could always wrap saran wrap around it and poke a hole in it with a grease gun...friend of mine did that with his 83' 240D and limped it home driving 500 miles.....then he kept driving it for another 1000 before it started clicking again..

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1992 300TE 4matic - Just obtained 12/22/06
1983 300D - SOLD
1997 Dodge 2500 - CTD 400+HP, 1100ft/lbs torque