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Engine noise and particulate filter warning on Audi A6
(Translated from German)
Summary of the thread
An Audi A6 owner is experiencing rough engine running, with clicking or knocking noises at startup and jerking during acceleration, alongside a particulate filter warning. Possible causes include low or dirty engine oil, faulty injectors, or a clogged fuel filter. Suggested solutions involve checking and possibly changing the engine oil, inspecting the injectors and fuel filter, and taking a longer drive at highway speeds to regenerate the particulate filter.
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AUDI
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A6
CarlyMechanic
Start by checking the engine oil level and quality, as low or dirty oil can cause knocking noises and affect engine performance. If the oil is fine, consider inspecting the injectors and fuel filter, as these can also lead to rough running and jerking. For the particulate filter warning, try a longer drive at highway speeds to help regenerate the filter. Let me know how it goes or if you have any further questions!