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Hi, my name is***** your mechanic automotive expert, and I will be happy to assist you today. In some cases, I may need more information to assist better. I apologize for any delay.
I try to be here most weekdays and some weekends. If you respond and I do not respond back right away I will do so as soon as I can.Dear customer, have you checked the turbo and do you have any mechanical fault in your car?Thanks in advance.
Dear customer, i recommed to never use additives in the fuel tank or in the engine oil, much less in the transmission I always recommend this, because these make the engines work outside their normal operation.
Dear customer, if after all the work you did to your Audi, they did not disassemble the tank and cleaned the fuel with the additive effectively you will continue to present smoke in the exhaust because the engine will still burn the additive that is there, so I recommend you disassemble the tank and clean it as soon as possible to avoid to damage the components again by the additive that can still remain in the tank.Anyway, even after cleaning the fuel rail tank, there will still be a little bit of the additive and in the cylinders and in the injectors also so you will continue to present some for a few kilometers. This is normal.
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Best regards, Sebastian.
Just like the additive that is in the fuel system, the diesel will burn out during the days. So, for some days yet you will observe the smoke.
If the smoke was produced after using the additive is quite direct that it is causing the smoke, but also as I have indicated the rail injection could be affected, and may be necessary a verification of it, I consider that with the cleaning of the tank could test a time to see if the smoke disappears, if not, you must verify the injection system.