If it's anything like the M20 or most others then a piece of iron (old bed frame etc.) with some holes drilled should do the trick. I wonder if the fan clutch tool (if you have one) would work? Same idea.

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1988 325is (purchased new) sold
2004 X5 3.0 2005 X3 2.5
2008 X5 3.0 (new to me)