Cooper S (R53) L4-1.6L SC (W11) (2004)
Remove oil intake pipe (2).
Installation:
Replace O-ring (3).
Undo crankcase bolts along the lines (2) shown, working from the outside towards the inside.
Undo crankcase bolts along the lines (1) shown, working from the outside towards the inside.
Note:
Use a plastic-headed hammer to release bottom section of crankase.