BenzWorld Junior Member
Date registered: Oct 2006
Mentioned: 0 Post(s)
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MarcusF, under exaust tube, when I left car working few minutes, I can still see black powder (not so much as before), it smells like coal, burned fuel....
Does it seem that the coating material is damaged (according to your explanation) and has to be (the part) replaced?
What's your suggestion?
Would the high speed, 100 - 110 mph, driving 20-30 mins at the highway clean the system or make more problems? Do I have any reason to be afraid to drive fast and biiger distances?