Idler arm bushings! $20 kit, about an hour's work; found them on my 300SEL, clunk in front end, found the bushings shot! If you can't wiggle the bolt out (throw it away any way) cut the head off it and install upside down so you don't have to remove the entire exhaust from the manifold back! Don't even have to remove the tie rod joint thingies.

I've learned my lesson about betting, but I'll bet yours are shot too!

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1991 300 SEL
218,000 Km

"Xsbank's rules of mechanical intervention: Always go for the easiest solution first; 90% of what ails a gasoline engine is ignition; After that its all a WAG."