Question about 2006 Volkswagen Jetta

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2006 VW tdi black smoke while accelerating

Lots of black smoke on my 2006 tdi loss of power until a black of smoke is emitted and then it drives fine. Does it during initial start and even after the car is warm

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  • Anonymous Mar 25, 2014

    Car does not idle evenly on cold start. Does not switch off, but lacks power on take off and driving until warmed up.



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The only sensible way forward is to get a list of fault codes from the onboard diagnostic system and take it from there. You could either go to a VW dealer, or if you are technically minded you could buy a £15 interface cable, download some free "VAG diagnostic software" and run it on a portable computer.
There are lots of possible reasons for the problem and guessing will not really help. If these suggestions turn out to be sound, please give my reply a "Fixya!"rating, If they do not, please hold off rating and add a comment with more details so I can try to help you further. Cheers, D

Posted on Dec 02, 2008

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I have the same problem. Do you have a DSG transmission? There are complaints on VW clubs about this problem. It seemed like an engine control issue but it is actually a confused transmission in my case. It seems to have trouble engaging and must send a signal to the engine to kill power. Recalibrating the transmission with VAG-COM made the problem go from a 3x daily issue to a weekly one. I have read that the DSG is very sensitive to oil levels. I am going to set mine properly and see if it helps. The calibration/adaptation only takes 10 minutes with VAG-COM

Posted on Apr 04, 2009


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