All you need to do is unbolt the 4 nuts, disconnect 1 plastic tube going to the crankshaft, and remove it. The picture shown looks like a newer version of the original one because even when I tried to order the OE one I have, that picture came up. Can you post a picture of what yours looks like? It literally is like a 10 minute jobif we are both talking about the same thing.

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1990 190E 3.0L