The FSM procedure to remove the R4 says first step is to remove the clutch, then the belt, then the clamps for the hoses then the R4 mounting hardware, the manifold pipe/hoses are to be left in place. I wish it gives a reason.

1. Why does the clutch have to be removed first? Is it a clearance issue?

2. Why is the manifold left on? Is is to prevent oil from spilling? It would seem easier to remove the R4 if the unwieldy manifold is removed and out of the way first.

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85 300D turbo pristine w 157k when purchased 167,870 July 2025
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked