I’m hoping you can help...
My S3 has suddenly developed a strange shudder/noise when the revs are falling and falling through about 1,500 rpm. It only happens in neural, when the revs are falling after rev’ing the car (zero throttle). It gets to about 1,500 rpm, the revs suddenly fall slower (like going through a sticky spot) and there is a slight shudder/noise and then it goes away again. Happens every time. Can’t feel it when driving and it pulls very clean all the way from 0 rpm to the redline.
Anyone got any idea what it could be? I’m thinking vacuum issue, or some sort of air leak? No faults on VCDS by the way.