I replaced the hydraulic line in my 240 and it bled no problem. When I pulled the engine and transmission I separated the clutch line where the hard line from inside of the car and the line that runs over the tranny connect.

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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver

1982 300SD - 232K miles - Wife's Daily Driver

1986 560SL - Wife's red speed machine