Black Smoke, feels like a blockage - Mercedes-Benz Forum

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post #1 of 1 (permalink) Old 11-17-2014, 07:40 AM Thread Starter
BenzWorld Newbie
Date registered: Nov 2014
Vehicle: 2001 C270 CDI Elegance Auto
Location: UK
Posts: 2
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Quoted: 1 Post(s)
(Thread Starter)
Black Smoke, feels like a blockage

I have a 2001 C270CDI it has started periodically spewing out dense black smoke when you accelerate hard. It also kind of judders like there is a blockage and the fuel cant get through. Once you get to 70 mph on the motorway it runs fine. I have replaced the Air filter and the fuel filter and it is still the same. someone suggested it could be the O2 sensor, could this be the problem? Please help - i'm desperate and this id driving me mad! Kind Regards
markmccabe is offline  
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