My W211 has #5 cylinder oil soaked plug and looking nasty from the borescope pics. Blowing grey smoke out of the exhaust and using a quart every 500 miles.
2009 4matic wagon with 142k, and body in good shape.
I'm not sure what to do as "smokey" is now missing on #5 and cel won't clear. Any thoughts out there? Does this sound like a recall item?