Hi, I was wondering if anyone could shed some light on an issue iv had for a while. Iv asked on the B6 forum but nobody could put their finger on it, just wondering if anyone with a B5 has had the same issue. Basically its a constant knocking/vibration coming from the centre/rear of the car when under full load usually in the lower gears. The car is a 2.5TDi Quattro - I have suspicions that it may be propshaft related? I have taken an MP3 of the sound its making (the link shows its a video but its just the name) The recording was taken in 3rd under full load. http://www.freefilehosting.net/video0026 Many thanks!