Date registered: May 2007
Vehicle: 2003 Mercedes Benz E500
Location: San Francisco Bay Area
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Quoted: 1 Post(s)
on the potentially blown head gasket. You can have a test run to see if combustion gasses are getting into the cooling system, which is a positive indicator of a blown head gasket.
"Green liquid" on the spark plug is not a good sign.
Also, you state that you cleaned the MAF, which did you clean it with? If you did not use the specially formulated MAF cleaner, you may have done more harm than good.