1992 Mercedes Benz 300ce Black exhausst smoke

Tiny
ROY H. BROWN
  • MEMBER
  • 1992 MERCEDES BENZ 300CE
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 106,000 MILES
I just bought this car 2 weeks ago. I drove it to Atllanta from Florida and it drove fine, but kept noticing black smoke from the exhaust from the tailpipe. I put a Chevron additive into the tank and since it has been sputtering and hard starting. What would appear to be the problem? Is is the type of gasoline that was being put in?
Saturday, August 28th, 2010 AT 6:15 PM

2 Replies

Tiny
ROY H. BROWN
  • MEMBER
  • 2 POSTS
Engine Mechanical problem
1992 Mercedes Benz 300ce 6 cyl Two Wheel Drive Automatic 106000 miles

I just bought this car 2 weeks ago. I drove it to Atllanta from Florida and it drove fine, but kept noticing black smoke from the exhaust from the tailpipe. I put a Chevron additive into the tank and since it has been sputtering and hard starting. What would appear to be the problem? Is is the type of gasoline that was being put in?
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Saturday, August 28th, 2010 AT 6:22 PM
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there,

Thank you for the donation,

Black smoke is a sign of a very rich mixture, start with pulling the plugs and looking for a black wet or sooty spark plug, this will indicate a miss firing cylinder that may be the problem, star there.

Mark (mhpautos)
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Saturday, August 28th, 2010 AT 8:06 PM

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