I and M+I which I think is the reason for the confusion.
In Widfeldts reworked book "Tyska nödlandare 1939-1935" from 2007 Bo is not saying what version they were, he states wnr 931484 (M+I) and 584205 (C+I) which I think is wrong, if you look at the pictures, C+I is wnr 931484
Best Regards
Peter