Holy Smoke on my 05 CDI
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Newbie
Joined: Aug 2009
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E320 CDI
Holy Smoke on my 05 CDI
My 05 CDI (Diesel) shows 220000 miles on the dash and is now smoking black smoke. When it was new it would only smoke when you floored it. But now getting smoke while driving. Oil have been changed by the dealer ever 10,000 miles and it does not burn a drop. The Catalitic converter is vibrating. Any idears?
Thanks
Thanks
MBWorld Fanatic!
Joined: May 2006
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From: Virginia
W212 M276 DELA 30 ; W211 M113k, W126 M117, W126 OM617, W211 OM642 ; R107 M117 X2, Sierra 1500 LZ0
My 05 CDI (Diesel) shows 220000 miles on the dash and is now smoking black smoke. When it was new it would only smoke when you floored it. But now getting smoke while driving. Oil have been changed by the dealer ever 10,000 miles and it does not burn a drop. The Catalitic converter is vibrating. Any idears?
Thanks
Thanks
Junior Member
Joined: Jul 2010
Posts: 24
Likes: 1
From: Alexandria, Virginia
2005 E320 CDI
Not unusual at this mileage. By the way congratulations - 220K miles - you are driving a diesel as you are supposed to.
Not burning oil is good. Most likely carbon deposits on valves. Try a few cans of Liqui Moly diesel purge - one can per tank and drive as already suggested for a while at high RPM - this may clean some of the deposits and may help. I don't think you have to worry too much. My 1996 VW Passat TDI also started smoking a little bit more around 200K but full power and no oil consumption whatsoever. Keep driving it - you have at least another 300K left on this engine.
Morde5 - 05 E320 CDI 65K mi.
Not burning oil is good. Most likely carbon deposits on valves. Try a few cans of Liqui Moly diesel purge - one can per tank and drive as already suggested for a while at high RPM - this may clean some of the deposits and may help. I don't think you have to worry too much. My 1996 VW Passat TDI also started smoking a little bit more around 200K but full power and no oil consumption whatsoever. Keep driving it - you have at least another 300K left on this engine.
Morde5 - 05 E320 CDI 65K mi.
Super Member
Joined: Aug 2009
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From: Northern California
09' E350 AMG Sport, 09' C300, 03' Honda S2K
I have also heard that bad Cats can cause the black smoke also and a really bad vibration sound from under the car as you said the cat is vibrating. But yes have it check out asap if you dont feel it is normal or driving right.
