You have all been most helpful. I am now searching eBay for a 'Certified DIN carrot'. Friend of mine prefers using a leather glove and sticking his finger into the blade. I prefer changing suspect parts until the problem goes away. But I can't see well enough to man a wrench anymore (is that sexist?).

Again, thanks all, and thanks Mr. MB Forum for being here.

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1993 MB190e 104k