jc07030 Posted July 7, 2023 Share Posted July 7, 2023 Audi A3 2014 2.0TDI. Floored in Sport mode on motorway, all up to temp. Suddenly car started vibrating/juddering and now making this noise. Any idea what it might be? Knocking follows rpms. Thanks AudiA3.mp4 Quote Link to comment Share on other sites More sharing options...
Steve Q Posted July 7, 2023 Share Posted July 7, 2023 I'd recommend a diagnostic check to see if any fault codes flag up. The knocking in my case on my old a6 is the crankshaft. Hopefully yours won't be that bad. Quote Link to comment Share on other sites More sharing options...
jc07030 Posted July 8, 2023 Author Share Posted July 8, 2023 Scanned car with obdeleven, no codes stored. Knocking does seem to dissapear while off the throttle coasting. This makes me think it might be bad injector as car felt like down on power a bit and mpg were lower than usual. Will update if I find the issue. Quote Link to comment Share on other sites More sharing options...
Steve Q Posted July 13, 2023 Share Posted July 13, 2023 Please keep us posted. If it were an injector you'd think it would throw up a code. Quote Link to comment Share on other sites More sharing options...
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