I'm not following something here. In Arkie's post he says the rod is not attached and the piston will not come back. What makes it come back under normal conditions? I bled the clutch slave on my 307d the way I have always bled clutch slaves. Have someone push the clutch down and hold it down. Open the bleeder on the slave cylinder and let the air out. Close the bleeder and release the clutch pedal. Repeat until all the air is gone.

Can someone give another explanation as to why this will not work on the sedan?

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13