Coat hanger wire works great as the "special tool" along with an 3m allen wrench, much faster than taking the fan off! Wire goes between the two ridges on the bearing and into a hole in the back of the clutch.

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!