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Old 11-30-2005, 03:13 PM
Ron in SC's Avatar
Ron in SC Ron in SC is offline
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Join Date: Aug 2003
Location: Charleston, SC
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Use only the a plug recommended by Merecedes.

Read the following thread for my reasons for this. I had a spark plug failure in an 1987 420SEL some time ago.

http://www.peachparts.com/shopforum/showthread.php?t=94360&highlight=plugs
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