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Date registered: May 2004
Vehicle: 1985 190E2.6(junked), 1995c220, 2000CLK430(totaled), 2001C240, 2009 CLS
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bad rings, head gasket, valve guides/seals, If the smoke smells sweet, it's antifreeze, could be warped/cracked head or head gasket. If it smells oily, guides/seals or rings, or even a vac leak on intake manifold and it's sucking oil from a really, really leaky valve cover gskt, but usually it's the other problems. Take off coolant cap and see if you see bubbles in coolant (while engine running)? See if oil looks like a milkshake?