BBerniB
Problems with acceleration, increased fuel consumption and black smoke in a BMW 3 Series (2007, gasoline engine)
(Translated from German)
Summary of the thread
The 2007 BMW 3 Series is experiencing issues with acceleration, increased fuel consumption, and black smoke emission. The engine check lamp is also illuminated. The owner suspects the problem could be due to a heavy load on the NOx catalytic converter. Advice from the community suggests checking the exhaust system for leaks and having the NOx catalytic converter inspected at a garage. The owner is advised to repair any issues promptly to prevent further deterioration and higher costs.
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14 comment(s)
kurt.a
community_quotation:
community_author_wrote_on
Hello Kurt, of course this could be due to the fact that the desulphurization does not start because the system is not working properly and therefore the engine control unit prevents the desulphurization. Regarding the engine adaptations, please contact our support (not here in the community) but the support for the app itself.
Hello Benny, Thank you very much for your quick reply. I had already thought the same thing. I'll let you know after the workshop appointment
(community_translated_from_language)
fftransformation
Well, I get the message again and again, but when I do a regeneration drive I see that the lambda values are around 0.95 during the drive, the cat temperatures then go above 700 degrees and the stored mass in the Nox cat drops down to 122 within 30 minutes.
(community_translated_from_language)
CarlyMechanic
community_quotation:
community_author_wrote_on
Well, I get the message again and again, but when I do a regeneration drive I see that the lambda values are around 0.95 during the drive, the cat temperatures then go above 700 degrees and the stored mass in the Nox cat drops down to 122 within 30 minutes.
It seems like you're on the right track with the regeneration drive. The lambda values and cat temperatures you're seeing are within the normal range. However, if the message keeps coming back, there might be another underlying issue. It could be a faulty sensor or a problem with the ECU. I would recommend having a professional mechanic take a look at it to ensure everything is functioning properly. Please keep us updated on your progress. Do you have any other questions or concerns?
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CarlyAdminBenny
Hello Kurt, of course this could be due to the fact that the desulphurization does not start because the system is not working properly and therefore the engine control unit prevents the desulphurization. Regarding the engine adaptations, please contact our support (not here in the community) but the support for the app itself.
(community_translated_from_language)