Ok guys .. had the same problem but fixed it.Go to the PMDG setup in FMC menu and i think its under equipment...search for the autoland option "FAIL OP" and FAIL PASS"You have to change it from "Fail Pass" to "FAIL OP". After that you should got Full CAT3 Autoland (LAND 3 with Flare and Rollout) edit ..iam not sure about that but CAT3 Autolanding not work on every Runway with ILS. I just approaching Runway 05 in EDDH and it seems ILS for this Runway not allow CAT3 Landings. AP2 wont engage on this Approach And why some Runways (EDDF 25L) called 25C in the FMC, what means the "C"?

thanks that's it !!! regards,Bernard