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2008 Mercedes-Benz S550 4MATIC Question: changing spark plugs



robert glaser, Fredonia, NY, May 14, 2010, 11:51

Would it be harmful to put light coat of silicone paste on spark plug boot?????

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  • Answer #1

    May 14, 2010, 12:58

    You can apply some di-electric grease to the inside of the spark plug boots to prevent difficulty in separating the plug wires from the plugs and its available at the auto parts store

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