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Old 03-01-2002, 10:41 PM
jackroe
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500SL really rough idle

I have a 1992 500SL 112,500 miles. All of a sudden my car has a bone rattling very rough idle when the engine is cold. It evens out somewhat after the engine has warmed up but still idles unevenly. It seems to run fine when not idling. Any thoughts? Thanks
JR
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