Car runs rich when cold and first started, produces carbon, winter, condensation, blah, blah, blah there's nothing abnormal or wrong with this car. However if you have money to burn, start spending. Quick easy fix, take the hose and attempt to flood the last section of the exhaust, while the car is running. You will flush out a good half cup of carbon residue. In a couple years when you notice the carbon again repeat method



'91 350SD 200,000
'91 350SDL 296,000
'94 SL500 66,000

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jcciem
'94 SL5000 60,000
'91 350SDL 545,000
'91 350SD 197,000
'00 E55 AMG 77,000