I need to replace the clutch and flywheel on my 2002 st170.

Does it have a 230mm diameter clutch/flywheel or 240mm Diameter?

Looks like you can buy them quite cheaply on eurocarparts, LUK parts. They display both sizes and after speaking to them, they have no idea which one fits.

Can anyone 100% definitely say which size will fit the 2002 model.