jc07030

Hi, Anyone familiar with this metallic ticking noise? Sounds like loose chain, but it is 2.0 TDI on Audi A3 8V. Could it be sign of oil pump going bad? VID_20250710_140426107~3.mp4 VID_20250711_101802402~2.mp4

Audi A3 2.0 TDI CRLB engine. Had injectors removed and took a chance to look in cylinder walls with a camera. All 4 of them look like in the picture and video. Why would there be vertical and horizontal score marks? This can't be normal? 20240419120956072.mp4

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.

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

Hi all, Can someone please tell me what is this noise coming from engine in the video below? It increases with revs, cold or hot. Sounds like metal scraping or loose chain, which this car does not have. Any help would be great. Thanks. https://m.youtube.com/watch?v=0GOddaaZjp4