W140 S350 Fan Clutch Question??

[R100RSCA]

Hi,

I bought a W140 S350 diesel almost a year ago without knowing it has NO radiator fan and clutch at all. Please don't ask me why because I already feel so dumb now.

So I ordered new plastic radiator fan (part# A6062000023) and clutch (A6062000022). To my understanding, the new plastic fan should be a direct replacement of metal fan (A1162052406), is it true?

The problem I am having is, when I put the clutch and fan onto the water pump pulley, when everything is tighten up, the fan blade will hit the hook on the front of the engine. Am I missing anything in the middle? My estimate is I need about 3/8 or 1/2 inch to clear it. I have checked startekinfo.com. From the pictures there, it is how it is. But the gassers, it has few other pieces. Can anyone who happen to have a diesel OM603 tell me what is going on? Unless the way I installed the fan or clutch in the wrong direction?

Any help is greatly appreciated!